高光催化活性ZnTiO3的合成与表征
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| Published in: | 中国有色金属学报：英文版 Vol. 25; no. 7; pp. 2272 - 2278 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | Get full text |
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| Bibliography: | Perovskite ZnTiO3 was prepared through a new method which contained a hydrothermal process for the preparation of titanate nanotubes and an ion-exchange process.The titanate nanotubes were inferred to be H2Ti3O7·3H2O.X-ray diffraction（XRD）result revealed the presence of cubic perovskite phase of ZnTiO3.The unique chain-like morphology of ZnTiO3 was observed by scanning electron microscopy（SEM） and transmission electron microscopy（TEM）.UV-Vis diffusive reflection spectra of ZnTiO3indicated that the absorbance obviously increased in the visible light region.The degradation rate of methyl orange solution（15 mg/L）reached 95.3%over ZnTiO3（0.3 g/L） after 20 min xenon light irradiation,which was higher than that using the commercial catalyst P25 under the same reaction condition.The degradation kinetic results follow the first-order equation and the rate constant is 0.1020. 43-1239/TG ZnTiO3; ion-exchange; photocatalysis; perovskite; synthesis; characterization Xin YAN,Cui-lian ZHAO,Yi-long ZHOU,Zhen-jun WU,Jian-min YUAN,Wen-sheng LI（ 1. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China; 2. College of Materials Science and Engineering, Hunan University, Changsha 410082, China） |
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| ISSN: | 1003-6326 |