Preparation and characteristic of triolein-embedded composite sorbents for water purification

被引：8

作者：

Huo, JX ^{[1
]}

Liu, HJ ^{[1
]}

Qu, JH ^{[1
]}

Wang, ZJ ^{[1
]}

Ge, JT ^{[1
]}

Liu, HN ^{[1
]}

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2005年 / 44卷 / 01期

基金：

中国国家自然科学基金;

关键词：

triolein; cellulose acetate (CA); composite sorbent; persistent organic pollutants (POPs); dieldrin;

D O I：

10.1016/j.seppur.2004.12.001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The novel triolein-embedded composite sorbents for removing persistent organic pollutants (POPs) in water were developed. Comprehensive structural characteristics of the composite sorbents were characterized using scanning electron microscope (SEM), fourier transform infrared spectrum (FT-IR) and X-ray photoelectron spectrum (XPS). It is suggested that triolein/cellulose acetate (CA) viscous syrup can be deposited on the surface of silica gel granules, because the silica gel granules have the large enough aperture to make the polymer penetrate into. Triolein is also embedded into a hybrid membrane perfectly. Dieldrin is regarded as a representative compound of POPs. Sorption experiments in solutions with constant concentrations show that adsorption capacity increased with increased triolein content in composite adorbents. Dieldrin removal could reach 80% at 50 ng/l initial concentration, which is near the environmental level. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：37 / 43

页数：7

共 27 条

[1] Factorial design analysis for adsorption of dye on activated carbon beads incorporated with calcium alginate [J].