Surface modification of natural zeolite by chitosan and its use for nitrate removal in cold regions

被引：65

作者：

Arora, Meenakshi ^{[1
]}

Eddy, Natalia K. ^{[1
]}

Mumford, Kathryn A. ^{[1
]}

Baba, Yoshinari ^{[2
]}

Perera, Jilska M. ^{[1
]}

Stevens, Geoff W. ^{[1
]}

机构：

[1] Univ Melbourne, Particulate Fluids Proc Ctr, Melbourne, Vic 3010, Australia

[2] Miyazaki Univ, Fac Engn, Dept Appl Chem, Miyazaki 8892192, Japan

来源：

COLD REGIONS SCIENCE AND TECHNOLOGY | 2010年 / 62卷 / 2-3期

基金：

澳大利亚研究理事会;

关键词：

Zeolite; Nitrate; Adsorption; Remediation; ANION-EXCHANGERS; ION-EXCHANGE; ADSORPTION; MEMBRANES; SORBENTS;

D O I：

10.1016/j.coldregions.2010.03.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Surface modifications of natural zeolite were performed by coating it with a chitosan layer. The chitosan coated zeolite (Ch-Z) was protonated with either sulfuric or hydrochloric acid and tested for its suitability to capture nitrate from water at 20 and 4 degrees C. The surface characterization of the Ch-Z was done by SEM, FTIR, TGA and nitrogen adsorption tests. The results of these tests showed evidence of chitosan coating onto zeolite particles. Ch-Z has comparable capacity to other weak anion exchangers with a nitrate ion exchange capacity 0.74 mmol NO3 g(-1) (protonated with HCl). (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：92 / 97

页数：6

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