Effect of plasma treatment on surface properties of TiO2 nanoparticulate films
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 181-186 |
Journal / Publication | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
Volume | 262 |
Issue number | 1-3 |
Publication status | Published - 15 Jul 2005 |
Externally published | Yes |
Link(s)
Abstract
TiO2 nanoparticle films were prepared by plasma-enhanced chemical vapor deposition, and subsequently, their surfaces were treated by TiCl4 and O2 plasmas, respectively. Experiments of phenol photodegradation show that the TiO2 film treated by O2 plasma presents much higher photocatalytic activity than that treated by TiCl4 plasma. X-ray photoelectron spectral analyses indicate that more active species, such as O2-, are formed on surface of the film treated by O2 plasma than that treated by TiCl4 plasma. The energy levels of the surface species and the photogenerated electronic transitions via these surface species are further investigated by surface photovoltage spectra (SPS) and electric field-induced surface photovoltage spectra (EFISPS). © 2005 Elsevier B.V. All rights reserved.
Research Area(s)
- PCVD, Photocatalytic activity, Surface species, TiO2 nanoparticulate film
Bibliographic Note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
Citation Format(s)
Effect of plasma treatment on surface properties of TiO2 nanoparticulate films. / Cao, Yaan; Meng, Qingjiu; Yang, Wensheng et al.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 262, No. 1-3, 15.07.2005, p. 181-186.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 262, No. 1-3, 15.07.2005, p. 181-186.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review