高纯铁铝尖晶石制备及其光芬顿催化性能  

Preparation and Photo-Fenton Catalytic Properties of High-Purity Hercynite

作　　者：张佳钰 闫明伟 孙广超 李想 刘开琪[1,2] ZHANG Jiayu;YAN Mingwei;SUN Guangchao;LI Xiang;LIU Kaiqi(State Key Laboratory of Multi-phase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院过程工程研究所,多相复杂系统国家重点研究室,北京100190 [2]中国科学院大学,北京100086

出　　处：《硅酸盐学报》2022年第6期1669-1676,共8页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(22005309);多相复杂系统国家重点实验室自主研究课题(MPCS-2021-C-01);中科南京绿色制造产业创新研究院关键研究项目(E0010717)。

摘　　要：为进一步开发新型环境友好型光芬顿催化剂,基于反应烧结法制备了铁铝尖晶石,探究了铁铝尖晶石对罗丹明B染料的光芬顿催化性能和降解机理。结果表明:试样中物相组成为具有Fe^(2+)和Fe^(3+)复合价态的高纯铁铝尖晶石。通过调整pH值、催化剂质量浓度和H_(2)O_(2)剂量,铁铝尖晶石催化罗丹明B呈现不同的降解效率。当工艺条件为pH=3.14、1.0 g/L FeAl_(2)O_(4)和2%H_(2)O_(2)时,降解效率达到90.71%,TOC去除率达76.46%。经过4次循环使用后,铁铝尖晶石仍然保持良好的稳定性。反应烧结法合成的铁铝尖晶石是一种具有潜在价值的光芬顿催化剂,在染料废水处理中具有应用前景。To develop novel environmental-friendly photo-Fenton catalysts,hercynite(FeAl_(2)O_(4))was prepared via reaction sintering.The catalytic performance in photo-Fenton and the degradation of hercynite for rhodamine B dye was investigated.The results show that the phase composition in the samples is a high-purity hercynite with Fe^(2+) and Fe^(3+) complex valence states.The optimal degradation efficiency and TOC removal efficiency are 90.71%and 76.46%,respectively at pH value of 3.14,FeAl_(2)O_(4) of 1.0 g/L and H_(2)O_(2) of 2%(in volume fraction).After four cycles,hercynite still maintains a good stability.The synthesized hercynite as an optical photo-Fenton catalyst can be recycled and reused for times,The synthesized hercynite which has a potential application prospect in dye wastewater treatment.

关 键 词：铁铝尖晶石 光芬顿催化 反应烧结 染料降解 

分 类 号：TQ175[化学工程—硅酸盐工业]