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Preparation method of one-dimensional metal titanate nanorods

A technology of titanate and nanorods, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of low roughness factor, small specific surface area, uneven size and shape, etc., and achieve obvious pore size distribution and large roughness factor, the effect of good stability

Inactive Publication Date: 2013-04-03
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problems of relatively small specific surface area, low roughness factor, and uneven size and shape of titanate photocatalyst materials prepared in the prior art, and provides a method for preparing one-dimensional metal titanate nanorods

Method used

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  • Preparation method of one-dimensional metal titanate nanorods
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  • Preparation method of one-dimensional metal titanate nanorods

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specific Embodiment approach 1

[0010] Embodiment 1: In this embodiment, a method for preparing a one-dimensional metal titanate nanorod is specifically completed according to the following steps:

[0011] 1. Preparation of metal salt ethylene glycol solution: Dissolve the inorganic metal salt completely in the alcohol solvent at a temperature of 25°C~35°C, and prepare an inorganic salt with a molar concentration of metal ions of 0.0025mol / L~0.01mol / L Alcoholic solution of metal salt; 2. Add titanium source: add titanium source to the alcohol solution of inorganic metal salt prepared in step 1 at a temperature of 25°C~35°C, and stir at a stirring speed of 100r / min~300r / min Stirring under the condition of min for 1h~3h, the precursor suspension was obtained; 3. Centrifugal separation and washing: the precursor suspension obtained in step 2 was centrifuged to obtain the metal titanate nanorod precursor. Wash the metal titanate nanorod precursor with absolute ethanol for 2 to 5 times, and then centrifuge at a s...

specific Embodiment approach 2

[0017] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the alcohol solvent described in step one is ethylene glycol, isopropanol, 1,3-propylene glycol, polyethylene glycol 400 and polyethylene glycol One of 600 or a mixture of several of them. Others are the same as the first embodiment.

[0018] When the alcohol solvent described in this embodiment is a mixture, the components are mixed in any ratio.

specific Embodiment approach 3

[0019] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the inorganic metal salt described in step one is magnesium acetate, cobalt acetate, zinc acetate, aluminum acetate, calcium acetate and manganese acetate One or a mixture of several of them. Others are the same as those in Embodiment 1 or 2.

[0020] When the inorganic metal salt described in this embodiment is a mixture, the components are mixed in any ratio.

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Abstract

A preparation method of one-dimensional metal titanate nanorods relates to a preparation method of titanate nanorods, and mainly solves the problems that a titanate photocatalyst material prepared in the prior art has a relatively small specific surface area, a relatively low roughness factor and non-uniform size and shape. The preparation method of one-dimensional metal titanate nanorods comprises the following specific steps: 1, preparing a metal salt ethylene glycol solution; 2, adding a titanium source; 3, centrifuging and eluting; 4, drying; and 5, roasting to obtain the one-dimensional metal titanate nanorods. The preparation method has the advantages as follows: 1, the specific surface area of the prepared one-dimensional metal titanate nanorod photocatalyst is 2-43 times of the surface area of the titanate nanoparticle photocatalyst material prepared in the prior art; and 2, the prepared one-dimensional metal titanate nanorod photocatalyst has an apparent pore size distribution and a relatively large roughness factor. The preparation method is mainly applied to preparation of the one-dimensional titanate nanorods.

Description

technical field [0001] The invention relates to a preparation method of titanate nanorods. Background technique [0002] With the progress of human civilization, traditional fossil energy is facing exhaustion and shortage, so finding an alternative energy source with high efficiency and low pollution has become a top priority for the continuation of human civilization and social development. Solar energy and hydrogen energy are the cleanest and most efficient new energy sources that people have discovered so far. The technology of hydrogen production by photolysis of water using solar energy can provide human beings with efficient, environmentally friendly future energy, and has attracted widespread attention in recent years. [0003] In the past forty years, people have been trying to find an efficient, cheap and stable photocatalyst for the photolysis of water to produce hydrogen, the most prominent of which are niobate, tantalate, titanate and sulfur things. However, ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/00C01G51/00B82Y30/00B82Y40/00B01J23/06B01J21/10B01J23/75B01J35/10
Inventor 付宏刚曲阳田国辉周卫姜乐孟祥颖
Owner HEILONGJIANG UNIV
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