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Citation: WANG Wei-Cheng, LI Shuo, WEN Yi-Yun, NG Mao-Chu, ZHANG Lei, YAO Yan-Ling, CHEN Yao-Qiang. Synthesis and Characterization of TiO₂/YFeO₃ and Its Photocatalytic Oxidation of Gaseous Benzene[J]. Acta Physico-Chimica Sinica, ;2008, 24(10): 1761-1766. doi: 10.1016/S1872-1508(08)60072-8 shu

Synthesis and Characterization of TiO₂/YFeO₃ and Its Photocatalytic Oxidation of Gaseous Benzene

1.
Key Laboratory of Green Chemistry&Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China; School of Chemical and Biological Science and Engineering, Yantai University, Yantai 264005, Shandong Province, P. R. China

Received Date: 26 May 2008
Available Online: 10 September 2008

YFeO3 was prepared by coprecipitation method and citric acid method, and TiO2/YFeO3 heterosystem photocatalysts were synthesized by loading TiO2 sol on the surface of YFeO3 via sol-gel method. Their photocatalytic activities were evaluated by the decomposition of gaseous benzene under UV light illumination. The prepared photocatalysts were characterized by nitrogen adsorption-desorption, X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-Vis diffuse reflectance spectroscopy. Results revealed that the heterosystem photocatalysts prepared by coprecipitation method showed higher activity, and the maximumconversion of benzene could reach 44.7% within 180 min. The YFeO3 samples prepared fromcoprecipitation method and citric acid method were absolutely in orthorhombic phase. The deposited titania was dispersed on the surface of carrier and a certain interaction existed between TiO2 and YFeO3. The two heterosystemphotocatalysts had narrow band-gap energies.
- Photocatalysis,
- TiO2,
- YFeO3,
- Coprecipitation method,
- Citric acid method,
- Benzene
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沈阳化工大学材料科学与工程学院沈阳 110142

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Synthesis and Characterization of TiO2/YFeO3 and Its Photocatalytic Oxidation of Gaseous Benzene

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通讯作者: 陈斌, bchen63@163.com

Synthesis and Characterization of TiO₂/YFeO₃ and Its Photocatalytic Oxidation of Gaseous Benzene