Efficient photocatalytic degradation of statin via optimization on ZnIn_(2)S_(4)/Bi_(2)WO_(6) Z-scheme heterostructure  

作　　者：Tingting Liu Libing Cao Mengge Yan Yushan Hu Tianlong Ren Zheng Wu 

机构地区：[1]School of Environmental and Chemical Engineering Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries Engineering Research Center of Biological Resources Development and Pollution Control Universities of Shaanxi Province Key Laboratory of Textile Dyeing Wastewater Treatment Universities of Shaanxi Province,Xi’an Polytechnic University No.19,Jin Hua Road,Xi’an,710048,P.R.China [2]Key Laboratory of Northwest Water Resource Environment and Ecology MOE,Xi’an University of Architecture and Technology No.13,Yan Ta Road,Xi’an,710055,P.R.China [3]Northwest Branch of Beijing CCI Architectural Design Co.,Ltd No.26,Gao Xin Road,Xi’an 710065,P.R.China [4]Xi’an Capital Water Company Limited No.368,Kun Ming Road,Xi’an 710086,P.R.China

出　　处：《Journal of Advanced Dielectrics》2024年第4期104-114,共11页先进电介质学报（英文）

基　　金：supported by China Postdoctoral Science Foundation(2023MD734204);the Scientific Research Program Funded by Shaanxi Provincial Education Department(Program No.23JK0458);the Young Talent Fund of the University Association for Science and Technology in Shaanxi,China(Program No.20210424);Research and Development Project fund of Beilin District in Xi’an(Program No.GX2208);the Northwest China Key Laboratory of Water Resources and Environment Ecology(2022SZY02);Doctoral Research Project fund of Xi’an Polytechnic University;the Key Research and Development Program of Shaanxi(Program No.2022ZDLSF06-05);Shaanxi Province High-level Talent Introduction Program(Youth Project);State Key Laboratory of Treatments and Recycling for Organic Effluents by Adsorption in Petroleum and Chemical Industry,Soochow University(SDHY2301).

摘　　要：Statins are widely used in the treatment of hyperlipidemia disease,which are refractory in the municipal sewage treatment plant.The photocatalytic degradation of statins by the Z-scheme heterostructured photocatalyst is confirmed,but the degradation mechanism of statins needs to be further revealed.In this study,the effects of photocatalyst dosage,solution pH and humic acid(HA)on the photocatalysis of fluvastatin by ZnIn_(2)S_(4)/Bi_(2)WO_(6) Z-scheme heterostructured photocatalyst(ZIS/BWO photocatalyst)were investigated and the degradation mechanism was proposed.Results showed that adsorption of fluvastatin was improved with the increase of photocatalyst dosage,but photoinduced desorption and light scattering resulted in the decrease of the removal of fluvastatin with high dosage.0.2 g/L of the ZIS/BWO photocatalyst was optimal dosage.65.21%of fluvastatin was removed at pH=9,because high concentration of OH^(-)was conducive to produce·OH.The change of pH,competition of photons and active sites,and trapping of reactive oxygen species(ROS)by carboxyl group of HA combined to inhibit the photocatalysis of fluvastatin in the presence of HA.The C–C,C=C and C–N bonds of fluvastatin were attacked by a variety of ROS to generate degradable intermediates that were easily mineralized to H_(2)O and CO_(2).

关 键 词：FLUVASTATIN photocatalytic technology Z-scheme heterostructured photocatalyst reaction condition degradation mechanism 

分 类 号：O64[理学—物理化学]