Efficient photocatalytic degradation of industrial dye using biogenic ZnO NPs

Singh, Karanpal; Nancy, None; Singh, Jagpreet; Singh, Gurjinder

doi:10.1016/j.matpr.2022.06.138

Cited by 6 publications

(1 citation statement)

References 33 publications

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“…Similar ndings were proposed by Ezealisiji et al (2019), who claimed that zinc nitrate was ionized in an aqueous formed Zn 2+ , which was then reduced to Zn + by a phytochemical found in the extract. By hydrolysis process, the hydroxyl group present in the polyphenols might turn into zinc hydroxide (Basnet et (Singh et al 2022). Studies have also shown that ZnO-NPs made using green synthesis have a potent bactericidal effect on a variety of microorganisms (Aldeen et al 2022;Lal et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Green nanotechnology advances: green manufacturing of zinc nanoparticles, characterization, and foliar application on wheat and antibacterial characteristics using Mentha spicata (mint) and Ocimum basilicum (basil) leaf extracts

Doğaroğlu

Uysal

Çaylalı

et al. 2023

Environ Sci Pollut Res

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In this study, plant extracts were used as stabilizing agents to synthesize ZnO-NPs with a green chemistry approach. The plant extracts were obtained from the aromatic plants of mint and basil leaves. The physical properties of the produced nanoparticles were investigated using XRD, SEM and FTIR. The shape of ZnO-NPs was triangular, as revealed by SEM analysis. The effects of biologically synthesized ZnO-NPs on plants when they reach the soil were investigated on the growth of wheat. In addition, antibacterial potential of ZnO-NPs on gram-positive and gram-negative bacteria was investigated. Results showed that S. aureus was more sensitive to all three types of ZnO-NPs than E. coli. Synthesized ZnO-NPs were also given as foliar treatment in order to determine Zn + 2 uptake by plants and potential toxic effects on the growth of wheat. M-ZnO-NPs and B-ZnO-NPs improved the germination percentage of wheat at 400 mg/L concentration (100%), while raw ZnO-NPs showed 90% germination at the same concentration. It was also revealed that plant growth varies depending on the species and concentrations of ZnO-NPs, therefore, if foliar treatments are applied to wheat, the threshold concentrations, sizes and species of ZnO-NPs should be carefully evaluated.

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Section: Introductionmentioning

confidence: 99%

Green nanotechnology advances: green manufacturing of zinc nanoparticles, characterization, and foliar application on wheat and antibacterial characteristics using Mentha spicata (mint) and Ocimum basilicum (basil) leaf extracts

Doğaroğlu

Uysal

Çaylalı

et al. 2023

Environ Sci Pollut Res

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A review on biological synthesis of ZnO nanostructures and its application in photocatalysis mediated dye degradation: An overview

Areeshi

2023

Luminescence

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Zinc oxide (ZnO) has several industrial applications due to its versatile properties, which lead to its continuously increasing demand in different industrial sectors. Additionally, ZnO nanostructures possess unique photocatalytic activity, and because of this, they are being applied to degrade organic dyes through photocatalysis for wastewater treatment. Nevertheless, chemical synthesis methods to develop ZnO nanostructures have raised concerns related to environmental issues, furthermore, these methods are found to be costly and tedious. As a result, the synthesis of ZnO nanostructures using green methods is gaining popularity due to its low cost and eco‐friendly mode, while avoiding the use of toxic chemicals. Green synthesis of ZnO nanostructures using different biological approaches involving plants, algae, and different microorganism‐derived bioactive compounds has been well reported for diverse applications. Among different applications, ZnO nanostructures that enable photocatalysis to degrade dye have been found to be imperative for wastewater treatments. Therefore, the current review explores recent studies on green synthesis approaches to prepare ZnO nanostructures via adopting different biological methods that rely on plants, algae, and bacterial microorganisms. The properties of ZnO nanostructures, along with their green synthesis routes and feasible mechanisms, have also been discussed in this review. This review focuses on the use and efficiency of green route synthesized ZnO nanostructures as nanophotocatalysts for the degradation of organic dyes in wastewater treatment. Additionally, existing challenges in green synthesis methods and the efficiency of ZnO nanostructures to degrade organic dyes following photocatalysis has been discussed.

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Rosemary‐Mediated Green Synthesis of ZnO Nanoparticles and their Integration into Hydrogel Matrices: Evaluating Effects on Wheat Growth and Antibacterial Properties

Uysal,

Görkem Doğaroğlu,

Çaylali

et al. 2024

Global Challenges

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In this study, the impact of zinc oxide nanoparticles (ZnO‐NPs) generated using rosemary extract, synthesized using environmentally friendly processes and integrated into a cross‐linked polymer matrix, on growth performance of wheat is evaluated. Rosemary extract used as coating, stabilizing, and reducing agents in this green synthesis method. Fourier transform infrared spectroscopy analyses demonstrated the presence of phytochemical constituents of the plant extract that served as capping agents during the synthesis process. The nanoparticles are sprayed to the plant leaves. The effects of nanoparticles within the hydrogel on plant development are compared with the effects of nanoparticles in suspension. The percentage of seed germination is unaffected by either rosemary‐ or raw‐ZnO‐NPs; however, the root and shoot elongation are considerably impacted by the nanoparticle treatments. The threshold concentrations are determined as 3000 mg L−1 for rosemary‐ZnO‐NPs and 2000 mg L−1 for raw‐ZnO‐NPs. Additionally, antibacterial test results showed that the activity level on Escherichia coli is higher for rosemary‐ZnO‐NPs compared to raw‐ZnO‐NPs. The results of this research may provide guidance on how green synthesis methods and the use of nanoparticle‐hydrogel composites in plant breeding can be used in future agricultural applications. This can be considered an important step in terms of agricultural innovations and sustainability.

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Efficient photocatalytic degradation of industrial dye using biogenic ZnO NPs

Cited by 6 publications

References 33 publications

Green nanotechnology advances: green manufacturing of zinc nanoparticles, characterization, and foliar application on wheat and antibacterial characteristics using Mentha spicata (mint) and Ocimum basilicum (basil) leaf extracts

Green nanotechnology advances: green manufacturing of zinc nanoparticles, characterization, and foliar application on wheat and antibacterial characteristics using Mentha spicata (mint) and Ocimum basilicum (basil) leaf extracts

A review on biological synthesis of ZnO nanostructures and its application in photocatalysis mediated dye degradation: An overview

Rosemary‐Mediated Green Synthesis of ZnO Nanoparticles and their Integration into Hydrogel Matrices: Evaluating Effects on Wheat Growth and Antibacterial Properties

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