磁性g-C3N4/CoFe2O4光催化剂的制备及其性能研究

被引:0
|
作者
罗杰
常薇
张立
雷超
李云锋
刘斌
机构
[1] 西安工程大学环境与化学工程学院
关键词
光催化; 磁性; g-C3N4/CoFe2O4; 有机污染物;
D O I
10.13353/j.issn.1004.9533.20210863
中图分类号
X703 [废水的处理与利用]; O643.36 [催化剂]; O644.1 [光化学];
学科分类号
摘要
采用超声低温煅烧法制备了一种可回收的磁性复合光催化材料g-C3N4/CoFe2O4,并通过X射线衍射(XRD)、扫描电镜(SEM)、傅里叶变换红外光谱(FT-IR)和紫外-可见漫反射光谱(UV-vis)等对样品进行了表征。以罗丹明B(RhB)为代表性污染物,探究了g-C3N4/CoFe2O4的光催化性能。结果表明:g-C3N4与CoFe2O4复合质量比为3∶1时g-C3N4/CoFe2O4表现出最佳的光催化活性,重复使用5次后对RhB降解率仍能达到92%,表现出良好的使用稳定性。在外部磁场的作用下,可将其进行有效的分离回收。光催化降解机理研究表明,·OH和·O-2是光催化降解RhB的主要活性物种。
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页码:1 / 7
页数:7
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