Results 141 to 150 of about 5,928 (190)

Biomimetic synthesis of titania nanoparticles induced by protamine

Dalton Transactions, 2008
Protamine, a kind of cationic protein extracted from sperm nuclei, was employed for the first time in vitro to induce the formation of a titania/protamine nanoparticle composite from a water-stable titanium precursor, titanium(IV) bis(ammonium lactato) dihydroxide (Ti-BALDH).
Yanjun, Jiang, Dong, Yang, Lei, Zhang, Lin, Li, Qianyun, Sun, Yufei, Zhang, Jian, Li, Zhongyi, Jiang   +7 more
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Ethylene glycol-assisted coating of titania on nanoparticles

Dalton Transactions, 2016
Ethylene glycol can complex with titanium alkoxide to yield a chelated and stabilized titanium glycolate species that can be used as an excellent precursor for coating nanoscale colloidal objects. The titanium glycolate coating can be converted to crystalline TiO 2 either through high ...
Michael, Dahl, Fernando, Castaneda, Ji Bong, Joo, Victor, Reyes, James, Goebl, Yadong, Yin   +5 more
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Controlled Deposition of Gold Nanoparticles on Titania Support

Journal of Nanoscience and Nanotechnology, 2016
In our research, the commercial TiO2 (Degussa P25) was modified with gold nanoparticles (Au NPs) by reduction reaction with trisodium citrate. A remarkable influence of pH on particle size, size distribution and dispersion of Au on TiO2 support was observed. The size of Au NPs on TiO2 surface decreased with increase in the pH of the precursor solution.
Dung The, Nguyen, Kyo-Seon, Kim
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Mechanism of Formation of Faceted Titania Nanoparticles from Anodized Titania Nanotubes

The Journal of Physical Chemistry C, 2015
Though researchers worldwide have attempted to fabricate faceted titania nanoparticles with a higher fraction of {001} facets, which have high surface energy, the approaches have focused on use of either a very aggressive heating schedule or highly corrosive chemicals like HF.
NADUVATH, J, BHARGAVA, P, MALLICK, S
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Effect of annealing temperature on titania nanoparticles

AIP Conference Proceedings, 2014
Titania polycrystalline samples are prepared by using sol-gel route hydrolyzing a alkoxide titanium precursor under acidic conditions. The as prepared samples are treated with different calcination temperatures. The anatase phase of titania forms when treated below 600°C, above that temperature the anatase phase tends to transform into the rutile phase
K. Manikandan, S. Arumugam, G. Chandrasekaran   +2 more
openaire   +1 more source

Deposition of Titania Nanoparticles on Spherical Silica

Journal of Sol-Gel Science and Technology, 2003
Titania coated silica nanoparticles were prepared through a sol-gel process using peptized TiO2 nano-sols. The TiO2 sols were obtained by peptization, the process of redispersing a coagulated colloid, and were coated on SiO2 particles by the control of the weight ratio of TiO2/SiO2 and the pH of the mixture in aqueous solution. At pH 4.5 the difference
Dong Hwan Ryu, Seong Chul Kim, Sang Man Koo, Dong Pyo Kim   +3 more
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Different Kinetic Degradation Of Methyl Orange By Nanostructured Titania: Titania Nanotube, Titania Nanofiber, And Titania Nanoparticle

Qatar Foundation Annual Research Forum Volume 2013 Issue 1, 2013
TiO2 is a semiconductor with photo-catalytic properties and is being thoroughly investigated for its use in the degradation of harmful environmental pollutants using photo-catalytic reactions. The effects of TiO2 nanoparticles and different structured TiO2 electrodes on methyl orange degradation using sunlight have been investigated.
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Functionalized titania nanoparticles for mercury scavenging

J. Mater. Chem., 2007
Mesoporous films based on crystalline TiO2 nanoparticles functionalized with a ruthenium dye are used as efficient mercury [Hg(II)] scavengers. Mercury scavenging from aqueous solutions at room temperature was monitored both optically and by Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES). In both cases, the scavenging was observed to
Xiaoe Li, Javier Pérez-Hernández, Saif A. Haque, James R. Durrant, Emilio Palomares   +4 more
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Preparation of nanoporous titania spherical nanoparticles

Journal of Solid State Chemistry, 2013
Abstract Preparation of nanoporous titania particles from well-defined titania–octadecylamine (titania–ODA) hybrid spherical particles with 450 nm in size, which were prepared by the method reported previously (Chem. Commun., 2009, pp. 6851–6853 [39] ; RSC Adv., 2012, vol. 2, pp. 1343–1349 [40] ), was studied.
Kota Shiba, Soh Sato, Takayuki Matsushita, Makoto Ogawa   +3 more
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Polymer microspheres stabilized by titania nanoparticles

Materials Letters, 2006
Abstract Polymer microspheres stabilized by titania nanoparticles were synthesized using a two-step Pickering emulsion polymerization process, in which nanosized titania nanoparticles were used as solid emulsifiers and building blocks. It gives a simple but novel route for the fabrication of functional inorganic/polymer hybrid materials with ...
Yuyang Liu, Xianqiong Chen, Ronghua Wang, J.H. Xin   +3 more
openaire   +1 more source