当前位置:
X-MOL 学术
›
Inorg. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Synthesis, Properties, and Visible Light Photocatalytic Activity of Nonstoichiometric Titanium Dioxide-Based Composites
Inorganic Materials ( IF 0.9 ) Pub Date : 2020-07-28 , DOI: 10.1134/s0020168520060023 M. L. Belikov , T. A. Sedneva , E. P. Lokshin
中文翻译:
非化学计量二氧化钛基复合材料的合成,性能和可见光光催化活性
更新日期:2020-07-28
Inorganic Materials ( IF 0.9 ) Pub Date : 2020-07-28 , DOI: 10.1134/s0020168520060023 M. L. Belikov , T. A. Sedneva , E. P. Lokshin
Abstract
We have synthesized oxide composites based on TiO2 modified with aliovalent cations, W6+, Co3+, Cu2+, and Fe3+, in the range 5–30 wt %. Its deviation from stoichiometry is increased by active generation of Ti3+ cations during vacuum calcination at temperatures from 500 to 800°C. The photocatalytic activity (PCA) of the composites for dye degradation reactions under illumination with visible light exceeds that of analogous samples calcined in air. The PCA of the synthesized materials is an intricate function of their composition and structure. The highest PCA, which considerably exceeds the PCA of TiO2 of similar origin and that of the commercially available Degussa P-25 TiO2, is offered by the optimal compositions of the W- and Cu-modified samples for ferroin and methylene blue degradation and the Co- and Fe-modified samples for aniline degradation.中文翻译:
非化学计量二氧化钛基复合材料的合成,性能和可见光光催化活性