title: Light-driven transformation of ZnS-cyclohexylamine nanocomposite into zinc hydroxysulfate: a photochemical route to inorganic nanosheets.
abstract: ZnS-CHA (CHA = cyclohexylamine) nanocomposite, a unique inorganic-organic hybrid semiconductor, has been prepared from a mild solvothermal reaction system. This material contains 2 nm-sized ZnS nanoparticles, and is photoactive toward UV light (≤300 nm). Under UV-irradiation, the ZnS-CHA nanocomposite is transformed to crystalline zinc hydroxysulfate nanosheets. The driving force of the light-driven transformation reaction is the photogeneration of charges (electrons and holes) in the ZnS nanoparticles, and these photogenerated charges interact with the CHA molecules and the inorganic S(2-) species, leading to decomposition of the organic component and self-oxidation of the inorganic ZnS nanoparticles to form zinc hydroxysulfate. Through simple thermal treatment, the as-formed zinc hydroxysulfate nanosheets are converted to ultrathin ZnO nanosheets with a porous feature, which exhibit high sensitivity and fast response and recovery for ethanol detection when used as an electrical sensing material.
authors.affiliation: School of Chemistry and Chemical Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, P.R. China.
authors.forename: Xiao-Xin
authors.initials: XX
authors.lastname: Zou
authors.forename: Guo-Dong
authors.initials: GD
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Zhao
authors.forename: Pei-Pei
authors.initials: PP
authors.lastname: Wang
authors.forename: Yu-Ning
authors.initials: YN
authors.lastname: Wang
authors.forename: Li-Jing
authors.initials: LJ
authors.lastname: Zhou
authors.forename: Juan
authors.initials: J
authors.lastname: Su
authors.forename: Lu
authors.initials: L
authors.lastname: Li
authors.forename: Jie-Sheng
authors.initials: JS
authors.lastname: Chen