Application of chitosan-coated quartz sand for Congo red adsorption from aqueous solution

被引：34

作者：

Feng, Tao ^{[1
]}

Zhang, Fan ^{[1
]}

Wang, Jie ^{[1
]}

Wang, Li ^{[1
]}

机构：

[1] Wuhan Univ Sci & Technol, Coll Resources & Environm Engn, Wuhan 430081, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2012年 / 125卷 / 03期

关键词：

chitosan; quartz sand; absorption; coated; Congo red; DYE REMOVAL; EQUILIBRIUM; ACID;

D O I：

10.1002/app.35670

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The preparation, characterization, and environmental application of chitosan-coated quartz sand for Congo red adsorption have been investigated. The absorbent was characterized by Fourier transform infrared spectrophotometer (FTIR) and scanning electron microscope (SEM). The experiments were carried out in a batch system to optimize operation variables: contact time, Congo red concentration, absorbent dosage, temperature, and pH. The optimum conditions for Congo red adsorption were pH 5, 45 degrees C and contact time of 4 h. An amount of 1 g of chitosan-coated quartz sand could successfully remove 96% of the dye form 50 mg/L Congo red solution. The adsorption kinetics and equilibrium isotherms showed that the sorption processes were better fitted by pseudo-second order equation and Langmuir equation, respectively. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

引用

页码：1766 / 1772

页数：7

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