In-situ synthesis of Z-scheme CeO_(2)@WO_(3) heterojunction with aromatic rings as electron medium for efficient photocatalytic degradation of perfluorobutane sulfonate  

作　　者：Shihai Cao Haocheng Yang Cheng Cheng Jinheng Dai Shuaishuai Lu Yao Lu 

机构地区：[1]College of Environmental Engineering,Nanjing Institute of Technology,Nanjing,211167,China [2]Jiangsu Environmental Engineering Technology Co.,Ltd.,Nanjing,210019,China [3]Key Laboratory of Jjiangsu Province for Chemical Pollution Control and Resources Reuse,School of Environmental and Biological Engineering,Nanjing University of Science and Technology,Nanjing,210094,China [4]School of Environment and Safety Engineering,School of Emergency Management,Institute of Environment and Ecology,Jiangsu University,Zhenjiang 212013,China [5]Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment,Suzhou University of Science and Technology,Suzhou,215009,China

出　　处：《Journal of Rare Earths》2025年第3期470-479,I0002,共11页稀土学报(英文版)

基　　金：Project supported by the National Natural Science Foundation of China(52300206);the Natural Science Foundation of Jiangsu Province(BK20230705);Industry-University Research Cooperation Project of Jiangsu Province,China(BY20221227);Natural Science Foundation of the Jiangsu Higher Education Institutions of China(22KJB610014);the Talent-Recruiting Program of Nanjing Institute of Technology(YKJ202124)。

摘　　要：Photocatalytic technology has been proven to be a simple and effective method for degrading recalcitrant organic pollutants.In this study,a series of Z-scheme heterojunction nanocomposites composed of CeO_(2)and terephthalic acid-modified WO_(3) was prepared and further used as photocatalysts for perfluorobutane sulfonate(PFBS)degradation.In this design,terephthalic acid was used as an electron recombination center and heterojunction mediator,which effectively enhances the migration ability of electron-hole pairs and the physicochemical stability of the catalyst.In addition,in situ synthesis of CeO_(2)onto the WO_(3) surface by the coordinate bond between terephthalic acid and Ce ions can avoid CeO_(2)agglomeration.As a result,the CeO_(2)@WO_(3) photocatalyst exhibits excellent PFBS degradation ability(94%for CeO_(2)@WO_(3) vs.19%for CeO_(2)).After the fifth cyclic degradation experiment,the CeO_(2)@WO_(3) photocatalyst still maintains stable degradation efficiency.Furthermore,the reaction mechanism of the PFBS in CeO_(2)@WO_(3) photocatalytic process was analyzed by free radical trapping experiment and liquid chromatography tandem mass spectrometry(LC-MS)technique.This study provides new insights for constructing Z-scheme heterojunction and demonstrates that CeO_(2)@WO_(3) photocatalysts possess a promising prospect for degrading PFBS pollutants.

关 键 词：CeO_(2) WO_(3) Photocatalytic Z-Scheme heterojunction Perfluorobutane sulfonate(PFBS) Rare earths 

分 类 号：O643.3[理学—物理化学]