金纳米星/TiO2/杯芳烃复合光催化材料的制备及可见光催化降解罗丹明B

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（STC4]A）功能化于TiO₂/AuNS表面制得Au纳米星/TiO₂/杯芳烃（AuNS/TiO₂/ STC4]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/STC4]A对罗丹明B（RhB）的光催化降解活性.  实验结果表明，AuNS/TiO₂/STC4]A对RhB降解率可达99%，5次循环实验后，降解率仅降低1.8%. 

Preparation,Characterization and Visible Light Photocatalytic Degradation Rhodamine B of Au Nanostar/TiO2/Calixarene

Firstly,  the  metal-semiconductor heterogeneous core-shell  structure was constructed by the combination of anisotropic gold nanostars (AuNS)  and TiO₂. Secondly, the sulfonatothiacalix4]arene (STC4]A) was functionalized on the surface of TiO₂/AuNS to prepare AuNS/TiO₂/calixarenes (AuNS/TiO₂/STC4]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/STC4]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%.