Photocatalysis: Oxidative Processes in Water Treatment

Abstract

The efficiency of various homogeneous and heterogeneous systems photocatalytic processes destructive oxidation of organic compounds of different classes is considered. It is shown that photocatalytic methods can significantly increase the speed and depth (up to complete mineralization) of decomposition processes of toxicants. The use of photocatalysis (PC) in the creation of low-power water treatment technologies is a promising direction in addressing environmental problems of the hydrosphere.

The high photocatalytic activity and reduced band gap energy of La and Mn co-doped BiFeO3/graphene nanoplatelet (GNP) nanohybrids

“…The hydroxyl radicals and superoxides help in removing organic pollutants from water. 7 A low recombination of charge carriers, tunable band gap for promoting the charge efficiently and a high surface area to absorb a broad spectrum of radiation are the essential requirements for an enhanced photocatalytic activity. 8,9 Various metal oxide semiconductors 10 are commonly used as photocatalyst materials.…”

Calculation and 3d Model of the Photocatalytic Panel Reactor for Dyes and Phenol Degradation

“…The main advantage of the use of these radicals is the high and non-selective reactivity. AOPs have the following advantages 7,8 : fast kinetics; high potential for full mineralization of highly toxic organic impurities; no secondary solid or liquid waste. At the same time, AOPs also have certain disadvantages.…”

Transparent CaF2 surface crystallized CaO–2B2O3 glass possessing efficient photocatalytic and antibacterial properties

“…It is mainly caused by organic and bacterial pollutants, which is a potential threat for living organisms . Photocatalysis process is a promising and efficient approach for the removal of water pollutants . The photo‐induced degradation of organic pollutants and microbes for the treatment of water has been performed by many researchers .…”

“…1,2 Photocatalysis process is a promising and efficient approach for the removal of water pollutants. 3,4 The photo-induced degradation of organic pollutants and microbes for the treatment of water has been performed by many researchers. [5][6][7] Various promising photocatalysts like TiO 2 , ZnO etc have been investigated either in powder form 8,9 or in the form of films or coatings on some substrate.…”