Author, as appears in the article.: Rafique A; Ikram M; Haider A; Ul-Hamid A; Naz S; Nabgan W; Haider J; Shahzadi I
Department: Enginyeria Química
URV's Author/s: Nabgan, Walid
Keywords: Quantum dots Photocatalytic activity Co-precipitation Catalytic activity removal nanosheets nanoparticles methylene-blue light extract co-precipitation catalytic-reduction catalytic activity biosynthesis
Abstract: In present study, control sized cadmium sulphide (CdS) quantum dots (QDs) and cellulose nanocrystals grafted polyvinylpyrrolidone (CNC-g-PVP) doped CdS QDs were synthesized via co-precipitation. The suggested pathway is fruitful in throwing out organic pollutants like methylene blue (MB) from industrial water and bactericidal applications. A series of characterization techniques were used to determine the structural, optical and morphological qualities of prepared samples. The X-ray diffraction (XRD) pattern verified hexagonal structure with no significant change occurring in the spectrum upon doping (2, 4, and 6 %). The UV–vis spectrophotometer describes blueshift in absorption pattern, resulting in an increase in band gap energy (Eg) upon doping. Catalytic activity (CA) against MB in basic and neutral medium demonstrated remarkable results compared with the acidic medium. Furthermore, bactericidal potential of doped sample (6 %) exhibited the significantly higher inhibition zones of 5.25 mm and 4.05 mm against Staphylococcus aureus (S. aureus) or Gram-positive (G+ve) and Escherichia coli (E. coli) or Gram-negative (G-ve), respectively. In silico predictions for these doped QDs were performed against selected enzyme targets (i.e. DNA gyrase and FabI) to unveil the mystery governing these bactericidal activities.
Thematic Areas: Zootecnia / recursos pesqueiros Structural biology Química Polymer science Planejamento urbano e regional / demografia Odontología Nutrição Molecular biology Medicine (miscellaneous) Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Interdisciplinar Geociências General energy Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Energy (miscellaneous) Economics and econometrics Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry, applied Biotecnología Biodiversidade Biochemistry & molecular biology Biochemistry 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: 2022-11-12
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0141813022012624
Papper original source: International Journal Of Biological Macromolecules. 214 264-277
APA: Rafique A; Ikram M; Haider A; Ul-Hamid A; Naz S; Nabgan W; Haider J; Shahzadi I (2022). Dye degradation, antibacterial activity and molecular docking analysis of cellulose/polyvinylpyrrolidone-doped cadmium sulphide quantum dots. International Journal Of Biological Macromolecules, 214(), 264-277. DOI: 10.1016/j.ijbiomac.2022.06.058
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1016/j.ijbiomac.2022.06.058
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV