文献类型：期刊文献

英文题名：Superhydrophobicity construction with dye-sensitised TiO2 on fabric surface for both oil/water separation and water bulk contaminants purification

作者：Yu, Linfeng[1];Zhang, Shengmiao[1];Zhang, Meng[2];Chen, Jianding[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2017

卷号：425

起止页码：46

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20172803931873);WOS:【SCI-EXPANDED(收录号:WOS:000410609400006)】；

基金：This work was supported by the National Natural Scientific Foundation of China (51103042), Natural Science Foundation of Shanghai (16ZR1407800) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Oil/water separation; TiO2; Superhydrophobicity; Dye sensitization

摘要：For the promising material for both oil/water separation and water-soluble contaminants, the Dye@TiO2TEOS/VTEO hybrid modified polyester fabric is developed by a simple dip-coating process, which combines Dye-sensitised TiO2 with silicon contained superhydrophobic coating to guarantee the long-term stability of Dye-sensitised TiO2 system as well as material's sustainability. The modified fabric possesses selective oil/water seperation properties towards water and oil, besides, mechanical, acid and alkali durability shows this material's appropriate performance on oil/water separation. UV-Vis absorption spectrum reveals the Dye 4-(2H-imidazol-2-ylazo) benzoic acid could sensitize the semiconductor TiO2 for visible light catalytic organic pollutant degradation that is also confirmed by methylene blue degradation experiment. Density Functional calculation (DFT) witnesses that HOMO, HOMO-1 of Dye contributed by oxygen bonding to TiO2 can insert into TiO2 band gap and result in low energy electron excitation. The ability of oil/water separation and water-soluble contaminants purification provides the material opportunity to practical applications in environmental restoration and human life. (C) 2017 Elsevier B.V. All rights reserved.