| Adsorption and desorption properties of D318 resin for Cr（Ⅵ） |
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| 引用本文： | 舒增年,熊春华. Adsorption and desorption properties of D318 resin for Cr（Ⅵ）[J]. 中南工业大学学报(英文版), 2009, 16(3): 405-409. DOI: 10.1007/s11771-009-0068-5 |
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| 作者姓名： | 舒增年 熊春华 |
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| 作者单位： | [1]Department of Chemistry, Lishui University, Lishui 323000, China [2]College of Food Science, Biotechnology and Environmental Engineering, Zhejiang Gongshang University, Hangzhou 310035, China |
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| 基金项目： | Project （Y304121 ） supported by the Natural Science Foundation of Zhejiang Province, China |
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| 摘 要： | ![]()
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| 关 键 词： | 吸附树脂 吸附能力 Cr 脱附性能 NaOH溶液 热力学参数 表观活化能 摩尔比 |
Adsorption and desorption properties of D318 resin for Cr(VI) |
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| Zeng-nian Shu and Chun-hua Xiong. Adsorption and desorption properties of D318 resin for Cr(VI)[J]. Journal of Central South University of Technology, 2009, 16(3): 405-409. DOI: 10.1007/s11771-009-0068-5 |
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| Authors: | Zeng-nian Shu and Chun-hua Xiong |
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| Affiliation: | (1) Department of Chemistry, Lishui University, Lishui, 323000, China;(2) College of Food Science, Biotechnology and Environmental Engineering, Zhejiang Gongshang University, Hangzhou, 310035, China |
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| Abstract: | ![]()
The adsorption capability of D318 resin for Cr(VI) was investigated by chemistry analysis. Experimental results show that D318 resin has the best adsorption ability for Cr(VI) at pH=3.16 in HAc-NaAc medium. The statically saturated adsorption capacity of the resin is 265.4 mg/g. The thermodynamic adsorption parameters, enthalpy change ΔH and free energy change ΔG 298 of the adsorption reaction are 4.81 and −5.16 kJ/mol, respectively. The apparent activation energy E a is 22.4 kJ/mol. The adsorption behavior obeys the Freundlich isotherm. The molar coordination ratio of the functional group of resin to Cr(VI) is 3:2. Cr(VI) adsorbed on D318 resin can be eluted by 5%NaOH-5%NaCl quantitatively. Foundation item: Project (Y304121) supported by the Natural Science Foundation of Zhejiang Province, China |
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| Keywords: | Cr(VI) D318 resin adsorption desorption dynamics thermodynamics |
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