Branched heterogeneous hydrogenated titanium dioxide nanorod array electrode and preparation method thereof

A technology of hydrogenated titanium dioxide and nanorod arrays is applied in the direction of coating, etc., to achieve the effects of less environmental pollution, simple operation steps, and simple method.

Inactive Publication Date: 2016-02-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the combination of branched structure and hydrogenation treatment to prepare a branched heterogeneous hydrogenated titania nanorod array has not been reported at home and abroad.

Method used

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  • Branched heterogeneous hydrogenated titanium dioxide nanorod array electrode and preparation method thereof
  • Branched heterogeneous hydrogenated titanium dioxide nanorod array electrode and preparation method thereof
  • Branched heterogeneous hydrogenated titanium dioxide nanorod array electrode and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] (1) Put the 2cm×5cm FTO conductive glass into acetone, deionized water and ethanol to clean it ultrasonically, and then dry it for later use.

[0030] (2) At room temperature, in a polytetrafluoroethylene lining, mix 50 g of deionized water and 59 g of concentrated hydrochloric acid (36.5 wt%) and stir for 5 minutes, then add 1.2 g of tetrabutyl titanate into the mixed solution and stir for 5 minutes to form The mass ratio is 100:118:2.4 hydrothermal preparation of titanium dioxide nanorod precursor solution. Put 2 cleaned FTO conductive glass pieces into the Teflon lining, put the glass pieces obliquely downward, and the conductive side faces down. After sealing the hydrothermal kettle, put it into an oven to carry out hydrothermal reaction at 170° C. for 6 hours. After the hydrothermal heat is over, turn off the oven, cool to room temperature in the air, take out the FTO conductive glass, wash it with ethanol and deionized water, and obtain the rutile TiO 2 Nanorod ...

Embodiment 2

[0035] (1) Put the 2cm×5cm FTO conductive glass into acetone, deionized water and ethanol to clean it ultrasonically, and then dry it for later use.

[0036] (2) At room temperature, in a polytetrafluoroethylene lining, mix 50 g of deionized water and 60 g of concentrated hydrochloric acid (36.5 wt%) and stir for 5 min, then add 1.5 g of tetrabutyl titanate into the mixed solution and stir for 5 min to form The mass ratio is 100:120:3.0 hydrothermal preparation of titanium dioxide nanorod precursor. Put 2 cleaned FTO conductive glass pieces into the Teflon lining, put the glass pieces obliquely downward, and the conductive side faces down. After sealing the hydrothermal kettle, put it into an oven for hydrothermal reaction, and the reaction temperature was 150° C. for 8 hours. After the hydrothermal heat is over, turn off the oven, cool to room temperature in the air, take out the FTO conductive glass, wash it with ethanol and deionized water, and obtain the rutile TiO 2 Nan...

Embodiment 3

[0041] (1) Put the 2cm×5cm FTO conductive glass into acetone, deionized water and ethanol to clean it ultrasonically, and then dry it for later use.

[0042] (2) At room temperature, in a polytetrafluoroethylene lining, mix 50 g of deionized water and 50 g of concentrated hydrochloric acid (36.5 wt%) and stir for 5 minutes, then add 1.2 g of tetrabutyl titanate into the mixed solution and stir for 5 minutes to form The mass ratio is 100:100:2.4 hydrothermal preparation of titanium dioxide nanorod precursor solution. Put 2 cleaned FTO conductive glass pieces into the Teflon lining, put the glass pieces obliquely downward, and the conductive side faces down. After sealing the hydrothermal kettle, put it into an oven for hydrothermal reaction at 180° C. for 5 hours. After the hydrothermal heat is over, turn off the oven, cool to room temperature in the air, take out the FTO conductive glass, wash it with ethanol and deionized water, and obtain the rutile TiO 2 Nanorod array thi...

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Abstract

The invention belongs to the technical field of functional materials, and discloses a branched heterogeneous hydrogenated titanium dioxide nanorod array electrode and a preparation method thereof. The preparation method is as below: subjecting FTO conducting glass to ultrasonic pretreatment, placing the conducting glass in a mixed solution of deionized water, hydrochloric acid and tetrabutyl titanate, and conducting water thermal reaction at 150-200 DEG C to prepare the TiO2 nanorod array; then annealing the TiO2 nanorod array in a mixed atmosphere of hydrogen and argon at 300 to 500 DEG C to obtain a hydrogenated TiO2 nanorod array electrode; then putting the electrode into a mixed solution of deionized water, hydrochloric acid and titanium trichloride solution, reacting at 60-100 DEG C for 0.5-3 h to obtain the branched hydrogenated TiO2 nanorod array electrode. The method provided by the invention has the advantages of simple operation, short time, cheap and easily available raw materials, and low preparation cost; and the obtained electrode gains greatly improved photoelectric properties and has good application prospect in the field of hydrogen production from photocatalytic decomposition of water.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a branched heterogeneous hydrogenated titanium dioxide nanorod array electrode and a preparation method thereof. Background technique [0002] With the development of human society, energy problems are becoming more and more serious, and people urgently need to find clean energy that can replace non-renewable energy. Hydrogen has high calorific value, large reserves, no pollution, and is renewable. Therefore, hydrogen energy has high hopes as a clean energy. Among methods such as electrolysis of water, solar water splitting, biological hydrogen production, and hydrogen production in chemical and metallurgical processes, solar water splitting is considered an ideal hydrogen production method because of its low price, no pollution, and sustainable utilization. Among many photocatalytic materials, TiO 2 It has good photocatalytic performance, photoelectric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
CPCC03C17/3417C03C2217/94C03C2218/111C03C2218/32
Inventor 彭峰王秀杰张声森王红娟余皓张山青
Owner SOUTH CHINA UNIV OF TECH
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