Acta Chimica Sinica ›› 2014, Vol. 72 ›› Issue (11): 1125-1138.DOI: 10.6023/A14080602 Previous Articles     Next Articles



赵刘斌a, 黄逸凡a, 吴德印a, 任斌a,b   

  1. a 厦门大学化学化工学院固体表面物理化学国家重点实验室 厦门 361005;
    b 厦门大学能源材料协同创新中心 厦门 361005
  • 投稿日期:2014-08-25 发布日期:2014-10-17
  • 通讯作者: 吴德印, 任斌;
  • 作者简介:赵刘斌,男,厦门大学化学化工学院,2014年获厦门大学博士学位,现为西南大学讲师,主要研究方向为表面增强拉曼光谱理论和金属纳米结构表面光电化学反应理论.黄逸凡,男,2013年获厦门大学博士学位,现为荷兰莱顿大学博士后.主要研究方向电化学表界面光谱.吴德印,男,厦门大学化学化工学院教授,博士生导师,主要研究方向为表面增强拉曼光谱理论、电荷转移和传输理论、分子光谱理论.任斌,男,厦门大学化学化工学院教授,博士生导师,主要研究方向为光谱电化学、电催化、电分析、表面等离激元光子学、纳米电化学、纳米电分析、纳米材料合成.

Surface-enhanced Raman Spectroscopy and Plasmon-Assisted Photocatalysis of p-Aminothiophenol

Zhao Liubina, Huang Yifana, Wu Deyina, Ren Bina,b   

  1. a State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005;
    b Innovation Center of Chemistry for Energetic Materials, Xiamen University, Xiamen 361005
  • Received:2014-08-25 Published:2014-10-17

p-Aminothiophenol (PATP) is one of the most important probe molecules in surface-enhanced Raman spectroscopy (SERS). Adsorbed PATP exhibits very unique and abnormally intense SERS signals. However, the understanding toward the abnormal SERS signals is still in debate. In this review, we overview our theoretical and experimental studies to understand the abnormal SERS of PATP. We first introduce the theoretical investigation on the SERS enhancement mechanism of PATP. The theoretical study shows that the abnormal SERS signals of PATP are not from PATP itself but arise from its surface catalytic coupling product p,p'-dimercaptoazobenzene (DMAB). The assumption is supported by carefully designed experiments of PATP and the SERS signal of the synthesized DMAB molecule. Then, we summarize the experimental factors that influence the photochemical conversion of PATP to DMAB on the surfaces of metal nanostructures. We then explore the reaction mechanisms for the surface catalytic coupling reaction of PATP in both experimental and theoretical aspects. Finally, we proposed the further direction of surface plasmon enhanced chemical reaction on the basis of our systematically studies of SERS and plasmon photocatalysis of PATP.

Key words: p-aminothiophenol (PATP), surface-enhanced Raman spectroscopy, surface plasmon resonance, photocatalysis, density functional theory