Micelle swelling agent derived cavities for increasing hydrophobic organic compound removal efficiency by mesoporous micelle@silica hybrid materials

被引:16
作者
Shi, Yifeng [1 ]
Li, Bin [1 ]
Wang, Peng [2 ]
Dua, Rubal [2 ]
Zhao, Dongyuan [3 ]
机构
[1] Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Zhejiang, Peoples R China
[2] King Abdullah Univ Sci & Technol KAUST, Water Desalinat & Reuse Ctr, Chem & Life Sci & Engn Div, Thuwal 239556900, Saudi Arabia
[3] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
关键词
Mesoporous; Hybrid material; HOCs removal; Water treatment; CATIONIC SURFACTANT; NATURAL SEDIMENTS; WATER; SORPTION; PESTICIDES; SIZE; CONTAMINANTS; EQUILIBRIA; SYSTEM;
D O I
10.1016/j.micromeso.2012.02.002
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Mesoporous micelle@silica hybrid materials with 2D hexagonal mesostructures were synthesized as reusable sorbents for hydrophobic organic compounds (HOCs) removal by a facile one-step aqueous solution synthesis using 3-(trimethoxysily)propyl-octadecyldimethyl-ammonium chloride (TPODAC) as a structure directing agent. The mesopores were generated by adding micelle swelling agent, 1,3,5-trimethyl benzene, during the synthesis and removing it afterward, which was demonstrated to greatly increase the HOC removal efficiency. In this material, TPODAC surfactant is directly anchored on the pore surface of mesoporous silica via -Si-O-Si- covalent bond after the synthesis due to its reactive -Si-(OCH3)(3) head group, and thus makes the synthesized materials can be easily regenerated for reuse. The obtained materials show great potential in water treatment as pollutants sorbents. (C) 2012 Elsevier Inc. All rights reserved.
引用
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页码:252 / 257
页数:6
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