Heterogeneous water phase catalysis as an environmental application: a review

• Published in: Chemosphere (Oxford) Vol. 48; no. 10; pp. 1047 - 1060
• Main Authors: Pirkanniemi, Kari, Sillanpää, Mika
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.09.2002; Elsevier
• Subjects: AOP; Applied sciences; Biological and physicochemical phenomena; Catalysis; Conservation of Natural Resources; Environmental; Exact sciences and technology; General purification processes; Hydrogen - chemistry; Hydroprocessing; Natural water pollution; Oxidation; Oxidation-Reduction; Pollution; Waste Disposal, Fluid; Wastewater; Wastewaters; Water treatment and pollution; Environmental; AOP; Oxidation; Catalysis; Hydroprocessing; Wastewater; Sonochemical reaction; Drinking water treatment; Catalytic reaction; Review; Chemical degradation; Hydrogenation; Heterogeneous catalysis; Decontamination; Reaction mechanism; Fenton reaction; Physicochemical purification; Water pollution; Waste water purification; Catalyst; Photochemical degradation
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/S0045-6535(02)00168-6

Catalytic water phase processes as an environmental application is a relatively novel subject with tremendous potential in the near future. This review of 120 references presents the wide scale of heterogeneous water phase applications studied mainly within past five years. Both oxidation and hydrogenation processes are included as well as TiO 2 assisted photocatalysis. According to the references, heterogeneous catalysis is developing rapidly. New bimetallic catalysts and supports with higher surface area have improved catalytic efficiency in both oxidation and hydrogenation processes. It also seems that study on use of some waste materials such as red mud as catalyst is a very progressive field. On the whole, the chemical aspects are pretty well known, but the catalyst durability, and in many cases activity as well, has to be improved.