1
School of Chemistry, Damghan University, Damghan Iran
2
Technical University of Berlin and university of Potsdam, Berlin, Germany.
10.22128/mch.2026.3083.1070
Abstract
Agricultural waste represents a significant source of various bio-products that can help mitigate environmental pollution and greenhouse gas emissions, while also reducing our reliance on fossil resources. This study focuses on the production of high-value biosorbents derived from pistachio hard skin (PHS). The biomass of PHS was utilized as a precursor for the development of different biosorbents through three distinct activation methods: solvent extraction, chemical activation with phosphoric acid, and pyrolysis processes. The produced biosorbents were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) analyses. Depending on the activation methods employed, the adsorption capacities of the biosorbents for the Methyl Orange (MO) dye component varied from approximately 100 to 700 mg/g. Notably, the maximum adsorption capacity was achieved after the pyrolysis process. Furthermore, isotherm studies indicated that the Sips and Langmuir isotherm models provided a relatively better fit for the experimental data, with R2 values of 0.999 and 0.983, respectively.
Baseri, H., Fazlali, P., & Hooshmand Poor, A. H. (2025). Adsorption of Methyl Orange onto Biosorbent from Pistachio Shell: Effects of Different Activation Methods. Materials Chemistry Horizons, 4(1), 49-58. doi: 10.22128/mch.2026.3083.1070
MLA
Hadi Baseri; Pooya Fazlali; Amir Hussein Hooshmand Poor. "Adsorption of Methyl Orange onto Biosorbent from Pistachio Shell: Effects of Different Activation Methods", Materials Chemistry Horizons, 4, 1, 2025, 49-58. doi: 10.22128/mch.2026.3083.1070
HARVARD
Baseri, H., Fazlali, P., Hooshmand Poor, A. H. (2025). 'Adsorption of Methyl Orange onto Biosorbent from Pistachio Shell: Effects of Different Activation Methods', Materials Chemistry Horizons, 4(1), pp. 49-58. doi: 10.22128/mch.2026.3083.1070
VANCOUVER
Baseri, H., Fazlali, P., Hooshmand Poor, A. H. Adsorption of Methyl Orange onto Biosorbent from Pistachio Shell: Effects of Different Activation Methods. Materials Chemistry Horizons, 2025; 4(1): 49-58. doi: 10.22128/mch.2026.3083.1070
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