| 等离子体法改性凹凸棒土吸附多氯联苯研究 |
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| 引用本文： | 谭立强,蒋金龙,冯良东,胡涛,钱运华.等离子体法改性凹凸棒土吸附多氯联苯研究[J].淮阴工学院学报,2013(5):1-6. |
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| 作者姓名： | 谭立强 蒋金龙 冯良东 胡涛 钱运华 |
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| 作者单位： | [1]淮阴工学院生命科学与化学工程学院,江苏淮安223003 [2]江苏省凹土资源利用重点实验室,江苏淮安223003 |
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| 基金项目： | 江苏省科技型企业技术创新资金项目（BC2011163） |
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| 摘 要： | 运用低温等离子体改性技术将壳聚糖(CTS)接枝到凹凸棒土(ATP)表面(ATP-g-CTS),并将其应用于含2,3,3'-三氯联苯(2,3,3'-TCB)废水溶液的吸附研究。实验中应用假一级速率方程、假二级速率方程、动力学方程、Langmuir、Freundlich和D-R等动力学及热力学模型对实验数据进行模拟。实验结果表明,假二级速率方程和Langmuir模型能更好地模拟相关实验数据,ATP-g-CTS对2,3,3'-TCB主要是化学吸附,是一个吸热的过程,ATP-g-CTS对多氯联苯是一种较好的吸附剂。
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| 关 键 词： | 等离子体 凹凸棒土 2 3 3'-三氯联苯 吸附 |
Kinetic and Thermodynamic Study on the Removal of Aqueous Polychlorinated Biphenyl by Plasma Induced Grafting Attapulgite |
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| Affiliation: | TAN Li - qiang, JIANG Jin - long , FENG Liang - dong, HU Tao , QIAN Yun - hua ( 1. Faeuhy of Life Science and Chemical Engineering, Huaiyin Institute of Teehnology, Huaihn Jiangsu 223003, China ; 2. Attapulgite Resource Utilization Key Laboratory of Jiangsu Provinee,Huai＇an Jiangsu 223003 ,China) |
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| Abstract: | In this work,plasma technique was applied to graft chitosan（CS） on attapulgite（ATP） to improve its dispersion property and sorption ability to 2,3,3＇-trichlorobiphenyl. The pseudo-first and second-order rate equations,kinetic equations,Langmuir,Freundlich and D-R models were applied to simulate the sorption kinetics and isotherms. The results indicated that the experiment data were fitted better by the pseudo-second-order and Langmuir model. Chemical sorption mechanism was predominant and the sorption was an endothermic process. ATP-g-CTS is a suitable sorbent for polychlorinated biphenyls in aqueous solutions. |
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| Keywords: | plasma attapulgite 2 3 3＇-trichlorobiphenyl adsorption |
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