物理化学学报2024，Vol.40Issue(10)：43-47,5.DOI:10.3866/PKU.WHXB202310013
一种新型等离子体共振效应调控的Ag/Ag3PO4/C3N5S型异质结光催化材料高效降解左氧氟沙星抗生素
Integration of Plasmonic Effect and S-Scheme Heterojunction into Ag/Ag3PO4/C3N5 Photocatalyst for Boosted Photocatalytic Levofloxacin Degradation
摘要
Abstract
The escalating presence of pharmaceutical antibiotics in natural water poses an overwhelming threat to the sustainable development of society.Photocatalysis technology stands out as a promising and cutting-edge environmental purification alternative.C3N5,identified as a distinctive nonprecious nonmetal photocatalyst,holds potential for environmental protection.However,challenges persist originating from the sluggish photoreaction kinetics and severe photo-carrier reunion.Currently,the design of a special S-scheme photosystem proves to be a reliable strategy for obtaining outstanding photocatalysts.In this context,a plasmonic S-scheme photosystem involving Ag/Ag3PO4/C3N5 was developed through a feasible route.The compactly connected 0D/0D/2D Ag/Ag3PO4/C3N5 heterostructure,benefitting from the synergy between the plasmonic effect and the S-scheme junction,facilitates the efficient utilization of appreciably reinforced sunlight absorption,effective photo-carrier disassociation,and notable photoredox capacity.Consequently,this system generates·OH and·O2-effectively.Ag/Ag3PO4/C3N5 demonstrates a superb photocatalytic levofloxacin eradication rate of 0.0362 min-1,marking a substantial advancement of 24.8,1.1,and 0.7 folds compared to C3N5,Ag3PO4,and Ag3PO4/C3N5,respectively.Impressively,Ag/Ag3PO4/C3N5 delivers remarkable anti-interference performance and reusability.This achievement signifies a significant step toward developing potent C3N5-involved photosystems for environmental purification.关键词
离子体共振效应/C3N5/S型异质结/协同效应/抗生素去除/内建电场Key words
Plasmonic effect/C3N5/S-scheme heterojunction/Synergistic effect/Antibiotic removal/Internal electric field分类
化学引用本文复制引用
董珂欣,申楚琦,阎如玉,刘艳萍,庄春强,李世杰..一种新型等离子体共振效应调控的Ag/Ag3PO4/C3N5S型异质结光催化材料高效降解左氧氟沙星抗生素[J].物理化学学报,2024,40(10):43-47,5.基金项目
This work was supported by the National Natural Science Foundation of China(U1809214),Natural Science Foundation of Zhejiang Province of China(LY20E080014,LTGN23E080001),and Science and Technology Project of Zhoushan of China(2022C41011).国家自然科学基金(U1809214),浙江省自然科学基金(LY20E080014,LTGN23E080001),舟山科技项目(2022C41011)资助 （U1809214）
