BiOI/g-C_(3)N_(4)/NH_(2)-MIL-53(Fe)三元异质结光催化剂的合成与性能研究  

Synthesis and Performance Research of BiOI/g-C_(3)N_(4)/NH_(2)-MIL-53(Fe)Ternary Heterojunction Photocatalyst

作　　者：何林 吴敏[1] HE Lin;WU Min(School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]东南大学化学化工学院,南京211189

出　　处：《化工时刊》2024年第3期15-22,共8页Chemical Industry Times

基　　金：江苏省创新平台项目(6907041203)。

摘　　要：半导体光催化技术是解决能源危机和环境污染的有效手段。作者采用一步溶剂热法制备了Bi OI/g-C_(3)N_(4)/NH_(2)-MIL-53(Fe)三元异质结催化剂。以X射线衍射、扫描电子显微镜等表征方法对样品进行分析,以双酚S为目标污染物考察了催化剂的光催化性能,以自由基捕获实验得出·OH、h^(+)和·O_(2)^(-)在降解过程中均发挥强氧化作用,并基于催化剂光芬顿性能研究以及半导体能带结构,提出其催化光芬顿反应的可能的机理。Semiconductor photocatalysis technology is an effective means to solve the energy crisis and environmental pollution.BiOI/g-C_(3)N_(4)/NH_(2)-MIL-53(Fe)ternary heterojunction catalyst was prepared by one-step solvothermal method.The samples were analyzed by X-ray diffraction,scanning electron microscopy and other characterization methods,and the photocatalytic performance of the catalyst was investigated with bisphenol S as the target pollutant.The free radical capture experiment showed that·OH,h^(+)and·O_(2)^(-)all played a strong oxidation role in the degradation process.Based on the study of the photofenton performance of the catalyst and the band structure of the semiconductor,the possible mechanism of the photofenton reaction was proposed.

关 键 词：Bi OI g-C_(3)N_(4) NH_(2)-MIL-53(Fe) 光芬顿法 

分 类 号：X703[环境科学与工程—环境工程]