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Method for preparing antase titanium dioxide nanowire array by virtue of one-step process

A nanowire array, anatase phase technology, applied in the directions of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problem of no synthesis, and achieve low cost, simple preparation process, and controllable size. Effect

Active Publication Date: 2014-06-18
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no titanium dioxide nanowire that can synthesize phase-pure anatase in a weak acid system

Method used

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  • Method for preparing antase titanium dioxide nanowire array by virtue of one-step process
  • Method for preparing antase titanium dioxide nanowire array by virtue of one-step process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First, add 1g of crystal face inducer lithium acetate into the beaker, then add 35g of acetic acid, stir ultrasonically, then add 35g of nitrogen nitrogen dimethylacetamide, stir ultrasonically, and finally add 15g of tetrabutyl titanate, mix well Add it into the hydrothermal reaction kettle with the conductive substrate spin-coated with 0.5mol / L tetrabutyl titanate ethanol solution, put it in an oven and react at 160°C for 12h, after the reaction is over, open the reaction kettle and take out the sample , rinse the surface of the sample, and then dry it to obtain a nanowire array, and the length of the nanowire is 500nm. The SEM and XRD patterns of the prepared nanowire arrays are as follows: figure 1 and 2 shown, from figure 1 It can be seen that the nanowires grow uniformly, and the nanowires grow directly on the conductive substrate; from figure 2 It can be seen that this nanowire is an anatase nanowire.

Embodiment 2

[0022] First, add 1g of crystal face inducer sodium acetate into the beaker, then add 35g of acetic acid, stir ultrasonically, then add 35g of nitrogen nitrogen dimethylacetamide, stir ultrasonically, and finally add 15g of tetrabutyl titanate, mix well Add it into the hydrothermal reaction kettle with the conductive substrate spin-coated with 0.5mol / L tetrabutyl titanate ethanol solution, put it in an oven and react at 160°C for 12h, after the reaction is over, open the reaction kettle and take out the sample , rinse the sample surface, and then blow dry. The nanowire length is 2500nm.

Embodiment 3

[0024] First, add 1g of potassium acetate as a crystal face inducer into the beaker, then add 35g of acetic acid, stir ultrasonically, then add 35g of nitrogen nitrogen dimethylacetamide, stir ultrasonically, and finally add 15g of tetrabutyl titanate, mix well Add it into the hydrothermal reaction kettle with the conductive substrate spin-coated with 0.5mol / L tetrabutyl titanate ethanol solution, put it in an oven and react at 160°C for 60h, after the reaction is over, open the reaction kettle and take out the sample , rinse the sample surface, and then blow dry. The nanowire length is 2310nm.

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Abstract

The invention relates to a method for preparing an antase titanium dioxide nanowire array by virtue of a one-step process. The method comprises the steps of adding a certain amount of crystal face inducer to a container at first, secondly, adding acetic acid and ultrasonically stirring until dissolving, thirdly, adding N,N-dimethylacetamide and ultrasonically stirring until being even, finally, adding a certain amount of tetrabutyl titanate, evenly mixing and adding the obtained mixture to a hydrothermal reaction in which a conductive substrate subjected to spin-coating treatment previously, heating for reacting, taking out a sample after the reaction is finished, washing the surface of the sample, and drying to obtain the antase titanium dioxide nanowire array. The one-dimensional antase titanium dioxide nanowire array prepared by the method has the characteristics of controllable dimension, simple preparation process, low cost and the like. The one-dimensional antase titanium dioxide nanowire array can be used as a working electrode material for a dye-sensitized solar cell and a quantum dot solar cell.

Description

Technical field: [0001] The invention relates to a method for a titanium dioxide nanowire array; in particular, it relates to a method for preparing an anatase phase titanium dioxide nanowire array in one step. Background technique: [0002] Energy and the environment are two major themes of scientific research in the 21st century. Solving the current increasingly serious energy shortage and environmental pollution problems is an urgent need to improve the quality of life of the people, ensure national security and realize the sustainable development of human society. Battery technology based on solar energy utilization has great application potential in solving energy and environmental problems. TiO 2 Because of its low price, strong oxidation ability (universal), biological and chemical inertness (environmental protection, no secondary pollution), high efficiency and stability (anti-light corrosion and chemical corrosion), it is the most likely new type of solar cell mat...

Claims

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Application Information

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IPC IPC(8): C01G23/053B82Y30/00B82Y40/00C30B29/16C30B29/62C30B7/10
Inventor 暴宁钟查晨阳王仙吉成沈丽明张晓艳
Owner NANJING UNIV OF TECH
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