Results 301 to 310 of about 535,514 (337)

Preparation and solar-light photocatalytic activity of TiO2 composites: TiO2/kaolin, TiO2/diatomite, and TiO2/zeolite

Russian Journal of Physical Chemistry A, 2014
Three TiO2 loaded composites, TiO2/kaolin, TiO2/diatomite, and TiO2/zeolite, were prepared in order to improve the solar-light photocatalytic activity of TiO2. The results showed that the photocatalytic activity could obviously be enhanced by loading appropriate amount of inorganic mineral materials.
Y. Li, S. G. Li, J. Wang, Y. Li, C. H. Ma, L. Zhang   +5 more
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TiO2, TiO2/Ag and TiO2/Au photocatalysts prepared by spray pyrolysis

Journal of the European Ceramic Society, 2011
Abstract TiO 2 , TiO 2 /Ag and TiO 2 /Au photocatalysts exhibiting a hollow spherical morphology were prepared by spray pyrolysis of aqueous solutions of titanium citrate complex and titanium oxalate precursors in one-step. Effects of precursor concentration and spray pyrolysis temperature were investigated.
Astri Bjørnetun Haugen, Izumi Kumakiri, Christian Simon, Mari-Ann Einarsrud   +3 more
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Photocatalytic activity of Cu2O/TiO2, Bi2O3/TiO2 and ZnMn2O4/TiO2 heterojunctions

Catalysis Today, 2005
Abstract Cu 2 O/TiO 2 , Bi 2 O 3 /TiO 2 and ZnMn 2 O 4 /TiO 2 heterojunctions were studied for potential applications in water decontamination technology and their capacity to induce an oxidation process under VIS light. UV–vis spectroscopy analysis showed that the junctions-based Cu 2 O, Bi 2 O 3 and ZnMn 2 O 4 are able to absorb a large part of
Y. Bessekhouad, D. Robert, J.-V. Weber
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Investigation on solar photocatalytic activity of TiO2 loaded composite: TiO2/Skeleton, TiO2/Dens and TiO2/HAP

Journal of Molecular Catalysis A: Chemical, 2010
Abstract The TiO 2 /Skeleton, TiO 2 /Dens and TiO 2 /HAP composites were prepared by sol–gel method. X-ray diffraction (XRD) and scanning electron microscope (SEM) were carried out to characterize them. Their photocatalytic activities were evaluated by degradation of Acid Red B under solar light irradiation. The results showed that the photocatalytic
Jun Wang, Chengwu Li, Xiaoyu Luan, Jia Li, Baoxin Wang, Liqun Zhang, Rui Xu, Xiangdong Zhang   +7 more
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Investigation on solar photocatalytic activity of TiO2 loaded composite: TiO2/Eggshell, TiO2/Clamshell and TiO2/CaCO3

Materials Letters, 2010
Abstract The TiO 2 /Eggshell, TiO 2 /Clamshell and TiO 2 /CaCO 3 loaded composites were prepared by sol–gel method and characterized by XRD and SEM. Their photocatalytic activities were measured through the degradation of Acid Red B under solar light irradiation.
Xia Chen, Chengwu Li, Jun Wang, Jia Li, Xiaoyu Luan, Ying Li, Rui Xu, Baoxin Wang   +7 more
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Critical evaluation and optimization of the thermodynamic properties and phase diagrams of the MnO-TiO2, MgO-TiO2, FeO-TiO2, Ti2O3-TiO2, Na2O-TiO2, and K2O-TiO2 systems

Metallurgical Transactions B, 1993
All available thermodynamic and phase diagram data have been critically assessed for all phases in the MnO-TiO2, MgO-TiO2, FeO-TiO2, Ti2O3-TiO2, Na2O-TiO2, and K2O-TiO2 systems at 1 bar pressure from 298 K to above the liquidus temperatures. All reliable thermodynamic and phase diagram data have been simultaneously optimized to obtain, for each system,
Gunnar Eriksson, Arthur D. Pelton
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TiO2 nanofibers embedding single crystalline TiO2 nanowires

Journal of Sol-Gel Science and Technology, 2011
Epitaxially grown titanium dioxide (TiO2) nanofibers embedding single crystalline TiO2 nanowires (NWs) were successfully fabricated by electropinning poly(vinyl pyrrolidone)/ethanol solutions mixed with hydrothermally synthesized TiO2 NWs and titanium isopropoxide precursors and subsequently calcinating the electrospun nanofibers.
So-Eun Kim, Youngjong Kang, Shiao-Wei Kuo, Changwoon Nah, Kwang-Un Jeong   +4 more
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Multisite luminescence and photocatalytic properties of TiO2:Sm3+ and TiO2:Sm3+@TiO2/TiO2:Sm3+@SiO2 luminescent enhancement materials

Journal of Alloys and Compounds, 2017
Abstract Sm 3+ doped TiO 2 nanocrystals with various morphologies were fabricated via a facile hydrothermal route, and the effect of morphology on the luminescence properties and photocatalytic activity of the products has been investigated. PL studies on TiO 2 :Sm 3+ revealed that the sensitized emission is a much more efficient pathway than the ...
Meiqi Chang, Yanhua Song, Jie Chen, Xiangting Zhang, Deyue Meng, He Zhu, Zhan Shi, Haifeng Zou, Ye Sheng   +8 more
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Surface Acidity and Photocatalytic Activity of TiO2, WO3/TiO2, and MoO3/TiO2 Photocatalysts

Chemistry of Materials, 1994
TiO[sub 2] powder samples were calcined at various temperatures and their photocatalytic activity toward the degradation of 1,4-dichlorobenzene was measured. The surface acidity of the sample was also determined by the n-butylamine titration method. A linear relationship between photocatalytic activity and surface acidity was observed for the TiO[sub 2]
J. Papp, S. Soled, K. Dwight, A. Wold
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Study of TiO2 nanocrystallites in TiO2SiO2 composites

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1998
Abstract A titania-silica nanocomposite system with six different compositions (10/90, 20/80, 40/60, 50/50, 60/40, 80/20 molar ratio of TiO2/SiO2) was prepared by a sol-gel method. Different experimental techniques such as XRD, TEM, EDAX, DTA and density measurements by Archimedes' method were used to characterize each composition.
R.N. Viswanath, S. Ramasamy
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