Photocatalytic removal of imidacloprid containing frequently applied insecticide in agriculture industry using Co3O4 modified MoO3 composites

Frontiers in Chemistry

Chemistry

Amel Musa Taha¹  Obadah S. Abdel-Rahman¹  Ahmed Khalil²  Mohamed Shaker S. Adam³  Sumbleen Sikander⁴  M. Tariq Qamar⁴  Shahid Iqbal⁵  Eslam B. Elkaeed⁶ 

[1] Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia;Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia;Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt;Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia;Department of Chemistry, Faculty of Science, Sohag University, Sohag, Egypt;Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan;Department of Chemistry, School of Natural Sciences (SNS), National University of Science and Technology (NUST), Islamabad, Pakistan;Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh, Saudi Arabia;

关键词: insecticide;    imidacloprid;    greeda;    MoO3 composites;    photocatalysis;   

DOI  :  10.3389/fchem.2023.1125835

 received in 2022-12-16, accepted in 2023-02-23,  发布年份 2023

来源: Frontiers

【 摘 要 】

Water pollution caused by the frequent utilization of pesticides in the agriculture industry is one of the major environmental concerns that require proper attention. In this context, the photocatalytic removal of pesticides from contaminated water in the presence of metallic oxide photocatalysts is quite in approach. In the present study, Orthorhombic MoO3 has been modified with varying amount of cobalt oxide through wet impregnation for the removal of imidacloprid and imidacloprid-containing commercially available insecticide. The solid-state absorption response and band gap evaluation of synthesized composites revealed a significant extension of absorption cross-section and absorption edge in the visible region of the light spectrum than pristine MoO3. The indirect band gap energy varied from ∼2.88 eV (MoO3) to ∼2.15 eV (10% Co3O4-MoO3). The role of Co3O4 in minimizing the photo-excitons’ recombination in MoO3 was studied using photoluminescence spectroscopy. The orthorhombic shape of MoO3 was confirmed through X-ray diffraction analysis and scanning electron microscopy. Moreover, the presence of distinct absorption edges and diffraction peaks corresponding to Co3O4 and MoO3 in absorption spectra and XRD patterns, respectively verified the composite nature of 10% Co3O4-MoO3. The photocatalytic study under natural sunlight irradiation showed higher photocatalytic removal (∼98%) of imidacloprid with relatively higher rate by 10% Co3O4-MoO3 composite among all contestants. Furthermore, the photocatalytic removal (∼93%) of commercially applied insecticide, i.e., Greeda was also explored.

【 授权许可】

Unknown   
Copyright © 2023 Adam, Sikander, Qamar, Iqbal, Khalil, Taha, Abdel-Rahman and Elkaeed.