Results 11 to 20 of about 78,467 (282)

Preparation of TiO2 pigment from ilmenite ore concentrate by molten alkaline process

open access: yesVietnam Journal of Science, Technology and Engineering, 2023
TiO2 pigment production from an ilmenite concentrate via a molten alkaline process was investigated. The ilmenite concentrate (54.19% TiO2) was first roasted in the molten NaOH system at various temperatures ranging from 600 to 800°C while the mass ...
Thi Thao Nguyen   +4 more
doaj   +1 more source

Mnemonic Rutile–Rutile Interfaces Triggering Spontaneous Dissociation of Water

open access: yesAdvanced Materials, 2023
AbstractWater interaction with mineral surfaces is a complex living system decisive for any photocatalytic process. Resolving the atomistic structure of mineral–water interfaces is thus crucial for understanding these processes. Fibrous rutile TiO2, grown hydrothermally on twinned rutile seeds under acidic conditions, is studied in terms of interface ...
Vesna Ribić   +5 more
openaire   +2 more sources

Polymetallic Cu-Bi-(Pb-Zn-Co-Ag) mineralization of the Perin Potok locality near Bor, Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2013
Complex polymetallic Cu-Bi-(Pb-Zn-Co-Ag) mineralization of the Perin Potok locality occurs as disseminations and fine nests in quartz-ankerite-(sericite) veins. The veins are located in metamorphic rocks of the outer contact zone of the Variscan
Pačevski Aleksandar   +2 more
doaj   +1 more source

Perturbed Angular Correlation Technique at ISOLDE/CERN Applied for Studies of Hydrogenated Titanium Dioxide (TiO2): Observation of Cd-H Pairs

open access: yesCrystals, 2022
Profound understanding of the local electronic and defect structure in semiconductors always plays a vital role in the further developing of applications of such materials.
Dmitry V. Zyabkin   +4 more
doaj   +1 more source

Kinetic Model for Nanocrystalline Anatase to Rutile Polymorphic Transformation [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2017
In this paper, kinetic models are presented for phase transformation from anatase to rutile in nanocrystalline samples at different temperature ranges.
R. Shakibania
doaj   +1 more source

Synthesis and textural properties of unsupported and supported rutile (TiO2) membranes [PDF]

open access: yes, 1993
Two approaches were postulated for improving the stability of porous texture of titania membranes: (1) retarding the phase transformation and grain growth; (2) avoiding the phase transformation.
Burggraaf, Anthonie J.   +4 more
core   +3 more sources

Inner-sphere complexation of cations at the rutile-water interface: A concise surface structural interpretation with the CD and MUSIC model [PDF]

open access: yes, 2009
Acid–base reactivity and ion-interaction between mineral surfaces and aqueous solutions is most frequently investigated at the macroscopic scale as a function of pH.
Hiemstra, T.   +3 more
core   +3 more sources

Electronic Structure of Vanadium-Doped TiO2 of Both Anatase and Rutile Based on Density Functional Theory (DFT) Approach

open access: yesAlchemy, 2018
Study of the theoretical  approah to calculate the band structure and density of states (DOS) of vanadium-doped TiO2 of both anatase and rutile have been done. The first-principle calculations were done using supercell (2x1x1) method. The first-principle
Hari Sutrisno
doaj   +1 more source

Copper-Modified Titania-Based Photocatalysts for the Efficient Hydrogen Production under UV and Visible Light from Aqueous Solutions of Glycerol

open access: yesNanomaterials, 2022
In this study, we have proposed titania-based photocatalysts modified with copper compounds for hydrogen evolution. Thermal pre-treatment of commercial TiO2 Degussa P25 (DTiO2) and Hombifine N (HTiO2) in the range from 600 to 800 °C was carried out ...
Anna Yu. Kurenkova   +5 more
doaj   +1 more source

Growth of TiO2 thin films by AP-MOCVD on stainless steel substrates for photocatalytic applications [PDF]

open access: yes, 2007
TiO2 thin films were deposited under atmospheric pressure by MOCVD in the temperature range 400–600 °C on stainless steel and Si(100) substrates. Titanium tetraisopropoxide (TTIP) was used as Ti and O source.
Duminica, Florin-Daniel   +2 more
core   +4 more sources

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