title: pH-dependent plasmonic catalysis of 4-nitrobenzenethiol in aqueous environment.
abstract: Plasmon-driven chemical reaction of 4-nitrobenzenethiol (4-NBT) dimerizing to p,p'-dimercaptoazobenzene (DMAB) has been successfully monitored under different pH solutions. The experimental results indicated that the chemical reactions were dependent on the pH values, and they proceeded more completely under acidic conditions than those under neutral and alkaline conditions. Furthermore, the rate of the chemical reactions was effectively controlled by exposure time and incident laser power. The stable pH dependence demonstrated the plasmon-driven chemical reactions of 4-NBT to DMAB are sensitive to the surrounding environment, and have wider applications.
authors.affiliation: Department of chemistry and Physics, Liaoning University, Shenyang 110036, PR China; Department of Physics, Shenyang Aerospace University, 110036, PR China.
authors.forename: Jingang
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of chemistry and Physics, Liaoning University, Shenyang 110036, PR China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Dong
authors.affiliation: College of Science, Northeast Forestry University, Harbin 150040, PR China.
authors.forename: Yuanzuo
authors.initials: Y
authors.lastname: Li
authors.affiliation: Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany. Electronic address: Zhenglong.Zhang@ipht-jena.de.
authors.forename: Zhenglong
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of chemistry and Physics, Liaoning University, Shenyang 110036, PR China. Electronic address: mafengcai@lnu.edu.cn.
authors.forename: Fengcai
authors.initials: F
authors.lastname: Ma
keywords: 4-NBT; Aqueous environment; Plasmon-driven chemical reaction; pH-Dependent