| 超声辐照制备SrFeO3降解苯酚光催化性能研究 |
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| 引用本文： | 贾立山,李定,方维平,吴树新,孙道华,李清彪.超声辐照制备SrFeO3降解苯酚光催化性能研究[J].影像科学与光化学,2006,24(1):50-54. |
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| 作者姓名： | 贾立山 李定 方维平 吴树新 孙道华 李清彪 |
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| 作者单位： | 1. 厦门大学, 化学化工学院, 化学工程与生物工程系, 福建, 厦门, 361005;2. 厦门大学, 化学化工学院, 化学系, 福建, 厦门, 361005;3. 唐山师范学院, 新型催化技术研究所, 河北, 唐山, 063000 |
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| 摘 要： | 采用超声辐照柠檬酸络合法制备了复合氧化物SrFeO3,以苯酚为光催化探针分子,以450 W高压汞灯为光源(主波长>410 nm),研究了SrFeO3光催化性能.研究表明,经过超声辐照制备的SrFeO3光催化活性提高一倍以上. XRD、TEM、DRS表征结果表明,超声辐照制备的SrFeO3粒径均匀、分散性好、粒径较小,光吸收红移显著.探讨了超声提高催化性能的机理.
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| 关 键 词： | 超声辐照 光催化 复合氧化物 SrFeO3 |
| 收稿时间： | 2005-07-18 |
Study of Photocatalytic Performance of SrFeO3 by Ultrasonic Radiation |
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| JIA Li-shan,LI Ding,FANG Wei-ping,WU Shu-xin,SUN Dao-hua,LI Qing-biao.Study of Photocatalytic Performance of SrFeO3 by Ultrasonic Radiation[J].Imaging Science and Photochemistry,2006,24(1):50-54. |
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| Authors: | JIA Li-shan LI Ding FANG Wei-ping WU Shu-xin SUN Dao-hua LI Qing-biao |
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| Institution: | 1. Department of Chemical Engineering and Biologic Engineering, School of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P.R. China;2. Department of Chemistry, School of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P.R. China;3. Institute of Advanced Catalysis and Technology, Tang Shan Teachers College, Tangshan 063000, Hebei, P.R.China |
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| Abstract: | Nanostructured SrFeO3 was prepared by citrate method under ultrasonic radiation. The photocatalytic activity was investigated with phenol as photocatalytic degradation model reactant. The catalyst was characterized by X-ray diffraction(XRD) ,TEM,UV-Vis Diffuse Reflectance Spec-troscopy(DRS). The results indicated that the structural and photocatalytic properties of SrFeO3 greatly improved by ultrasonic radiation. When compared to SrFeO3 prepared by ordinary route, the SrFeO3 by ultrasonic radiation exhibited smaller particle size, red-shifted band edge of UV-Vis adsorption spectra. |
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| Keywords: | SrFeO3 |
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