Adsorption of nitrosamines in acidic solution by zeolites

被引:50
作者
Zhou, CF [1 ]
Zhu, JH [1 ]
机构
[1] Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
N-nitrosopyrrolidine; acidic solution; adsorption; zeolite; anti-cancer;
D O I
10.1016/j.chemosphere.2004.08.056
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Adsorption of N-nitrosopyrrolidine (NPYR) by zeolite NaZSM-5, Hbeta and NaZSM-11 in acidic solution with pH of 1 was investigated. The NPYR uptake process obeyed the first-rate Lagegren kinetic equation describing adsorption, and the equilibrium data were fitted to the Langmuir or Freundlich adsorption equation. Zeolite ZSM-5, Hbeta and NaZSM-11 possessed a higher adsorption capacity than amorphous silica or ordered mesoporous siliceous SBA-15, implying their potential application for adsorption of nitrosamines in gastric juice to anti-cancer. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:109 / 114
页数:6
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