Autor segons l'article: Ikram M; Muhammad Khan A; Haider A; Haider J; Naz S; Ul-Hamid A; Shahzadi A; Nabgan W; Shujah T; Shahzadi I; Ali S
Departament: Enginyeria Química
Autor/s de la URV: Nabgan, Walid
Paraules clau: Photocatalytic activity zno tio2 silver lanthanum graphene fabrication extract dye degradation calcium-oxide
Resum: 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.
Àrees temàtiques: Química Interdisciplinar General chemistry General chemical engineering Engenharias ii Ciências agrárias i Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all)
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: walid.nabgan@urv.cat
Identificador de l'autor: 0000-0001-9901-862X
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://pubs.acs.org/doi/10.1021/acsomega.2c02790
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Acs Omega. 7 (32): 28459-28470
Referència 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 de l'article: 10.1021/acsomega.2c02790
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications