化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (10) : 183-186.

科学研究

α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂催化剂的制备及光催化降解罗丹明B的研究

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Preparation of α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂ and study on photocatalytic degradation for rhodamine B

Zou Jiying, Liu Hui, Quan Jiahui, Li Wanhai,Sun Dazhi ,Sun Caiyun ,Lv Yihan

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摘要

采用溶胶-凝胶法,结合程序升温水热技术将制备的α-Fe₂O₃粉末加入磷钨酸(H₃PW₁₂O₄₀)/TiO₂体系中,制备出α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂光催化剂,用WKL颗粒图像分析系统对催化剂颗粒进行分析,并用该催化剂光催化降解罗丹明B溶液。结果显示:α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂复合催化剂光催化降解罗丹明B的最佳条件为温度25℃、时间1h、光催化剂用量10mg、罗丹明B溶液50mL。在此条件下,罗丹明B的光催化降解率达到98.24%。

Abstract

First of all,α-Fe₂O₃ powder was prepared by hydrothermal method,afterward by means of sol-gel method,and combined with temperature programmed hydrothermal technology.The prepared α-Fe₂O₃ powders were added to H₃PW₁₂O₄₀/TiO₂ system.α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂ photocatalyst powders were prepared.The particle surface was analyzed using WKL particle image analysis system,after,photocatalytic degradation of rhodamine B solution.The results demonstrated that the optimum conditions for photocatalytic degradation of rhodamine B by composite powders were 25℃,1h,with the amount of photocatalyst was 10mg.The reaction volume was 50mL,and the degradation rate was 98.24%.

关键词

α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂ / 溶胶-凝胶法 / 光催化 / 罗丹明B

Key words

α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂ / sol-gel method / photocatalysis / rhodamine B

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α-Fe₂O₃/H₃PW₁₂O₄₀/TiO₂催化剂的制备及光催化降解罗丹明B的研究[J]. 化工新型材料, 2018, 46(10): 183-186 DOI:

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