Preparation of Rare-Earth Element Doped Titanium Oxide Thin Films and Photocatalysis Properties

2007 ◽  
Vol 336-338 ◽  
pp. 1946-1948 ◽  
Author(s):  
X.L. Jia ◽  
Y. Wang ◽  
R.S. Xin ◽  
Quan Li Jia ◽  
Hai Jun Zhang
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Titanium Oxide ◽  
Rare Earth Element ◽  
Earth Element ◽  
Sol Gel ◽  
Oxide Films ◽  
Nanocrystalline Tio2 ◽  
Preparation Conditions ◽  
Titanium Oxide Films

Rare-earth doped porous nanocrystalline TiO2 films were prepared via sol-gel method. The effect of preparation conditions on the properties of the resulting thin films, such as structure, surface topography and photocatalysis properties was analyzed. It indicated that appropriate doping of rare-earth element improves the photocatalysis ability of the thin titanium oxide films. The thin titanium oxide films have good photocatalysis properties in visible light region because of the red shift of energy level. It also revealed that uni-doped of cobalt is better than that of cobalt and lanthanum, while co-doping of cerium, cobalt and lanthanum may cause the best photocatalysis properties.

Preparation, Characterization and its Photocatalytic Performance of Rare Earth Element Erbium Doped with TiO2 Material

2012 ◽  
Vol 568 ◽  
pp. 380-383
Author(s):  
Song Tian Li ◽  
Guo Xu He ◽  
Wei Ma ◽  
Yan Hua Liu
Keyword(s):  
Titanium Dioxide ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Visible Region ◽  
Erbium Doped ◽  
Sol Gel Process ◽  
Reduce Energy Consumption

In order to expand photoresponse range of TiO2, reduce energy consumption of semiconductor material optical catalytic, certain amount of rare earth element Erbiun was doped during preparation of anatase titanium dioxide to improve the light absorption and photocatalysis efficiency. A series of rare earth element doped TiO2 material were prepared by sol-gel process, and characterized by means of UV-vis diffuse reflectance spectra. UV-vis absorption verified that doping of Er3+ enhanced absorptive capacity of catalyst in visible region. The photocatalytic performance of anatase titanium dioxide and rare earth element Erbiun doped with TiO2 to basic fuchsin were studied.

Investigation on ultrathin titanium oxide films synthesized by surface sol–gel method

Optik ◽  
2016 ◽  
Vol 127 (5) ◽  
pp. 2780-2783 ◽  
Author(s):  
Zhang Xin ◽  
Mao Lei ◽  
Wang Jian-gang ◽  
Zhang Hui-min
Keyword(s):  
Titanium Oxide ◽  
Sol Gel ◽  
Oxide Films ◽  
Gel Method ◽  
Sol Gel Method ◽  
Titanium Oxide Films

Nitridation of the Sol-Gel-Derived Titanium Oxide Films by Heating in Ammonia Gas

1990 ◽  
Vol 73 (9) ◽  
pp. 2750-2752 ◽  
Author(s):  
Kanichi Kamiya ◽  
Tomoaki Nishijima ◽  
Katsuhisa Tanaka
Keyword(s):  
Titanium Oxide ◽  
Sol Gel ◽  
Oxide Films ◽  
Ammonia Gas ◽  
Titanium Oxide Films

A Versatile new Metallo-Organic Spin-on Process for Preparing Superconducting Thin films

1987 ◽  
Vol 99 ◽  
Author(s):  
M. E. Gross ◽  
M. Hong ◽  
S. Liou ◽  
P. K. Gallagher
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
High Temperature ◽  
Rare Earth Element ◽  
Earth Element ◽  
Processing Temperature ◽  
Superconducting Thin Films ◽  
Oriented Film ◽  
Black Films ◽  
Degree Of Orientation

ABSTRACTA new metallo-organic spin-on technique is described for producing thin films of the high temperature perovskite superconductors, LnBa2Cu3O7−x, where Ln represents a rare earth element. Pyrolysis of the spin-coated films leads to black films up to several microns thick whose degree of orientation is a function of the processing temperature and duration. Representative films of YBa2Cu3O7−x on MgO begin to exhibit orientation with the c-axis perpendicular to the film at heat treatments above 900 'C. The superconducting behavior of a highly oriented film produced at 990 ° C is characterized by Tc (onset) = 89 K, Tc (R=0) = 77 K and Jc = 104 amp cm-2 at 65 K.

Preparation and Study on Nano-Ag/SnO2 Electrical Contact Material Doped Rare Earth Element

2014 ◽  
Vol 789 ◽  
pp. 270-274 ◽  
Author(s):  
Yan Cai Zhu ◽  
Jing Qin Wang ◽  
Hai Tao Wang ◽  
Li Qiang An
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Electrical Contact ◽  
Sol Gel ◽  
Fusion Welding ◽  
Electrical Performance ◽  
Contact Material ◽  
Contact Materials ◽  
Electrical Contact Material

As a new type of electrical contact material, Ag/SnO2 has poor processing performance and large contact resistance, which limits its application so far. In order to improve the machinability and electrical performance of the Ag/SnO2 electrical contact materials, a new kind of nanoAg/SnO2 electrical contact material doped rare earth element Ce was prepared by sol-gel-chemical plating method. The purity of the powders was analyzed by X-ray diffraction (XRD) and the crystallite size of the nanoparticle was calculated according to the Scherrer equation. The distribution of Ce-doped SnO2 powers were studied using scanning electron microscopy (SEM). In parallel, rated making and breaking experiments on nanoAg/SnO2 were conducted. The results of XRD and SEM show that the nanoSnO2 powders are small, uniform and with no obvious phenomenon of reunion, and thus significantly improve the density, strength and machinability of the sample. Furthermore, the results of arc erosion show that the nanoAg/SnO2 electricity contact materials doped element Ce have superior fusion welding resistance properties.

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