We have demonstrated the fabrication and proficient photocatalytic execution of nanocomposite silver nanoparticles and carbon nanospheres (AgNPs/CNSs). The prepared AgNPs/CNSs, AgNPs, and CNS were investigated on the basis of their capability to decompose organic contaminants under UV light. Every as-synthesized material was effective photocatalyst for the photodecomposition of an organic pollutants solution. Moreover, AgNPs/CNSs exhibited the best photocatalytic activity because nanocomposite shows several advantages (lower bandgap, extended surface area) over the use of bare AgNPs and CNSs. A small bandgap increases the absorbing and utilizing ability of the UV light. In addition, the extended surface area facilitates a more active site for the adsorption of reactive molecules. The time-dependent degradation rate of the pollutant dye methylene blue (MB) are: AgNPs/CNSs (95.22%), AgNPs (80.19%), and CNSs (73.18%) under UV light irradiation for 60 minutes. Under similar experimental conditions, the photocatalytic degradation efficiency of AgNPs/CNSs toward rhodamine B (RhB) and methyl orange (MO) dye was evaluated. In the reusability test, no substantial loss of activity or structural composition was observed after five consecutive runs. As a result, AgNPs/CNSs nanocomposite exhibits higher stability up to five repeated cycles.

Photocatalytic degradation of organic dyes using silver nanoparticles and carbon nanospheres nanocomposite in the presence of UV light irradiation

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.