Adsorption of tebuthiuron on hydrochar: structural, kinetic, isothermal, and mechanistic modeling, and ecotoxicological validation of remediative treatment of aqueous system

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dc.contributor.authorMoreira, Bruno Rafael de Almeida [UNESP]
dc.contributor.authorCruz, Victor Hugo [UNESP]
dc.contributor.authorBarbosa Júnior, Marcelo Rodrigues [UNESP]
dc.contributor.authorde Vasconcelos, Leonardo Gomes
dc.contributor.authorda Silva, Rouverson Pereira [UNESP]
dc.contributor.authorLopes, Paulo Renato Matos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionFederal University of Mato Grosso
dc.date.accessioned2023-07-29T16:14:40Z
dc.date.available2023-07-29T16:14:40Z
dc.date.issued2023-01-01
dc.description.abstractTebuthiuron (C9H16N4OS) offers farmers a cost-effective chemical solution to control weeds. Nevertheless, it can manifest as a hazardous organic compound to society and the environment as it escapes from agroecosystems into the surroundings via leaching and running off, polluting surface and underground water bodies. Hence, research was designed to analyze whether hydrochar can develop an adsorbent to remove it from an aqueous solution. Food waste was reacted with subcritical water at a stoichiometric 1:4 ratio (m v−1) and 1.5 M potassium hydroxide (KOH) at 10 g L−1 at 250 °C and 1.5 MPa for 2 h to produce porous hydrochar via simultaneous hydrothermal carbonization and chemical activation. The product at 25, 50, and 100 mg L−1 was tested for its ability to adsorb tebuthiuron (TBT) at 0.5, 1, and 1.5 mg L−1 by spectrophotometry. In addition, kinetic and isothermal models were applied to experimental data to describe the separation of the pollutant from the liquid-phase analytical environment. Equally significant, an ecotoxicological assay was developed to investigate its remediative potential; Lactuca sativa was employed as a testing organism, as it is responsive to TBT at phytotoxic residual quantity. Hydrochar significantly separated TBT from aqueous media. Such honeycomb-structured mesoporous carbonaceous matrix developed approximately 1420.1 m2 g−1 specific surface area and 0.05 cm3 g−1 total pore volume; hence, at the highest concentration, it adsorbed 98.65% of TBT at 1.5 mg L−1 through physical (e.g., pore filling and interparticle diffusion) or chemical (e.g., H-bonding, π-stacking, and metal-adsorbate complex) forces. In addition, it allowed seven adsorption-desorption cycles with 80% efficiency, supporting excellent regenerability. Equally significant, L. sativa germinated 76.6% on plates containing residual solution from sorption testing, validating the hydrochar for environmental bioremediation. Hence, it can advance the field’s prominence in treating TBT by bioadsorption. It can offer stakeholders across agroindustries possibilities to remediate such a compound in aquatic environments, such as water and wastewater. Graphical Abstract: [Figure not available: see fulltext.]en
dc.description.affiliationDepartment of Engineering and Mathematical Sciences College of Agricultural and Veterinary Science São Paulo State University, Jaboticabal
dc.description.affiliationDepartment of Plant Production College of Agricultural and Technological Sciences São Paulo State University (Unesp), Dracena
dc.description.affiliationDepartment of Chemistry Federal University of Mato Grosso, Cuiabá
dc.description.affiliationUnespDepartment of Engineering and Mathematical Sciences College of Agricultural and Veterinary Science São Paulo State University, Jaboticabal
dc.description.affiliationUnespDepartment of Plant Production College of Agricultural and Technological Sciences São Paulo State University (Unesp), Dracena
dc.identifierhttp://dx.doi.org/10.1007/s13399-023-04365-9
dc.identifier.citationBiomass Conversion and Biorefinery.
dc.identifier.doi10.1007/s13399-023-04365-9
dc.identifier.issn2190-6823
dc.identifier.issn2190-6815
dc.identifier.scopus2-s2.0-85160260747
dc.identifier.urihttp://hdl.handle.net/11449/249987
dc.language.isoeng
dc.relation.ispartofBiomass Conversion and Biorefinery
dc.sourceScopus
dc.subjectBioremediation
dc.subjectHazardous organic compound
dc.subjectMunicipal solid waste
dc.subjectPhenyl-urea herbicide
dc.subjectPorous material
dc.titleAdsorption of tebuthiuron on hydrochar: structural, kinetic, isothermal, and mechanistic modeling, and ecotoxicological validation of remediative treatment of aqueous systemen
dc.typeArtigo
unesp.departmentEngenharia Rural - FCAVpt

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Jaboticabal - FCAV - Faculdade de Ciências Agrárias e Veterinárias