The present study investigated the photocatalytic potential of zinc oxide-termite hill composite (ZnO-TH) for anionic dye (acid blue 113, AB113) degradation in aqueous solution. The composite photocatalyst was prepared using the sol–gel method. The material properties were characterized using techniques such as gas sorption, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and titration for the determination of the surface charge. The photocatalytic conditions effect on AB113 dye degradation efficiency was examined at a fixed irradiation time of 60 min. It was identified that the optimum values of the initial dye concentration, aqueous solution pH and photocatalyst loading were 25 mg/L, 3.0 and 1.2 g/L, respectively. At these optimum conditions, the maximum decolorization efficiency was found to be 92.21%. AB113 dye was almost completely mineralized after 60 min of visible light irradiation in the presence of the ZnO-TH composite. The photocatalyst showed good stability after being reused for five times.

本研究研究了氧化锌-白蚁丘陵复合物（ZnO-TH）在水溶液中降解阴离子染料（酸性蓝113，AB113）的光催化潜力。使用溶胶-凝胶法制备了复合光催化剂。使用气体吸附，扫描电子显微镜（SEM），傅立叶变换红外（FTIR）光谱，X射线衍射（XRD）和滴定法测定表面电荷的技术来表征材料的性能。在60分钟的固定照射时间下，考察了光催化条件对AB113染料降解效率的影响。已确定初始染料浓度，水溶液pH和光催化剂负载量的最佳值分别为25mg / L，3.0和1.2g / L。在这些最佳条件下，发现最大脱色效率为92.21％。在ZnO-TH复合材料存在下，可见光照射60分钟后，AB113染料几乎完全矿化。重复使用五次后，光催化剂显示出良好的稳定性。