Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite
Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained...
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| Autor*in: |
Li, Longxiang [verfasserIn] Zhou, Zhongkui [verfasserIn] Guo, Yadan [verfasserIn] Zhang, Yishuo [verfasserIn] Zhao, Yi [verfasserIn] Xin, Yan [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2024 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Water, air & soil pollution - Springer International Publishing, 1971, 235(2024), 6 vom: 21. Mai |
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| Übergeordnetes Werk: |
volume:235 ; year:2024 ; number:6 ; day:21 ; month:05 |
| Links: |
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| DOI / URN: |
10.1007/s11270-024-07159-5 |
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SPR055929508 |
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| 520 | |a Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. | ||
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10.1007/s11270-024-07159-5 doi (DE-627)SPR055929508 (SPR)s11270-024-07159-5-e DE-627 ger DE-627 rakwb eng 333.7 VZ 43.50 bkl Li, Longxiang verfasserin aut Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. Bentonite (dpeaa)DE-He213 Intropin (dpeaa)DE-He213 Uranium (dpeaa)DE-He213 Adsorption model (dpeaa)DE-He213 Adsorption mechanism (dpeaa)DE-He213 Zhou, Zhongkui verfasserin aut Guo, Yadan verfasserin aut Zhang, Yishuo verfasserin aut Zhao, Yi verfasserin aut Xin, Yan verfasserin aut Enthalten in Water, air & soil pollution Springer International Publishing, 1971 235(2024), 6 vom: 21. Mai (DE-627)271349417 (DE-600)1479824-4 1573-2932 nnns volume:235 year:2024 number:6 day:21 month:05 https://dx.doi.org/10.1007/s11270-024-07159-5 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.50 VZ AR 235 2024 6 21 05 |
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10.1007/s11270-024-07159-5 doi (DE-627)SPR055929508 (SPR)s11270-024-07159-5-e DE-627 ger DE-627 rakwb eng 333.7 VZ 43.50 bkl Li, Longxiang verfasserin aut Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. Bentonite (dpeaa)DE-He213 Intropin (dpeaa)DE-He213 Uranium (dpeaa)DE-He213 Adsorption model (dpeaa)DE-He213 Adsorption mechanism (dpeaa)DE-He213 Zhou, Zhongkui verfasserin aut Guo, Yadan verfasserin aut Zhang, Yishuo verfasserin aut Zhao, Yi verfasserin aut Xin, Yan verfasserin aut Enthalten in Water, air & soil pollution Springer International Publishing, 1971 235(2024), 6 vom: 21. Mai (DE-627)271349417 (DE-600)1479824-4 1573-2932 nnns volume:235 year:2024 number:6 day:21 month:05 https://dx.doi.org/10.1007/s11270-024-07159-5 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.50 VZ AR 235 2024 6 21 05 |
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10.1007/s11270-024-07159-5 doi (DE-627)SPR055929508 (SPR)s11270-024-07159-5-e DE-627 ger DE-627 rakwb eng 333.7 VZ 43.50 bkl Li, Longxiang verfasserin aut Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. Bentonite (dpeaa)DE-He213 Intropin (dpeaa)DE-He213 Uranium (dpeaa)DE-He213 Adsorption model (dpeaa)DE-He213 Adsorption mechanism (dpeaa)DE-He213 Zhou, Zhongkui verfasserin aut Guo, Yadan verfasserin aut Zhang, Yishuo verfasserin aut Zhao, Yi verfasserin aut Xin, Yan verfasserin aut Enthalten in Water, air & soil pollution Springer International Publishing, 1971 235(2024), 6 vom: 21. Mai (DE-627)271349417 (DE-600)1479824-4 1573-2932 nnns volume:235 year:2024 number:6 day:21 month:05 https://dx.doi.org/10.1007/s11270-024-07159-5 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.50 VZ AR 235 2024 6 21 05 |
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10.1007/s11270-024-07159-5 doi (DE-627)SPR055929508 (SPR)s11270-024-07159-5-e DE-627 ger DE-627 rakwb eng 333.7 VZ 43.50 bkl Li, Longxiang verfasserin aut Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. Bentonite (dpeaa)DE-He213 Intropin (dpeaa)DE-He213 Uranium (dpeaa)DE-He213 Adsorption model (dpeaa)DE-He213 Adsorption mechanism (dpeaa)DE-He213 Zhou, Zhongkui verfasserin aut Guo, Yadan verfasserin aut Zhang, Yishuo verfasserin aut Zhao, Yi verfasserin aut Xin, Yan verfasserin aut Enthalten in Water, air & soil pollution Springer International Publishing, 1971 235(2024), 6 vom: 21. Mai (DE-627)271349417 (DE-600)1479824-4 1573-2932 nnns volume:235 year:2024 number:6 day:21 month:05 https://dx.doi.org/10.1007/s11270-024-07159-5 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.50 VZ AR 235 2024 6 21 05 |
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10.1007/s11270-024-07159-5 doi (DE-627)SPR055929508 (SPR)s11270-024-07159-5-e DE-627 ger DE-627 rakwb eng 333.7 VZ 43.50 bkl Li, Longxiang verfasserin aut Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. Bentonite (dpeaa)DE-He213 Intropin (dpeaa)DE-He213 Uranium (dpeaa)DE-He213 Adsorption model (dpeaa)DE-He213 Adsorption mechanism (dpeaa)DE-He213 Zhou, Zhongkui verfasserin aut Guo, Yadan verfasserin aut Zhang, Yishuo verfasserin aut Zhao, Yi verfasserin aut Xin, Yan verfasserin aut Enthalten in Water, air & soil pollution Springer International Publishing, 1971 235(2024), 6 vom: 21. Mai (DE-627)271349417 (DE-600)1479824-4 1573-2932 nnns volume:235 year:2024 number:6 day:21 month:05 https://dx.doi.org/10.1007/s11270-024-07159-5 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.50 VZ AR 235 2024 6 21 05 |
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Enthalten in Water, air & soil pollution 235(2024), 6 vom: 21. Mai volume:235 year:2024 number:6 day:21 month:05 |
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Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. 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Li, Longxiang |
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Li, Longxiang ddc 333.7 bkl 43.50 misc Bentonite misc Intropin misc Uranium misc Adsorption model misc Adsorption mechanism Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite |
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333.7 VZ 43.50 bkl Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite Bentonite (dpeaa)DE-He213 Intropin (dpeaa)DE-He213 Uranium (dpeaa)DE-He213 Adsorption model (dpeaa)DE-He213 Adsorption mechanism (dpeaa)DE-He213 |
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adsorption characteristics and mechanism of u(vi) in water by dopamine hydrochloride modified bentonite |
| title_auth |
Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite |
| abstract |
Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstractGer |
Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstract_unstemmed |
Abstract In this study, bentonite (B) was modified by hydrochloric acid dopamine (PDA), and the modification was confirmed by XRD, SEM, EDS and thermogravimetric analysis. Hydrochloric acid dopamine modified bentonite (PDA-B) was synthesized by a facile one-step hydrothermal method, and the obtained material exhibited particle-like polydopamine protrusions on the surface, which were distinctly different from natural bentonite, suggesting that PDA-B had abundant adsorption sites on the surface, which could enhance its adsorption performance for low-concentration U (VI). Single-factor tests and orthogonal experiments were conducted to optimize the adsorption conditions. The ideal conditions for adsorbing uranium-containing wastewater with an initial concentration of 10 mg/L were found to be a pH of 7.0, PDA-B dosage (m) of 2 g/L, a reaction time (t) of 150 min, room temperature, and an agitation speed (R) of 150 r/min. Under these conditions, the removal rate exceeded 98%. Adsorption isotherms and kinetic models were applied to the data, revealing that the uranium adsorption process by PDA-B adhered to the Freundlich isotherm adsorption model and the pseudo-second-order kinetic model. The adsorption process was determined to be endothermic and spontaneous. The adsorption characteristics of U(VI) were extensively examined using FTIR, and Zeta potential analyses, shedding light on the underlying removal mechanism. The study found that hexavalent uranium was adsorbed, and multiple factors including carbonyl, amino, hydroxyl, electrostatic attraction, and ion exchange played pivotal roles in the adsorption of uranium by PDA-B. Additionally, reusability tests demonstrated its practical reusability. In summary, the PDA-B adsorbent exhibits promising application prospects and can be effectively utilized for the purification and recovery of uranium-containing wastewater. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Adsorption Characteristics And Mechanism of U(Vi) In Water By Dopamine Hydrochloride Modified Bentonite |
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Zhou, Zhongkui Guo, Yadan Zhang, Yishuo Zhao, Yi Xin, Yan |
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|
| score |
7.165469 |