title: Photocatalytic decomposition on nano-TiO₂: destruction of chloroaromatic compounds.
abstract: Photocatalysis is applied increasingly in addressing and solving environmental and energy-related problems. Especially the TiO₂-derived catalysts attract attention because of their catalytic efficiency, wide range of applications, ease in use, and low cost (it costs about 150 Yuan a kilogram in China). This review first describes the principles of photocatalytic destruction by semiconductors and then focuses on degradation rates and reaction mechanisms in a variety of photocatalytic uses of modified TiO(2). Finally, these concepts are illustrated by selected examples relating to the photocatalytic degradation of organic persistent pollutants, such as polychlorinated benzenes (PCBz), biphenyls (PCB) and dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). And some approaches towards industrial application are analyzed.
authors.affiliation: State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Sheng-Yong
authors.initials: SY
authors.lastname: Lu
authors.forename: Di
authors.initials: D
authors.lastname: Wu
authors.forename: Qiu-Lin
authors.initials: QL
authors.lastname: Wang
authors.forename: Jianhua
authors.initials: J
authors.lastname: Yan
authors.forename: Alfons G
authors.initials: AG
authors.lastname: Buekens
authors.forename: Ke-Fa
authors.initials: KF
authors.lastname: Cen
mesh_terms: D001572:Benzofurans / Q000737:chemistry; D002384:Catalysis; D004785:Environmental Pollutants / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods; D006844:Hydrocarbons, Cyclic / Q000737:chemistry*; D017665:Hydroxyl Radical; D053768:Metal Nanoparticles / Q000737:chemistry*; D055668:Photochemical Processes; D011078:Polychlorinated Biphenyls / Q000737:chemistry; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000737:chemistry; D012666:Semiconductors; D014025:Titanium / Q000737:chemistry*
chemical_list: D001572:Benzofurans; D004785:Environmental Pollutants; D006844:Hydrocarbons, Cyclic; D000072317:Polychlorinated Dibenzodioxins; C009495:titanium dioxide; D017665:Hydroxyl Radical; C023614:dibenzofuran; D014025:Titanium; D011078:Polychlorinated Biphenyls