WO3/TiO2 composite with morphology change via hydrothermal template-free route as an efficient visible light photocatalyst
WO3/TiO2 composite with morphology change via hydrothermal template-free route as an efficient visible light photocatalyst
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通过水热无模板途径改变形貌的 WO3/TiO2 复合材料作为高效可见光光催化剂
DOI:
10.1016/j.cej.2010.11.065
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发表时间:
2011-02
影响因子:
15.1
通讯作者:
Sajjad Leghari, Shamaila Sajjad , Feng Chen, Jinl
中科院分区:
文献类型:
--
作者:
Sajjad Leghari, Shamaila Sajjad , Feng Chen, Jinl
The WO3/TiO2composites are prepared by a template-free synthetic approach based on hydrothermal reaction that leads to the formation of nanoparticles and microspheres with the change in concentrations of ammonium tungstate used as a dopant precursor. 5.0% composite generally exists in loose aggregate nanoparticles. These particles are aggregated to form the peculiar morphology of microspheres at 10.0% WO3/TiO2due to the in situ formation of ammonium sulfate in supersaturated state. 5.0% composite exhibits the best photoactivity as compared to pure TiO2, P-25 and pure WO3in the degradation of methyl orange and 2, 4-dichlorophenol in UV and visible light. 10.0% WO3/TiO2composite contains more dopant contents but exhibits comparable higher activity due to its specific morphology of spheres. Morphological variations of a photocatalyst also influence the photocatalytic efficiencies. Catalysts exhibit high activity owing to the combined effects of both the unique structural characteristics and the tungsten doping. The doped tungsten (W) inhibits the electron–hole recombination rate. The kinetics of the organics degradation is found to follow the Langmuir–Hinshelwood model.
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影响因子:
5.2
作者:
Shifu Chen;Lei Chen;Gao Shen;Geng‐yu Cao
通讯作者:
Shifu Chen;Lei Chen;Gao Shen;Geng‐yu Cao
DOI:
10.3866/pku.whxb20001108
发表时间:
2000-11
期刊:
--
影响因子:
--
作者:
Fangfang Li;Guo-Bang Gu;Xin-Jun Li;Hong-Fu Wan
通讯作者:
Fangfang Li;Guo-Bang Gu;Xin-Jun Li;Hong-Fu Wan
影响因子:
3.7
作者:
Yang, Xin-Li;Gao, Ruihua;Fan, Kangnian
通讯作者:
Fan, Kangnian
影响因子:
--
作者:
Xinchen Wang;Jimmy C. Yu;H. Yip;Ling Wu;P. Wong;S. Lai
通讯作者:
Xinchen Wang;Jimmy C. Yu;H. Yip;Ling Wu;P. Wong;S. Lai
影响因子:
8.6
作者:
Tatsuma, T;Saitoh, S;Fujishima, A
通讯作者:
Fujishima, A