In situ FTIR investigation on the adsorption of nitrosamines in zeolites

被引：23
|
作者：
Yun, ZY [1 ]
Xu, Y [1 ]
Xu, JH [1 ]
Wu, ZY [1 ]
Wei, YU [1 ]
Zhou, ZP [1 ]
Zhu, JH [1 ]
机构：
[1] Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2004年 / 72卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
zeolite; in situ FTIR; nitrosamines; adsorption; NHMI; SBA-15;
D O I：
10.1016/j.micromeso.2004.04.012
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Adsorption of N-nitrosohexamethyleneimine (NHMI) on a series of zeolites with different pore sizes and surface acidity was studied by in situ infrared technique, combined with temperature programmed surface reaction (TPSR). The adsorption manner of bulky NHMI in zeolite KA and NaA with pore sizes smaller than the molecular diameter of adsorbate was explored; also the impact of adsorbent pore structure and temperature on the adsorption of the volatile nitrosamines was examined. In comparison, the ordered mesoporoussilica SBA-15 was employed to adsorb NHMI, and the acceleration of selective adsorption of nitrosamines by incorporating copper or zinc was checked and directly confirmed, which would be beneficial for expanding the application of mesoporous materials in environment protection and public health. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：127 / 135
页数：9
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