Bentonite-Copolymer Composite for Removing Basic Fuchsin

Bentonite-Copolymer Composite for Removing Basic Fuchsin
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用于去除碱性品红的膨润土-共聚物复合材料

DOI:
10.4028/www.scientific.net/kem.726.345
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发表时间:
2017-01
期刊:
Key Engineering Materials
影响因子:
--
通讯作者:
Rong-Min Wang
Rong-Min Wang
中科院分区:
其他
文献类型:
--
作者:
Yu-Feng He;Hong Li;Zhenhua Zhang;Tingjun Lu;Rong-Min Wang

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碱性品红(BF)是一种有毒的三苯甲烷类染料,分子式为C20 H20 ClN 3,容易引起严重的公共卫生问题。需要开发一种经济有效的方法来从含有BF的废水中去除它。本文采用原位共聚法制备了N,N '-亚甲基双丙烯酰胺交联的聚(马来酸酐-丙烯酸-醋酸乙烯酯)/钠基膨润土复合吸附剂。对吸附剂NaB-PMAVM进行了表征,并将其应用于BF的去除。实验结果表明,BF的去除率达到95.96%。吸附等温线符合Freundlich吸附等温式,吸附动力学符合准二级动力学。
Basic Fuchsin (BF) is a toxic triphenylmethane dye with molecular formula C20H20ClN3, which is easy to caused serious public health problems. There is a need to develop a cost effective method for its removal from the wastewater containing BF. Here, a novel composite polymer adsorbent, poly (maleic anhydride - acrylic acid - vinyl acetate)/Na-bentonite composite cross-linked with N,N'-methylenebisacrylamide was prepared by in situ copolymerization. The polymer adsorbent (NaB-PMAVM) was characterized and applied to remove BF. It was found that the removal of BF reached to 95.96%. The adsorption isotherms and kinetics were best-fit with the Freundlich isotherm model and the pseudo-second-order kinetic, respectively.
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