Recent Trends and Advances of Co3O4 Nanoparticles in Environmental Remediation of Bacteria in Wastewater

Abstract

Antibiotic resistance is a formidable global threat. Wastewater is a contributing factor to the prevalence of antibiotic-resistant bacteria and genes in the environment. There is increased interest evident from research trends in exploring nanoparticles for the remediation of antibiotic-resistant bacteria. Cobalt oxide (Co3O4) nanoparticles have various technological, biomedical, and environmental applications. Beyond the environmental remediation applications of degradation or adsorption of dyes and organic pollutants, there is emerging research interest in the environmental remediation potential of Co3O4 nanoparticles and its nanocomposites on antibiotic-resistant and/or pathogenic bacteria. This review focuses on the recent trends and advances in remediation using Co3O4 nanoparticles and its nanocomposites on antibiotic-resistant or pathogenic bacteria from wastewater. Additionally, challenges and future directions that need to be addressed are discussed.

Sustainable and Efficacy Approach of Green Synthesized Cobalt Oxide (Co3O4) Nanoparticles and Evaluation of Their Cytotoxicity Activity on Cancerous Cells

“…Owing to their large surface areas, unusual adsorptive characteristics, and rapid diffusivities, nanosized crystalline metal oxides have attracted increasing attention in recent years. P-type semiconductor cobalt oxide nanoparticles (Co 3 O 4 NPs) are transition metal oxides that can exist in various oxidation states, including Co 2+ , Co 3+ , and Co 4+ [ 1 , 2 , 3 , 4 ]. Among them, the spinel structure is the most stable form of Co 3 O 4 NPs, which can be used in a wide range of applications, including lithium-ion batteries, gas sensors, supercapacitors, solar selective absorbers, drug delivery, anticancer and antimicrobial agents, water remediation, and photocatalysis [ 2 , 5 , 6 , 7 , 8 , 9 , 10 ].…”

Pseudomonas aeruginosa and related antibiotic resistance genes as indicators for wastewater treatment

“…Cobalt oxide (Co 3 O 4 ) nanoparticles have diverse applications in engineering, biomedical, and environmental fields. Co 3 O 4 nanoparticles and their nanocomposites are utilized to eliminate antibiotic-resistant bacteria in wastewater [ 69 ]. Nano-Ag has become increasingly popular as an antibacterial nanomaterial due to its potent and broad antibacterial activity, safety, and ease of production, making it the preferred material for water decontamination [ 70 ].…”

Synthesis of Co₃O₄ Nanoparticles through Solution Combustion Method and Their Applications: A Review

“…Such as, Co3O4 nanoparticles exhibit promising capabilities in environmental remediation. Their application in wastewater treatment and pollutant removal displays their potential for addressing environmental challenges [31,8]. Co3O4 nanoparticles exhibit sensitivity to various analyst, making them suitable for sensor applications.…”