Preparation and magnetic properties of iron titanium oxide nanotube arrays

Guo, Mei; Zhao, Jianling; Xu, Xingru; Liu, Guodong; Wang, Xixin

doi:10.1016/j.ceramint.2013.11.023

Cited by 11 publications

(4 citation statements)

References 28 publications

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“…41-1432), respectively, consistent with the previous reports. 24,32 In Fig. 4d, the energy-dispersive spectrum (EDS) of Fe 2 TiO 5 also conrms the presence of Fe, O and Ti elements agreement with the above XPS analysis (Fig.…”

Section: Resultssupporting

confidence: 81%

Facile synthesis of porous Fe₂TiO₅microparticulates serving as anode material with enhanced electrochemical performances

Guo

Wang

et al. 2015

RSC Adv.

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Section: Resultssupporting

confidence: 81%

Facile synthesis of porous Fe₂TiO₅microparticulates serving as anode material with enhanced electrochemical performances

Guo

Wang

et al. 2015

RSC Adv.

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“…Until today, Ag 2 O-NT arrays were prepared by magnetron sputtering a TiAg layer onto Ti foil, followed by anodization, and then applied as functional coatings and biomaterials . TiO 2 NT arrays doped with Zr, , Cr, Mn, Cu, Mo, Ni, , Ta, Nb, ,, V, W, and Fe have been prepared by the one-step anodic oxidation of titanium–metal alloys. However, information regarding the photocatalytic activity of TiO 2 /Ag 2 O NTs prepared by the anodization of Ti–Ag alloys is still lacking in the literature.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytically Active TiO₂/Ag₂O Nanotube Arrays Interlaced with Silver Nanoparticles Obtained from the One-Step Anodic Oxidation of Ti–Ag Alloys

et al. 2017

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The development of a photocatalyst with remarkable activity to degrade pollutants in aqueous and gas phase requires visible light-responsive stable materials, easily organized in the form of a thin layer (to exclude the highly expensive separation step). In this work, we present a one-step strategy for synthesizing material in the form of a self-organized TiO2/Ag2O nanotube (NT) array interlaced with silver nanoparticles (as in a cake with raisins) that exhibited photoactivity significantly enhanced compared to that of pristine TiO2 NTs under both ultraviolet (UV) and visible (vis) irradiation. An NT array composed of a mixture of TiO2 and Ag2O and spiked with Ag nanoparticles was formed via the anodization of a Ti–Ag alloy in a one-step reaction. Silver NPs have been formed during the in situ generation of Ag ions and were (i) embedded in the NT walls, (ii) stuck on the external NT walls, and (iii) placed inside the NTs. The enhancement of photocatalytic efficiency can be ascribed to the existence of an optimal content of Ag2O and Ag NPs, which are responsible for decreasing the number of recombination centers. In contrast to UV–vis light, performance improvement under vis irradiation occurs with increasing Ag2O and Ag0 contents in the TiO2/Ag2O/Ag NTs as a result of the utilization of larger amounts of incident photons. The optimized samples reached phenol degradation rates of 0.50 and 2.89 μmol dm–3 min–1 under visible and UV light, respectively, which means degradation activities 3.8- and 2-fold greater than that of the reference sample, respectively, remained after four photodegradation cycles under UV light.

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“…During the creation of NTs, coupling with semiconductor oxides can be accomplished quickly and directly via the anodization of alloy foils containing Ti and a modifying metal. It was confirmed that obtaining NTs via electrochemical methods from alloys combined of Ti and a second metal [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ] is possible and promising in various applications.…”

Section: Introductionmentioning

confidence: 90%

Detailed Insight into Photocatalytic Inactivation of Pathogenic Bacteria in the Presence of Visible-Light-Active Multicomponent Photocatalysts

Kozak,

Mazierski,

Żebrowska

et al. 2024

Nanomaterials

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The use of heterogeneous photocatalysis in biologically contaminated water purification processes still requires the development of materials active in visible light, preferably in the form of thin films. Herein, we report nanotube structures made of TiO2/Ag2O/Au0, TiO2/Ag2O/PtOx, TiO2/Cu2O/Au0, and TiO2/Cu2O/PtOx obtained via one-step anodic oxidation of the titanium-based alloys (Ti94Ag5Au1, Ti94Cu5Pt1, Ti94Cu5Au1, and Ti94Ag5Pt1) possessing high visible light activity in the inactivation process of methicillin-susceptible S. aureus and other pathogenic bacteria—E. coli, Clostridium sp., and K. oxytoca. In the samples made from Ti-based alloys, metal/metal oxide nanoparticles were formed, which were located on the surface and inside the walls of the NTs. The obtained results showed that oxygen species produced at the surface of irradiated photocatalysts and the presence of copper and silver species in the photoactive layers both contributed to the inactivation of bacteria. Photocatalytic inactivation of E. coli, S. aureus, and Clostridium sp. was confirmed via TEM imaging of bacterium cell destruction and the detection of CO2 as a result of bacteria cell mineralization for the most active sample. These results suggest that the membrane ruptures as a result of the attack of active oxygen species, and then, both the membrane and the contents are mineralized to CO2.

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Preparation and magnetic properties of iron titanium oxide nanotube arrays

Cited by 11 publications

References 28 publications

Facile synthesis of porous Fe₂TiO₅microparticulates serving as anode material with enhanced electrochemical performances

Facile synthesis of porous Fe₂TiO₅microparticulates serving as anode material with enhanced electrochemical performances

Photocatalytically Active TiO₂/Ag₂O Nanotube Arrays Interlaced with Silver Nanoparticles Obtained from the One-Step Anodic Oxidation of Ti–Ag Alloys

Detailed Insight into Photocatalytic Inactivation of Pathogenic Bacteria in the Presence of Visible-Light-Active Multicomponent Photocatalysts

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Preparation and magnetic properties of iron titanium oxide nanotube arrays

Cited by 11 publications

References 28 publications

Facile synthesis of porous Fe2TiO5microparticulates serving as anode material with enhanced electrochemical performances

Facile synthesis of porous Fe2TiO5microparticulates serving as anode material with enhanced electrochemical performances

Photocatalytically Active TiO2/Ag2O Nanotube Arrays Interlaced with Silver Nanoparticles Obtained from the One-Step Anodic Oxidation of Ti–Ag Alloys

Detailed Insight into Photocatalytic Inactivation of Pathogenic Bacteria in the Presence of Visible-Light-Active Multicomponent Photocatalysts

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Facile synthesis of porous Fe₂TiO₅microparticulates serving as anode material with enhanced electrochemical performances

Facile synthesis of porous Fe₂TiO₅microparticulates serving as anode material with enhanced electrochemical performances

Photocatalytically Active TiO₂/Ag₂O Nanotube Arrays Interlaced with Silver Nanoparticles Obtained from the One-Step Anodic Oxidation of Ti–Ag Alloys