Photocatalytic degradation of imidacloprid by Ag-ZnO composite

Kanwal, Mahwish; Tariq, Saadia R.; Chotana, Ghayoor Abbas

doi:10.1007/s11356-018-2693-8

Cited by 37 publications

(8 citation statements)

References 49 publications

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“…The samples were collected after a regular time interval (light exposure) of 30 min and filtered using a 0.20 µm syringe filter. The filtered samples were then subjected to a UV-visible spectrophotometer (UV-1800, Shimadzu, Japan) for the monitoring of imidacloprid removal while selecting its absorbance at a characteristic wavelength, i.e., 270 nm (λ max ) ( Kanwal et al, 2018 ). The same procedure was adopted to monitor the removal of 15 ppm imidacloprid over other synthesized Co 3 O 4 -modified MoO 3 composites.…”

Section: Methodsmentioning

confidence: 99%

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

et al. 2023

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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.

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Section: Methodsmentioning

confidence: 99%

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

et al. 2023

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“…The authors hypothesized that when silver ions are doped on ZnO they act as the electron sinks for the photo‐excited electrons from the semiconductor. Moreover, Ag‐ZnO composite was found to have following advantageous aspects such as it cause complete mineralization of imidacloprid and led to the formation of non‐toxic degradation products [96] …”

Section: Approaches For the Elimination/degradation Of Imidaclopridmentioning

confidence: 99%

A Review on Methods for the Elimination of Imidacloprid: 2018–2022

Kathuria,

Bhattu,

Bankar

et al. 2023

ChemistrySelect

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Imidacloprid, a neonicotinoid insecticide is used widely in agricultural fields to control insect pests. It exhibits insecticidal property by blocking the insect nicotinic acetylcholine receptors (nAChRs). However, its excessive use over the decades has become hazardous to the living beings and environment. Thus, it is crucial to find out an efficient and effective way for the elimination of imidacloprid from the environment. To meet this requirement, scientists across the world are working on various remediation approaches such as physical (adsorption), chemical (oxidation, hydrolysis, illumination) and biological (microbial degradation). This review focuses on various approaches for the elimination of imidacloprid from the environment and also highlights the associated merits and demerits. The review will pave the way for the scientific community to develop more simple and eco‐friendly approaches for imidacloprid elimination.

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“…On the other hand, when the light intensity increases, the separation between electrons and holes competes with recombination, causing the reaction rate to decrease. 7,22,23…”

Section: Light Intensity Effect On Photodegradation Of the Dyementioning

confidence: 99%

Removal of Pollutants from Aqueous Solutions by using Zinc oxide Nanoparticles

Bedano¹,

Alkaim²

2022

IJPQA

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>This work presents a low-cost method to produce Zinc oxide (ZnO) nanostructured materials for the treatment of water polluted with model organic pollutants (e.g., brilliant green dye). Zinc oxide was prepared using the thermal solvent technique at a temperature of 37°C, at pH 6, and the samples were incinerated for one hour at a temperature of (500°C). Also, silver doped ZnO (Ag-ZnO) was prepared by photo deposition using ultraviolet rays. The photodissociation of Brilliant green dye was studied using ultraviolet rays under different conditions in the presence of Ag-ZnO, studying the effect of some factors, such as the effect of dye concentration and intensity of incident light. The results showed that the smashing efficiency of the zinc oxide surface increased by 92.8% after adding silver. It also showed that the photocatalytic breakdown rate increases with decreasing concentration of Brilliant green dye. Increasing the intensity of the light led to an increase in the rate of photocatalytic breakdown.

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Photocatalytic degradation of imidacloprid by Ag-ZnO composite

Cited by 37 publications

References 49 publications

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

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

A Review on Methods for the Elimination of Imidacloprid: 2018–2022

Removal of Pollutants from Aqueous Solutions by using Zinc oxide Nanoparticles

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