Preparation of a Novel Acid Doped Polyaniline Adsorbent for Removal of Anionic Pollutant from Wastewater

被引:0
|
作者
李佳佳 [1 ]
王其召 [1 ]
BAI Yan [2 ]
JIA Yongming [1 ]
SHANG Pan [1 ]
黄皓浩 [3 ]
WANG Fangping [1 ]
机构
[1] College of Chemistry and Chemical Engineering, Northwest Normal University, Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Gansu Polymer Materials
[2] College of Geography and Environment Science, Northwest Normal University
[3] College of Materials Science and Engineering, South China University of Technology
基金
中国国家自然科学基金;
关键词
polyaniline; modification; anionic dye; adsorption;
D O I
暂无
中图分类号
TQ424.3 [有机吸附剂]; X703 [废水的处理与利用];
学科分类号
0817 ; 083002 ;
摘要
Polyaniline(PANI) was one of the most extensively studied adsorbents due to its low cost and good environmental stability. The objective of the current study was to improve the selective capabilities of PANI for anionic dyes. We found that the acid doped PANI prepared with hydrochloric acid and p-toluenesulfonic acid(PTSA) could selectively adsorb anionic dyes. It exhibited very good selectivity for OG dye, the mechanism was proposed based on the chemical interaction of PANI with the sulfonate group of the dyes. The effects of solution p H, initial dye concentration, and different HCl/PTSA mole ratios on the adsorption capacity of OG have been investigated. Kinetic simulations indicated that the adsorption process could be well represented by pseudo-second-order kinetic plots. The isothermal adsorption curve fitting also showed that the adsorption process could be well described by the Langmuir isothermal equation. The results showed that acid doped PANI could be employed as a promising adsorbent for anion removal from dye wastewater.
引用
收藏
页码:1085 / 1091
页数:7
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