Upconversion nanoparticles (UCNPs) exhibit intriguing luminescent properties, rendering them valuable assets in diverse fields such as bioimaging, sensing, and therapeutics. Nevertheless, the potential toxicological effects of UCNPs necessitate thorough investigation to ensure their safe utilization. This review aims to provide a detailed analysis

Photocatalysis offers a sustainable approach to addressing/tackling/mitigating environmental challenges through the utilization/employment/implementation of semiconductor materials. However, conventional photocatalysts often suffer from limited efficiency due to factors such as/issues including/hindrances like rapid charge recombination and low lig