نتایج جستجو برای: combustion irradiation technique sol

تعداد نتایج: 715320  

2007
Peter Dinka

Nanomaterials with characteristic structural dimensions on the order of few nanometers (1–100 nm) attract wide attention owing to their unique properties. They found a variety of applications in different branches of science and industry including catalysis, micro and biotechnologies, energy storage and conversion devices, such as fuel cells. Different techniques have been developed for nanomat...

Journal: :iranian journal of analytical chemistry 2015
zarrin es’haghi zohreh rezaeifar

this research is on the improvement of the procedure to determination of trace levels of antidepressant drug; fluoxetine in wastewaters. in this research a silica based sol-gel was applied for the extraction of fluoxetine from water samples. this two-phase technique is consisting of aqueous samples of fluoxetine (donor phase) and silica based nanocomposite prepared by sol-gel technique (accepto...

In this paper, LaBO3 perovskite type catalyst formulations were prepared by sol-gel auto combustion method using citric acid as the fuel. Activity of catalysts was tested in catalytic oxidation of toluene as a model of volatile organic compounds. LaCoO3 perovskite formulation showed the highest activity among LaBO3 (Fe, Mn and Co) perovskite catalysts. So, LaCoO3 perovskite based catalyst was s...

2009
Margaret E. Kosal

Titanium gels doped with water-soluble cationic porphyrin were synthesized by the sol–gel polymerization of Ti (OC4H9)4. In this work we investigate the spectroscopic properties along with SEM images of tetra carboxyl phenyl porphyrin when incorporated into porous matrix produced by the sol–gel technique. Keywords—TCPP; Titanium matrix; UV/Vis spectroscopy; SEM.

2013
Y. Feng T. Lunt

The paper presents a numerical technique for modeling “trace” impurity transport in the scrape-off-layer (SOL) and core regions by implicit coupling of a three-dimensional (3D) edge Monte Carlo code like EMC3-Eirene [1, 2] to a one-dimensional (1D) core model handled by a finite difference method. For given core plasma and transport coefficient profiles, certain types of particular solutions to...

Journal: :journal of ultrafine grained and nanostructured materials 0
soha mohajeri department of materials science and engineering, sharif university of technology, tehran, iran. abolghassem dolati department of materials science and engineering, sharif university of technology, tehran, iran. mohammad ghorbani department of materials science and engineering, sharif university of technology, tehran, iran.

in this research, a sol-modified composite electrodeposition technique that combines the sol-gel method with the conventional electrodeposition process was utilized to deposit ni-tio2 nanocomposite coatings. cyclic voltammetry and chronoamperometry techniques were applied to study the influence of the tio2 sol concentration on the deposits’ electrochemical behavior. the results clearly showed t...

Journal: :European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences 2017
Justine Thiry Miranda G M Kok Laurence Collard Antoine Frère Fabrice Krier Marianne Fillet Brigitte Evrard

Solid dispersion formulations made of itraconazole (ITZ) and Soluplus® (polyethylene glycol, polyvinyl acetate and polyvinylcaprolactame-based graft copolymer abbreviated SOL) were produced using hot melt extrusion. Since ITZ possesses a water solubility of less than 1ng/mL, the aim of this work was to enhance the aqueous solubility of ITZ, and thereby improve its bioavailability. The three for...

2013
Huaxiang Lin Luyao Ding Weihua Deng Xuxu Wang Jinlin Long Qun Lin

The ZnO sol well-crystallized was prepared by the sol-gel method. The ZnO films were coated on medical-grade PVC surface by the improved organic-inorganic interfacial adhesion method. The physical and photocatalytic properties of the samples were characterized by XRD, SEM, DRS spectra and measured by the photodegradation reaction of Rhodamine B (RhB) and anti-bacteria for Escherichia coli (E. c...

1999
M. R. Wade D. N. Hill G. L. Jackson C. J. Lasnier A. W. Leonard M. A. Mahdavi R. Maingi

Experiments on DIII-D have demonstrated the ecacy of using induced scrape-o€-layer (SOL) ̄ow to preferentially enrich impurities in the divertor plasma. This SOL ̄ow is produced through simultaneous deuterium gas injection at the midplane and divertor exhaust. Using this SOL ̄ow, an improvement in enrichment (de®ned as the ratio of impurity fraction in the divertor to that in the plasma core) ...

Journal: :international journal of environmental research 2009
h.y. he

nano-srtio3 and tio2 powders were synthesized using sol-gel method. the srtio3 and tio2 powders were characterized using xrd, sem, and spectrophotometry. xrd analysis indicated that the tio2 powder was uniform anatase crystals of 9.9 nm and the srtio3 powders was cubic nano-crystal of 16.2nm. photocatalytic experiments revealed that methyl orange in water can be decomposed on the two powders un...

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