摘要
利用水热法分别合成了BiOBr、ZnFe_(2)O_(4)纳米晶体和BiOBr/ZnFe_(2)O_(4)磁性纳米复合材料.通过X射线衍射仪(XRD)和场发射扫描电子显微镜(SEM)分析了三种样品的结构和微观形态.分别以其为光催化剂,通过紫外-可见分光光度计(UV-3600)对有机污染物四环素(TC)的催化降解过程进行了记录,对三种样品的催化性能进行对比研究,并利用振动样品磁强计(VSM)对其磁学性能进行分析.结果表明,三种催化剂均能够有效降解有机污染物TC,BiOBr/ZnFe_(2)O_(4)磁性纳米复合材料的催化性能最强,并且可以进行磁回收,循环5次后仍保持优异的光催化性能.这项研究为光催化剂的性能优化提供了独特的思路,并在有机废水的处理方面具有广泛的应用前景.
BiOBr,ZnFe_(2)O_(4) nanocrystals and BiOBr/ZnFe_(2)O_(4) magnetic nanocomposites were synthesized using hydrothermal method,respectively.The structure and microstructure of the three prepared samples were analyzed by X-ray diffraction(XRD)and field emission scanning electron microscopy(SEM).BiOBr,ZnFe_(2)O_(4) nanocrystals and BiOBr/ZnFe_(2)O_(4) magnetic nanocomposites were chosen as photocatalysts,respectively.And the catalytic degradation process of organic pollutant tetracycline(TC)was recorded using a UV visible spectrophotometer(UV-3600)The catalytic performance of the three samples was comparatively investigated.Their magnetic properties were analyzed using a vibrating sample magnetometer(VSM).The results show that all three photocatalysts are able to effectively degrade organic pollutant TC,and the BiOBr/ZnFe_(2)O_(4) magnetic nanocomposites show the strongest catalytic performance and can be magnetically recycled.After five cycles,the excellent photocatalytic performance is still maintained.This study provides a unique approach for optimizing the performance of photocatalysts and has broad application prospects in the treatment of organic wastewater.
作者
刘洪波
吴钰
王静茹
丛源
梁源
崔思成
赵文诗
刘洋
LIU Hong-bo;WU Yu;WANG Jing-ru;CONG Yuan;LIANG Yuan;CUI Si-cheng;ZHAO Wen-shi;LIU Yang(Training Center of Innovation and Entrepreneurship Education,Jilin Normal University,Siping 136000,China;Key laboratory of Functional Materials Physics and Chemistry of Ministry of Education,Jilin Normal University,Changchun 130103,China)
出处
《吉林师范大学学报（自然科学版）》
2024年第1期28-32,共5页
Journal of Jilin Normal University:Natural Science Edition
基金
国家自然科学基金项目(21676115)
吉林省科技发展计划项目(20220203021SF)。
