Sustainable synthesis of biogenic ZnO NPs for mitigation of emerging pollutants and pathogens

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

doi:10.1016/j.envres.2022.114952

Cited by 20 publications

(6 citation statements)

References 27 publications

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“…After maintaining the temperature for 3 h and drying the precipitate, ZnO NPs of approx. 15–25 nm were obtained (Karanpal Singh et al 2023 ).…”

Section: Methods Used For Zno Nanostructure Preparation and Their Cha...mentioning

confidence: 99%

“…ZnO NPs exhibit strong antibacterial properties, making them a promising candidate for various antimicrobial applications. The effectiveness of ZnO NPs against bacterial strains like Bacillus subtilis and Escherichia coli is attributed to their nanoscale size, which enhances their interactions with bacteria (Karanpal Singh et al 2023 ). When reduced to the nanometer range, ZnO NPs can efficiently target bacterial surfaces and even penetrate inside the bacterial cells, leading to distinct bactericidal mechanisms (Seil and Webster 2012 ).…”

Section: Recent Contributions Regarding Emerging Pollutant (Ep) Degra...mentioning

confidence: 99%

“…These interactions are generally toxic to bacteria, making ZnO NPs valuable in antimicrobial applications, such as in the food industry and wastewater treatment. Moreover, their biocompatibility and thermal stability further enhance their potential as antibacterial agents (Karanpal Singh et al 2023 ). Overall, the literature suggests that ZnO NPs possess a strong antimicrobial capability that can be harnessed for various biotechnological and environmental purposes.…”

Section: Recent Contributions Regarding Emerging Pollutant (Ep) Degra...mentioning

confidence: 99%

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ZnO nanostructured matrix as nexus catalysts for the removal of emerging pollutants

Matei,

Șăulean,

Râpă

et al. 2023

Environ Sci Pollut Res

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Water pollution stands as a pressing global environmental concern, elevating the significance of innovative, dependable, and sustainable solutions. This study represents an extensive review of the use of photocatalytic zinc oxide nanoparticles (ZnO NPs) for the removal of emerging pollutants from water and wastewater. The study examines ZnO NPs’ different preparation methods, including physical, chemical, and green synthesis, and emphasizes on advantages, disadvantages, preparation factors, and investigation methods for the structural and morphological properties. ZnO NPs demonstrate remarkable properties as photocatalysts; however, their small dimensions pose an issue, leading to potential post-use environmental losses. A strategy to overcome this challenge is scaling up ZnO NP matrices for enhanced stability and efficiency. The paper introduces novel ZnO NP composites, by incorporating supports like carbon and clay that serve as photocatalysts in the removal of emerging pollutants from water and wastewater. In essence, this research underscores the urgency of finding innovative, efficient, and eco-friendly solutions for the removal of emerging pollutants from wastewater and highlights the high removal efficiencies obtained when using ZnO NPs obtained from green synthesis as a photocatalyst. Future research should be developed on the cost–benefit analysis regarding the preparation methods, treatment processes, and value-added product regeneration efficiency. Graphical Abstract

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“…After maintaining the temperature for 3 h and drying the precipitate, ZnO NPs of approx. 15–25 nm were obtained (Karanpal Singh et al 2023 ).…”

Section: Methods Used For Zno Nanostructure Preparation and Their Cha...mentioning

confidence: 99%

Section: Recent Contributions Regarding Emerging Pollutant (Ep) Degra...mentioning

confidence: 99%

Section: Recent Contributions Regarding Emerging Pollutant (Ep) Degra...mentioning

confidence: 99%

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ZnO nanostructured matrix as nexus catalysts for the removal of emerging pollutants

Matei,

Șăulean,

Râpă

et al. 2023

Environ Sci Pollut Res

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“…To overcome these shortcomings, there is a growing demand for bioresources for the synthesis of NPs as a promising and ongoing trend in the field. 36,37 This approach can be a more sustainable and environmentally friendly alternative to help address the limitations associated with conventional physical and chemical methods. The utilization of natural sources such as plants and microorganisms present opportunities for large-scale, costeffective, and controlled synthesis of ZnO NPs with potential applications in various fields (e.g., agriculture, medicine, and environmental remediation).…”

Section: Introductionmentioning

confidence: 99%

Alleviation of cadmium-induced oxidative damage through application of zinc oxide nanoparticles and strigolactones in Solanum lycopersicum L.

Raja,

Singh,

Qadir

et al. 2024

Environ. Sci.: Nano

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“…In the same way, the green synthesis of ZnO has also been reported [ 35 , 36 , 37 ]. Plant extracts such as Pinus brutia [ 38 ], Citrus limon [ 39 ], and Ficus racemose [ 40 ] have been used to synthesize different nanostructures of this oxide. These extracts provide the necessary compounds to carry out the precipitation reaction and, at the same time, act as stabilizing agents to control the morphology of the nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Sargassum natans I Algae: An Alternative for a Greener Approach for the Synthesis of ZnO Nanostructures with Biological and Environmental Applications

et al. 2023

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In this work, the influence of the Sargassum natans I alga extract on the morphological characteristics of synthesized ZnO nanostructures, with potential biological and environmental applications, was evaluated. For this purpose, different ZnO geometries were synthesized by the co-precipitation method, using Sargassum natans I alga extract as stabilizing agent. Four extract volumes (5, 10, 20, and 50 mL) were evaluated to obtain the different nanostructures. Moreover, a sample by chemical synthesis, without the addition of extract, was prepared. The characterization of the ZnO samples was carried out by UV-Vis spectroscopy, FT-IR spectroscopy, X-ray diffraction, and scanning electron microscopy. The results showed that the Sargassum alga extract has a fundamental role in the stabilization process of the ZnO nanoparticles. In addition, it was shown that the increase in the Sargassum alga extract leads to preferential growth and arrangement, obtaining well-defined shaped particles. ZnO nanostructures demonstrated significant anti-inflammatory response by the in vitro egg albumin protein denaturation for biological purposes. Additionally, quantitative antibacterial analysis (AA) showed that the ZnO nanostructures synthesized with 10 and 20 mL of extract demonstrated high AA against Gram (+) S. aureus and moderate AA behavior against Gram (-) P. aeruginosa, depending on the ZnO arrangement induced by the Sargassum natans I alga extract and the nanoparticles’ concentration (ca. 3200 µg/mL). Additionally, ZnO samples were evaluated as photocatalytic materials through the degradation of organic dyes. Complete degradation of both methyl violet and malachite green were achieved using the ZnO sample synthesized with 50 mL of extract. In all cases, the well-defined morphology of ZnO induced by the Sargassum natans I alga extract played a key role in the combined biological/environmental performance.

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Sustainable synthesis of biogenic ZnO NPs for mitigation of emerging pollutants and pathogens

Cited by 20 publications

References 27 publications

ZnO nanostructured matrix as nexus catalysts for the removal of emerging pollutants

ZnO nanostructured matrix as nexus catalysts for the removal of emerging pollutants

Alleviation of cadmium-induced oxidative damage through application of zinc oxide nanoparticles and strigolactones in Solanum lycopersicum L.

Sargassum natans I Algae: An Alternative for a Greener Approach for the Synthesis of ZnO Nanostructures with Biological and Environmental Applications

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