Plasmon-driven surface catalytic reaction of 4-ethynylaniline in a liquid environment

Yu Liu; Caiqing Ma; Yanqiu Yang; Yuanchun Zhao; Shiwei Wu; Jing Wang; Peng Song; Lixin Xia

doi:10.1039/c8ra03326a

Plasmon-driven surface catalytic reaction of 4-ethynylaniline in a liquid environment

RSC Adv. 2018 Jun 5;8(37):20499-20504. doi: 10.1039/c8ra03326a.

Authors

Yu Liu¹, Caiqing Ma¹, Yanqiu Yang¹, Yuanchun Zhao¹, Shiwei Wu^{1

2}, Jing Wang¹, Peng Song³, Lixin Xia¹

Affiliations

¹ College of Chemistry, Liaoning University Shenyang 110034 China lixinxia@lnu.edu.cn.
² Experimental Center of Shenyang Normal University Shenyang 110034 China.
³ College of Physical, Liaoning University Shenyang 110034 China songpeng@lnu.edu.cn.

Abstract

There is much evidence that surface plasmon photocatalytic reactions can occur on organic molecules on metal surfaces. In this paper, we focus on the photocatalytic reaction of 4-ethynylaniline (PEAN) on silver nanoparticles (Ag NPs) in a liquid environment by surface-enhanced Raman spectroscopy (SERS). Our experiments used SERS to characterize p,p'-diynylazobenzene produced from PEAN via a selective catalytic coupling reaction on Ag NPs. This discovery not only achieved the expected results but also broadens the known plasmon-driven surface catalytic reaction system. In our work, we also regulated the photocatalytic coupling reaction conditions of PEAN on Ag NPs by laser power-dependent and time-dependent SERS spectra.