Autor según el artículo: Ikram M; Muhammad Khan A; Haider A; Haider J; Naz S; Ul-Hamid A; Shahzadi A; Nabgan W; Shujah T; Shahzadi I; Ali S
Departamento: Enginyeria Química
Autor/es de la URV: Nabgan, Walid
Palabras clave: Photocatalytic activity zno tio2 silver lanthanum graphene fabrication extract dye degradation calcium-oxide
Resumen: In the current study, a low-cost and straightforward coprecipitation technique was adopted to synthesize CaO and La-doped CS/CaO NPs. Different weight ratios (2 and 4) of La were doped into fixed amounts of CS and CaO. Synthesized samples exhibited outstanding catalytic performance by degrading methylene blue (MB) in a highly efficient manner. The X-ray diffraction technique detected the presence of a cubic phase of CaO and a decrease in crystallite size of the samples with the addition of La. Fourier transform infrared spectroscopy confirmed the presence of the dopant and the base material with functional groups at 712 cm-1. A decrease in the absorption intensity of doped CaO was observed with an increasing amount of dopants La and CS accompanied by a blueshift leading to an increase in the band gap energy from 4.17 to 4.42 eV, as recorded with an ultraviolet-visible spectrophotometer. The presence of dopants (La and CS) and the evaluation of the elemental constitution of Ca and O were supported with the energy-dispersive spectroscopy technique. In an acidic medium, the catalytic activity against the MB dye was reduced (93.8%) for 4% La-doped CS/CaO. For La-doped CS/CaO, vast inhibition domains ranged within 4.15-4.70 and 5.82-8.05 mm against Escherichia coli while 4.15-5.20 and 6.65-13.10 mm against Staphylococcus aureus (S. aureus) at the least and maximum concentrations, correspondingly. In silico molecular docking studies suggested these nanocomposites of chitosan as possible inhibitors against the enoyl-Acyl carrier protein reductase (FabI) from S. aureus.
Áreas temáticas: Química Interdisciplinar General chemistry General chemical engineering Engenharias ii Ciências agrárias i Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all)
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: walid.nabgan@urv.cat
Identificador del autor: 0000-0001-9901-862X
Fecha de alta del registro: 2024-07-20
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://pubs.acs.org/doi/10.1021/acsomega.2c02790
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Acs Omega. 7 (32): 28459-28470
Referencia de l'ítem segons les normes APA: Ikram M; Muhammad Khan A; Haider A; Haider J; Naz S; Ul-Hamid A; Shahzadi A; Nabgan W; Shujah T; Shahzadi I; Ali S (2022). Facile Synthesis of La-and Chitosan-Doped CaO Nanoparticles and Their Evaluation for Catalytic and Antimicrobial Potential with Molecular Docking Studies. Acs Omega, 7(32), 28459-28470. DOI: 10.1021/acsomega.2c02790
DOI del artículo: 10.1021/acsomega.2c02790
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2022
Tipo de publicación: Journal Publications
Repositori URV