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Published on: August 18, 2020
pH-dependent plasmonic catalysis of 4-nitrobenzenethiol in aqueous environment
Jingang Wang1, Yong Dong2, Yuanzuo Li3
1Department of chemistry and Physics, Liaoning University, Shenyang 110036, PR China; Department of Physics, Shenyang Aerospace University, 110036, PR China.
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.
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