Applications of pore-expanded mesoporous silica. 1. Removal of heavy metal cations and organic pollutants from wastewater

被引:314
作者
Sayari, A
Hamoudi, S
Yang, Y
机构
[1] Univ Ottawa, Dept Chem, CCRI, Ottawa, ON K1N 6N5, Canada
[2] Univ Laval, Dept Chem Engn, St Foy, PQ G1K 7P4, Canada
关键词
D O I
10.1021/cm048393e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Postsynthesis pore expansion of as-synthesized MCM-41 silica using N,N-dimethyldecylamine affords material A, with open pore structure and readily accessible amine groups. The selective removal of the occluded amine gives rise to B, a highly porous, hydrophobic material with large surface area and pore volume. Materials A and B were found to be fast, sensitive, high-capacity recyclable adsorbents for metallic cations and organic pollutants, respectively.
引用
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页码:212 / 216
页数:5
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