Magnetic modified chitosan composites for hexavalent chromium removal

被引：0
作者：
Wei, Bangchang [1 ]
Ji, Zheng [1 ]
Xu, Ya [1 ]
Kong, Shengnan [1 ]
Zhang, Yansong [1 ]
Li, Chuanrun [1 ,2 ]
Wang, Huchuan [1 ,2 ]
机构：
[1] Anhui Univ Chinese Med, Sch Pharm, Dept Med Chem, Hefei 230012, Anhui, Peoples R China
[2] Anhui Univ Chinese Med, Anhui Prov Key Lab Pharmaceut Preparat Technol & A, Hefei 230012, Anhui, Peoples R China
来源：
DESALINATION AND WATER TREATMENT | 2023年 / 311卷
关键词：
Modified chitosan; Composites; Adsorption; Hexavalent chromium; AQUEOUS-SOLUTIONS; ADSORPTION; CR(VI); CU(II); IONS; NANOPARTICLES; VI;
D O I：
10.5004/dwt.2023.30001
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this paper, we successfully prepared magnetic modified chitosan composites by mixing hydroxyapatite with polypropylene glycol modified chitosan and wrapping magnetic nanoparti-cles. The adsorption study of Cr(VI) revealed that the adsorption process was more in accordance with the pseudo-second-order kinetic and followed the Langmuir isotherm adsorption process, which indicated that the adsorption process was monolayer adsorption, and the fitted calcula-tions showed that the maximum adsorption capacity of Cr(VI) was 795.14 mg center dot g-1. Thermodynamic model reflected that the adsorption process was spontaneous heat absorption.
引用
收藏
页码：155 / 161
页数：7
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