摘要
先用各向异性的Au纳米星(AuNS)与TiO_(2)复合构筑金属-半导体异质核壳结构,再将硫杂杯[4]芳烃(STC[4]A)功能化于TiO_(2)/AuNS表面制得Au纳米星/TiO_(2)/杯芳烃(AuNS/TiO_(2)/STC[4]A)复合光催化材料,并通过紫外可见光谱(UV-Vis)、Fourier变换红外光谱(FT-IR)和扫描电子显微镜(SEM)等对材料进行表征,考察AuNS/TiO_(2)/STC[4]A对罗丹明B(RhB)的光催化降解活性.实验结果表明,AuNS/TiO_(2)/STC[4]A对RhB降解率可达99%,5次循环实验后,降解率仅降低1.8%.
Firstly,the metal-semiconductor heterogeneous core-shell structure was constructed by the combination of anisotropic gold nanostars(AuNS)and TiO_(2).Secondly,the sulfonatothiacalix[4]arene(STC[4]A)was functionalized on the surface of TiO_(2)/AuNS to prepare AuNS/TiO_(2)/calixarenes(AuNS/TiO_(2)/STC[4]A)composite photocatalytic materials.The materials were characterized by ultraviolet-visible spectrum(UV-Vis),Fourier transform infrared spectrum(FT-IR),scanning electron microscope(SEM),and the photocatalytic degradation activity of AuNS/TiO_(2)/STC[4]A for Rhodamin B(RhB)was investigated.The experimental results show that the degradation rate of Rhodamine B by AuNS/TiO_(2)/STC[4]A can reach 99%,after five cycles,the degradation rate only decreases by 1.8%.
作者
何晶
李慧
魏亚辉
孙丽娜
杨楠
HE Jing;LI Hui;WEI Yahui;SUN Lina;YANG Nan(Advanced Institute of Materials Science,School of Chemistry and Life Science,Changchun University of Technology,Changchun 130012,China)
出处
《吉林大学学报（理学版）》
CAS
北大核心
2021年第5期1282-1287,共6页
Journal of Jilin University:Science Edition
基金
国家自然科学基金青年科学基金(批准号:21703015).
关键词
金纳米星
二氧化钛
杯芳烃
光催化
罗丹明B
Au nanostars
titanium dioxide
calixarene
photocatalytic
Rhodamine B
作者简介
第一作者:何晶(1995-),女,汉族,硕士研究生,从事等离子体光催化材料的研究,E-mail:2640748802@qq.com;通信作者:李慧(1987-),女,汉族,博士,副教授,从事有机无机复合纳米材料的研究,E-mail:lihui247@ccut.edu.cn.
