Nano-graphitic biochar from pyrolyzed lemon peel as an efficient adsorbent for cationic dye removal from aqueous solutions.

Alaa M O Al-Bedaiwi, Sabrein H Mohamed, Alyaa I Salim, Tarek A Seaf Elnasr, Tamer H A Hasanin

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 citing paper in PubMed.

HRSC advances · 2026
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5 authors.

Alaa M O Al-BedaiwiDepartment of Chemistry, College of Science, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia.

Sabrein H MohamedDepartment of Chemistry, College of Science, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia.

Alyaa I SalimSchool of Biotechnology, Nile University, 26th of July Corridor, 12588, Sheikh Zayed City, Giza, Egypt. asalim@nu.edu.eg.

Tarek A Seaf ElnasrDepartment of Chemistry, College of Science, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia.

Tamer H A HasaninDepartment of Chemistry, College of Science, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The valorization of agricultural waste into effective adsorbents presents a promising strategy for sustainable wastewater remediation. This study investigates the conversion of lemon peel (LP), a common biowaste, into nano-graphitic biochar (NGB). Evaluating both materials as green adsorbents for the removal of the cationic dye Basic Fuchsin (BF). FTIR, SEM, and XRD were used to characterize the NGB. The obtained data confirm graphitization, high porosity, and exfoliated morphology compared to raw LP. The batch adsorption experiment conditions, pH, adsorbent dose, contact time, initial dye concentration, and temperature, have been optimized. NGB demonstrated exceptional performance, achieving 99.2% removal efficiency within just 5 min at optimal conditions (pH 7, 0.1 g adsorbent dose), significantly outperforming raw LP (86.4%). Isotherm analysis revealed that adsorption onto LP followed the Freundlich model (R

Indexed as

CharcoalCitrusColoring AgentsWater Pollutants, ChemicalWater PurificationAdsorptionCationsHydrogen-Ion ConcentrationKineticsPyrolysisRosaniline DyesSpectroscopy, Fourier Transform InfraredTemperatureWastewaterbasic fuchsinbiocharCationsCharcoalColoring AgentsRosaniline DyesWastewaterWater Pollutants, ChemicalAdsorption kineticsAgricultural waste valorizationGreen synthesisLow-cost treatmentNano-graphitic biochar

Identifiers

PMID42486873

DOI10.1038/s41598-026-58251-1

PMCPMC13392077

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.