BiOX(X=Cl、Br、I)/硅藻土光催化剂的制备与性能

硅酸盐通报 ›› 2018, Vol. 37 ›› Issue (1): 342-346.

BiOX(X=Cl、Br、I)/硅藻土光催化剂的制备与性能

董超南;林立;胡拥军;袁兴中;刘欢;易斌

湖南城市学院黑茶金花湖南省重点实验室,益阳,413000;湖南大学环境科学与工程学院,长沙,410082

出版日期:2018-01-15 发布日期:2021-01-18
基金资助:
黑茶金花湖南省重点实验室(2016TP1022)%湖南省普通高等学校中青年骨干教师国内访问学者项目湘教通([2017]247号)%湖南省教育厅科学研究项目(16C0297)%湖南城市学院大学生创新性实验项目(2016XS04)

Preparation and Performance of BiOX(X=Cl、Br、I)/Diatomite Photocatalyst

DONG Chao-nan;LIN Li;HU Yong-jun;YUAN Xing-zhong;LIU Huan;YI Bin

Online:2018-01-15 Published:2021-01-18

摘要/Abstract

摘要： 以五水硝酸铋、KX(X=Cl、Br、I)、硅藻土为原料,采用直接水解法制备了质量比不同的BiOX/硅藻土复合光催化剂,并进行了XRD和SEM表征分析,同时采用罗丹明B为目标降解物,以50 W LED紫光/蓝光灯为光源考察了制备光催化剂的可见光光催化性能.结果表明BiOX在硅藻土圆筛上成功负载且为片状分级结构,同等条件下,水解体系中1.0 g硅藻土负载BiOBr得到的复合光催化剂具有最优的光催化性能,在染料初始浓度为15 mg/L,催化剂用量为0.15 g,50 W LED蓝光灯照射50 min的条件下罗丹明B的降解率达到了86.7%.

关键词: BiOX/硅藻土;光催化;LED

Abstract: By the method of hydrolysis-deposition, BiOX/diatomite composite photocatalyst was synthesized using diatomite as supporter and Bi(NO3)3· 5H2O as precursor.The as-prepared samples were characterized by X-ray diffraction(XRD)and scanning electron microscopy(SEM).The photocatalytic property of these composites were investigated with Rhodamine B as a target pollutant under 50 W UV/BL LED light irridiation.The results indicate that the hierarchical BiOX is loaded on the surface of diatomite in schistose.At the same time, the obtained 1.0 g diatomite/BiOBr in hydrolysis system showes the highest photocatalytic performance.The photocatalytic degradation rate of Rhodamine B is up to 86.7% under the condition as follows:15 mg/L initial dye concentration, 0.15 g catalyst dosage,50 W blue LED light irradiation 50 min.

Key words: BiOX/diatomite;photocatalytic;LED

中图分类号:

TQ032

董超南;林立;胡拥军;袁兴中;刘欢;易斌. BiOX(X=Cl、Br、I)/硅藻土光催化剂的制备与性能[J]. 硅酸盐通报, 2018, 37(1): 342-346.

DONG Chao-nan;LIN Li;HU Yong-jun;YUAN Xing-zhong;LIU Huan;YI Bin. Preparation and Performance of BiOX(X=Cl、Br、I)/Diatomite Photocatalyst[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2018, 37(1): 342-346.

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