Excellent degradation performance of azo dye by metallic glass/titanium dioxide composite powders

The metallic glass/titanium dioxide powders (MG/TiO 2 ) with enhanced photocatalytic oxidation activity were synthesized, which exhibit a higher efficiency in decolorizing methylene blue solutions (MB). Compared with the pure TiO 2 and crystalline alloy/TiO 2 (CA/TiO 2 ) under the same circumstances...

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Bibliographic Details
Published in:Journal of sol-gel science and technology 2013-08, Vol.67 (2), p.362-367
Main Authors: Yang, Jian Fei, Bian, Xiu Fang, Yuan, Mei Ling, Bai, Yan Wen, Liu, Yang, Fan, Jun Peng, Lu, Xiao Qian, Song, Kai Kai
Format: Article
Language:English
Subjects:
Amorphous materials
Ceramics
Chemistry
Chemistry and Materials Science
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Composites
Crystal structure
Decoloring
Degradation
Exact sciences and technology
General and physical chemistry
Glass
Inorganic Chemistry
Light irradiation
Materials Science
Metallic glasses
Methylene blue
Nanotechnology
Natural Materials
Optical and Electronic Materials
Original Paper
Oxidation
Performance degradation
Photocatalysis
Photodegradation
Titanium
Titanium dioxide
Water purification
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Summary:The metallic glass/titanium dioxide powders (MG/TiO 2 ) with enhanced photocatalytic oxidation activity were synthesized, which exhibit a higher efficiency in decolorizing methylene blue solutions (MB). Compared with the pure TiO 2 and crystalline alloy/TiO 2 (CA/TiO 2 ) under the same circumstances, its degradation rate was 60 % and 30 % higher, respectively. Furthermore, compared with the CA/TiO 2 , the MG/TiO 2 photocatalytic rate was three times faster when decolorizing MB. Considering the excellent intrinsic high-performance photocatalytic degradation under visible light irradiation, these novel powders were proven to have potential applications in water purification industry.
ISSN:0928-0707
1573-4846
DOI:10.1007/s10971-013-3089-3