PREPARATION AND CHARACTERIZATION OF BIOCHAR FROM GROUNDNUT SHELLS
DOI:
https://doi.org/10.5281/Keywords:
characterization, ground nut shells, biomass, sustainable, pyrolysis, biochar yieldAbstract
The goal of this work was to produce renewable biochar from groundnut shells as a potential method of treating wastewater. In this work, the biomasses of sugar cane bagasse and peanut shells were pyrolyzed at 400°C, 450°C, and 500°C to create biochars. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy, and energy dispersive X-ray spectrometry (SEM and EDX) were used to characterize the biomass samples and the biochars they formed in order to assess their potential. According to experimental findings, biochar has superior porous properties over raw biomass. Additionally, we discovered that raising the pyrolysis temperature significantly enhanced the biochars' morphology and porosity.
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Ajayi, V. A., & Lateef, A. (2023). Biotechnological valorization of agrowastes for circular bioeconomy: Melon seed shell, groundnut shell and groundnut peel. Cleaner and Circular Bioeconomy, 4(August 2022). https://doi.org/10.1016/j.clcb.2023.100039
Anika, N., Marpaung, D. S. S., & Bindar, Y. (2021). Analysis of the Impact of Biochar Application on Soil Fertility and Productivity. IOP Conference Series: Earth and Environmental Science, 830(1). https://doi.org/10.1088/1755-1315/830/1/012062
Biochar, L. (2023). Efficient and Selective Removal of Organic Cationic Dyes by Peel of Brassica juncea Coss. var. gemmifera Lee et Lin-Based Biochar. Molecules, 28(3353).
Ćwieląg-Piasecka, I., Jamroz, E., Medyńska-Juraszek, A., Bednik, M., Kosyk, B., & Polláková, N. (2023). Deashed Wheat-Straw Biochar as a Potential Superabsorbent for Pesticides. Materials, 16(6), 1–14. https://doi.org/10.3390/ma16062185
Dwivedi, S., Tanveer, A., Yadav, S., Anand, G., & Yadav, D. (2022). Agro-Wastes for Cost Effective Production of Industrially Important Microbial Enzymes. In Microbial Biotechnology. Wiley, 435–460. 10.1002/9781119834489.ch23.
Hepautwa, A. A., Hilonga, A., Mrosso, R., Alfredy, T., & Jande, Y. A. C. (2026). Microstructural and physicochemical characterization, mechanical and durability performance with statistical evaluation of montmorillonite-impregnated burnt red soil bricks incorporating pyrolyzed coffee and tobacco biochars. PloS One, 21(9), e0357232. https://doi.org/10.1371/journal.pone.0357232
Hoslett, J., Ghazal, H., Katsou, E., & Jouhara, H. (2021). Science of the Total Environment The removal of tetracycline from water using biochar produced from agricultural discarded material. Science of the Total Environment, 751, 141755. https://doi.org/10.1016/j.scitotenv.2020.141755
K. Jadhav, S., & R. Thorat, S. (2022). Adsorption of Azo Dyes Using Biochar Prepared from Regional Crop Waste Material. Biosciences Biotechnology Research Asia, 19(1), 141–151. https://doi.org/10.13005/bbra/2973
Ma, X., Zhou, B., Budai, A., Jeng, A., Hao, X., & Wei, D. (2016). Study of Biochar Properties by Scanning Electron Microscope – Energy Dispersive X-Ray Spectroscopy (SEM-EDX). Communications in Soil Science and Plant Analysis, 3624(February). https://doi.org/10.1080/00103624.2016.1146742
Nguyen, V. D., & Vu, A. (2025). Synthesis of Novel Edta-Modified Aluminum Oxide for Improved Removal of Heavy Metal in Contaminated Water. SSRN.
Niculescu, A.-G., Mihaiescu, B., Mihaiescu, D., Hadibarata, T., & Grumezescu, A. (2024). An updated overview of magnetic composites for water decontamination. Polymers, 16(5), 709.
Oyebamiji, O. O., Olaleru, A. S., Oyeleke, R. B., & Ofodile, L. N. (2025). Evaluation and characterization of biochar and briquettes from agricultural wastes for sustainable energy production. Waste Management Bulletin, 3(3), 100198. https://doi.org/10.1016/j.wmb.2025.100198
Qin, H., Shao, X., Shaghaleh, H., Gao, W., & Hamoud, Y. A. (2023). Adsorption of Pb2+ and Cd2+ in Agricultural Water by Potassium Permanganate and Nitric Acid-Modified Coconut Shell Biochar. Agronomy, 7(13), 153–164. https://doi.org/10.3390/agronomy13071813
Qodar, T., Rara, F., Lakuy, A., Muhamad, R., Gunawan, T., Rahmawati, Z., & Widiastuti, N. (2025). Functionalized graphite into hydrophilic activated carbon : Synthesis , characterization , and adsorption studies. Case Studies in Chemical and Environmental Engineering, 11(November 2024), 101035. https://doi.org/10.1016/j.cscee.2024.101035
Selvarajoo, A., & Oochit, D. (2020). Effect of pyrolysis temperature on product yields of palm fibre and its biochar characteristics. Materials Science for Energy Technologies, 3, 575–583. https://doi.org/10.1016/j.mset.2020.06.003
Wang, S., Li, W., Yin, X., Wang, N., Yuan, S., Yan, T., Qu, S., Yang, X., & Chen, D. (2019). Cd(II) adsorption on different modified rice straws under FTIR spectroscopy as influenced by initial pH, Cd(II) concentration, and ionic strength. International Journal of Environmental Research and Public Health, 16(21). https://doi.org/10.3390/ijerph16214129
Wang, S., Li, X., & Zhu, Y. (2023). Comparison of the adsorption capacity and mechanisms of mixed heavy metals in wastewater by sheep manure biochar and Robinia pseudoacacia biochar. Water Science and Technology, 87(12), 3083–3094. https://doi.org/10.2166/wst.2023.180
Wijeyawardana, P., & Nanayakkara, N. (2022). Removal of Cu , Pb and Zn from stormwater using an industrially manufactured sawdust and paddy husk derived biochar. Environmental Technology & Innovation, 28, 102640. https://doi.org/10.1016/j.eti.2022.102640
Wu, Q., Xian, Y., He, Z., Zhang, Q., Wu, J., Yang, G., Zhang, X., Qi, H., Ma, J., Xiao, Y., & Long, L. (2019). Adsorption characteristics of Pb(II) using biochar derived from spent mushroom substrate. Scientific Reports, 9(1), 1–11. https://doi.org/10.1038/s41598-019-52554-2
Yaseen, Z. M., & Alhalimi, F. L. (2025). Heavy metal adsorption efficiency prediction using biochar properties: a comparative analysis for ensemble machine learning models. Scientific Reports, 15(1), 1–16. https://doi.org/10.1038/s41598-025-96271-5
Zhang, X., Zhang, P., Yuan, X., Li, Y., & Han, L. (2020). Effect of pyrolysis temperature and correlation analysis on the yield and physicochemical properties of crop residue biochar. Bioresource Technology, 296, 122318. https://doi.org/10.1016/j.biortech.2019.122318
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