High-density NiTiO3/TiO2 nanotubes synthesized through sol–gel method using well-ordered TiO2 membranes as template

Dong, Fang; Huang, Kelong; Liu, Suqin; Luo, Zhiping; Qing, Xiaoxia; Zhang, Qiguang

doi:10.1016/j.jallcom.2010.02.150

Cited by 38 publications

(15 citation statements)

References 40 publications

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“…Therefore, it can be excited only under ultraviolet irradiation, which merely accounts for about 5% of the solar radiation at the Earth's surface compared to the visible light occupying about 45%. To overcome this shortcoming of TiO 2 , many attempts have been adopted to narrow the wide band gap of TiO 2 and suppress the recombination of photogenerated carries, such as doping with metal or non-metal ions , coupling with low band gap semiconductor [38,39], dye sensitization [40,41], surface modification and supporting noble metal [42,43].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of N-doped TiO2 nanotube arrays by N2-plasma for visible light-driven photocatalysis

Liu

Zheng

et al. 2011

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Characteristics of N-doped TiO2 nanotube arrays by N2-plasma for visible light-driven photocatalysis

Liu

Zheng

et al. 2011

Journal of Alloys and Compounds

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“…Other etchants have been used to open the closed bottom ends of TiO 2 NT arrays (detached by other techniques than voltage decrease/increase in these cases): dilute HF/H 2 SO 4 solution 17, 18 , NH 4 F/H 2 SO 4 solution 30 and HF vapors 16 . However, the attack on the TiO 2 membrane is harsher with these etchants and it is thus more difficult to control it over the whole surface.…”

Section: Resultsmentioning

confidence: 99%

Facile synthesis of robust free-standing TiO2 nanotubular membranes for biofiltration applications

Schweicher

Desai

2013

J Appl Electrochem

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Robust monodisperse nanoporous membranes have a wide range of biotechnological applications, but are often difficult or costly to fabricate. Here, a simple technique is reported to produce free-standing TiO2 nanotubular membranes with through-hole morphology. It consists in a 3-step anodization procedure carried out at room temperature on a Ti foil. The first anodization (1 h at 80 V) is used to pattern the surface of the metallic foil. Then, the second anodization (24 h at 80 V) produces the array of TiO2 nanotubes that will constitute the final membrane. A higher voltage anodization (3-5 minutes at 180 V) is finally applied to detach the TiO2 nanotubular layer from the underlying Ti foil. In order to completely remove the barrier layer that obstructs some pores of the membrane, the latter is etched 2 minutes in a buffered oxide etch solution. The overall process produces 60 μm-thick TiO2 nanotubular membranes with tube openings of 110 nm on one side and 73 nm on the other side. The through-hole morphology of these membranes has been verified by performing diffusion experiments with glucose, insulin and immunoglobulin G where in differences in diffusion rate are observed based on molecular weight. Such biocompatible TiO2 nanotubular membranes, with controlled pore size and morphology, have broad biotechnological and biomedical applications.

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“…To improve the ATO ordering on the surface, two-step anodization may be applied. 171 This process involves two separate anodization procedures, as sketched in Figure 29. Starting form the Ti film with rough top surface ( Fig.…”

Section: Tio 2 Interference Membrane and Nt Filmmentioning

confidence: 99%

Fabrication and Characterization of Highly-Ordered Valve-Metal Oxide Nanotubes and Their Derivative Nanostructures

Chen¹,

Dong²,

Luo³

2012

Rev Nanosci Nanotech

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Highly ordered and vertically aligned straight nanotubes can be fabricated using an electrochemical anodization method on the valve metal surfaces, and a variety of nanostructures can be derived from these nanotubes. These nanomaterials have found a wide range of applications, especially in the fields of renewable energy generation and storage. This review provides step-by-step guidelines about the fabrication details and parameters of these nanomaterials, focusing on the systems originated from the metals of Al, Ti and Zr. Based on the fabrication of these nanotubes, different methods were developed to produce uniform metal nanowires using electrodeposition and mechanical injection, nanospheres and nanowhiskers on the top surfaces of the nanotubes, and dye-sensitized solar cells using anodic Ti oxide. These nanostructures and their phase transitions were characterized in detail by X-ray diffraction and electron microscopy techniques. Finally, towards the commercial applications of the nanotube related materials, fabrication of large-scale porous films was proposed.

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High-density NiTiO3/TiO2 nanotubes synthesized through sol–gel method using well-ordered TiO2 membranes as template

Cited by 38 publications

References 40 publications

Characteristics of N-doped TiO2 nanotube arrays by N2-plasma for visible light-driven photocatalysis

Characteristics of N-doped TiO2 nanotube arrays by N2-plasma for visible light-driven photocatalysis

Facile synthesis of robust free-standing TiO2 nanotubular membranes for biofiltration applications

Fabrication and Characterization of Highly-Ordered Valve-Metal Oxide Nanotubes and Their Derivative Nanostructures

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