Synergistic Cu single-atoms and clusters on tubular carbon nitride for efficient photocatalytic performances

作     者：Yu-Xiao Feng Hui-Jun Yu Tian-Guang Lu Zi-Ye Zheng Shuang Tian Li Xiang Shan Zhao Shu-Guang Wang Zuo-Li He 

作者机构：Shandong Key Laboratory of Water Pollution Control and Resource ReuseSchool of Environmental Science and EngineeringShandong UniversityQingdao 266237China Weihai Research Institute of Industrial Technology of Shandong UniversityShandong UniversityWeihai 264209China School of Electrical EngineeringShandong UniversityJinan 250061China CEDARKnight Cancer InstituteSchool of MedicineOregon Health and Science UniversityPortland 97201USA 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2024年第43卷第11期

页      面：5891-5904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：financially supported by the National Natural Science Foundation of China(No.U22B20102) Shandong Provincial Natural Science Foundation(No.ZR2023QE218) the Young Taishan Scholars Program of Shandong Province(No.tsqn201909026) Taishan Scholars Project of Shandong Province(No.tstp20230604) the Future Young Scholars Program of Shandong University(No.61440089964189) the Key Laboratory of Organic Compound Pollution Control Engineering(MOE)Foundation(No.20190202) 

主　　题：Carbon nitride Photocatalysis Cu single-atom Sulfamethazine Degradation 

摘      要：Metal clusters or even single-atoms dispersed and anchored on the photocatalysts surface can enhance photocatalytic performances on organic pollutant ***,a simple photoreduction method was used to create atomically dispersed metal single-atoms/clusters(MSCs,M=Cu,Pd,Au and Ag)on P-modulated tubular carbon nitride(TCN).The obtained MSCs@TCN demonstrated excellent photocatalytic performances for the degradation of sulfamethazine(SMZ).In particular,the photocatalyst with 2 wt%Cu loading showed ultrahigh SMZ oxidation efficiency(k=0.06110 min^(-1)),almost three times that of TCN(k=0.02066 min^(-1)).It also shows excellent stability in the 5th-cycle *** improved photocatalytic activity of the CuSCs@TCN is ascribed to the synergistic promotion of photogenerated charge separation by Cu single-atoms/clusters as active sites,accelerated charge transfer from bulk TCN to Cu sites through Cu-N_(x)***,the active sites of Cu single-atoms/clusters could promote the production of·O_(2)^(-),which participates in organic oxidation with strong oxidizing holes(h^(+)).This strategy paves a new avenue for designing high-performance photocatalysts decorated with metal single-atoms and clusters.