pH-dependent plasmonic catalysis of 4-nitrobenzenethiol in aqueous environment

Jingang Wang; Yong Dong; Yuanzuo Li; Zhenglong Zhang; Fengcai Ma

doi:10.1016/j.saa.2015.09.033

pH-dependent plasmonic catalysis of 4-nitrobenzenethiol in aqueous environment

Spectrochim Acta A Mol Biomol Spectrosc. 2016 Jan 15:153:542-5. doi: 10.1016/j.saa.2015.09.033. Epub 2015 Sep 30.

Authors

Jingang Wang¹, Yong Dong², Yuanzuo Li³, Zhenglong Zhang⁴, Fengcai Ma⁵

Affiliations

¹ Department of chemistry and Physics, Liaoning University, Shenyang 110036, PR China; Department of Physics, Shenyang Aerospace University, 110036, PR China.
² Department of chemistry and Physics, Liaoning University, Shenyang 110036, PR China.
³ College of Science, Northeast Forestry University, Harbin 150040, PR China.
⁴ Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany. Electronic address: Zhenglong.Zhang@ipht-jena.de.
⁵ Department of chemistry and Physics, Liaoning University, Shenyang 110036, PR China. Electronic address: mafengcai@lnu.edu.cn.

PMID: 26433340
DOI: 10.1016/j.saa.2015.09.033

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.

Keywords: 4-NBT; Aqueous environment; Plasmon-driven chemical reaction; pH-Dependent.

Publication types

Research Support, Non-U.S. Gov't