Hilman Imadul Umam, Rita Prasetyowati, Fitri Yuliasari, Teguh Pambudi, Muhammad Fahmi Hakim, Kardiman, Nawa Yunia Ekariyani, Shobih, Eri Widianto
We report the degradation performance of eco-friendly zinc oxide (ZnO)-based photocatalysts combined with natural zeolites to optimize the removal of diazinon, a commonly used pesticide in the contaminated water. The ZnO/zeolite composite was thoroughly characterized using SEM-EDX, XRD, and FTIR to confirm its structural properties and material distribution, while UV-Vis spectrophotometry was employed to assess diazinon sorption. The results indicated that diazinon degradation efficiency increased with extended irradiation time and higher initial concentrations, with optimal adsorption at neutral pH. Under optimal conditions (pH 7, catalyst dosage of 30 mg, 10 ppm diazinon concentration, and 150 min of irradiation), the ZnO/zeolite composite demonstrated outstanding performance, reaching a maximum removal rate of about 86.1%. These findings highlight the considerable potential of ZnO/zeolite composites as effective agents for diazinon removal and providing promising candidates for environmental remediation. © Qatar University and Springer Nature Switzerland AG 2025.
Department of Physics, Faculty of Engineering, Universitas Singaperbangsa Karawang, Telukjambe Timur, Karawang, 41361, Indonesia; Department of Physics Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Jalan Colombo No 1, Yogyakarta, Depok, Sleman, 55281, Indonesia; Department of Chemical Engineering, Faculty of Engineering, Universitas Singaperbangsa Karawang, Telukjambe Timur, Karawang, 41361, Indonesia; Department of Mechanical Engineering, Faculty of Engineering, Universitas Singaperbangsa Karawang, Telukjambe Timur, Karawang, 41361, Indonesia; Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), KST Habibie, Tangerang Selatan, 15314, Indonesia; Research Center for Electronics, National Research and Innovation Agency (BRIN), KST Samaun Samadikun, Jl. Sangkuriang Cisitu, Bandung, 40135, Indonesia
