山西大学学报（自然科学版）2025，Vol.48Issue(6)：1196-1206,11.DOI:10.13451/j.sxu.ns.2024143
Nb2O5/Nb2C肖特基结的制备及全光谱催化降解性能研究
Preparation of Nb2O5/Nb2C Schottky Junction and the Full-spectrum Driven Degradation Performance
摘要
Abstract
Nb2O5/Nb2C Schottky junction was prepared using Nb2AlC as raw material by HF etching at room temperature combined with in-situ hydrothermal reaction.The full-spectrum absorption of Nb2O5/Nb2C was significantly enhanced due to the synergistic surface plasmon resonance effect between non-metallic plasma of Nb2C and oxygen vacancies in Nb2O5.Additionally,the existence of the Schottky barrier and the establishment of an internal electric field inhibit the recombination of photogenerated carriers,encom-passing both hot electrons and hot holes.Hence,Nb2O5/Nb2C exhibited the enhanced full-spectrum catalytic degradation perfor-mance for antibiotics.The degradation rate of Nb2O5/Nb2C towards tetracycline hydrochloride(TC)under simulated sunlight irradia-tion was 0.020 3 min-1,which was 4.61,2.74 and 2.18 times higher than those of Nb2AlC,Nb2C and Nb2O5.Under near-infrared light irradiation,the degradation rate of TC by Nb2O5/Nb2C could reach 0.003 7 min-1,which was 4.11,2.31 and 4.62 times higher than those of Nb2AlC,Nb2C and Nb2O5.Meanwhile,Nb2O5/Nb2C possessed excellent cycling stability.关键词
Nb2O5/二维碳化铌/光催化/抗生素降解/增强机理Key words
Nb2O5/Nb2C MXene/photocatalysis/antibiotic degradation/enhancement mechanism分类
化学引用本文复制引用
辛德华,王敏,张苑群,朱文垚,石雅宁,李国栋..Nb2O5/Nb2C肖特基结的制备及全光谱催化降解性能研究[J].山西大学学报（自然科学版）,2025,48(6):1196-1206,11.基金项目
山西省基础研究计划项目(202303021222243) （202303021222243）
山西省高等学校科技创新计划项目(2023L306) （2023L306）
运城学院校级项目(YQ-2020010 （）
QZX-2023014 （）
YQ-2023028 （）
YY-202512) （）
