Removal of arsenic from ammoniacal etching waste liquor by 3-(2-aminoethylamino) propyltrimethoxysilane functionalized silica gel sorbent

被引：9

作者：

Fan, Hong-Tao ^{[1
]}

Li, Jing ^{[1
]}

Guo, Meng-Meng ^{[1
]}

Fan, Xue-Lei ^{[1
]}

Zhang, Dong-Sheng ^{[1
]}

Su, Zi-Jie ^{[1
]}

Wang, Juan ^{[1
]}

机构：

[1] Shenyang Univ Chem Technol, Coll Appl Chem, Shenyang 110142, Peoples R China

来源：

DESALINATION AND WATER TREATMENT | 2012年 / 50卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

Removal; Arsenic; 3-(2-Aminoethylamino)propyltrimethoxysilane; Silica gel; Etching waste liquor; ACTIVATED CARBONS; ADSORPTION; OXIDATION; COPPER; RECOVERY; AS(III); SCALE; WATER;

D O I：

10.1080/19443994.2012.708535

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

3-(2-Aminoethylamino) propyltrimethoxysilane (AAPTS) functionalized silica gel (AAPTS/SiO2) was synthesized by a sol-gel process and was used for the arsenic removal from ammoniacal etching waste liquor which was oxidized by H2O2. The AAPTS/SiO2 sorbent reached absorption saturation at 20 min and had a substantial binding capacity in the range of pH 4.7-10.2. The maximum static adsorption capacity of AAPTS/SiO2 sorbent for arsenic was 16.1mg g(-1). Equilibrium data fitted perfectly with Langmuir isotherm model compared to Freundlich isotherm model. The removal rate of arsenic by AAPTS/SiO2 sorbent was 95.4% at the optimal conditions from ammoniacal etching waste liquor. Results showed that AAPTS/SiO2 sorbent could be used for the arsenic removal from ammoniacal etching waste liquor.

引用

页码：51 / 58

页数：8

共 25 条

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