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needed. In fact, the stability of the catalyst is a critical step. Different catalysts have been investigated based on noble metals supported by different oxides (TiO 2 , ZrO 2 , CeO 2 and Al 2 O 3 ) [ 10 ]. These catalysts provided satisfactory results
-based catalysts attract special interest due to their low price and greater activity compared to other transition metals like Co, Ni, Cr, and Zn [ 3 , 4 ]. Recent research has demonstrated that highly dispersed CuO on reducible metal oxides such as TiO 2 [ 5
] studied the hydrogenation of ethyl lactate over RuB/TiO 2 in aqueous solution; the reaction condition (<423 K, 4 MPa) seems more mild and more handy. Recently, vapor-phase hydrogenation of ethyl lactate over Co/SiO 2 and Cu/SiO 2 was performed in a
]. Carbon supported noble metal sulfides were studied by Ledoux et al. [ 8 ] and Rh sulfide was the best in the second row. The order of reactivity in the HDS of dibenzothiophene was Rh/Al 2 O 3 > Rh/SiO 2 > Rh/SiO 2 –Al 2 O 3 > Rh/TiO 2 (the S BET of
Abstract
The processes of nucleation of Li2O-Al2O3-SiO2 glasses with TiO2 and TiO2+ZrO2 as nucleating agents were discussed. The DTA peak temperature and DTA peak height shown a strong dependence on the nucleation temperature in the glass with TiO2, while in the glass with TiO2+ZrO2 this tendency was small. The optimum nucleation temperatures were 745 and 760°C for two glasses. It suggested that with TiO2+ZrO2 as nucleating agents, the crystallization had lower sensitivity for nucleation temperature, and the glass had higher nucleation efficiency than with TiO2.
AVARRO , S. , 2014 . Minimization of metabenztiazuron residues in leaching water using amended soils and photocatalytic treatment with TiO 2 and ZnO . Journal of Environmental Sciences . 26 . 757 – 764
Abstract
Adsorption of long-lived 125Sb radioisotope (T 1/2 = 2.75 y) on alumina (Al2O3) and titania (TiO2) has been studied at different pH. Both the oxides have good adsorption capability for the 125Sb radioisotopes but the TiO2 is much superior. Adsorption kinetics of 125Sb radioisotopes on TiO2 surface and desorption of 125Sb radioisotopes from TiO2 surface in acidic and alkaline media have also been studied. The 125Sb-TiO2 phase has been subjected to γ-irradiation and found to be radiation stable against antimony release.
temperature on the catalytic performance were intensively investigated. Kinetic data were interpreted using the Langmuir–Hinshelwood model. Experimental Synthesis of Pt/TiO 2 catalyst Pt/TiO 2 catalyst was
carried out in search for advanced heterogeneous photocatalysts that can work under visible light. Among the metal oxides, TiO 2 has attracted extensive attention as a promising technique for the photocatalytic decomposition of organic pollutants in water
nodes, using a micro-syringe. After the experiment, the resulting particle is removed from the apparatus for further investigation (final moisture content, strength, etc.) The product system under investigation is a titanium dioxide (TiO 2 ) suspension
