Photocatalytic mechanism of tourmaline/BiVO4 composites with different ratios

被引：5

作者：

Qi, Shuyan ^{[1
]}

Zhao, Yadong ^{[1
]}

Ma, Ninglong ^{[1
]}

Xu, Huanyan ^{[1
]}

机构：

[1] Harbin Univ Sci & Technol, Dept Mat Sci & Engn, Harbin 150040, Heilongjiang, Peoples R China

来源：

INORGANIC AND NANO-METAL CHEMISTRY | 2020年 / 50卷 / 01期

关键词：

Tourmaline; methylene blue; photocatalytic; first-order kinetic; BIVO4; TIO2; DEGRADATION; STRATEGIES;

D O I：

10.1080/24701556.2019.1661465

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The effect of the proportion tourmaline (0%, 1%, 3%, 5%, 7%, 9%) on the photocatalytic properties of BiVO4 was studied. The results were characterized by XRD, SEM, TEM, PL spectroscopy and UV-vis DRS. The first-order kinetic model was employed to fit the experiment. The results showed that the addition 3% tourmaline improved the degradation rate of methylene blue by BiVO4 from 47.7% to 82.1%. The addition of tourmaline can reduce the electrons and holes recombination rate of BiVO4 to a certain extent, and greatly reduced the forbidden band width. resulting in more conducive to the photocatalytic reaction, thereby improving its photocatalytic efficiency.

引用

页码：28 / 34

页数：7

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