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<p>ZnO and Mg doped ZnO nanoparticles (NPs) were synthesized via chemical reduction technique, which were used as photocatalysts for the photodegradation of chlorpyrifos pesticide in aqueous media. The morphological study presented that ZnO NPs has hexagonal and spherical shape while Mg doped ZnO has needle like irregular structure. The XRD pattern demonstrates the crystalline size of ZnO and Mg doped ZnO NPs having diameter 31 and 34.30&#xa0;nm, respectively. FTIR spectra showed peaks at 703, 419 and 1391–1448, cm<sup>−1</sup>, which represent the metal oxide nanoparticles. The photocatalytic degradation study demonstrated that ZnO and Mg doped ZnO NPs degraded about 94 and 97% pesticide within 25&#xa0;min, respectively. The effect of various parameters like irradiation time, pH, initial pesticide concentration and catalyst dosage on the photodegradation of pesticide were also studied. The recovered and re-recovered ZnO and Mg doped ZnO NPs were also significantly degraded the chlorpyrifos pesticide in aqueous media. Further, both types of NPs exhibited promising bioactivity and Antileishmanial activities.</p>

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Photodegradation of Chlorpyrifos Pesticide by Mg Doped ZnO Nanoparticles and their Bioactivity Performance

  • 期刊论文

  • 发表日期：

    2026年1月13日

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  • Mazhar Ali,
  • Tamanna Gul,
  • Zaffar Iqbal,
  • Asma Khan,
  • Khalid Saeed

摘要

ZnO and Mg doped ZnO nanoparticles (NPs) were synthesized via chemical reduction technique, which were used as photocatalysts for the photodegradation of chlorpyrifos pesticide in aqueous media. The morphological study presented that ZnO NPs has hexagonal and spherical shape while Mg doped ZnO has needle like irregular structure. The XRD pattern demonstrates the crystalline size of ZnO and Mg doped ZnO NPs having diameter 31 and 34.30 nm, respectively. FTIR spectra showed peaks at 703, 419 and 1391–1448, cm−1, which represent the metal oxide nanoparticles. The photocatalytic degradation study demonstrated that ZnO and Mg doped ZnO NPs degraded about 94 and 97% pesticide within 25 min, respectively. The effect of various parameters like irradiation time, pH, initial pesticide concentration and catalyst dosage on the photodegradation of pesticide were also studied. The recovered and re-recovered ZnO and Mg doped ZnO NPs were also significantly degraded the chlorpyrifos pesticide in aqueous media. Further, both types of NPs exhibited promising bioactivity and Antileishmanial activities.