Results 51 to 60 of about 10,496 (245)

High visible-light active Ir-doped-TiO2 brookite photocatalyst synthesized by hydrothermal microwave-assisted process [PDF]

open access: yes, 2014
Iridium-doped TiO2 having a brookite phase was synthesized as a visible light-active photocatalyst. It was prepared by using a hydrothermal assisted-microwave process as an improved competitive production method over the traditional hydrothermal process.
Menéndez-Flores Víctor M.   +1 more
core   +2 more sources

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

open access: yesNanomaterials, 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   +5 more
doaj   +1 more source

Brookite, the Least Known TiO2 Photocatalyst [PDF]

open access: yesCatalysts, 2013
Brookite is the least studied TiO2 photocatalyst due to the difficulties usually encountered in order to obtain it as a pure phase. In this review, a comprehensive survey of the different methods available for preparing brookite powders and films is reported.
Agatino Di Paola   +2 more
openaire   +1 more source

Sintering-Induced Phase Transformation of Nanoparticles: A Molecular Dynamics Study [PDF]

open access: yes, 2015
Sintering-induced phase transformation of TiO2 nanoparticles is investigated systematically via molecular dynamics simulation. Upon defining a coordination number and bond angle distribution criteria, local phase information is identified for each ...
Li, S, Luo, KH, Mao, Q, Ren, Y
core   +1 more source

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

open access: yesНанотехнологии 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   +3 more
doaj   +1 more source

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

open access: yes, 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   +33 more
core   +1 more source

Effect of titanium dioxide crystalline structure on the photocatalytic production of hydrogen [PDF]

open access: yes, 2011
The effect of the crystalline phase of TiO 2 (anatase, rutile and brookite) on its photocatalytic activity in hydrogen production from methanol-water vapours has been investigated by testing a series of both home-made and commercial TiO 2 photocatalysts,
Chiarello, G.   +3 more
core   +1 more source

Effect of silver on the phase transition and wettability of titanium oxide films [PDF]

open access: yes, 2016
The effect of silver on the phase transition and microstructure of titanium oxide films grown by pulsed cathodic arc had been investigated by XRD, SEM and Raman spectroscopy.
Albella, Jose M.   +4 more
core   +1 more source

Mechanistic Insights Into Photocatalytic Materials for Toxic Pollutants: Environmental Remediation of Personal Care Products

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Photocatalytic materials have emerged as promising solutions for environmental applications due to their ability to degrade organic pollutants under sunlight or artificial light. In this review, recent progress on the photocatalytic materials used for the degradation of pharmaceutical personal care products (PPCPs) in environmental ...
Urvashi Sen   +5 more
wiley   +1 more source

Textural evolution and phase transformation in titania membranes: Part 1. -unsupported membranes [PDF]

open access: yes, 1993
Textural evolution in sol–gel derived nanostructured unsupported titania membranes has been studied using differential scanning calorimetry (DSC), differential thermal analysis (DTA), thermal gravimetry (TG), X-ray diffraction (XRD) and N2 adsorption ...
Burggraaf, Anthonie J.   +2 more
core   +3 more sources

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