Advancement and modification in photoreactor used for degradation processes

Abstract

Degradation of environmental pollutants from air, water, and soil relies on various technologies (chemical reactions, absorption, adsorption filtration, and photocatalysis). By the use of nanotechnology, knowing the characteristic features like high surface-territory-to-volume proportion, that ultimately results in increased reactivity has made them suitable for such processes. The enhanced properties and effectiveness of nanoparticles have built their significant role in contamination control at three stages, namely, sensing of pollutants, source reduction, and degradation of pollutants.Photoreactors are rapidly becoming the choice of scientists for the degradation of pollutants and its management as it employs photochemical oxidation of organic and inorganic pollutants. The efficiency of photoreactor depends upon the selection of right light source having good penetration capacity, oxidation system, which can be optimized for better results. In this way, the nanophotocatalysts have been designed that provides a large reaction surface. © 2020 Elsevier Inc. All rights reserved.