title: High photocatalytic capability of self-assembled nanoporous WO3 with preferential orientation of (002) planes.
abstract: Self-assembled nanoporous tungsten oxide (WO3) with preferential orientation (002) planes was successfully synthesized on the tungsten sheet by anodization in a 0.2 wt % NaF and 0.3% (V/V) HF mixture solution in a 1:1 ratio. The pores, of a highly ordered self-assembled structure, had an average size of approximately 70 nm. X-ray diffraction identified a monoclinic WO3 structure and fine preferential orientation of (002) planes. A maximum photoconversion efficiency of 17.2% was obtained for the self-assembled nanoporous WO3 under high-pressure mercury lamp illumination. The photocatalytic (PC) degradation of pentachlorophenol (PCP) in aqueous solution using the self-assembled nanoporous WO3 photocatalyst, performed under both high-pressure mercury lamp and Xe lamp illumination, showed more excellent PC capability than WO3 film and TiO2 nanotube arrays.
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Dalian University of Technology), Ministry of Education, School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian116024, China.
authors.forename: Yafeng
authors.initials: Y
authors.lastname: Guo
authors.forename: Xie
authors.initials: X
authors.lastname: Quan
authors.forename: Na
authors.initials: N
authors.lastname: Lu
authors.forename: Huimin
authors.initials: H
authors.lastname: Zhao
authors.forename: Shuo
authors.initials: S
authors.lastname: Chen
mesh_terms: D052918:Environmental Restoration and Remediation / Q000379:methods*; D049329:Nanostructures / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D010416:Pentachlorophenol / Q000737:chemistry; D010777:Photochemistry; D014414:Tungsten / Q000737:chemistry*; D014466:Ultraviolet Rays; D014978:Xenon / Q000737:chemistry
chemical_list: D010087:Oxides; D014978:Xenon; C511604:tungsten oxide; D010416:Pentachlorophenol; D014414:Tungsten