title: Structural formation and photocatalytic activity of magnetron sputtered titania and doped-titania coatings.
abstract: Titania and doped-titania coatings can be deposited by a wide range of techniques; this paper will concentrate on magnetron sputtering techniques, including "conventional" reactive co-sputtering from multiple metal targets and the recently introduced high power impulse magnetron sputtering (HiPIMS). The latter has been shown to deliver a relatively low thermal flux to the substrate, whilst still allowing the direct deposition of crystalline titania coatings and, therefore, offers the potential to deposit photocatalytically active titania coatings directly onto thermally sensitive substrates. The deposition of coatings via these techniques will be discussed, as will the characterisation of the coatings by XRD, SEM, EDX, optical spectroscopy, etc. The assessment of photocatalytic activity and photoactivity through the decomposition of an organic dye (methylene blue), the inactivation of E. coli microorganisms and the measurement of water contact angles will be described. The impact of different deposition technologies, doping and co-doping strategies on coating structure and activity will be also considered.
authors.affiliation: Surface Engineering Group, Dalton Research Institute, Manchester Metropolitan University, Manchester M1 5GD, UK. peter.kelly@mmu.ac.uk.
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Kelly
authors.affiliation: Surface Engineering Group, Dalton Research Institute, Manchester Metropolitan University, Manchester M1 5GD, UK. g.west@mmu.ac.uk.
authors.forename: Glen T
authors.initials: GT
authors.lastname: West
authors.affiliation: School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT9 5AG, UK. marina_ratova@hotmail.com.
authors.forename: Marina
authors.initials: M
authors.lastname: Ratova
authors.affiliation: School of Healthcare Science, Manchester Metropolitan University, Manchester M1 5GD, UK. l.fisher@mmu.ac.uk.
authors.forename: Leanne
authors.initials: L
authors.lastname: Fisher
authors.affiliation: Surface Engineering Group, Dalton Research Institute, Manchester Metropolitan University, Manchester M1 5GD, UK. soheyla.ostovarpour@stu.mmu.ac.uk.
authors.forename: Soheyla
authors.initials: S
authors.lastname: Ostovarpour
authors.affiliation: School of Healthcare Science, Manchester Metropolitan University, Manchester M1 5GD, UK. j.verran@mmu.ac.uk.
authors.forename: Joanna
authors.initials: J
authors.lastname: Verran
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry* / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects; D008027:Light; D060526:Magnetic Fields; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry* / Q000494:pharmacology*; D014867:Water / Q000737:chemistry
chemical_list: D000890:Anti-Infective Agents; D014867:Water; C009495:titanium dioxide; D014025:Titanium