Results 261 to 270 of about 125,199 (299)

A Photocatalytically Active Lubricant‐Impregnated Surface

Angewandte Chemie International Edition, 2017
AbstractLubricant impregnated surfaces (LISs) exhibit sliding angles below 5°. A LIS is presented that possesses photocatalytic activity as well as improved liquid repellency. In a single‐step reaction, the surface of photocatalytic mesoporous TiO2 substrate is modified by grafting polydimethylsiloxane (PDMS) brush and the residual non‐bound PDMS ...
Sanghyuk Wooh, Hans-Jürgen Butt
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Photocatalytic activity of TiO2/SiO2 systems

Journal of Hazardous Materials, 2010
Silica-supported TiO(2) powders were synthesized by a wet method under mild conditions. The aim of the work was the preparation of TiO(2)/SiO(2) additives for photocatalytic cements. Three types of commercial SiO(2) were used as supports: Cabot, Axim and Fly Ash.
BELLARDITA, Marianna, ADDAMO, Maurizio, DI PAOLA, Agatino, MARCI', Giuseppe, PALMISANO, Leonardo, Cassar, L, Borsa, M.   +6 more
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Titania Nanoflowers with High Photocatalytic Activity

Journal of the American Ceramic Society, 2006
Titania with nanostructures has attracted considerable attention due to its potential use in catalysts, gas sensors, photovoltaic cells, photonic crystals, etc. This paper reports the synthesis of titania nanoflowers by simply oxidizing pure titanium with hydrogen peroxide solutions containing hexamethylenetetramine and nitric acid
Osaka, A, Huang, B, Wang, M, Wu, JM
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Photocatalytic activity of semiconductor sulfide heterostructures

Dalton Transactions, 2013
This paper reports a theoretical and experimental study of the heterostructure photocatalytic activity in a CdS or ZnS and CdS@ZnS decorated system prepared by a microwave assisted solvothermal (MAS) method. A theoretical model of the decorated system was created in order to analyze the electronic transition mainly in their interface.
Raubach, Cristiane W., De Santana, Yuri V. B., Ferrer, Mateus M., Buzolin, Prescila G. C., Sambrano, Júlio R., Longo, Elson   +5 more
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Photocatalytic Activity of Hydrogenated TiO₂

ACS Applied Materials & Interfaces, 2013
Photocatalysis is a promising advanced water treatment technology, and recently the possibility of using hydrogenation to improve the photocatalytic efficiency of titanium dioxide has generated much research interest. Herein we report that the use of high-temperature hydrogenation to prepare black TiO2 primarily results in the formation of bulk defects
Tim, Leshuk, Roozbeh, Parviz, Perry, Everett, Harish, Krishnakumar, Robert A, Varin, Frank, Gu   +5 more
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Why hydroxocobalamin is photocatalytically active?

Chemical Physics Letters, 2012
Abstract Time-dependent density functional theory (TD-DFT) has been applied to investigate the relevant excited states involved in the photodissociation of hydroxocobalamin (HOCbl). The TD-DFT/BP86/6-31G(d) and TD-DFT/BP86/6-311G(d,p)//BP86-631G(d) calculations suggest that the photoscission of Co–OH bond is mediated by the repulsive 1(n + dCo → σ∗Co–
Manoj Kumar, Pawel M. Kozlowski
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Photocatalytic activation of gypsum cements

Russian Journal of Applied Chemistry, 2017
Photocatalytic activity of gypsum cements that are based on the building plaster blend and synthetic calcium sulfate and contain 2–10 wt % titanium dioxide of anatase modification was studied. The decomposition rate of the model contaminant (Rhodamine C) on the surface of a plaster blend containing 2 wt %TiO2 becomes seven times higher under exposure ...
E. N. Krutsko, O. N. Musskaya, A. I. Kulak, V. K. Krut’ko   +3 more
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Bi60In2O93 Nanoparticles: Photocatalytic Activity Investigation

Journal of Nanomaterials & Molecular Nanotechnology, 2018
Objective: Synthesis and characterization of bismuth indium oxide (Bi60In2O93) nanoparticles and their evaluation as new visible lightsensitive photocatalysts. Methods: Synthesis was achieved using a simple hydrothermal method at low temperature and the crystal structures and morphology of the prepared Bi60In2O93 nanoparticles were characterized by X ...
Abdulkarem Al ofairi, Sundus Al Marsumi
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Chemical Auxiliary for Photocatalytic Active Colloids

Journal of the American Chemical Society
Active colloids with the ability to self-propel and collectively organize are emerging as indispensable elements in microrobotics and soft matter physics. For chemically powered colloids, their activity is often induced by gradients of chemical species in the particle's vicinity.
Wendi Duan, Yijiang Mu, Xiaoyong Mo, Zhisheng Wang, Tianran Zhang, Yannis Yan Lum Ho, Dengping Lyu, Dongwei Zhang, Runkai Zhao, Edmund Chun Ming Tse, Yongxiang Gao, Hao Wu, Yufeng Wang   +12 more
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High photocatalytic activity of ZnO–graphene composite

Journal of Colloid and Interface Science, 2018
In this work, ZnO nanoparticles-reduced graphene oxide (rGO) composites were fabricated via a novel one-step photochemical method. The developed nanocomposite offered high photodegradation efficiency of methylene blue (MB) under UV and visible light. In the proposed route, the reduction of graphene oxide (GO) and formation of ZnO nanoparticles occurred
Bing, Xue, Yingquan, Zou
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