Palm and Eucalyptus waste-derived biochars for removing imidacloprid and myclobutanil from pesticide- contaminated water.

Osama I Abdallah, Sayed M Saleh, Sherif B Abdel Ghani, Saleh S Alhewairini, Ahmed Helal

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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. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Osama I AbdallahDepartment of Pesticide Residues and Environmental Pollution, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Dokki, Giza, 12618, Egypt.

Sayed M SalehDepartment of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia.

Sherif B Abdel GhaniDepartment of Plant Protection, College of Agriculture and Food, Qassim University, Buraidah, 51452, Saudi Arabia. h.fouda@qu.edu.sa.

Saleh S AlhewairiniDepartment of Plant Protection, College of Agriculture and Food, Qassim University, Buraidah, 51452, Saudi Arabia. hoierieny@qu.edu.sa.

Ahmed HelalNanostructured Materials and Nanotechnology Department, Advanced Materials Institute, Central Metallurgical R&D Institute (CMRDI), P.O. Box 87, Helwan, 11421, Cairo, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two biochars, palm petiole biochar (PPB) and eucalyptus leaf biochar (ELB), were prepared from palm (Phoenix dactylifera) petioles and eucalyptus (Eucalyptus sp.) leaves and evaluated as low-cost sorbents for the removal of imidacloprid and myclobutanil from aqueous solutions. Batch adsorption experiments were conducted to examine the effects of adsorbent dose, pH, temperature, contact time, and initial pesticide concentration. The highest removal was achieved at pH 7, 25 ± 1 °C, 24 h contact time, a biochar dose of 5 g L⁻¹, and an initial concentration of 50 mg L⁻¹ for each pesticide. Thermodynamic analysis indicated that the adsorption process was spontaneous and exothermic. Adsorption kinetics were evaluated using pseudo-first order and pseudo-second-order models, whereas equilibrium data were analyzed using the Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich isotherm models. Among the tested equilibrium models, Langmuir and Freundlich provided the best fit to the adsorption data. PPB showed stronger practical removal performance than ELB. Under rapid-treatment conditions using 100 mg of biochar, PPB removed 87.4% of imidacloprid and 92.1% of myclobutanil, whereas ELB removed 66.6% and 80.0%, respectively. These findings demonstrate that PPB and ELB, particularly PPB, are promising eco-friendly sorbents for the treatment of pesticide-contaminated water and concentrated agricultural point-source wastewaters.

Indexed as

ArecaceaeCharcoalEucalyptusImidazolesNitrilesNitro CompoundsPesticidesTriazolesWater Pollutants, ChemicalWater PurificationAdsorptionHydrogen-Ion ConcentrationKineticsNeonicotinoidsTemperatureThermodynamicsbiocharCharcoalimidaclopridImidazolesNeonicotinoidsNitrilesNitro CompoundsPesticidessysthaneTriazolesWater Pollutants, ChemicalAdsorption kineticsBiochar regenerationPalm treesSustainabilityThermodynamicsWater quality monitoring

Identifiers

PMID42071085

DOI10.1038/s41598-026-51008-w

PMCPMC13273158

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LicenceCC BY-NC-ND

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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.