Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach
Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier trans...
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| Autor*in: |
Khalifa, E. Ben [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 |
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| Übergeordnetes Werk: |
Enthalten in: International journal of environmental science and technology - Tehran : Islamic Azad University, 2004, 20(2022), 4 vom: 23. Mai, Seite 4111-4126 |
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| Übergeordnetes Werk: |
volume:20 ; year:2022 ; number:4 ; day:23 ; month:05 ; pages:4111-4126 |
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| DOI / URN: |
10.1007/s13762-022-04270-0 |
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| Katalog-ID: |
SPR04962511X |
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| 100 | 1 | |a Khalifa, E. Ben |e verfasserin |0 (orcid)0000-0001-7813-8120 |4 aut | |
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| 520 | |a Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. | ||
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| 700 | 1 | |a Benzi, P. |4 aut | |
| 700 | 1 | |a Hamrouni, B. |4 aut | |
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10.1007/s13762-022-04270-0 doi (DE-627)SPR04962511X (SPR)s13762-022-04270-0-e DE-627 ger DE-627 rakwb eng Khalifa, E. Ben verfasserin (orcid)0000-0001-7813-8120 aut Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. Carbon (dpeaa)DE-He213 Banana peels (dpeaa)DE-He213 Chemical modification (dpeaa)DE-He213 Doehlert design (dpeaa)DE-He213 Azaiez, S. aut Magnacca, G. aut Cesano, F. aut Benzi, P. aut Hamrouni, B. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 20(2022), 4 vom: 23. Mai, Seite 4111-4126 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:20 year:2022 number:4 day:23 month:05 pages:4111-4126 https://dx.doi.org/10.1007/s13762-022-04270-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER 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_65 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_2008 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_2232 GBV_ILN_2336 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 AR 20 2022 4 23 05 4111-4126 |
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10.1007/s13762-022-04270-0 doi (DE-627)SPR04962511X (SPR)s13762-022-04270-0-e DE-627 ger DE-627 rakwb eng Khalifa, E. Ben verfasserin (orcid)0000-0001-7813-8120 aut Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. Carbon (dpeaa)DE-He213 Banana peels (dpeaa)DE-He213 Chemical modification (dpeaa)DE-He213 Doehlert design (dpeaa)DE-He213 Azaiez, S. aut Magnacca, G. aut Cesano, F. aut Benzi, P. aut Hamrouni, B. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 20(2022), 4 vom: 23. Mai, Seite 4111-4126 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:20 year:2022 number:4 day:23 month:05 pages:4111-4126 https://dx.doi.org/10.1007/s13762-022-04270-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER 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_65 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_2008 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_2232 GBV_ILN_2336 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 AR 20 2022 4 23 05 4111-4126 |
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10.1007/s13762-022-04270-0 doi (DE-627)SPR04962511X (SPR)s13762-022-04270-0-e DE-627 ger DE-627 rakwb eng Khalifa, E. Ben verfasserin (orcid)0000-0001-7813-8120 aut Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. Carbon (dpeaa)DE-He213 Banana peels (dpeaa)DE-He213 Chemical modification (dpeaa)DE-He213 Doehlert design (dpeaa)DE-He213 Azaiez, S. aut Magnacca, G. aut Cesano, F. aut Benzi, P. aut Hamrouni, B. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 20(2022), 4 vom: 23. Mai, Seite 4111-4126 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:20 year:2022 number:4 day:23 month:05 pages:4111-4126 https://dx.doi.org/10.1007/s13762-022-04270-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER 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_65 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_2008 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_2232 GBV_ILN_2336 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 AR 20 2022 4 23 05 4111-4126 |
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10.1007/s13762-022-04270-0 doi (DE-627)SPR04962511X (SPR)s13762-022-04270-0-e DE-627 ger DE-627 rakwb eng Khalifa, E. Ben verfasserin (orcid)0000-0001-7813-8120 aut Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. Carbon (dpeaa)DE-He213 Banana peels (dpeaa)DE-He213 Chemical modification (dpeaa)DE-He213 Doehlert design (dpeaa)DE-He213 Azaiez, S. aut Magnacca, G. aut Cesano, F. aut Benzi, P. aut Hamrouni, B. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 20(2022), 4 vom: 23. Mai, Seite 4111-4126 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:20 year:2022 number:4 day:23 month:05 pages:4111-4126 https://dx.doi.org/10.1007/s13762-022-04270-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER 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_65 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_2008 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_2232 GBV_ILN_2336 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 AR 20 2022 4 23 05 4111-4126 |
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10.1007/s13762-022-04270-0 doi (DE-627)SPR04962511X (SPR)s13762-022-04270-0-e DE-627 ger DE-627 rakwb eng Khalifa, E. Ben verfasserin (orcid)0000-0001-7813-8120 aut Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. Carbon (dpeaa)DE-He213 Banana peels (dpeaa)DE-He213 Chemical modification (dpeaa)DE-He213 Doehlert design (dpeaa)DE-He213 Azaiez, S. aut Magnacca, G. aut Cesano, F. aut Benzi, P. aut Hamrouni, B. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 20(2022), 4 vom: 23. Mai, Seite 4111-4126 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:20 year:2022 number:4 day:23 month:05 pages:4111-4126 https://dx.doi.org/10.1007/s13762-022-04270-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER 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_65 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_2008 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_2232 GBV_ILN_2336 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 AR 20 2022 4 23 05 4111-4126 |
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Khalifa, E. Ben |
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Khalifa, E. Ben misc Carbon misc Banana peels misc Chemical modification misc Doehlert design Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach |
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Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach Carbon (dpeaa)DE-He213 Banana peels (dpeaa)DE-He213 Chemical modification (dpeaa)DE-He213 Doehlert design (dpeaa)DE-He213 |
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synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach |
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Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach |
| abstract |
Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 |
| abstractGer |
Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 |
| abstract_unstemmed |
Abstract Hexavalent chromium removal was evaluated through adsorption on two biochars, chemically modified with zinc chloride at different impregnation ratios. The prepared materials were characterized via elemental analysis, surface area, particle size distribution, pH of zero charge, Fourier transform infrared spectroscopy and scanning electronic microscopy analysis. The biochar prepared at 1:1 impregnation ratio developed higher microporosity (65%) and a higher specific area (1293 $ m^{2} $ $ g^{−1} $). Three-factor model was investigated to evaluate the removal efficiency of each biochar, according to the Doehlert design. The experimental results revealed that pH is the most significant factor and negatively affects the removal yield. Optimal adsorption conditions were obtained at pH equal to 1.77 and 1.83, adsorbent amount of 11 mg and at 31 °C, leading to hexavalent chromium removal yield of 70% and 95%, for biochars with 1:0.5 and 1:1 impregnation ratios, respectively. Maximum Langmuir adsorption capacities of hexavalent chromium were found to be 57.72 and 177.64 mg $ g^{−1} $, for biochars with impregnation ratios 1:0.5 and 1:1, respectively. © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2022 |
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Synthesis and characterization of promising biochars for hexavalent chromium removal: application of response surface methodology approach |
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https://dx.doi.org/10.1007/s13762-022-04270-0 |
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Azaiez, S. Magnacca, G. Cesano, F. Benzi, P. Hamrouni, B. |
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Azaiez, S. Magnacca, G. Cesano, F. Benzi, P. Hamrouni, B. |
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10.1007/s13762-022-04270-0 |
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2024-07-04T01:36:38.121Z |
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| score |
7.399679 |