Ozone decomposition

Abstract

Catalytic ozone decomposition is of great significance because ozone is a toxic substance commonly found or generated in human environments (aircraft cabins, offices with photocopiers, laser printers, sterilizers). Considerable work has been done on ozone decomposition reported in the literature. This review provides a comprehensive summary of the literature, concentrating on analysis of the physico-chemical properties, synthesis and catalytic decomposition of ozone. This is supplemented by a review on kinetics and catalyst characterization which ties together the previously reported results. Noble metals and oxides of transition metals have been found to be the most active substances for ozone decomposition. The high price of precious metals stimulated the use of metal oxide catalysts and particularly the catalysts based on manganese oxide. It has been determined that the kinetics of ozone decomposition is of first order importance. A mechanism of the reaction of catalytic ozone decomposition is discussed, based on detailed spectroscopic investigations of the catalytic surface, showing the existence of peroxide and superoxide surface intermediates.

A one-pot synthesis of a monolithic Cu2O/Cu catalyst for efficient ozone decomposition

“…[11][12][13] A series of essential catalysts for ozone decomposition have been developed, of which the most active and productive candidates for catalytically converting ozone to oxygen molecules are indeed noble metals and transition metal oxides. 12,14 Transition metal oxide-based catalysts are incredibly efficient from an environmental perspective and simultaneously provide a convenient and affordable way to decompose the ozone molecules. In this regard, transition metal oxides including MnO 2 , [15][16][17] Cu 2 O/CuO, 10,18 Fe 2 O 3 , 19,20 and NiO 21 have been reported as active catalysts.…”

Coupling Filter-Based Thermal Desorption Chemical Ionization Mass Spectrometry with Liquid Chromatography/Electrospray Ionization Mass Spectrometry for Molecular Analysis of Secondary Organic Aerosol

“…Note that gas-phase species, including O 3 , were not removed before introducing aerosols to the heating region, which could lead to artifacts via oxidation at high temperature. 44 We also 16…”

Transition metals-incorporated zeolites as environmental catalysts for indoor air ozone decomposition

“…Thus, Fe reacts with ozone faster than Cu, leading to ozone decomposition. Batakliev et al [2] investigated catalysts based on metals and their oxides in different oxidation levels and found that the catalytic activity of these metal oxides was increased by increasing the metal oxidation state. The catalytic activity degree of a number of elements to the decomposition of ozone was in the order Cu < Ag < Ni < Fe < Au < Pt.…”

“…On the other hand, the transition metals and their oxides have been found to be the most active substances for ozone decomposition [2]. Zeolite is characterized by its ability to participate in ion-exchange reactions [10].…”