School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
J Colloid Interface Sci. 2018 Feb 1;511:110-118. doi: 10.1016/j.jcis.2017.09.103. Epub 2017 Sep 28.
In this paper, plasmonic photoelectroncatalyst of gold/copper iodide (Au/CuI) was synthesized and fully characterized. Compared to traditional electrocatalytic procedure under dark condition, the photoelectrocatalytic (PEC) activities of Au/CuI towards ethanol oxidation and organic pollutant degradation were distinctly enhanced under visible light irradiation. The advantages of the PEC process were investigated by photocurrent responses, linear sweep voltammetry, chronoamperometric and chronopotentiometry curves, and electrochemical impedance spectroscopy spectra. Finally, the mechanism of plasmon enhanced PEC performance in ethanol oxidation and organic contaminant degradation under visible light irradiation was proposed. The current studies open a new possibility in the application of ethanol oxidation and organic contaminant degradation by using plasmonic photoelectrocatalysts under visible light irradiation.
本文合成并充分表征了金/碘化铜（Au/CuI）等离子体光电子催化剂。与传统的暗条件下电催化过程相比，Au/CuI 在可见光照射下对乙醇氧化和有机污染物降解的光电催化（PEC）活性明显增强。通过光电流响应、线性扫描伏安法、计时安培法和计时电位法曲线以及电化学阻抗谱对 PEC 过程的优点进行了研究。最后，提出了可见光照射下等离子体增强乙醇氧化和有机污染物降解的光电催化性能的机理。本研究为利用等离子体光电子催化剂在可见光照射下进行乙醇氧化和有机污染物降解的应用开辟了新的可能性。
