Surface characteristics and photoactivity of silver-modified palygorskite clays coated with nanosized titanium dioxide particles

2007 ◽  
Vol 58 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Difang Zhao ◽  
Jie Zhou ◽  
Ning Liu
Keyword(s):  
Titanium Dioxide ◽  
Surface Characteristics ◽  
Nanosized Titanium Dioxide ◽  
Modified Palygorskite

Surface Characteristics of TiO2 and Their Effect on Specific Capacity in Lithium and Sodium Systems

2021 ◽  
Vol 105 (1) ◽  
pp. 61-68
Author(s):  
Nataliya I. Globa ◽  
Yurii V. Shmatok ◽  
Tatyana V. Lisnycha ◽  
Sviatoslav A. Kirillov
Keyword(s):  
Titanium Dioxide ◽  
High Temperature ◽  
Alkali Metal ◽  
Surface Properties ◽  
Alkaline Hydrolysis ◽  
Alkali Metal Cation ◽  
Specific Capacity ◽  
Surface Characteristics ◽  
High Temperature Annealing ◽  
Nanosized Titanium Dioxide

The paper presents the results of studies of nanosized titanium dioxide (TiO2) samples synthesized by alkaline hydrolysis. The surface properties of the samples were modified using high-temperature annealing. As a result, samples with a specific surface area of 31-203 m2/g were obtained. The specific capacity of TiO2 in lithium and sodium cells was determined. It is noted that the nature of the curves obtained, the specific capacity and its stability during cycling depend on the nature of the alkali metal cation and the surface properties of TiO2.

Enhancement on Stability of Nanosized Titanium Dioxide in Silicone Suspension Using Diblock Copolymer: Influence of Dispersant Structure

2013 ◽  
Vol 747 ◽  
pp. 599-602
Author(s):  
Surachet Toommee ◽  
Nisanart Traiphol
Keyword(s):  
Titanium Dioxide ◽  
Surface Area ◽  
Diblock Copolymer ◽  
High Efficiency ◽  
Particle Surface ◽  
Ethyl Acrylate ◽  
Polymer Structure ◽  
Particle Agglomeration ◽  
Nanosized Titanium Dioxide ◽  
Enhanced Adsorption

This research investigates using of poly (dimethylsiloxane-b-hydroxy ethyl acrylate) (PDMS-b-PHEA) diblock copolymer to stabilized TiO2nanoparticles in silicone fluid. The polar PHEA segment is expected to anchor on TiO2surface while the non-polar PDMS segment extends into silicone medium. To study effects of polymer structure on its stabilizing efficiency, PDMS-b-PHEA of structures 5-b-0.3, 5-b-1.1 and 8-b-1.0 are used. Results show that suspensions of particle with surface area ~40 and ~200 m2/g can be stabilized for longer than 1 and 7 hrs, respectively. The copolymer with relatively long PHEA and PDMS segments is highly effective as a dispersant. This is due to enhanced adsorption on particle surface and steric stabilization. However, in the system of 40 m2/g-TiO2, excess amounts could lead to polymer entanglement and particle agglomeration. The copolymer dispersant exhibits high efficiency for the 200 m2/g-TiO2suspension as well. In the latter system, higher concentration is required to effectively cover particle surface.

Composition and Properties of TiO2 Sol to Produce a Photocatalytic Composite Material

2020 ◽  
Vol 854 ◽  
pp. 45-50
Author(s):  
Ekaterina N. Gubareva ◽  
Valeria V. Strokova ◽  
Yulia N. Ogurtsova ◽  
Pavel S. Baskakov ◽  
Lok Pratap Singh
Keyword(s):  
Composite Material ◽  
Titanium Dioxide ◽  
Ethyl Alcohol ◽  
Titanium Dioxide Nanoparticles ◽  
Sol Gel ◽  
Component Composition ◽  
Optimal Composition ◽  
Optimal Ratio ◽  
Nanosized Titanium Dioxide ◽  
Sol Gel Synthesis

The paper presents the process of sol-gel synthesis of titanium dioxide nanoparticles, the peculiarities of the influence of component composition (titanium precursor content, solvent and stabilizer − surfactant) on the properties of sol and powder obtained on its basis. As a result of the study, the nature of the influence of the type and content of the surfactant in the solution of tetrabutoxytitanium in ethanol on the size of the synthesized particles of titanium dioxide was revealed. The optimal composition of the reaction mixture of TiO–R sol was obtained and the optimal ratio of tetrabutoxytitanium and ethyl alcohol was revealed using which a material with a high content of nanosized titanium dioxide was obtained.

Nanocomposites Based on 1,2-Polybutadiene with a Functional Base of Nanosized Titanium Dioxide

2015 ◽  
Vol 42 (8) ◽  
pp. 23-28
Author(s):  
V.D. Yulovskaya ◽  
O.V. Kosova ◽  
G.M. Kuz'micheva ◽  
T.V. Monakhova ◽  
S.G. Karpova ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Nanosized Titanium Dioxide

scholarly journals Maternal exposure to nanosized titanium dioxide suppresses embryonic development in mice

2017 ◽  
Vol Volume 12 ◽  
pp. 6197-6204 ◽  
Author(s):  
Fashui Hong ◽  
Yingjun Zhou ◽  
Xiaoyang Zhao ◽  
Lei Sheng ◽  
Ling Wang
Keyword(s):  
Titanium Dioxide ◽  
Embryonic Development ◽  
Maternal Exposure ◽  
Nanosized Titanium Dioxide

The effect of the synthesis conditions of aluminum-modified nanosized titanium dioxide on the efficiency of its use in electrorheological dispersions

2017 ◽  
Vol 79 (1) ◽  
pp. 87-93 ◽  
Author(s):  
A. N. Murashkevich ◽  
O. A. Alisienok ◽  
I. M. Zharskii ◽  
E. V. Korobko ◽  
Z. A. Novikova
Keyword(s):  
Titanium Dioxide ◽  
Synthesis Conditions ◽  
Nanosized Titanium Dioxide
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