Hydrothermal Synthesis and Photocatalytic Properties of Bi&lt;SUB&gt;2&lt;/SUB&gt;WO&lt;SUB&gt;6&lt;/SUB&gt;

Ying Liu; Weimin Wang; Zhengyi Fu; Hao Wang; Yucheng Wang; Jinyong Zhang

doi:10.3724/sp.j.1077.2011.01169

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Hydrothermal Synthesis and Photocatalytic Properties of Bi<SUB>2</SUB>WO<SUB>6</SUB>

Ying Liu Weimin Wang Zhengyi Fu Hao Wang Yucheng Wang Jinyong Zhang

Year: 2011 Journal: Journal of Inorganic Materials Vol: 26 (11)Pages: 1169-1174 Publisher: Science Press

DOI: 10.3724/sp.j.1077.2011.01169

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Abstract

水热法合成了Bi 2 WO 6 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Bi 2 WO 6 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Bi 2 WO 6 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%.

Keywords:

Materials science Photocatalysis Hydrothermal circulation Hydrothermal synthesis Chemical engineering Nuclear chemistry Nanotechnology Catalysis Chemistry Organic chemistry

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Advanced Photocatalysis Techniques

Physical Sciences → Energy → Renewable Energy, Sustainability and the Environment

Gas Sensing Nanomaterials and Sensors

Physical Sciences → Engineering → Electrical and Electronic Engineering

Catalytic Processes in Materials Science

Physical Sciences → Materials Science → Materials Chemistry

Hydrothermal Synthesis and Photocatalytic Properties of Bi<SUB>2</SUB>WO<SUB>6</SUB>

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