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Preparation method of self-cleaning Bi2Ti2O7/TiO2 nanowire array composite film with visible-light response

A nanowire array and self-cleaning technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of resource consumption, maintaining clean surfaces, high risks, etc., and achieve low cost , easy to separate, good stability

Inactive Publication Date: 2015-03-25
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the glass cleaning of modern high-rise buildings needs to be done manually, which consumes resources and has high risks, and cannot rely on the two natural forces of sunlight and rain to maintain the cleanliness of the surface. Self-cleaning Bi with visible light response 2 Ti 2 o 7 / TiO 2 Preparation method of nanowire array composite thin film

Method used

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  • Preparation method of self-cleaning Bi2Ti2O7/TiO2 nanowire array composite film with visible-light response
  • Preparation method of self-cleaning Bi2Ti2O7/TiO2 nanowire array composite film with visible-light response
  • Preparation method of self-cleaning Bi2Ti2O7/TiO2 nanowire array composite film with visible-light response

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specific Embodiment approach 1

[0024] Specific implementation mode 1: This implementation mode is a self-cleaning Bi with visible light response 2 Ti 2 o 7 / TiO 2 The preparation method of the nanowire array composite film is specifically completed according to the following steps:

[0025] 1. Preparation of a glass substrate loaded with a titanium dioxide nanowire array precursor film: Dissolve the titanium source in absolute ethanol, then add polyol, and then stir at a stirring speed of 100r / min to 300r / min for 15min to 30min to obtain Mixed solution A; move the mixed solution A into the polytetrafluoroethylene reactor, and then put the clean glass substrate into the polytetrafluoroethylene reactor at an angle of 60° to the axis of the polytetrafluoroethylene reactor , then put the sealed polytetrafluoroethylene reactor into a drying oven with a temperature of 180°C to 200°C for heating for 10h to 24h, then cool the sealed polytetrafluoroethylene reactor to room temperature naturally, and place the gla...

specific Embodiment approach 2

[0037] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the titanium source described in step 1 is isopropyl phthalate or tetrabutyl titanate. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the polyhydric alcohol described in step 1 is glycerol. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method of a self-cleaning Bi2Ti2O7 / TiO2 nanowire array composite film with visible-light response, relating to a preparation method of a nanowire array composite film. The invention aims at solving the problem that the glass cleaning of the modern high buildings needs to be completed manually so that the resources are consumed, relatively high risk exists and the elements of sunshine and rainwater cannot be utilized to maintain the surface cleaning. The preparation method comprises the following steps: 1, preparing a titanium dioxide nanowire array precursor film-loaded glass substrate; and 2, preparing a Bi2Ti2O7 / TiO2 nanowire array composite film so as to obtain the self-cleaning Bi2Ti2O7 / TiO2 nanowire array composite film with visible-light response. The preparation method is completed under simple hydrothermal conditions, so that the synthesis method is simple and the cost is low. According to the preparation method, the self-cleaning Bi2Ti2O7 / TiO2 nanowire array composite film with visible-light response can be obtained.

Description

technical field [0001] The invention relates to a preparation method of a nanowire array composite thin film. Background technique [0002] With the deterioration of the living environment of human beings, the problem of environmental pollution has become one of the problems that people pay attention to and urgently need to be solved. In order to seriously control pollution problems, people have adopted various methods and measures. At present, common methods such as physical adsorption method have been applied to actual pollution control and control, but these methods still have low purification efficiency, secondary pollution, and capital expenditure. Consumption and other issues. Therefore, in-depth research on more economical and effective pollution control technologies and methods has become a key research topic in the field of environmental pollution control. [0003] With the development of social economy, glass is more and more widely used in modern economic constr...

Claims

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Application Information

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IPC IPC(8): C03C17/34B01J23/18
CPCC03C17/006C03C17/256C03C2217/29C03C2217/70C03C2218/111C03C2218/32
Inventor 付宏刚刘航田国辉陈亚杰
Owner HEILONGJIANG UNIV
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