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Development of multipurpose biomass-derived adsorbents using Coccinia grandis for removal of contaminants

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Abstract

The present study is an attempt to develop newer multipurpose biomass-derived adsorbents for water and wastewater treatment; biomass that are easily available, renewable and most importantly, sustainable. A model adsorbent was developed using Coccinia grandis (CG, Ivy gourd) and further modified by impregnating copper nanoparticles (CG–Cu). The adsorbent characterization was done for evaluating surface morphology, surface area and metal modification. The utility of the newer adsorbents was established for the removal of different contaminants such as dyes (cationic Malachite Green, anionic Congo Red and fluorescent cationic Rhodamine B), Active Pharmaceutical Ingredient pollutant (Ciprofloxacin) and also for the removal of pathogenic bacteria, Gram-negative Escherichia coli. Both CG and CG–Cu bio-nanocomposite were highly effective in removal of different contaminants, 99% dye removal for Malachite Green, with a high adsorption capacity of 49 mg/g, higher than that for commercial activated charcoal whereas for all other dyes, the performance of CG–Cu was similar. The isotherm studies indicated multilayer adsorption, in general. A good adsorption capacity of 10.8 mg/g was also observed for the removal of ciprofloxacin. The combined effect of the bio-nanocomposite, CG–Cu was impressive and 100% disinfection was achieved within 10 min, due to the antimicrobial activity of Cu and oxidation effect of reactive oxygen species enhancing the disinfection.

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Multipurpose biomass derived adsorbents using Coccinia grandis for removal of contaminants

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The datasets generated during and/or analyzed during the current study are provided in the manuscript.

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Funding

VMB would like to acknowledge the funding for the research from Department of Science and technology, The Ministry of Science and Technology India, (DST/TM/WTI/WIC/2K17/100(G)) and also Council of Scientific and Industrial Research (CSIR), Government of India (MLP102326).

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Contributions

SSR and VMB conceived and developed the idea along with experimental methodology/result analysis. SSR conducted all the experiments and analyzed the data. MM, PT and KB contributed to the assistance in experimental studies and analysis of the data. All five authors were involved in the preparation of the manuscript.

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Correspondence to Vinay M. Bhandari.

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Raj, S.S., Mane, M.B., Thanekar, P. et al. Development of multipurpose biomass-derived adsorbents using Coccinia grandis for removal of contaminants. Clean Techn Environ Policy 25, 3393–3405 (2023). https://doi.org/10.1007/s10098-023-02598-w

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  • DOI: https://doi.org/10.1007/s10098-023-02598-w

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