Articles producció científica> Enginyeria Química

Fabrication of La-Doped MoS2 Nanosheets with Tuned Bandgap for Dye Degradation and Antimicrobial Activities, Experimental and Computational Investigations

  • Identification data

    Identifier: imarina:9295585
    Authors:
    Ikram, MIlyas, BHaider, AHaider, JUl-Hamid, AShahzadi, AGoumri-Said, SKanoun, MBNabgan, WMahmood, A
    Abstract:
    The development of efficient catalysts with a large number of active sites, tunable bandgap, and large surface area has been very challenging. In addition, a significant bottleneck in the application of catalysts for water treatment is their dissolution under extreme conditions, such as highly acidic or highly alkaline conditions that lead to poor application of the reported materials in real-world applications. In this study, the lanthanum (La)-doped molybdenum disulfide (MoS2) nanosheets are reported for efficient breakdown of toxic pollutants from wastewater under a wide pH range from strongly alkaline to strongly acidic solutions. The La-MoS2 nanosheets (NSs) are prepared by a facile hydrothermal approach using a two-step methodology. A redshift is observed upon La doping, indicating that the bandgap is lowered after La doping in MoS2. The changes in bandgap and electronic structure are further investigated using the density functional theory (DFT), which reveal that doping of La introduces new states within the bandgap region, allowing for further induced energy transitions. The La-MoS2, having a doping concentration of 2%, exhibits the highest catalytic activity against methylene blue (MB) in neutral, acidic, and alkaline solutions, as well as substantial inhibitory activity for bacterial strains such as Escherichia coli (E. coli). In summary, the modified catalyst provides a pathway to design highly efficient catalysts for all pH range water treatment as well as good activity against microbes.
  • Others:

    Author, as appears in the article.: Ikram, M; Ilyas, B; Haider, A; Haider, J; Ul-Hamid, A; Shahzadi, A; Goumri-Said, S; Kanoun, MB; Nabgan, W; Mahmood, A
    Department: Enginyeria Química
    URV's Author/s: Nabgan, Walid
    Keywords: Transition-metals Nanosheet Molybdenum disulfide (mos2) Lanthanum (la) Hrtem Dye degradation strain silver nanosheet monolayer molybdenum disulfide (mos2) lanthanum (la) lanthanum hrtem extract catalyst
    Abstract: The development of efficient catalysts with a large number of active sites, tunable bandgap, and large surface area has been very challenging. In addition, a significant bottleneck in the application of catalysts for water treatment is their dissolution under extreme conditions, such as highly acidic or highly alkaline conditions that lead to poor application of the reported materials in real-world applications. In this study, the lanthanum (La)-doped molybdenum disulfide (MoS2) nanosheets are reported for efficient breakdown of toxic pollutants from wastewater under a wide pH range from strongly alkaline to strongly acidic solutions. The La-MoS2 nanosheets (NSs) are prepared by a facile hydrothermal approach using a two-step methodology. A redshift is observed upon La doping, indicating that the bandgap is lowered after La doping in MoS2. The changes in bandgap and electronic structure are further investigated using the density functional theory (DFT), which reveal that doping of La introduces new states within the bandgap region, allowing for further induced energy transitions. The La-MoS2, having a doping concentration of 2%, exhibits the highest catalytic activity against methylene blue (MB) in neutral, acidic, and alkaline solutions, as well as substantial inhibitory activity for bacterial strains such as Escherichia coli (E. coli). In summary, the modified catalyst provides a pathway to design highly efficient catalysts for all pH range water treatment as well as good activity against microbes.
    Thematic Areas: Química Mechanics of materials Mechanical engineering Materials science, multidisciplinary Materiais Interdisciplinar Chemistry, multidisciplinary Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: walid.nabgan@urv.cat
    Author identifier: 0000-0001-9901-862X
    Record's date: 2024-08-03
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://onlinelibrary.wiley.com/doi/full/10.1002/admi.202202404
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Advanced Materials Interfaces. 10 (14):
    APA: Ikram, M; Ilyas, B; Haider, A; Haider, J; Ul-Hamid, A; Shahzadi, A; Goumri-Said, S; Kanoun, MB; Nabgan, W; Mahmood, A (2023). Fabrication of La-Doped MoS2 Nanosheets with Tuned Bandgap for Dye Degradation and Antimicrobial Activities, Experimental and Computational Investigations. Advanced Materials Interfaces, 10(14), -. DOI: 10.1002/admi.202202404
    Article's DOI: 10.1002/admi.202202404
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2023
    Publication Type: Journal Publications
  • Keywords:

    Chemistry, Multidisciplinary,Materials Science, Multidisciplinary,Mechanical Engineering,Mechanics of Materials
    Transition-metals
    Nanosheet
    Molybdenum disulfide (mos2)
    Lanthanum (la)
    Hrtem
    Dye degradation
    strain
    silver
    nanosheet
    monolayer
    molybdenum disulfide (mos2)
    lanthanum (la)
    lanthanum
    hrtem
    extract
    catalyst
    Química
    Mechanics of materials
    Mechanical engineering
    Materials science, multidisciplinary
    Materiais
    Interdisciplinar
    Chemistry, multidisciplinary
    Astronomia / física
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