文献类型：期刊文献

英文题名：Dual-Mode Controlled Self-Assembly of TiO2 Nanoparticles Through a Cucurbit[8]uril-Enhanced Radical Cation Dimerization Interaction

作者：Zhang, Qi[1,2];Qu, Da-Hui[1,2];Wang, Qiao-Chun[1,2];Tian, He[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2015

卷号：54

期号：52

起止页码：15789

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20154901649996);WOS:【SCI-EXPANDED(收录号:WOS:000368061800026)】；

基金：We thank the NSFC/China (21421004, 21272073, and 21190033) and the National Basic Research 973 Program for financial support. D.H.Q. thanks the Fok Ying Tong Education Foundation (121069), the Fundamental Research Funds for the Central Universities, and the Innovation Program of Shanghai Municipal Education Commission for financial support. We are grateful to the referees for their helpful and valuable comments.

语种：英文

外文关键词：methyl viologen; nanoparticles; self-assembly; stimuli-responsive materials; titanium

摘要：The realization of controllable multicomponent self-assembly through reversible supramolecular interactions is a challenging goal, and is an important strategy for the fabrication of switchable nanomaterials. Herein we show that the self-assembly of TiO2 nanoparticles (NP) functionalized with methyl viologen can be controlled both by light irradiation and chemical reduction through cucurbit[8]uril-enhanced radical cation dimerization interactions. Moreover, the controlled assembly and disassembly of this system are accompanied by switchable photocatalytic activity of the TiO2 NPs, which shows potential application as a novel smart and recyclable photocatalyst.