We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Photocatalytic Generation of Singlet Oxygen by Graphitic Carbon Nitride for Antibacterial Applications
Summary
This study developed graphitic carbon nitride photocatalysts for generating singlet oxygen as an antimicrobial agent, evaluating their effectiveness against pathogens in water treatment and assessing potential for co-degradation of microplastics.
Carbon-based functional nanocomposites have emerged as potent antimicrobial agents and can be exploited as a viable option to overcome antibiotic resistance of bacterial strains. In the present study, graphitic carbon nitride nanosheets are prepared by controlled calcination of urea. Spectroscopic measurements show that the nanosheets consist of abundant carbonyl groups and exhibit apparent photocatalytic activity under UV photoirradiation towards the selective production of singlet oxygen. Therefore, the nanosheets can effectively damage the bacterial cell membranes and inhibit the growth of bacterial cells, such as Gram-negative Escherichia coli, as confirmed in photodynamic, fluorescence microscopy, and scanning electron microscopy measurements. The results from this research highlight the unique potential of carbon nitride derivatives as potent antimicrobial agents.
Sign in to start a discussion.
More Papers Like This
Sustainability-driven photocatalysis: oxygen-doped g-C3N4 for organic contaminant degradation
This paper is not about microplastics. It discusses oxygen-doped graphitic carbon nitride as a photocatalyst for degrading organic contaminants in water, focusing on the material's enhanced charge carrier properties. While photocatalytic degradation could theoretically be applied to plastic pollutants, this study addresses general organic contaminant removal rather than microplastic pollution.
Graphitic carbon nitride (g-C3N4) as an emerging photocatalyst for sustainable environmental applications: a comprehensive review
This review covers graphitic carbon nitride, a material that can break down pollutants using light energy through a process called photocatalysis. While not directly about microplastics, this technology could potentially be applied to degrade microplastics in water using sunlight. The review discusses how the material works, its current applications for cleaning up environmental pollution, and future directions for this sustainable technology.
Efficient Photocatalytic H2O2 Production Ability of a Novel Graphitic Carbon Nitride/Carbon Composites under Visible Light
Researchers developed a novel graphitic carbon nitride/carbon composite synthesized from microplastics and melamine that achieves high-rate photocatalytic hydrogen peroxide production under visible light, demonstrating a way to upcycle plastic waste into useful photocatalysts.
Photodegradation of microplastics through nanomaterials: Insights into photocatalysts modification and detailed mechanisms
This review explores how nanomaterial-enhanced photocatalysts can break down microplastics that conventional water treatment fails to remove. The paper details key strategies like element doping and heterojunction construction that improve degradation efficiency, and explains the underlying mechanisms involving free radical formation and singlet oxygen oxidation.
Defect Engineered 2D Graphitic Carbon Nitride for Photochemical, (Bio)Electrochemical, and Microplastic Remediation Advancements
This review examines defect-engineered two-dimensional graphitic carbon nitride materials and their applications in photochemical reactions, bioelectrochemical systems, and microplastic remediation. Defect engineering was shown to substantially improve the photocatalytic performance of these materials for breaking down environmental contaminants including microplastics.