| Bi2WO6的水热合成及其光催化性能研究 |
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| 引用本文： | 刘瑛,王为民,傅正义,王皓,王玉成,张金咏.Bi2WO6的水热合成及其光催化性能研究[J].无机材料学报,2011(11):1169-1174. |
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| 作者姓名： | 刘瑛 王为民 傅正义 王皓 王玉成 张金咏 |
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| 作者单位： | 武汉理工大学材料复合新技术国家重点实验室; |
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| 基金项目： | 国家自然科学基金(50821140308)~~ |
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| 摘 要： | 水热法合成了Bi2WO6粉体,并采用XRD、FESEM及UV-Vis分光光度计对样品进行表征,研究了不同合成条件对产物形貌和催化性能的影响.UV-Vis漫反射谱表明产物在紫外和可见光区域均有吸收.样品的光催化性能通过降解RhB溶液来评价.结果表明:180℃,pH=2下合成24h获得的Bi2WO6紫外光催化性能最好,反应速率常数为0.03688/min.还讨论了不同pH值对合成样品催化性能的影响.催化剂的稳定性实验通过180℃,pH=2下合成24h获得的Bi2WO6多次催化实验来评估,结果表明4次循环实验后,样品的催化性能未有明显地衰减.在可见光下照射150min,催化剂对染料的降解率达到38%.
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| 关 键 词： | Bi2WO6粉体 水热合成 光催化性能 罗丹明B |
Hydrothermal Synthesis and Photocatalytic Properties of Bi_2WO_6 |
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| LIU Ying,WANG Wei-Min,FU Zheng-Yi,WANG Hao,WANG Yu-Cheng,ZHANG Jin-Yong.Hydrothermal Synthesis and Photocatalytic Properties of Bi_2WO_6[J].Journal of Inorganic Materials,2011(11):1169-1174. |
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| Authors: | LIU Ying WANG Wei-Min FU Zheng-Yi WANG Hao WANG Yu-Cheng ZHANG Jin-Yong |
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| Affiliation: | LIU Ying,WANG Wei-Min,FU Zheng-Yi,WANG Hao,WANG Yu-Cheng,ZHANG Jin-Yong(State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | Series of bismuth tungstate(Bi2WO6) catalysts were synthesized through simple hydrothermal route and characterized by X-ray diffraction(XRD),field emission scanning electron microscope(FESEM) and UV-Vis diffuse reflectance spectroscope(DRS).The effects of synthesis conditions on the morphologies and properties of products were studied.UV-Vis diffuse reflectance spectra indicated that the samples had absorption in both UV and visible light areas.Their photocatalytic activities were determined by photodegrada... |
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| Keywords: | Bi2WO6 powders hydrothermal synthesis photocatalytic properties rhodamine B(RhB) |
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