Articles producció científica> Enginyeria Química

Efficiency of a novel nitrogen-doped Fe3O4 impregnated biochar (N/Fe3O4@BC) for arsenic (III and V) removal from aqueous solution: Insight into mechanistic understanding and reusability potential

  • Identification data

    Identifier: imarina:9282880
    Handle: https://hdl.handle.net/20.500.11797/imarina9282880
    Authors:
    Ali, HamidAhmed, SaeedHsini, AbdelghaniKizito, SimonNaciri, YassineDjellabi, RidhaAbid, MuhammadRaza, WaseemHassan, NoorRehman, Muhammad Saif UrKhan, Asif JamalKhan, MuhammadUl Haq, Muhammad ZiaAboagye, DominicIrshad, Muhammad KashifHassan, MunawarHayat, AsifWu, BoQadeer, AbdulAjmal, Zeeshan
    Abstract:
    Worldwide, arsenic contamination has become a matter of extreme importance owing to its potential toxic, carcinogenic and mutagenic impact on human health and the environment. The magnetite-loaded biochar has received increasing attention for the removal of arsenic (As) in contaminated water and soil. The present study reports a facile synthesis, characterization and adsorption characteristics of a novel magnetite impregnated nitrogen-doped hybrid biochar (N/Fe3O4@BC) for efficient arsenate, As(V) and arsenite, As(III) removal from aqueous environment. The as-synthesized material (N/Fe3O4@BC) characterization via XRD, BET, FTIR, SEM/EDS clearly revealed magnetite (Fe3O4) impregnation onto biochar matrix. Furthermore, the adsorbent (N/Fe3O4@BC) selectivity results showed that such a combination plays an important role in targeted molecule removal from aqueous environments and compensates for the reduced surface area. The maximum monolayer adsorption (Qmax) of developed adsorbent (N/Fe3O4@BC) (18.15 mg/g and 9.87 mg/g) was significantly higher than that of pristine biochar (BC) (9.89 & 8.12 mg/g) and magnetite nano-particles (MNPs) [7.38 & 8.56 mg/g] for both As(III) and As(V), respectively. Isotherm and kinetic data were well fitted by Langmuir (R2 = 0.993) and Pseudo first order model (R2 = 0.992) thereby indicating physico-chemical sorption as a rate-limiting step. The co-anions (PO43-) effect was more significant for both As(III) and As (V) removal owing to similar outer electronic structure. Mechanistic insights (pH and FTIR spectra) further demonstrated the remarkable contribution of surface groups (OH–, –NH2 and –COOH), electrostatic attraction (via H- bonds), surface complexation and ion exchange followed by external mass transfer diffusion and As(III) oxidation i

  • Others:

    Author, as appears in the article.: Ali, Hamid; Ahmed, Saeed; Hsini, Abdelghani; Kizito, Simon; Naciri, Yassine; Djellabi, Ridha; Abid, Muhammad; Raza, Waseem; Hassan, Noor; Rehman, Muhammad Saif Ur; Khan, Asif Jamal; Khan, Muhammad; Ul Haq, Muhammad Zia; Aboagye, Dominic; Irshad, Muhammad Kashif; Hassan, Munawar; Hayat, Asif; Wu, Bo; Qadeer, Abdul; Ajmal, Zeeshan
    Department: Enginyeria Química
    URV's Author/s: Aboagye, Dominic / Djellabi, Ridha
    Keywords: Water contamination Engineered adsorbents Desorption Biochar Arsenic Adsorption
    Abstract: Worldwide, arsenic contamination has become a matter of extreme importance owing to its potential toxic, carcinogenic and mutagenic impact on human health and the environment. The magnetite-loaded biochar has received increasing attention for the removal of arsenic (As) in contaminated water and soil. The present study reports a facile synthesis, characterization and adsorption characteristics of a novel magnetite impregnated nitrogen-doped hybrid biochar (N/Fe3O4@BC) for efficient arsenate, As(V) and arsenite, As(III) removal from aqueous environment. The as-synthesized material (N/Fe3O4@BC) characterization via XRD, BET, FTIR, SEM/EDS clearly revealed magnetite (Fe3O4) impregnation onto biochar matrix. Furthermore, the adsorbent (N/Fe3O4@BC) selectivity results showed that such a combination plays an important role in targeted molecule removal from aqueous environments and compensates for the reduced surface area. The maximum monolayer adsorption (Qmax) of developed adsorbent (N/Fe3O4@BC) (18.15 mg/g and 9.87 mg/g) was significantly higher than that of pristine biochar (BC) (9.89 & 8.12 mg/g) and magnetite nano-particles (MNPs) [7.38 & 8.56 mg/g] for both As(III) and As(V), respectively. Isotherm and kinetic data were well fitted by Langmuir (R2 = 0.993) and Pseudo first order model (R2 = 0.992) thereby indicating physico-chemical sorption as a rate-limiting step. The co-anions (PO43-) effect was more significant for both As(III) and As (V) removal owing to similar outer electronic structure. Mechanistic insights (pH and FTIR spectra) further demonstrated the remarkable contribution of surface groups (OH–, –NH2 and –COOH), electrostatic attraction (via H- bonds), surface complexation and ion exchange followed by external mass transfer diffusion and As(III) oxidation into As(V) by (N/Fe3O4@BC) reactive oxygen species. Moreover, successful desorption was achieved at varying rates up to 7th regeneration cycle thereby showing (N/Fe3O4@BC) potential practical application. Thus, this work provides a novel insight for the fabrication of novel magnetic biochar for As removal from contaminated water in natural, engineering and environmental settings.
    Thematic Areas: Química Odontología Medicina ii Medicina i Materiais General chemistry General chemical engineering Farmacia Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all) Biotecnología Biodiversidade Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author identifier: 0000-0002-1475-5565
    Author's mail: dominic.aboagye@estudiants.urv.cat dominic.aboagye@estudiants.urv.cat
    Record's date: 2024-10-12
    Papper version: info:eu-repo/semantics/publishedVersion
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Arabian Journal Of Chemistry. 15 (11): 104209-
    APA: Ali, Hamid; Ahmed, Saeed; Hsini, Abdelghani; Kizito, Simon; Naciri, Yassine; Djellabi, Ridha; Abid, Muhammad; Raza, Waseem; Hassan, Noor; Rehman, Muha (2022). Efficiency of a novel nitrogen-doped Fe3O4 impregnated biochar (N/Fe3O4@BC) for arsenic (III and V) removal from aqueous solution: Insight into mechanistic understanding and reusability potential. Arabian Journal Of Chemistry, 15(11), 104209-. DOI: 10.1016/j.arabjc.2022.104209
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications

  • Keywords:

    Chemical Engineering (Miscellaneous),Chemistry (Miscellaneous),Chemistry, Multidisciplinary
    Water contamination
    Engineered adsorbents
    Desorption
    Biochar
    Arsenic
    Adsorption
    Química
    Odontología
    Medicina ii
    Medicina i
    Materiais
    General chemistry
    General chemical engineering
    Farmacia
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Ciência de alimentos
    Chemistry, multidisciplinary
    Chemistry (miscellaneous)
    Chemistry (all)
    Chemical engineering (miscellaneous)
    Chemical engineering (all)
    Biotecnología
    Biodiversidade
    Astronomia / física

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