Photoconductivity of TiO2 films deposited by PECVD

Abstract

TiO2 thin films were prepared by PECVD technique from vapors of Titanium-IViso--propoxide mixed with oxygen at different temperatures. The films were deposited on substrates with system of special platinum electrodes and on glass substrates. Absorption spectra in the visible light region, photoconductivity and capacitance at different humidity, photocatalytic activity under UV irradiation and surface morphology were evaluated on the films. The results revealed that the photoconductivity is influenced by humidity and is connected to the photocatalytic activity.PACS : 51.70.+f

Acid Orange II degradation through a heterogeneous Fenton-like reaction using Fe–TiO2 nanotube arrays as a photocatalyst

“…12,13 TiO 2 nanoparticles and lms have been used for the photocatalytic degradation of AO II. [14][15][16][17] However, the degradation efficiency of AO II is still low. Self-organized and vertically oriented TiO 2 nanotube arrays (TiO 2 NTAs) have attracted much attention and have been proved to be promising photocatalysts in the photocatalytic degradation of organic compounds since rst reported in 2001.…”