Visible Light Photocatalytic Properties of Bismuth Ferrite Prepared By Sol-Gel Method

被引：3

作者：

Park, Byung-Geon ^{[1
]}

Chung, Kyong-Hwan ^{[2
]}

机构：

[1] Kwangju Womens Univ, Dept Food & Nutr, 40 Gwangjuyeodae Gil, Gwangju, South Korea

[2] Sunchon Natl Univ, Dept Environm Engn, 255 Jungang Ro, Suncheon Si, Jeollanam Do, South Korea

来源：

KOREAN CHEMICAL ENGINEERING RESEARCH | 2020年 / 58卷 / 03期

关键词：

Bismuth ferrite; Photocatalyst; Visible light; Formaldehyde decomposition; LED lamp; THIN-FILMS; WATER; DEGRADATION; DIOXIDE; HETEROSTRUCTURES; NANOPARTICLES; SPECTRA; ARRAYS; ENERGY; FE;

D O I：

10.9713/kcer.2020.58.3.486

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The method for preparing a perovskite-type bismuth ferrite (BFO) photocatalyst which reacts to visible LED light and the characteristics of visible light photocatalysis were investigated. BFO was prepared according to the sol-gel method. The prepared BFO consisted mainly of BiFeO3 structure and formed a nano-sized crystal including Bi24Fe2O39 structure. The BFO nano crystallines were identified from the UV-visible diffuse reflectance spectra to absorb UV and visible light up to about 600 nm. The bandgap of the BFO determined from the diffuse reflectance spectrum was about 2.2 eV. Formaldehyde was decomposed by the photoreaction of BFO photocatalysts with the visible light LED lamps with wavelengths of 585 nm and 613 nm. The narrow bandgap of BFO led to elicit BFO photocatalytic activity in visible LED light.

引用

页码：486 / 492

页数：7

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