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Chemical Science International Journal

Chemical Science International Journal, 2456-706X,Vol.: 20, Issue.: 2

 

Original-research-article

 

Preparation, Microstructure and Performance of Activated FA / TiO2-WO3 Composite Photocatalyst

 

 

Mande Qiu1*, Yanlong Cui1 and Qingjiao Han1

1College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People’s Republic of China.

 

Abstracts

 

The goal of this article was to preparation Fly ash(FA)/TiO2-WO3 Composite Photocatalyst based activation and modify of FA  surface using simple chemical method. The FA carrier and catalysts were investigated through XRD, SEM/EDS and BET. The photocatalytic efficiency of composite photocatalyst was evaluated by degradation of methyl orange under UV irradiation. The results confirmed that the H2SO4 activation altered the surface structure and composition of FA, the specific surface area increased from 8.2 m2/g (Raw ash) to 15.5 m2/g (activation FA). The surface modification of FA was conducive to supporting photocatalysts powder by tetrabutyl titanate sol treating. The loading composite photocatalyst showed the higher photocatalytic degradation efficiency under UV irradiation. The decolorization efficiency can reach 97% when the TiO2-WO3 loading amount is wt5% in 30 min. The composite photocatalysts compared with raw FA, activitied FA and modified FA, The results revealed that the photocatalytic degradation play main role after adsorption equilibrium. Furthermore, the photocatalytic mechanism and carrier effect were preliminary discussed.

 

Keywords :

FA; TiO2-WO3; composite photocatalyst; microstructure; methyl orange (MO).

 

Full Article - PDF    Page 1-7    Article Metrics

 

DOI : 10.9734/CSJI/2017/35086

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