Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions
As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorpt...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Tang, Xiaonan [verfasserIn] |
|---|
| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2014transfer abstract |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects - Moreno-Cabezali, Belen Maria ELSEVIER, 2020, an international journal devoted to fundamental aspects of structure, interactions and dynamic processes in simple, molecular and complex liquids, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:191 ; year:2014 ; pages:73-78 ; extent:6 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.molliq.2013.11.034 |
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| 245 | 1 | 0 | |a Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions |
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| 520 | |a As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. | ||
| 520 | |a As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. | ||
| 700 | 1 | |a Zhang, Qiang |4 oth | |
| 700 | 1 | |a Liu, Zhengjie |4 oth | |
| 700 | 1 | |a Pan, Kefeng |4 oth | |
| 700 | 1 | |a Dong, Yunhui |4 oth | |
| 700 | 1 | |a Li, Yueyun |4 oth | |
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10.1016/j.molliq.2013.11.034 doi GBVA2014004000011.pica (DE-627)ELV02786569X (ELSEVIER)S0167-7322(13)00414-5 DE-627 ger DE-627 rakwb eng 540 540 DE-600 004 VZ 85.35 bkl 54.80 bkl Tang, Xiaonan verfasserin aut Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. Zhang, Qiang oth Liu, Zhengjie oth Pan, Kefeng oth Dong, Yunhui oth Li, Yueyun oth Enthalten in Elsevier Moreno-Cabezali, Belen Maria ELSEVIER Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects 2020 an international journal devoted to fundamental aspects of structure, interactions and dynamic processes in simple, molecular and complex liquids New York, NY [u.a.] (DE-627)ELV004280490 volume:191 year:2014 pages:73-78 extent:6 https://doi.org/10.1016/j.molliq.2013.11.034 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.35 Fertigung VZ 54.80 Angewandte Informatik VZ AR 191 2014 73-78 6 045F 540 |
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10.1016/j.molliq.2013.11.034 doi GBVA2014004000011.pica (DE-627)ELV02786569X (ELSEVIER)S0167-7322(13)00414-5 DE-627 ger DE-627 rakwb eng 540 540 DE-600 004 VZ 85.35 bkl 54.80 bkl Tang, Xiaonan verfasserin aut Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. Zhang, Qiang oth Liu, Zhengjie oth Pan, Kefeng oth Dong, Yunhui oth Li, Yueyun oth Enthalten in Elsevier Moreno-Cabezali, Belen Maria ELSEVIER Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects 2020 an international journal devoted to fundamental aspects of structure, interactions and dynamic processes in simple, molecular and complex liquids New York, NY [u.a.] (DE-627)ELV004280490 volume:191 year:2014 pages:73-78 extent:6 https://doi.org/10.1016/j.molliq.2013.11.034 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.35 Fertigung VZ 54.80 Angewandte Informatik VZ AR 191 2014 73-78 6 045F 540 |
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10.1016/j.molliq.2013.11.034 doi GBVA2014004000011.pica (DE-627)ELV02786569X (ELSEVIER)S0167-7322(13)00414-5 DE-627 ger DE-627 rakwb eng 540 540 DE-600 004 VZ 85.35 bkl 54.80 bkl Tang, Xiaonan verfasserin aut Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. Zhang, Qiang oth Liu, Zhengjie oth Pan, Kefeng oth Dong, Yunhui oth Li, Yueyun oth Enthalten in Elsevier Moreno-Cabezali, Belen Maria ELSEVIER Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects 2020 an international journal devoted to fundamental aspects of structure, interactions and dynamic processes in simple, molecular and complex liquids New York, NY [u.a.] (DE-627)ELV004280490 volume:191 year:2014 pages:73-78 extent:6 https://doi.org/10.1016/j.molliq.2013.11.034 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.35 Fertigung VZ 54.80 Angewandte Informatik VZ AR 191 2014 73-78 6 045F 540 |
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10.1016/j.molliq.2013.11.034 doi GBVA2014004000011.pica (DE-627)ELV02786569X (ELSEVIER)S0167-7322(13)00414-5 DE-627 ger DE-627 rakwb eng 540 540 DE-600 004 VZ 85.35 bkl 54.80 bkl Tang, Xiaonan verfasserin aut Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. Zhang, Qiang oth Liu, Zhengjie oth Pan, Kefeng oth Dong, Yunhui oth Li, Yueyun oth Enthalten in Elsevier Moreno-Cabezali, Belen Maria ELSEVIER Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects 2020 an international journal devoted to fundamental aspects of structure, interactions and dynamic processes in simple, molecular and complex liquids New York, NY [u.a.] (DE-627)ELV004280490 volume:191 year:2014 pages:73-78 extent:6 https://doi.org/10.1016/j.molliq.2013.11.034 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.35 Fertigung VZ 54.80 Angewandte Informatik VZ AR 191 2014 73-78 6 045F 540 |
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10.1016/j.molliq.2013.11.034 doi GBVA2014004000011.pica (DE-627)ELV02786569X (ELSEVIER)S0167-7322(13)00414-5 DE-627 ger DE-627 rakwb eng 540 540 DE-600 004 VZ 85.35 bkl 54.80 bkl Tang, Xiaonan verfasserin aut Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. Zhang, Qiang oth Liu, Zhengjie oth Pan, Kefeng oth Dong, Yunhui oth Li, Yueyun oth Enthalten in Elsevier Moreno-Cabezali, Belen Maria ELSEVIER Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects 2020 an international journal devoted to fundamental aspects of structure, interactions and dynamic processes in simple, molecular and complex liquids New York, NY [u.a.] (DE-627)ELV004280490 volume:191 year:2014 pages:73-78 extent:6 https://doi.org/10.1016/j.molliq.2013.11.034 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.35 Fertigung VZ 54.80 Angewandte Informatik VZ AR 191 2014 73-78 6 045F 540 |
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Enthalten in Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects New York, NY [u.a.] volume:191 year:2014 pages:73-78 extent:6 |
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The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. 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Application of a fuzzy-logic based model for risk assessment in additive manufacturing R&D projects |
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removal of cu(ii) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions |
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Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions |
| abstract |
As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. |
| abstractGer |
As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. |
| abstract_unstemmed |
As a natural and low-cost material, loofah fibers were applied as an adsorbent to remove Cu(II) from aqueous solutions. The effect of adsorption conditions, such as pH, foreign ions, humic substances (HS), contact time and temperature on the Cu(II) removal, were investigated intensively. The adsorption of Cu(II) on loofah fibers was strongly dependent on pH and foreign ions, and the adsorption of Cu(II) was increased in the presence of humic acid (HA) at pH<8.0 but decreased at pH>8.0. The Langmuir and Freundlich isotherm models were used to simulate the adsorption isotherms. The simulated adsorption isotherms, which were obtained from Langmuir and Freundlich isotherm models, showed that both of the two models were applicable to this system. On the basis of the experimental data, the Langmuir isotherm model could fit it better according to linear correlation coefficient (R2). The optimum kinetics of adsorption was found to fit the pseudo-second-order kinetic model. The values of ∆H° and ∆G° indicated that the adsorption process was exothermic and spontaneous. |
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Removal of Cu(II) by loofah fibers as a natural and low-cost adsorbent from aqueous solutions |
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Zhang, Qiang Liu, Zhengjie Pan, Kefeng Dong, Yunhui Li, Yueyun |
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