Sol—gel preparation and photoelectrochemical properties of TiO2 films containing Au and Ag metal particles

Ag/AgBr/TiO2 Visible Light Photocatalyst for Destruction of Azodyes and Bacteria

“…[1][2][3][4][5] The main drawbacks of low quantum yields and the lack of visible light utilization, however, hinder its practical application. To handle these problems, numerous studies have recently been performed to enhance the photocatalytic efficiency and visible light utilization of TiO 2 , which include impurity doping, [6][7][8][9] metallization, [10][11][12][13][14][15] and sensitization. 16,17 According to these published works, the deposition of the metal on visible light catalysts highly improved its photoefficiency through the Schottky barrier CB electron trapping and consequent longer electron-hole pair lifetimes.…”

Electron Beam Induced Structural Modification of the Oxidized Silicon Micro-Clusters in ZnO Matrix

“…Though the preparation and behaviours of nano-and micro-crystals of Si and Ge have been reported by several workers [6][7][8][9][10][11], in most of the studies, Si02 has been used as the matrix material for those optical functional composites. On the other hand, use of functional matrix materials like Ti02, ZnO, MgO is rather very recent [12][13][14][15] Results and Discussion Figure 1 shows the Si/Zn atomic ratio in the as-deposited composite films as a function of Si pieces placed on the ZnO target. The Si/Zn atomic ratio was calculated from Si2P3/2 and Zn2p3/2 peak areas in XPS spectra of the films.…”

Silver doped titanium dioxide nanomaterials for enhanced visible light photocatalysis

“…Tita- 24 nium dioxide is one of the most widely studied semi-conducting 25 photocatalysts for the degradation of organic contaminants from visible light activity to TiO 2 [5][6][7][8][9][10] and these studies include the 37 doping with metal and non-metal ions [11][12][13][14], dye sensitisation 38 [15], and semiconductor coupling, etc.…”