Photocatalytic characteristics of immobilized SrBi2Nb2O9 film for degradation of organic pollutants

被引：27

作者：

Kim, Jin-Ho ^{[1
]}

Hwang, Kwang-Taek ^{[1
]}

Kim, Ung-Soo ^{[1
]}

Kang, Yong-Mook ^{[2
]}

机构：

[1] KICET, Icheon Branch, Icheon Si, Gyeonggi Do, South Korea

[2] Kongju Natl Univ, Div Adv Mat Engn, Cheonan 330717, Chungnam, South Korea

来源：

CERAMICS INTERNATIONAL | 2012年 / 38卷 / 05期

关键词：

Semiconducting oxide photocatalyst; SrBi2Nb2O9; Aerosol deposition; Photocatalytic activity; Rhodamine B; VISIBLE-LIGHT IRRADIATION; AEROSOL-DEPOSITION; THIN-FILMS; COMPOSITE MEMBRANE; RHODAMINE-B; DECOMPOSITION; WATER; DYE; DEETHYLATION; OXIDE;

D O I：

10.1016/j.ceramint.2012.01.042

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The use of semiconducting oxide photocatalyst in contaminant purification has recently drawn significant attention in both materials and environmental science. In this study, the compound SrBi2Nb2O9 with layered perovskite-type structure was synthesized by solid state reaction, and the network microstructure film was fabricated by the aerosol deposition method. The compound powder and aerosol-deposited film with SrBi2Nb2O9 were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Ultra violet-visible (UV-vis) spectrophotometry. The photocatalytic activity of the aerosol-deposited film with SrBi2Nb2O9 was evaluated by photo-induced destruction of Rhodamine B under the irradiation of UV and visible light. The aerosol-deposited film with SrBi2Nb2O9 exhibited higher photocatalytic activity than that of SrBi2Nb2O9 powders. This result is attributed not only to the small sized grain, but also to the existence of a network microstructure capable of supporting the enhanced loading of organic contaminants on the aerosol-deposited film. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：3901 / 3906

页数：6

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