نتایج جستجو برای: sulfated titania

تعداد نتایج: 7407  

2011
Mine Memesa Sebastian Lenz Sebastian G. J. Emmerling Sebastian Nett Jan Perlich Peter Müller-Buschbaum Jochen S. Gutmann

Titania nanoparticles are prepared by sol-gel chemistry with a poly(ethylene oxide) methyl ether methacrylate-block-poly(dimethylsiloxane)-block-poly(ethylene oxide) methyl ether methacrylate triblock copolymer acting as the templating agent. The sol-gel components-hydrochloric acid, titanium tetraisopropoxide, and triblock copolymer-are varied to investigate their effect on the resulting titan...

Journal: :Nanoscale 2013
Changui Ahn Junyong Park Donghyuk Kim Seokwoo Jeon

Titania has attracted considerable interest for use in water purification applications due to its excellent photocatalytic activity. To further improve the efficiency of photocatalysis, numerous nanostructures (i.e. nanoparticles, nanotubes, and nanowires) have been proposed to increase the surface area of titania. Despite the high photocatalytic performance of the nanostructured titania, subse...

Journal: :international journal of nano dimension 0
o. zuas research centre for chemistry, indonesian institute of sciences (rcchem-lipi) kawasan puspiptek serpong, 15314, tangerang, banten, indonesia. h. budiman research centre for chemistry, indonesian institute of sciences (rcchem-lipi), kawasan puspiptek serpong, 15314, tangerang, banten, indonesia. n. hamim research centre for chemistry, indonesian institute of sciences (rcchem-lipi), kawasan puspiptek serpong, 15314, tangerang, banten, indonesia.

pure anatase titania (tio2), mixed 1.0 wt.% cerium-anatase titania (1.0 wt.%ceo2-tio2), and mixed 1.0 wt.% zirconia-anatase titania (1.0 wt.%zro2-tio2) nano powders were synthesized by co-precipitation method and characterized using x-ray diffraction (xrd), brunauer-emmett-teller (bet) surface area analysis, uv-vis diffuse reflectance spectroscopy (drs), and transmission electron microscope (te...

Journal: :Chemical communications 2005
Dayong Zhang Limin Qi

Mesoporous titania networks consisting of interconnected anatase nanowires have been synthesized by using unique bacterial cellulose membranes as natural biotemplates; the titania networks exhibit enhanced photocatalytic activity compared with titania microfiber networks.

Journal: :Science and technology of advanced materials 2012
Juan L Vivero-Escoto Ya-Dong Chiang Kevin Wu Yusuke Yamauchi

This review article summarizes recent developments in mesoporous titania materials, particularly in the fields of morphology control and applications. We first briefly introduce the history of mesoporous titania materials and then review several synthesis approaches. Currently, mesoporous titania nanoparticles (MTNs) have attracted much attention in various fields, such as medicine, catalysis, ...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Ikuma Kuroda Yukihiro Shintani Masanori Motokawa Shuzo Abe Masahiro Furuno

A methodology of phosphopeptide-selective analysis coupled with column-switching HPLC utilizing titania as precolumn media is presented. Phosphopeptides were selectively enriched on titania packing within a protein/peptide mixture without any additional procedure, and analyzed by column-switching high-performance liquid chromatography. First, phospho-compounds were separated from complex mixtur...

2014
Silvia Giudicatti Sonja M. Marz Lluís Soler Abbas Madani Matthew R. Jorgensen Samuel Sanchez Oliver G. Schmidt

Because of its unique properties, titania (TiO2) represents a promising candidate in a wide variety of research fields. In this paper, some of the properties and potential applications of titania within rolled-up nanotechnology are explored. It is shown how the structural and optical properties of rolled titania microtubes can be controlled by properly tuning the microfabrication parameters. Th...

Journal: :Dalton transactions 2017
Jijian Xu Zhangliu Tian Guoheng Yin Tianquan Lin Fuqiang Huang

Black titania prepared by metal-reduction methods is systematically studied and found the best controllable Mg-reduction method. Colored titania products from white, light blue, dark blue, to black were obtained with a crystalline/amorphous core-shell structure. The black titania shows a five times higher H2 production rate in photoelectrochemical (PEC) water splitting.

In this research, two series of ultra-low cement high alumina refractory castables containing 0 and 0.4 wt.% of nano-titania were prepared using different amounts of polycarbonic acid (DOLAPIX FF 26) as a dispersant. Several characteristics including microstructure, flowability, mechanical strength, bulk density and apparent porosity of the samples were analyzed. The results showed that the opt...

2014
Jong-Ho Kim Dong Lyun Cho Geon-Joong Kim Baoyu Gao Ho Kyong Shon

Titania is the most widely used metal oxide for the applications of pigments, paper, solar cells and environmental purification. In order to meet the demand of a large amount of titania, our group has developed a novel process which could significantly lower the cost of waste disposal in water treatment, protect the environment and public health and yield economically valuable titania. Titanium...

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