Photo-response of silver-TiO2 film

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

Review of Scientific Instruments

Volume

85

First Page

02C318-1

Last Page

02C318-3

Publication Date

2014

Abstract

Silver and TiO2 films were deposited on glass substrates via the plasma sputter type negative ion source and a compact planar magnetron, respectively. A silver target was biased and is sputtered by argon plasma for 30 min. TiO2 was deposited by sputtering a titanium disk and introducing oxygen in a 1:13 ratio with argon plasma for 2 h. The resulting composite films (silver on TiO2 and TiO2 on silver) were analyzed by its transmissivity in the UV-VIS region showing increased optical absorbance. The synthesized films were used in the photocatalytic degradation of methylene blue showing an increase in photocatalytic degradation when only TiO2 is used. The introduction of silver with TiO2 inhibited the effective photocatalytic degradation of methylene blue.

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Digitial Object Identifier (DOI)

http://dx.doi.org/10.1063/1.4862206

Disciplines

Physics

Keywords

Magnetron sputtering; Titanium dioxide; Silver films (Metal coating)

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