Removal of chlorobenzene and 1,4-dichlorobenzene using novel poly-o-toluidine zirconium(IV) phosphotellurite exchanger

Resource-Efficient Technologies Pub Date : 2017-09-01 DOI:10.1016/j.reffit.2017.02.003

Aparna Mohan, Nimisha K.V., Janardanan C.

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引用次数: 6

Abstract

Novel hybrid exchanger poly-o-toluidine zirconium(IV) phosphotellurite was synthesized and physico-chemical properties of the material were well studied by FTIR, XRD, TGA, SEM-EDX and TEM analysis. The composite exchanger showed good ion exchange capacity and excellent removal potential towards US Environmental Protection Agency listed priority pollutants like chlorobenzene and 1,4-dichlorobenzene. The factors affecting the adsorption like time, pH and temperature were studied in detail using UV spectrophotometry. More than 90% of the pollutants were successfully removed using the exchanger. The composite also showed selectivity towards heavy metal ions, especially mercury ions. The sorption kinetics of the material was studied in detail using pseudo first order and pseudo second order kinetics. The material followed pseudo second order kinetic model indicating chemisorption of the pollutants. The composite can be successfully used for environmental remediation purposes.

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新型聚邻甲苯胺锆(IV)磷碲酸盐交换剂去除氯苯和1,4-二氯苯

合成了新型杂化交换剂聚邻甲苯胺磷酸碲酸锆，并通过红外光谱(FTIR)、x射线衍射(XRD)、热重分析(TGA)、扫描电子能谱(SEM-EDX)和透射电镜(TEM)等分析手段对材料的理化性质进行了研究。复合交换剂对氯苯和1,4-二氯苯等美国环境保护署列为重点污染物具有良好的离子交换能力和良好的去除潜力。用紫外分光光度法研究了时间、pH、温度等因素对吸附的影响。使用该换热器可成功去除90%以上的污染物。该复合材料对重金属离子，特别是汞离子也有选择性。采用拟一阶和拟二阶动力学方法对材料的吸附动力学进行了详细研究。该材料符合准二级动力学模型，表明污染物的化学吸附。该复合材料可以成功地用于环境修复目的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Resource-Efficient Technologies

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审稿时长

7 weeks