化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (7) : 190-193.

科学研究

微波辅助法合成纳米CeO₂/ZnO光催化剂及其光催化性能研究

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作者信息 +

Microwave assisted synthesis of nano CeO₂/ZnO photocatalyst and its photocatalytic property

Chen Zijian^1,2, Wang Shiyu¹, Wu Xian³

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文章历史 +

Received		Published
2018-02-15		2019-07-20
Issue Date	Revised Date
2019-08-05	2018-02-15

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摘要

采用微波辅助共沉淀法制备了纳米CeO₂/ZnO光催化剂。采用X射线粉末衍射仪、透射电子显微镜、傅里叶变换红外光谱仪以及紫外-可见吸收光谱仪对催化剂样品进行结构表征。以罗丹明B(RhB)为目标降解物对催化剂样品进行光催化降解实验。结果表明:合成的纳米CeO₂/ZnO光催化剂由立方相的CeO₂及六方相ZnO组成,且CeO₂与ZnO较好地复合在一起;该催化剂在紫外区域吸收性能良好。光催化降解RhB实验表明,在质量浓度0.2g/L、pH=8条件下,催化剂光催化性能最佳。

Abstract

CeO₂/ZnO nanocomposite was synthesized by a microwave-assisted coprecipitation method.The nanocomposite was characterized by XRD,TEM,FT-IR and UV-Vis spectra.The photocatalytic degradation was carried out using rhodamine (RhB) as the target degradation product.The results showed that the material synthesized by this method was composed of a cubic phase of CeO₂ and a six-square phase ZnO,and CeO₂ was well combined with ZnO.The catalyst had good absorption in the ultraviolet region.The photocatalytic degradation experiment of RhB showed that the catalyst had a good photocatalytic performance,and its optimal concentration was 0.2g/L,and the optimum pH was 8.

关键词

纳米CeO₂/ZnO / 微波辅助法 / 光催化 / 罗丹明B

Key words

nanocomposite CeO₂/ZnO / microwave assisted synthesis / photocatalysis / RhB

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微波辅助法合成纳米CeO₂/ZnO光催化剂及其光催化性能研究[J]. 化工新型材料, 2019, 47(7): 190-193 DOI:

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