Results 41 to 50 of about 112,673 (326)

Facile Formation of Anatase/Rutile TiO2 Nanocomposites with Enhanced Photocatalytic Activity

open access: yesMolecules, 2019
Anatase/rutile mixed-phase TiO2 nanoparticles were synthesized through a simple sol-gel route with further calcination using inexpensive titanium tetrachloride as a titanium source, which effectively reduces the production cost.
Jing He   +8 more
semanticscholar   +1 more source

TiO2 ceramics prepared using Pechini synthesis and laser sintering [PDF]

open access: yesProcessing and Application of Ceramics, 2018
Nowadays, the laser sintering process has attracted the attention of researchers owing to advantages such as the possibility of using very high heating and cooling rates and the possibility of sintering materials with high melting point.
Tiago Cordeiro Oliveira   +1 more
doaj   +1 more source

Phase-Selective Synthesis of Anatase and Rutile TiO2 Nanocrystals and Their Impacts on Grapevine Leaves: Accumulation of Mineral Nutrients and Triggering the Plant Defense

open access: yesNanomaterials, 2022
Titanium dioxide nanocrystals (TiO2 NCs), through their photocatalytic activity, are able to generate charge carriers and induce the formation of various reactive oxygen species (ROS) in the presence of O2 and H2O.
László Kőrösi   +3 more
doaj   +1 more source

Ab Initio Study of Phase Stability in Doped TiO2

open access: yes, 2012
Ab-initio density functional theory (DFT) calculations of the relative stability of anatase and rutile polymorphs of TiO2 were carried using all-electron atomic orbitals methods with local density approximation (LDA).
Assadi, Mohammed H. N.   +4 more
core   +1 more source

The effect of sintering temperatures of TiO2(B)-nanotubes on its microstructure [PDF]

open access: yesScience of Sintering, 2018
Titanium dioxide (TiO2)-nanotubes were prepared by a simple technique reflux. The morphologies and microstructures of nanotubes were characterized by high resolution scanning electron microscopy (HRSEM), high resolution transmission electron ...
Sutrisno H., Siswani E.D., Budiasih K.S.
doaj   +1 more source

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

High-temperature catalyst supports and ceramic membranes: Metastability and particle packing [PDF]

open access: yes, 1997
Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at ...
Burggraaf, Anthonie J.   +5 more
core   +2 more sources

Ecological and Health Risks from Trace Elements Contamination in Soils at the Rutile Bearing Area of Akonolinga, Cameroon

open access: yesApplied Sciences
This study evaluates the concentrations of trace elements (TEs) in soils from the rutile deposit area of Akonolinga, Cameroon, and analyzes the associated health risks. A total of 25 samples were analyzed using flame atomic absorption spectrometry (FAAS).
Fayette Kitcha Sime   +10 more
doaj   +1 more source

Atomic-resolution imaging of rutile TiO2(110)-(1 × 2) reconstructed surface by non-contact atomic force microscopy

open access: yesBeilstein Journal of Nanotechnology, 2020
The structure of the rutile TiO2(110)-(1 × 2) reconstructed surface is a phase induced by oxygen reduction. There is ongoing debate about the (1 × 2) reconstruction, because it cannot be clarified whether the (1 × 2) structure is formed over a wide area ...
Daiki Katsube   +3 more
doaj   +1 more source

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

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