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Coaxial double-pipe titanium dioxide nano-pipe array thin film and preparation method thereof

A technology of nanotube array and titanium dioxide, which is applied in the direction of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems that have not yet been reported on the nanotube array structure, and achieve excellent photocatalytic performance, high biological activity, Significant semiconductor performance effects

Inactive Publication Date: 2008-09-10
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there have been no reports of nanotube array structures with coaxial or other heterogeneous structures.

Method used

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  • Coaxial double-pipe titanium dioxide nano-pipe array thin film and preparation method thereof
  • Coaxial double-pipe titanium dioxide nano-pipe array thin film and preparation method thereof
  • Coaxial double-pipe titanium dioxide nano-pipe array thin film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Mechanically process the TLM sheet into a sheet of 500mm×100mm×1mm, polish it brightly with 150#, 600#, 1000# sandpaper, then ultrasonically degrease in ethanol and acetone, clean with deionized water, 70℃~80℃ Dry in a hot air oven; applied voltage 50V, in 0.25wt%NH 4 F, 1.0wt%H 2 O in ethylene glycol solution, anodized for 4320min to obtain nanotube arrays. The nanotube array was washed several times with deionized water, placed in a drying oven, and dried at 70° C. to 80° C. for 1 hour. Then, the obtained nanotube array thin film. The obtained nanotube array film was removed from the substrate, fixed on a hollow PVC plate, and then the PVC was placed on the mouth of a plastic bottle filled with saturated HF acid, so that the bottom surface of the nanotube array was in an HF acid atmosphere. The gas removes the barrier layer at the bottom of the nanotube array film, and the FE-SEM image of the nanotube array prepared by this process, as shown in figure 1 shown.

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Embodiment 2

[0027]Mechanically process the TLM sheet into a sheet of 300mm×20mm×1mm, polish it brightly with 150#, 600#, 1000# sandpaper, then ultrasonically degrease in ethanol and acetone, clean with deionized water, 70℃~80℃ Dry in a hot air oven; applied voltage 40V, in 0.25wt% NH 4 F, 1.0wt%H 2 Coaxial TiO doped with Nb and other elements prepared by anodizing in ethylene glycol solution of O for 480 min 2 array of nanotubes. The nanotube array was washed several times with deionized water, placed in a drying oven, and dried at 70° C. to 80° C. for 1 hour. The EDS energy spectrum of the nanotube array film prepared by this process is as follows image 3 shown.

[0028] The coaxial TiO doped with elements such as Nb prepared on the surface of the TLM alloy in this example 2 The nanotube array film can improve the growth and attachment ability of osteoblasts on the surface of TLM alloy. Compared with Ti alloy surface nanotube arrays, coaxial TiO 2 Osteoblasts grow more efficientl...

Embodiment 3

[0030] Mechanically process the TLM sheet into a sheet of 300mm×20mm×1mm, polish it brightly with 150#, 600#, 1000# sandpaper, then ultrasonically degrease in ethanol and acetone, clean with deionized water, 70℃~80℃ Dry in a hot air oven; applied voltage 50V, in 0.25wt%NH 4 F, 1.0wt%H 2 Coaxial nanotube array film prepared by anodizing in ethylene glycol solution of O for 4320min. The nanotube array thin film was washed with deionized water several times, placed in a drying oven, and dried at 70° C. to 80° C. for 1 hour. The sample was annealed in an oxygen atmosphere in a muffle furnace, the heating and cooling rate was controlled at 1 °C / min, the constant temperature point was 500 °C, and the temperature was kept for 120 min. The X-ray diffraction pattern of the nanotube array prepared by this process is as follows: Figure 4 shown.

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Abstract

The invention provides a coaxial double-pipe titania nano pipe array membrane and a preparation method for the coaxial double-pipe titania nano pipe array membrane. The invention is characterized in that: the coaxial nano pipe array consists of the following chemical compositions by weight percent: 6.97 to 9.07 percent of niobium, 2.08 to 2.25 percent of molybdenum, 0.35 to 0.82 percent of zirconium, 48.49 to 49.35 percent of oxygen, residual titanium and other unavoidable impurities. The coaxial double-pipe titania nano pipe array membrane has unique coaxial nano pipe structural characteristics and obvious semiconductor comprehensive performances and particularly has good photocatalysis performance; moreover, the membrane has high biological activity and can be mainly applied in the photocatalysis and tissue engineering field; simultaneously, the membrane can be widely applied in the fields such as solar batteries, filtration and separation, sensors, micro-nano devices, optical devices and so on.

Description

technical field [0001] The invention belongs to the technical field of inorganic semiconductor nanometer materials, and relates to a coaxial double-tube titanium dioxide nanotube array film and a preparation method thereof. Background technique [0002] TiO 2 With good photoactivity, biocompatibility, weather resistance, high chemical stability, thermal stability; and non-toxic, non-corrosive, etc., it has become one of the research hotspots in the field of functional materials. Due to nano TiO 2 It has a high surface area, more excellent physical and chemical properties, and its potential application fields are broader. At present, many scientific research institutions have carried out its application research in the fields of energy, environmental protection, and biological tissue engineering. [0003] Nano-TiO 2 There are many forms of functional materials, such as nano-films, nanoparticles, nano-wires and so on. The purpose of preparing these different forms of nanos...

Claims

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Application Information

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IPC IPC(8): C25D11/26C30B30/02C30B29/16C01G23/047
Inventor 张文彦奚正平李广忠李亚宁付安庆
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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