Research on the hydrothermal synthesis of nano tungsten oxide and its photocatalytic capacity

doi:10.11894/1005-829x.2014.35(9).033

Abstract

Abstract:

Taking tungstic acid as raw material,nano WO₃ has been prepared by hydrothermal method without using any additive. The structure of WO₃ is characterized by X-ray powder diffraction(XRD) and laser-Raman spectrum (Raman). By using UV-Vis spectrophotometer,its photocatalytic activity is studied,through experiments on nano WO₃ photocatalytic degradation of methylene blue(MB). The results show that the nano WO₃,which has used tungsten acid as raw material,and prepared at 110 ℃ and hydrothermal reaction for 7 h,has higher photocatalytic MB degradation activity,and its degradation rate can reach 81%.

Key words: hydrothermal method, nano WO₃, photocatalytic capacity, methylene blue

摘要：

以钨酸为原料,在不使用任何添加剂的条件下,采用水热法制备纳米WO₃。利用X射线粉末衍射与激光拉曼光谱对其物相结构进行表征,并通过紫外-可见分光光度计分析纳米WO₃ 光降解亚甲基蓝(MB)试验来研究其光催化活性。结果表明:以钨酸为原料,110 ℃水热反应7 h制备的纳米WO₃ 具有较高的光催化降解MB活性,其降解率可达81%。

关键词: 水热法, 纳米WO₃, 光催化性能, 亚甲基蓝

CLC Number:

X703.1

Zhang Xianghui. Research on the hydrothermal synthesis of nano tungsten oxide and its photocatalytic capacity[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(9): 33-35.

张相辉. 纳米WO₃的水热合成及其光催化性能研究[J]. 工业水处理, 2015, 35(9): 33-35.

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URL: https://www.iwt.cn/EN/10.11894/1005-829x.2014.35(9).033

https://www.iwt.cn/EN/Y2015/V35/I9/33

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