Experimental and DFT study of GO-decorated CaO quantum dots for catalytic dye degradation and bactericidal potential

Abstract

This research lays the groundwork for preparing graphene oxide (GO)-doped CaO nanocomposites for efficient antibacterial potential and dye degradation. The study aimed to reduce the recombination rate of the electron hole (e−/h+) of CaO and improve charge transfer. This issue can be minimized by doping high-surface area GO into CaO quantum dots (QDs). Herein, the one-pot co-precipitation technique has prepared various concentrations (1, 3, and 5 wt%) of GO-doped CaO. Characterization techniques were used to investigate optical, elemental analysis, microstructural, functional, and morphological properties. The addition of GO into QDs showed excellent catalytic activity (CA) to control sample CaO against methylene blue (MB) in basic and acidic media compared to the neutral media. The synergistic effect of morphological alternation attributed to an increase in the mechanism of CA upon doping. Various concentrations of GO to QDs promised remarkable bactericidal potency against Escherichia coli.

Dye Degradation, Antimicrobial Activity, and Molecular Docking Analysis of Samarium‐Grafted Carbon Nitride Doped‐Bismuth Oxobromide Quantum Dots

“…[ 77 ] The better degradation was noted in an acidic environment, ascribed to the raised formation of H + ions available for desorption on the NCs’ surface. [ 78 ] In a basic environment, CA demonstrated good results according to increased electrostatic interaction between the catalysts (negatively charged) and dye (positively charged). [ 79 ] The inhibitory impact appears to be more significant at pH 7, possibly attributable to two primary forms of RhB in water zwitter ionic (RhB±) and cationic (RhB+).…”

A critical review on metal-organic frameworks (MOFs) based nanomaterials for biomedical applications: Designing, recent trends, challenges, and prospects

“…The reduced toxicity of NMs can be attributed to their unique physicochemical properties, including their small size and large surface area, which enhance biocompatibility. NMs are more hydrophobic than conventional bone grafts [ 56 , 57 ]. Primarily, NM's hydrophobic nature facilitates favorable interactions with their surroundings.…”

Metal/Covalent Organic Framework Encapsulated Lead-Free Halide Perovskite Hybrid Nanocatalysts: Multifunctional Applications, Design, Recent Trends, Challenges, and Prospects

“…This diversity allows researchers to create MOFs with required pore geometries, chemical functionalities, and pore sizes for desired applications. This ability to modify MOF structures opens new possibilities for tackling various challenges in several fields and continuing to be an active zone of research …”