Green metal oxides coated biochar nanocomposites preparation and its utilization in vertical flow constructed wetlands for reactive dye removal: Performance and kinetics studies

Munir, Ruba; Ali, Khuram; Naqvi, Syed Abbas Zilqurnain; Muneer, Amna; Bashir, Muhammad Zeeshan; Maqsood, Muhammad; Noreen, Saima

doi:10.1016/j.jconhyd.2023.104167

Cited by 18 publications

(1 citation statement)

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“…Various contaminants, such as heavy metals, organic compounds, and dyes, can be adsorbed by MnO-NPs ( Martinez-Vargas et al., 2018 ). Such results have also been reported in previous studies ( Shabanloo et al., 2020 ; Jothinathan et al., 2022 ; Munir et al., 2023 ). Results of the experimentare supported by the findings of Yaashikaa et al.…”

Section: Discussionsupporting

confidence: 92%

Remediation of wastewater by biosynthesized manganese oxide nanoparticles and its effects on development of wheat seedlings

Ishfaq,

Shahid,

Nawaz

et al. 2023

Front. Plant Sci.

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IntroductionNanoparticles play a vital role in environmental remediation on a global scale. In recent years, there has been an increasing demand to utilize nanoparticles in wastewater treatment due to their remarkable physiochemical properties.MethodsIn the current study, manganese oxide nanoparticles (MnO-NPs) were synthesized from the Bacillus flexus strain and characterized by UV/Vis spectroscopy, X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy.ResultsThe objective of this study was to evaluate the potential of biosynthesized MnO-NPs to treat wastewater. Results showed the photocatalytic degradation and adsorption potential of MnO-NPs for chemical oxygen demand, sulfate, and phosphate were 79%, 64%, and 64.5%, respectively, depicting the potential of MnO-NPs to effectively reduce pollutants in wastewater. The treated wastewater was further utilized for the cultivation of wheat seedlings through a pot experiment. It was observed that the application of treated wastewater showed a significant increase in growth, physiological, and antioxidant attributes. However, the application of treated wastewater led to a significant decrease in oxidative stress by 40%.DiscussionIt can be concluded that the application of MnO-NPs is a promising choice to treat wastewater as it has the potential to enhance the growth, physiological, and antioxidant activities of wheat seedlings.

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