Adsorption of XSD-296 resin for Cr(Ⅵ)

被引：5

作者：

舒增年 ^{[1
]}

杜荣军 ^{[2
]}

王旭 ^{[1
]}

熊春华 ^{[3
]}

李涛 ^{[4
]}

机构：

[1] Department of Chemistry, Lishui University

[2] Xi'an Power Resin Factory

[3] Department of Applied Chemistry, Biotechnology and Environmental Engineering, Zhejiang Gongshang University

[4] Xi’an Power Resin Factory

来源：

TransactionsofNonferrousMetalsSocietyofChina | 2007年 / 04期

关键词：

XSD-296; resin; chromium(Ⅵ); adsorption;

D O I：

暂无

中图分类号：

O647.3 [吸附];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption properties of XSD-296 for Cr(Ⅵ) were studied by using chemical analysis and infrared spectrometry. Experimental results show that XSD-296 resin has a good adsorption ability for Cr(Ⅵ) at pH=2.6 in the HAc-NaAc medium. The statically saturated adsorption capacity is 235 mg/g resin. The apparent activation energy of adsorption reaction, Ea, is 16.73 kJ/mol, and the thermodynamic parameters are △H=11.62 kJ/mol, △G298 K=-4.13 kJ/mol. The adsorption behavior of resin for Cr(Ⅵ) is in accordance with Freundlich adsorption isotherm. Cr( Ⅵ ) adsorbed on resin can be eluted by 5%NaCl-5%NaOH or 5%NH4Cl-5%NH3·H2O quantitatively. Infrared spectra and adsorption mechanism show that the functional group of resin coordinates with Cr(Ⅵ) to form co-ordination compound. The coordination molar ratio of the functional group of resin to Cr(Ⅵ) is 1:1.

引用

页码：869 / 873

页数：5

共 9 条

[1] Adsorption behavior and mechanism of amino methylene phosphonic acid resin for Ag(Ⅰ) [J].