【摘要】 先用各向异性的Au纳米星（AuNS）与TiO₂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TiO₂/AuNS表面制得Au纳米星/TiO₂/杯芳烃（AuNS/TiO₂/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/TiO₂/STC[4]A对罗丹明B（RhB）的光催化降解活性.实验结果表明,AuNS/TiO₂/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%.更多还原

【Abstract】 Firstly, the metal-semiconductor heterogeneous core-shell structure was constructed by the combination of anisotropic gold nanostars（AuNS） and TiO₂. Secondly, the sulfonatothiacalix[4]arene（STC[4]A） was functionalized on the surface of TiO₂/AuNS to prepare AuNS/TiO₂/calixarenes（AuNS/TiO₂/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/TiO₂/STC[4]A for Rhodamin B（RhB） was investigated. The experimental results show that the degradation rate of Rhodamine B by AuNS/TiO₂/STC[4]A can reach 99%, after five cycles, the degradation rate only decreases by 1.8%.更多还原