Photonic TiO2 photoelectrodes for environmental protections: Can color be used as a quick selection indicator for photoelectrocatalytic performance?

JOURNAL OF HAZARDOUS MATERIALS

卷:398

Article

Liu, Yan¹  Lai, Min¹  Long, Lulu¹  Zhang, Yanzong¹  Luo, Ling¹  Shen, Fei¹  Zhang, Xiaohong¹  Zhang, Shirong¹  Deng, Shihuai¹  Chen, Xiaobo² 

[1] Sichuan Agr Univ, Coll Environm, 211 Huiming Rd, Chengdu 611130, Sichuan, Peoples R China

[2] Univ Missouri, Dept Chem, Kansas City, MO 64110 USA

关键词: Photonic TiO2 photoelectrodes;    Apparent feature;    Photoelectrocatalytic;    Color;    Quick selection indicator;   

DOI  :  10.1016/j.jhazmat.2020.122867

来源: Elsevier

【 摘 要 】

Colored photonic TiO2 photoelectrodes have been prepared by a simple anodizing-annealing method. Traditionally, the photoelectrocatalytic (PEC) properties of the film are obtained by measuring the actual de-composition of organic pollutants under ultraviolet or visible light, which may take tens of minutes or even hours. Here, through the combined analysis of the apparent features and PEC properties, we found that the structure would affect the color and optical performance, and the films with different colors showed different PEC performance. Interestingly, after repeated verifications, we got a rule that the PEC performance of the TiO2 films decreased in the order with typical color of yellow, blue-green, dark yellow, blue, yellow-grey, and purple. Therefore, we provide a new idea for the visualization screening of PEC performance for the film photoelec-trodes, that is, color can be used as a quick selection indicator for TiO2 films.

【 授权许可】

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