Quantitative Detection of Photothermal and Photoelectrocatalytic Effects Induced by SPR from Au@Pt Nanoparticles

Hao Yang; Lan-Qi He; Yu-Wen Hu; Xihong Lu; Gao-Ren Li; Biju Liu; Bin Ren; Yexiang Tong; Ping-Ping Fang

doi:10.1002/anie.201505985

Quantitative Detection of Photothermal and Photoelectrocatalytic Effects Induced by SPR from Au@Pt Nanoparticles

Angew Chem Int Ed Engl. 2015 Sep 21;54(39):11462-6. doi: 10.1002/anie.201505985. Epub 2015 Aug 17.

Authors

Hao Yang¹, Lan-Qi He¹, Yu-Wen Hu¹, Xihong Lu¹, Gao-Ren Li¹, Biju Liu², Bin Ren³, Yexiang Tong⁴, Ping-Ping Fang⁵

Affiliations

¹ KLGHEI of Environment and Energy Chemistry, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China).
² State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China).
³ State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China). bren@xmu.edu.cn.
⁴ KLGHEI of Environment and Energy Chemistry, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China). fangpp3@mail.sysu.edu.cn.
⁵ KLGHEI of Environment and Energy Chemistry, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China). chedhx@mail.sysu.edu.cn.

PMID: 26278278
DOI: 10.1002/anie.201505985

Abstract

The surface plasmon resonance (SPR) induced photothermal and photoelectrocatalysis effects are crucial for catalytic reactions in many areas. However, it is still difficult to distinguish these two effects quantitatively. Here we used surface-enhanced Raman scattering (SERS) to detect the photothermal and photoelectrocatalytic effects induced by SPR from Au core Pt shell Nanoparticles (Au@Pt NPs), and calculated the quantitative contribution of the ratio of the photothermal and photoelectrocatalysis effects towards the catalytic activity. The photothermal effect on the nanoparticle surface after illumination is detected by SERS. The photoelectrocatalytic effect generated from SPR is proved by SERS with a probe molecule of p-aminothiophenol (PATP).

Keywords: heterogeneous catalysis; photoelectrocatalysis; photothermal; surface plasmon resonance; surface-enhanced raman scattering.