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Preparation method of glass fiber group yttrium doped titanium dioxide photo-degradation catalyst filament

A glass fiber filament and glass fiber technology, applied in the field of preparation of glass fiber-based yttrium-doped titanium dioxide photodegradation catalyst filament, can solve the problems of doping and degradation efficiency to be improved, and achieve the effect of eliminating pollution and improving photodegradation efficiency

Inactive Publication Date: 2009-03-25
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical process of the above patent does not dope the titanium dioxide on the catalytic filament, it is only suitable for photocatalytic degradation under ultraviolet light, and the degradation efficiency needs to be improved

Method used

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Examples

Experimental program
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Embodiment 1

[0021] Example 1: In orthotitanate H 4 TiO4 Tartrate H 2 C 4 h 4 o 6 , under stirring, orthotitanic acid is dissolved in complex tartaric acid to obtain titanyl tartrate complex, and the titanium content is measured as TiO 2 The form is calculated as 9% (mass percentage), and then Y is added at a doping ratio of Y / Ti (molar ratio) of 0.1%. 2 o 5 , under stirring to obtain yttrium-doped tartrate oxytitanic acid solution; the glass fiber filaments with a length of 10 cm and a diameter of 0.5 mm were washed with deionized water, dried, and heated to 55 ° C in an oven; Carry out infiltration and pulling in the tartrate oxytitanic acid solution, the temperature of the yttrium-doped tartrate oxytitanic acid solution is 52°C, the soaking time is 5-10 seconds, and the pulling speed is 15 cm / s, so that the surface of the glass fiber filaments forms yttrium-doped Hetero-titanium dioxide precursor thin film; put the glass fiber filament coated with yttrium-doped titanium dioxide pr...

Embodiment 2

[0023] Example 2: In orthotitanate H 4 TiO 4 Tartrate H 2 C 4 h 4 o 6 , under stirring, orthotitanic acid is dissolved in complex tartaric acid to obtain titanyl tartrate complex, and the titanium content is measured as TiO 2 The form is calculated as 35% (mass percentage), and then Y is added at a doping ratio of Y / Ti (molar ratio) 1.0%. 2 o 5 , under stirring to obtain yttrium-doped tartrate oxytitanic acid solution; the glass fiber filaments with a length of 10 cm and a diameter of 0.5 mm were washed with deionized water, dried, and heated to 75 ° C in an oven; Carry out infiltration and pulling in tartrate oxytitanic acid solution, the temperature of yttrium-doped tartrate oxytitanic acid solution is 80°C, the soaking time is 5-10 seconds, and the pulling speed is 5 cm / s, so that the surface of glass fiber filaments forms yttrium-doped Hetero-titanium dioxide precursor thin film; put the glass fiber filament coated with yttrium-doped titanium dioxide precursor into ...

Embodiment 3

[0024] Example 3: In orthotitanate H 4 TiO 4 Tartrate H 2 C 4 h 4 o 6 , under stirring, orthotitanic acid is dissolved in complex tartaric acid to obtain titanyl tartrate complex, and the titanium content is measured as TiO 2 The form is calculated as 20% (mass percentage), and then Y is added at a doping ratio of Y / Ti (molar ratio) 1.5%. 2 o 5 , under stirring to obtain yttrium-doped tartrate oxytitanic acid solution; the glass fiber filaments with a length of 10 cm and a diameter of 0.5 mm were washed with deionized water, dried, and heated to 60 ° C in an oven; Carry out infiltration and pulling in the tartrate oxytitanic acid solution, the temperature of the yttrium-doped tartrate oxytitanic acid solution is 70°C, the soaking time is 5-10 seconds, and the pulling speed is 15 cm / s, so that the surface of the glass fiber filaments forms yttrium-doped Hetero-titanium dioxide precursor thin film; put the glass fiber filament coated with yttrium-doped titanium dioxide pr...

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Abstract

Disclosed is a preparation method of glass fiber-based yttrium doped titanium dioxide photodegradation catalytic filaments, which is characterized in that the method comprises the following steps: (1) preparing an yttrium doped titanyl tartrate solution; (2) washing fiber glass filaments clean with water; (3) heating the clean fiber glass filaments to a temperature of between 50 and 80DEG C, soaking the filaments to the yttrium doped titanyl tartrate solution with the temperature of between 50 and 80DEG C, and adopting a soakage Czochralski method to form an yttrium doped titanyl tartrate precursor film on the surface of the fiber glass filaments; and (4) implementing the heat treatment to the fiber glass filaments coated with the yttrium doped titanyl tartrate precursor, when in heat treatment, the room temperature is taken as an initial temperature which is elevated to between 480 and 520DEG C at a heating rate of 10 to 20DEG C / min, and the heat is preserved for 30 to 60 minutes, and finally the finished product is acquired after natural cooling.

Description

technical field [0001] The invention relates to a preparation method of a glass fiber-based yttrium-doped titanium dioxide photodegradation catalyst filament capable of photocatalytically degrading organic pollutants in water bodies, especially organic pigment pollutants, under light irradiation. Background technique [0002] With the acceleration of urbanization, the generation of municipal solid waste has also increased sharply. Since the 1990s, an average of 1.785 billion tons of new waste has been added to the world every year. The leachate produced in the process of landfill directly or indirectly affects the human living environment. Effective treatment of landfill leachate has become an urgent problem to be solved in the urban environment and one of the research hotspots of environmental protection technology. In terms of industrial pollution, the development of the paper industry has brought convenience to people's lives, but at the same time it has also produced a ...

Claims

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Application Information

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IPC IPC(8): B01J21/06B01J23/10B01J35/06C02F1/30
Inventor 邓昭平陈建利胡景川黄振新
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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