Abstract
A novel silver-doped hydrochar (Ag-HC-230) was synthesized at 230 °C via hydrothermal carbonization of Tectona grandis seeds (TGs). The characteristic properties of the Ag-HC-230 were investigated using FTIR, XRD, TGA, SEM and surface area measurements. These results were further utilized for exploring the removal efficiency of the prepared material for chemical and biological contaminants. The surface area and pore volume of Ag-HC-230 were observed to be 24.9 m2g−1 and 0.073 cm3g−1, respectively. The ultimate analysis demonstrated that the prepared adsorbent was rich in C content (67.77%) as compared to N, H and S content. An ingenious investigation on the antibacterial and adsorptive performance of Ag-HC-230 was evaluated too. The antibacterial performance of Ag-HC-230 was analysed by the agar well diffusion method against the cultured suspensions of S. aureus and E. coli. To provide a better insight of Ag-HC-230, the removal of acridine yellow G (AYG) was also studied and the experimental removal capacity was found to be 0.073 mmolg−1 which was higher than undoped hydrochar HC-230-4 (0.058 mmolg−1). The kinetic experimental data were tested by fitting with different kinetics models, and the PSO model was found to be effectively applicable. The adsorption data of AYG on Ag-HC-230 were evaluated using Temkin, Freundlich, Langmuir and D-R among which the data well fitted with the Langmuir model.
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Authors are thankful to DST, New Delhi, India, for the financial support under Water Technology Initiative (Project No: DST/TMD/EWO/WTI/2K19/EWFH/2019/90).
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S, SC and MC were involved in the conceptualization; S, SC and MC contributed to the methodology, software and validation; S, SC, SK2 and MC were involved in the formal analysis; S, SC and MC performed the investigation; S, SC, SK1 and MC contributed to the resources; S, SC, SK2 and MC curated the data; S, SC and MC contributed to writing—original draft; S, SC, SK1, IT, MHD, MS, IPPC and MC contributed to writing—review and editing; S, SC, IT, IPPC, MHD and MC performed the visualization; S contributed to the supervision. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Suhas, Chaudhary, M., Chaudhary, S. et al. An ingenious investigation on the adsorptive and antibacterial properties of a novel silver-doped hydrochar. Int. J. Environ. Sci. Technol. (2024). https://doi.org/10.1007/s13762-024-05602-y
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DOI: https://doi.org/10.1007/s13762-024-05602-y