Results 41 to 50 of about 9,819 (225)

Sol-Gel Processes in Micro-Environments of Black Shale: Learning from the Industrial Production of Nanometer-Sized TiO2 Polymorphs

ChemEngineering, 2019
Micro-environments in black shale are reactors for geochemical reactions that differ from the bulk scale. They occur in small isolated pores of several 10 s to 100 s of nanometers without or with limited ionic exchange by diffusion to the surrounding ...
Hans-Martin Schulz
doaj   +1 more source

Effects of the Brookite Phase on the Properties of Different Nanostructured TiO2 Phases Photocatalytically Active Towards the Degradation of N‐Phenylurea

ChemistryOpen, 2020
Different sol‐gel synthesis methods were used to obtain four nanostructured mesoporous TiO2 samples for an efficient photocatalytic degradation of the emerging contaminant N‐phenylurea under either simulated solar light (1 Sun) or UV light. Particularly,
Dr. Francesca S. Freyria, Nicola Blangetti, Dr. Serena Esposito, Dr. Roberto Nasi, Prof. Marco Armandi, Vincenzo Annelio, Prof. Barbara Bonelli   +6 more
doaj   +1 more source

Methods of Titanium Dioxide Synthesis (Review)

Фізика і хімія твердого тіла, 2020
TiO2-based nanomaterials are attracting much attention in many areas, such as photocatalysis, photoelectricity, probing, electrochromism, photochromism, etc. They are widely used in paints, polymers, sunscreens, and toothpaste.
I. F. Mironyuk, L. M. Soltys, T. R. Tatarchuk, Kh. O. Savka   +3 more
doaj   +1 more source

Preparation and enhanced electrorheological properties of elastomers filled with rod-shaped TiO2 particles

Frontiers in Materials, 2023
The morphology of dispersed particles has been proven to have a significant impact on performance of electrorheological (ER) materials, while there is a lack of relevant research on its impact on the properties of electrorheological elastomers (EREs). In
Gang Ti, Gang Ti, Yi Fan, Jian Tang, Chenguang Niu, Xiaoyan Xiong   +5 more
doaj   +1 more source

On the optical properties of Ag^{+15} ion-beam irradiated TiO_{2} and SnO_{2} thin films

, 2012
The effects of 200-MeV Ag^{+15} ion irradiation on the optical properties of TiO_{2} and SnO_{2} thin films prepared by using the RF magnetron sputtering technique were investigated.
A. Fujishima, Abhinav Pratap Singh, C. Drake, D. K. Shukla, H. Demiryont, H. K. Pulker, H. Tang, H. Thakur, H. Thakur, Hardeep Thakur, J. Biersack, J. Robertson, J.-G. Li, K. B. Sundaram, K. K. Sharma, K. M. Glassford, Keun Hwa Chae, L. Martinu, M. Law, M. Ramamoorthy, M. S. Arnold, N. Daude, P. J. D. Lindan, P. K. Kulriya, Pardeep Thakur, Ravi Kumar, S. A. Wolf, S. Y. Kim, Sanjeev Gautam, W. Brown, Y. Matsumoto, Y.-S. Hea, Yogesh Kumar, Z. Zhang   +33 more
core   +1 more source

Crystallization of TiO2 polymorphs from RF-sputtered, amorphous thin-film precursors

AIP Advances, 2020
Crystalline TiO2 films of anatase, brookite, and rutile are reproducibly made from amorphous precursors deposited by RF magnetron sputtering, producing large-area, single phase films of uniform thickness.
O. Agirseven, D. T. Rivella Jr., J. E. S. Haggerty, P. O. Berry, K. Diffendaffer, A. Patterson, J. Kreb, J. S. Mangum, B. P. Gorman, J. D. Perkins, B. R. Chen, L. T. Schelhas, J. Tate   +12 more
doaj   +1 more source

Three-Phase Mixed Titania Powder Modified by Silver and Silver Chloride with Enhanced Photocatalytic Activity under UV–Visible Light

Nanomaterials, 2022
Pure and Ag/AgCl-modified titania powders with anatase/rutile/brookite three-phase mixed structure were prepared by one-step hydrothermal method. The effects of Ag/Ti atomic percentages on the structure and photocatalytic performance of TiO2 were ...
Xiaodong Zhu, Fengqiu Qin, Yangwen Xia, Daixiong Yang, Wei Feng, Yu Jiao   +5 more
doaj   +1 more source

Fabrication of morphology-controlled TiO2 photocatalyst nanoparticles and improvement of photocatalytic activities by modification of Fe compounds [PDF]

, 2015
Our previous studies suggested that redox reaction proceeded separately on specific exposed crystal faces of TiO2 nanoparticles. Site-selective deposition of metal or metal oxide on TiO2 specific exposed crystal faces successfully proceeded using the ...
Lee Szu Ying, Ohno Teruhisa, Yang Yin
core   +2 more sources

Nanostructured titanium dioxide-based photocatalysts for self-cleaning concrete: аssessment of effects of phase composition on photocatalytic activity of TiO2 [PDF]

Нанотехнологии в строительстве
Introduction. Currently, the development of photocatalytically active cement-based materials with self-cleaning properties is a promising area of building materials science.
Artemy S. Balykov, Denis B. Chugunov, Vladimir M. Kyashkin, Natalia S. Davydova   +3 more
doaj   +1 more source

Raman Line Scan Analyses and a New Hypothesis for the Formation of Anatase‐Hosting Microbialites: Study of the Stromatolites From Saint‐Jean‐de‐la‐Rivière, Cotentin, France

Journal of Raman Spectroscopy, EarlyView.
Micrometer analysis of millimeter lines of Raman spectra concludes in the association of anatase and graphitized organic matter (graphogen). The photosynthetic microorganisms at the origin of the microbialites produce O2, which is transformed by TiO2 into reactive species that, in turn, decompose the organic matter of the microorganisms. ABSTRACT Raman
Marie‐Paule Bassez
wiley   +1 more source