Single and competitive adsorption between Indigo Carmine and Methyl orange dyes on quaternized kapok fiber adsorbent prepared by radiation technique

被引：34

作者：

Du, Jifu ^{[1
]}

Wu, Yuzhou ^{[1
]}

Dong, Zhen ^{[2
]}

Zhang, Manman ^{[3
]}

Yang, Xin ^{[1
]}

Xiong, Houhua ^{[1
]}

Zhao, Long ^{[3
]}

机构：

[1] Hubei Univ Sci & Technol, Sch Nucl Technol & Chem & Biol, Hubei Key Lab Radiat Chem & Funct Mat, Xianning 437100, Peoples R China

[2] Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2022年 / 292卷

基金：

中国国家自然科学基金;

关键词：

Radiation grafting; Kapok fiber; Indigo Carmine; Methyl Orange; Methacryloxyethyltrimethyl ammonium chloride; AQUEOUS-SOLUTION; CELLULOSE; REMOVAL; BIOSORBENT; KINETICS; IONS;

D O I：

10.1016/j.seppur.2022.121103

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Since industrial effluents contain several dye species, investigation on the competitive adsorption and selective adsorption mechanism is quite necessary. In this paper, single and competitive adsorption of Indigo Carmine (IC) and Methyl Orange (MO) dyes using methacryloxyethyltrimethyl ammonium chloride functionalized kapok fiber (DKF) were investigated. The maximum adsorption capacity of individual adsorption was 1011.3 mg/g and 1079.9 mg/g for MO and IC, respectively. However, IC has significant inhibitory effect on MO uptake but IC adsorption almost not change in binary system, which is in contrast to the reported results that competitive adsorption capacity was greatly reduced for each dye in binary system. The separation factor of IC/MO could reach 129.53 when the concentration of IC and MO equal 0.2 mol/L, indicating good selectivity toward IC. The selective adsorption mechanism between MO and IC was attributed to the displacement impact. Therefore, this work provided a potential adsorbent for selectively removing dye from industrial effluents and give a new sight to the competitive adsorption mechanism among dyes.

引用

页数：9

共 49 条

[1] Adsorption of toxic dye in wastewater onto magnetic NVP/CS nanocomposite hydrogels synthesized using gamma radiation [J].