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<p>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&#xa0;mg, 10 ppm diazinon concentration, and 150&#xa0;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.</p>

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Synergistic effects in ZnO/zeolite composites for enhanced visible-light photocatalytic degradation of organophosphates diazinon

  • 期刊论文

  • 发表日期：

    2025年7月4日

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  • Hilman Imadul Umam,
  • Rita Prasetyowati,
  • Fitri Yuliasari,
  • Teguh Pambudi,
  • Muhammad Fahmi Hakim,
  • Kardiman,
  • Nawa Yunia Ekariyani,
  • Shobih,
  • Eri Widianto

摘要

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.