Pistachio Shell-derived Activated Carbon as an Efficient Bio-adsorbent for River Water Treatment

• DOI: 10.3126/jist.v30i1.73097
• Publication Date: 2025-03-14T16:57:16Z
• Authors: Mandira Pradhanan...; Bishal Nepal; Dhurba Suwal; Sarita Manandhar; Sabina Shahi; Amar Prasad Yadav; Nanda Bikram Adhi...
• Keywords: Carbon fibers

The remediation of river water using activated carbon is one the economic solutions to overcome shortage problem. Nanoporous-activated carbons (ACs) were synthesized from pistachio shell powder phosphoric acid as activating agent. Various impregnation ratios used activate precursor and then carbonized at 400℃ for three hours in a nitrogen atmosphere. characterized Scanning Electron Microscopy (SEM), Raman scattering, Fourier Transform Infrared Spectroscopy (FTIR), semi-quantitative surface information was determined Boehm titration, iodine methylene blue adsorption. adsorption maximum (758.45 mg/g) an ratio 1:1.5 (precursor: acid, PSC_1.5). titration FTIR spectra showed oxygenated functional groups such hydroxyl, carboxyl, carbonyl are present shell-derived (PSC_1.5). Langmuir Freundlich models best fitted coefficient determinant comparatively higher model than with capacity 243 mg/g. efficiency PSC_1.5 treatment Bagmati studied. physical chemical properties reveal that excessively polluted changes clean clear after PSC_1.5. It removed more 80% contaminants water, significantly improved quality WHO limits. Therefore, it considered shells useful efficient bio-adsorbent River water.