Zinc oxide - doped titanium dioxide/reduced graphene oxide (ZnO-TiO₂/rGO) nanocomposite was fabricated by the two-step hydrothermal method and used for adsorption and photodegradation of methylene blue in aqueous solution under UV irradiation. The characteristics of the catalyst material were confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, scanning electron microscope, transmission electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller specific surface area, thermal gravimetric analysis, and UV-vis spectroscopy. The results showed that the presence and uniform distribution of TiO₂ and ZnO nanoparticles on the rGO surface with an average diameter of 20 – 30 nm and high specific surface area (182.52 m²/g). The photodegradation was investigated via the pH media. The equilibrium adsorption at pH of 9 achieved the highest adsorption efficiency after 60 min (43.68 %) and 60 min photodegradation (99.84 %). According to the results, the photodegradation using ZnO-TiO₂/rGO nanocomposite was stated to be a promising pathway for removing the organic dye from water.

采用两步水热法制备了氧化锌掺杂的二氧化钛/还原氧化石墨烯（ZnO-TiO ₂ / rGO）纳米复合材料，并用于紫外光下水溶液中亚甲基蓝的吸附和光降解。通过傅里叶变换红外光谱，X射线衍射，拉曼光谱，扫描电子显微镜，透射电子显微镜，能量色散X射线光谱，Brunauer-Emmett-Teller比表面积，热重分析确定了催化剂材料的特性。和紫外可见光谱。结果表明，rGO表面上TiO ₂和ZnO纳米颗粒的存在和分布均匀，平均直径为20 – 30 nm，比表面积高（182.52 m ²/G）。通过pH介质研究光降解。pH为9时的平衡吸附在60分钟（43.68％）和60分钟光降解（99.84％）之后达到最高吸附效率。根据结果​​，使用ZnO-TiO ₂ / rGO纳米复合材料进行光降解被认为是从水中去除有机染料的有前途的途径。