聚氯乙烯移动树脂的化学修饰、表征及对Cr（Ⅵ）的高效吸附

doi:10.16085/j.issn.1000-6613.2017-0077

化工进展 ›› 2017, Vol. 36 ›› Issue (10): 3765-3770.DOI: 10.16085/j.issn.1000-6613.2017-0077

聚氯乙烯移动树脂的化学修饰、表征及对Cr（Ⅵ）的高效吸附

刘傲, 邵功磊, 张中路, 黄佳佳, 原思国

郑州大学化工与能源学院, 郑州市现代分离技术重点实验室, 河南郑州 450001

收稿日期:2017-01-13 修回日期:2017-04-05 出版日期:2017-10-05 发布日期:2017-10-05
通讯作者: 原思国,教授,主要从事吸附分离功能高分子材料合成及性能研究.
作者简介:刘傲(1991-),男,硕士研究生,主要从事吸附分离功能高分子材料合成及性能研究.
基金资助:
国家自然科学基金项目（51503184）。

Chemical modification,characteristics of PVC resin and its adsorption properties for Cr(Ⅵ)

LIU Ao, SHAO Gonglei, ZHANG Zhonglu, HUANG Jiajia, YUAN Siguo

Zhengzhou Key Laboratory of Advanced Separation Technology, School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, China

Received:2017-01-13 Revised:2017-04-05 Online:2017-10-05 Published:2017-10-05

摘要/Abstract

摘要： 通过聚氯乙烯（PVC）树脂与三乙烯四胺（TETA）的交联接枝反应制得一种高交换容量（10.52mmol/g）吸附树脂新材料，并通过红外分析（FTIR）、元素分析（EA）、热重分析（TG）等仪器对产物结构与反应机理进行了分析与表征。此外，还初步研究了PVC-TETA树脂对水中六价铬的吸附与再生性能。结果表明：PVC能成功地与TETA 发生反应而制备出PVC-TETA吸附树脂；在改性的过程中，PVC会出现不同程度的消除反应而形成碳碳双键；合成的PVC-TETA吸附树脂对Cr（Ⅵ）吸附容量高达563mg/g，其吸附等温线符合 Langmuir 模型；该树脂经5次吸附再生循环后其吸附容量保持稳定，具有很好的实际应用性能。

关键词: 离子交换, 废水, 吸附, 分离

Abstract: A new kind adsorptive material of high exchange capacity (10.52mmol/g) had been synthesized via the graft reaction of PVC resin with triethylene tetramine (TETA),and its structure and synthesis mechanism were investigated by the means of FTIR,EA,TG and chemical method. The results showed that TETA group had been introduced into PVC chain successfully along with the elimination of HCl. Moreover,the maximum adsorption capacity of the novel adsorptive resin was about 563mg/g for Cr(Ⅵ),and the adsorptive behavior was preferably described by the Langmuir isotherm model. After five times cycles of adsorption-desorption,the resin still kept excellent adsorption performance. The prepred PVC-TETA resin is expected to have a promising prospect in the treatment of chromium-containing wastewater.

Key words: ion exchange, waste water, adsorption, separation

中图分类号:

TL284

刘傲, 邵功磊, 张中路, 黄佳佳, 原思国. 聚氯乙烯移动树脂的化学修饰、表征及对Cr（Ⅵ）的高效吸附[J]. 化工进展, 2017, 36(10): 3765-3770.

LIU Ao, SHAO Gonglei, ZHANG Zhonglu, HUANG Jiajia, YUAN Siguo. Chemical modification,characteristics of PVC resin and its adsorption properties for Cr(Ⅵ)[J]. Chemical Industry and Engineering Progress, 2017, 36(10): 3765-3770.

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聚氯乙烯移动树脂的化学修饰、表征及对Cr（Ⅵ）的高效吸附

Chemical modification,characteristics of PVC resin and its adsorption properties for Cr(Ⅵ)

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