Hence, to create a suitable nanocomposite for removal of pollutants, BiOI and Ag6Si2O7 particles were anchored on the oxygen vacancy rich-TiO2 (abbreviated as OVs-TO) through a simple approach to construct the OVs-TO/BiOI/Ag6Si2O7 nanocomposites. Then, various structural features of the ...
& Yan, X. Oxygen Vacancy-Enhanced Visible Light-driven Photocatalytic Activity of TiO2 Sphere-W18O49 Nanowire Bundle Heterojunction. Appl. Catal. A: Gen ... - 《Applied Catalysis A General》 被引量: 5发表: 2015年 Design of visible-light photocatalysts by coupling of narrow bandgap semiconductor...
This is moti- vated by our recent demonstration that specific capacitance of TiO2 nanostructures are significantly improved by increased donor densities resulted from introduction of oxygen vacancy states via thermal treatment in hydrogen atmosphere20. For the design of high- performance photovoltaic ...
A first-principles theoretical simulation on the electronic structures and optical absorption properties for O vacancy and Ni impurity in TiO2 photocatalystsZhouZ.LiM.GuoL.ingentaconnectOptics CommunicationsA first-principles theoretical simulation on the electronic structures and optical absorption properties ...
According to the charge transition levels of the oxygen vacancies in Ta2O5 and TiO2, the oxygen vacancies are stabilized at the -2 charged state. We propose to introduce interfacial dopants to shift the system Fermi energies downward so that the +2 charged oxygen vacancy can be stable, which...
2 O 2 ambient decrease in the temperature range 20 ℃ ~ 300 ℃,but increase in the temperature range 300 ℃ ~ 650 ℃. This is mainly because the concentration of oxygen vacancy bring down after oxidation treatment in lower temperature,and the concentration of 瓷器...
Room-temperature ferromagnetism in well-aligned Zn[sub 1−x]Co[sub x]O nanorods Soft x-ray magnetic circular dichroism (XMCD) measurements at the CoL2,3edges of Co-doped rutileTiO2at room temperature revealed clear multiplet features c... JJ Wu,SC Liu,MH Yang 被引量: 75发表: 2004年 ...
On one hand, cationic vacancies can result in half-metallicity and evident electron delocalization, which is closely related to the decrease of band gap close to Fermi level and increase in the electron density of states, leading to conductivity improvement of vacancy-enriched materials. On the ...
Oxygen VacancyPoint defects, mainly oxygen vacancies and dopants in TiO2 are reviewed on their effects on CO2 photoreduction with H2O. Diverse characterization methods are available to investigate the type and nature of point defects. Point defects can affect TiO2 properties including adsorption ability,...
The energy cost to form an oxygen vacancy in the bulk is estimated to be of the order of 10 eV, whereas that corresponding to the formation of Al vacancies is found to be at least a 30% larger. The relaxation of the material is rather small for both defects. The removal of an ...