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Abstract
Biochar has attracted interest for its applications in carbon storage, soil enhancement and remediation, and removal of pollutants. This research explores how the pyrolysis temperature affects the physicochemical properties of biochar from Prosopis africana biomass waste. Due to the underutilization of Prosopis africana in bioenergy production, optimizing its conversion through pyrolysis could offer sustainable solutions for waste management and energy generation. The study involved pyrolysis at varying temperatures (300, 400, and 500 °C) to produce biochar from Prosopis africana wood and pod biomass. The biochar was characterized using proximate and CHNS/O analyses, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) to evaluate its structural, elemental, and thermal properties. The findings revealed that increasing pyrolysis temperature leads to lower biochar yield but enhances carbon content, pH, and thermal stability. High-temperature biochar exhibited larger surface areas and improved adsorption properties, whereas low-temperature biochar retained more functional groups, beneficial for soil amendment. Biochar from Prosopis africana biomass shows potential for carbon sequestration, soil remediation, and bioenergy applications, supporting sustainability and climate mitigation. Pyrolysis temperature significantly influences Prosopis africana biochar properties, and optimizing conditions based on target applications is important for maximizing its benefits in energy, agriculture, and environmental management.
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