Results 71 to 80 of about 9,726 (203)

Strain and grain size of TiO2 nanoparticles from TEM, Raman spectroscopy and XRD: The revisiting of the Williamson-Hall plot method

open access: yesResults in Physics, 2018
The Williamson-Hall (W-H) equation, which has been used to obtain relative crystallite sizes and strains between samples since 1962, is revisited. A modified W-H equation is derived which takes into account the Scherrer equation, first published in 1918,
Pierre M. Kibasomba   +6 more
doaj   +1 more source

Low‐Content Ru Catalysts for Efficient CO2 Methanation

open access: yesChemCatChem, Volume 18, Issue 2, 28 January 2026.
Five Ru‐based catalysts were synthesized and tested for CO2 methanation. Ru/TiO2 showed the highest performance and was further investigated using operando FT‐IR and DRIFTS. A mechanistic interpretation was proposed, and a kinetic model was developed and validated.
Andrea Rizzetto   +7 more
wiley   +1 more source

Nanoparticles of transition metals oxides with application potential [PDF]

open access: yes, 2009
Tato práce se zabývá nejvíce používanými metodami přípravy a fyzikálními vlastnostmi nanočástic přechodných kovů. Fyzikální vlastnosti nanočástic mohou být kontrolovány pomocí velikosti a tvaru částic.
Burianová, Simona
core   +1 more source

Preparation of TiO2‐x Via Inorganic Chemical Reduction Method and its Applications in Solar‐Driven Photothermal Water Evaporation: Progress and Prospects

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 1, January 2026.
Reduced TiO2‐x has been widely studied because of its unique properties. This paper reviewed the preparation of TiO2‐x by inorganic chemical reduction method and the applications for solar‐driven photothermal conversion water evaporation. The development prospects are prospected. Global water scarcity and pollution present critical challenges for human
Ting Wang   +5 more
wiley   +1 more source

Supraparticles from Titania Nanoplates: Assembly, Photocatalytic Polymer Encapsulation, Functionalization, and Multifunctional Hybrid Supraparticles

open access: yesSmall Structures, Volume 7, Issue 1, January 2026.
Titania nanoplates are assembled into supraparticles (SPs) using an emulsion‐based technique. These SPs are encapsulated within a polystyrene shell, applying a surface‐initiated photocatalyzed radical polymerization procedure. By varying the duration of UV light exposure, the organic fraction of the polymer is tunable.
Jana Struck   +8 more
wiley   +1 more source

Photocatalytic Fe-doped n-TiO2: From synthesis to utilization of in vitro cell models for screening human and environmental nanosafety [PDF]

open access: yes, 2017
The utilization of different types nanomaterials (NMs) in environmental remediation and wastewatertreatment requires information on the potential harmful effects on human and environmental health.
Balbi, Balbi   +6 more
core   +1 more source

Recent Advances in Photocatalytic Degradation of Caffeine: Overview of the Mechanism and Photocatalysts

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
Caffeine, a widely consumed stimulant, has emerged as a recurring and persistent contaminant in aquatic environments, including surface water, groundwater and wastewater effluents. Its continuous presence poses ecological risks due to its bioactivity and resistance to conventional treatment methods.
Anusha D. Shetty   +3 more
wiley   +1 more source

Gas‐ and Liquid‐Phase Catalysts for Solar‐Driven Catalytic Ammonia Decomposition

open access: yesAdvanced Sustainable Systems, Volume 9, Issue 12, December 2025.
Amid the drive toward carbon‐neutral hydrogen, this review analyzes photocatalytic ammonia decomposition in gas‐ and liquid‐phase systems. It examines catalyst families—TiO2, ZnO, Ru, single‐atom, and antenna–reactor designs. This study summarizes advances in bandgap tuning, active‐site and cocatalyst engineering, photothermal coupling, and machine ...
Zhuohao Yang   +4 more
wiley   +1 more source

Induction of Apoptosis and Inhibition of Invasion in Gastric Cancer Cells by Titanium Dioxide Nanoparticles

open access: yesOman Medical Journal, 2018
Objectives: Nanoparticles induce oxidative stress in cells and damage them through the cell membrane and DNA damage, eventually resulting in cell death.
Hadi Hasanzadeh   +4 more
doaj   +1 more source

Pressure-Induced Phase Transitions of Natural Brookite [PDF]

open access: yesACS Earth and Space Chemistry, 2019
The structures and stabilities of the high-pressure phases of titania (TiO2) are of great interest in the earth sciences, as these phases are the accessible analogs of component minerals in the earth’s mantle. Brookite is a natural titania mineral, whose bulk phase is hard to synthesize in the laboratory, and its phase behavior at very high pressure ...
Weixin Liu   +7 more
openaire   +3 more sources

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