Physiological responses of Spirulina platensis to nanoparticles of TiO2 and citrate [PDF]
Zīst/shināsī-i Giyāhī-i Īrān, 2022 In order to investigate the stimulating effect of TiO2 nanoparticles on the growth rate and the increase of some metabolites in the microalgae Spirulina platensis, the anatase and rutile forms of the TiO2 nanoparticle were compared to the bulk form, in ...
Nahid Pourbozorgi Rudsari +2 more
doaj +1 more source
Ab Initio Study of Phase Stability in Doped TiO2
, 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
Textural evolution and phase transformation in titania membranes: Part 1. -unsupported membranes [PDF]
, 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
Highly Active under VIS Light M/TiO2 Photocatalysts Prepared by Single-Step Synthesis
Applied Sciences, 2023 A single-step impregnation approach is investigated as a synthetic route for photocatalyst synthesis active under visible light. The as-derived photocatalysts exhibited very high degradation rates towards methylene blue (MB) decolorization under visible ...
Olga Thoda +4 more
doaj +1 more source
Geosciences, 2019 U-Pb dating by LA ICP-MS is one of the most popular and successful isotopic techniques available to the Earth Sciences to constrain timing and rates of geological processes thanks to its high spatial resolution, good precision (absolute U/Pb age ...
Laura Bracciali
doaj +1 more source
Origin of the different conductive behavior in pentavalent-ion-doped anatase and rutile TiO$_2$
, 2012 The electronic properties of pentavalent-ion (Nb$^{5+}$, Ta$^{5+}$, and I$^{5+}$) doped anatase and rutile TiO$_2$ are studied using spin-polarized GGA+\emph{U} calculations.
Baibiao Huang +9 more
core +1 more source
High-temperature catalyst supports and ceramic membranes: Metastability and particle packing [PDF]
, 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
Reversible formation-dissociation of polaron in rutile driven by electric field
Materials Research Letters, 2018 Density functional theory with Hubbard U correction is employed to study the polaron in rutile under external electric fields. It is found that electric-field-induced displacements of the ions enhance the sampling of the polaron configurations, which is ...
Linggang Zhu, Jian Zhou, Zhimei Sun
doaj +1 more source
Nanostructured titanium dioxide-based photocatalysts for self-cleaning concrete: аssessment of effects of phase composition on photocatalytic activity of TiO2 [PDF]
Нанотехнологии в строительствеIntroduction. 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
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source