title: Photocatalytic materials and technologies for air purification.
abstract: Since there is increasing concern for the impact of air quality on human health, the present work surveys the materials and technologies for air purification using photocatalytic materials. The coverage includes (1) current photocatalytic materials for the decomposition of chemical contaminants and disinfection of pathogens present in air and (2) photocatalytic air purification systems that are used currently and under development. The present work focuses on five main themes. First, the mechanisms of photodegradation and photodisinfection are explained. Second, system designs for photocatalytic air purification are surveyed. Third, the photocatalytic materials used for air purification and their characteristics are considered, including both conventional and more recently developed photocatalysts. Fourth, the methods used to fabricate these materials are discussed. Fifth, the most significant coverage is devoted to materials design strategies aimed at improving the performance of photocatalysts for air purification. The review concludes with a brief consideration of promising future directions for materials research in photocatalysis.
authors.affiliation: School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia. Electronic address: hangjuan.ren@student.unsw.edu.au.
authors.forename: Hangjuan
authors.initials: H
authors.lastname: Ren
authors.affiliation: School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia.
authors.forename: Pramod
authors.initials: P
authors.lastname: Koshy
authors.affiliation: School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia.
authors.forename: Wen-Fan
authors.initials: WF
authors.lastname: Chen
authors.affiliation: School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia.
authors.forename: Shaohua
authors.initials: S
authors.lastname: Qi
authors.affiliation: School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia.
authors.forename: Charles Christopher
authors.initials: CC
authors.lastname: Sorrell
mesh_terms: D000393:Air Pollutants / Q000737:chemistry*; D000397:Air Pollution; D002384:Catalysis; D002947:Cities; D004203:Disinfection / Q000379:methods*; D008670:Metals / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry; D055668:Photochemical Processes; D010782:Photolysis; D020349:Surface Plasmon Resonance; D014025:Titanium / Q000737:chemistry; D015034:Zinc Oxide / Q000737:chemistry
chemical_list: D000393:Air Pollutants; D008670:Metals; D010087:Oxides; D014025:Titanium; D015034:Zinc Oxide
keywords: Air purification; Air purification technologies; Photocatalytic materials; Photodegradation; Photodisinfection