Fe_(3)O_(4)/Bi-BiOBr复合纳米粉体处理罗丹明B 废水的光催化性能  

Photocatalytic Properties of Fe_(3)O_(4)/Bi-BiOBr Magnetic Nanoparticles

作　　者：郝文杰 甘英洁 王秋艺 宋爱君 鲁勖琳[1,2] 沈莉 党雅茹[1,2] 张志伟 吉国佳[1,2] 王月辉 HAO Wenjie;GAN Yingjie;WANG Qiuyi;SONG Aijun;LU Yinglin;SHEN Li;DANG Yaru;ZHANG Zhiwei;JI Guojia(College of Chemical Engineering,Hebei Normal University of Science&Technology,Qinhuangdao Hebei,066600,China;Institute of Applied Photochemistry,Hebei Normal University of Science&Technology,Qinhuangdao Hebei,066600,China)

机构地区：[1]河北科技师范学院化学工程学院,河北秦皇岛066600 [2]河北科技师范学院应用光化学研究所,河北秦皇岛066600

出　　处：《河北科技师范学院学报》2023年第1期55-62,共8页Journal of Hebei Normal University of Science & Technology

基　　金：河北省“三三三人才工程”资助项目(项目编号:A201901059,A202001023);河北省引进留学人员资助项目(项目编号:360-0803-YZN-SKYO);河北省重点研发计划项目(项目编号:20327311D);河北省重点研发计划项目(项目编号:22326625D)。

摘　　要：采用水热法制备了Fe_(3)O_(4)纳米粉体,并与Bi-BiOBr纳米材料进行了复合,成功的得到了Fe_(3)O_(4)/Bi-BiOBr复合纳米粉体。采用X射线衍射仪、场发射扫描电子显微镜、傅里叶红外光谱仪等仪器对样品进行了表征。结果表明,Fe_(3)O_(4)/Bi-BiOBr复合纳米材料被成功合成;在复合材料活化PMS去除罗丹明B(RhB)的降解试验中,考察了Fe和Bi的原子质量比(m(Fe):m(Bi))、催化剂质量浓度、PMS质量浓度等因素对光催化性能的影响。结果表明,光反应80 min后,降解率均达到95%以上;经过5次循环试验后,降解率仍能达到92.12%,具有良好的稳定性;催化过程中·OH为主要活性物种,其次为SO_(4)^(-)·和h^(+)。Compounded with Bi-BiOBr nano-material,Fe_(3)O_(4) nano-powder was prepared by hydrothermal method to form the Fe_(3)O_(4)/Bi-BiOBr nano-powder.The samples were characterized by X-ray diffractometer,field emission scanning electron microscope and Fourier infrared spectrometer.Fe_(3)O_(4)/Bi-BiOBr composite nanomaterials were successfully synthesized.In the degradation experiment of rhodamine B(RhB)by composite activated PMS,the atomic mass ratio of Fe to Bi(m(Fe)∶m(Bi)),catalyst mass concentration and PMS mass concentration on the photocatalytic performance were studied.The results showed that the degradation rate was more than 95%after 80 min of light reaction.After 5 cycles,the degradation rate can reach 92.12%with good stability.OH was the main active species,followed by SO_(4)^(-)·and h^(+).

关 键 词：Fe_(3)O_(4)/Bi-BiOBr PMS 光催化性能 罗丹明B 

分 类 号：X703[环境科学与工程—环境工程]