Defect Engineering in g‑C_(3)N_(4)Quantum‑Dot‑Modified TiO_(2)Nanofiber:Uncovering Novel Mechanisms for the Degradation of Tetracycline in Coexistence with Cu^(2+)

作     者：Jingzhe Zhang Xin Wang Kaixiang Shen Wenjing Lu Jun Wang Fuming Chen 

作者机构：Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum MaterialsGuangdong Engineering Technology Research Center of Efficient Green Energy and Environment Protection MaterialsSchool of Physics and Telecommunication EngineeringSouth China Normal UniversityGuangzhou 510006China School of Electrical Engineering and AutomationWuhan UniversityWuhan 430000China School of Electronics and Information EngineeringSouth China Normal UniversityFoshan 528225China 

出 版 物：《Advanced Fiber Materials》 (先进纤维材料（英文）)

年 卷 期：2023年第5卷第1期

页      面：168-182页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：support of this research by the National Natural Science Foundation of China(Grant nos.51909165,42177438) China Postdoctoral Science Foundation(2020TQ0109,2020M682753).Science and Technology Program of Guangzhou(2019050001) National Key Research and Development Program of China(2019YFE0198000) F.Chen acknowledges the Pearl River Talent Program(2019QN01L951) 

主　　题：Tetracycline Cu^(2+) C_(3)N_(4) TiO_(2) Defect 

摘      要：Herein,g-C_(3)N_(4)quantum-dot-modified TiO_(2)nanofibers were fabricated and used as an efficient photocatalyst for the investigation of the influence of Cu^(2+)and the interaction mechanism between Cu^(2+)and surface defects in tetracycline *** showed that the effect of Cu^(2+)switched from promoting to inhibiting the tetracycline degradation as the amount of Cu^(2+)accumulated on the catalyst surface *** introduction of surface defects can prevent the inhibiting effect of Cu^(2+),resulting in the more complete degradation of tetracycline in contrast to the non-defective *** calculations further revealed that the defects can be used to tune the conduction band of the composite,inducing the reduction reaction of Cu^(2+)and inhibiting the accumulation of Cu on the surface of ***,the Cu introduced to the catalyst surface provided new active sites,thereby promoting photocatalytic *** findings provide new insights into the design of advanced fiber materials for water purification in complex environments.