Printing process for modified titanium dioxide and preparation method of modified titanium dioxide printing material

A technology of titanium dioxide and printing technology, which is applied in the direction of chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problem of high probability of electron-hole recombination, accelerated electron and hole recombination, and insufficient catalytic performance. Sexuality and other issues, to achieve uniform distribution, improve production efficiency, good response effect

Active Publication Date: 2018-11-23
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure nanometer titanium dioxide semiconductor material also has some shortcomings as a catalyst: firstly, it has a wide band gap (Eg=3.2ev), which can only absorb ultraviolet light with a wavelength less than 387nm, and is not suitable for visible light, which accounts for most of the sunlight. Second, the recombination probability of electrons and holes is high, and the effective photon survival time is short and the number is small, so that nano-titanium dioxide cannot fully exert its catalytic properties.
When the load is too large, it accelerates the recombination of electrons and holes, reducing the catalytic efficiency

Method used

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  • Printing process for modified titanium dioxide and preparation method of modified titanium dioxide printing material
  • Printing process for modified titanium dioxide and preparation method of modified titanium dioxide printing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Introducing amino ions and simple gold into titanium dioxide to obtain a printing material containing at least modified titanium dioxide; using printing equipment to print the printing material containing modified titanium dioxide on the base cloth, the base cloth is at least including rice-shaped structured special-shaped fibers Fabric, wherein the metal in the metal element is preferably Au.

Embodiment 2

[0040] Add 80ml of tetrabutyl titanate ethanol solution with a concentration of 125g / L dropwise into the mixed solution consisting of 10ml formic acid and 10ml deionized water, and keep stirring until the solution turns light blue. Stand and age until the sol becomes gel. 0.5ml concentration is that the chloroauric acid ethanol solution of 0.1mol / L is added in the aqueous solution of the amino-terminated hyperbranched polymer that 10ml concentration is 30g / L, heat and boil until the solution is pale pink. Mix 50ml of ethanol solution of amino-terminated hyperbranched polymer with a concentration of 60g / L into the solution, continue to stir until it is evenly mixed, then add 10g of titanium dioxide gel, use a cell pulverizer to mix evenly, and put it into polytetrafluoroethylene for reaction In the kettle, heat at 200°C for 8 hours. After cooling, the solution was washed three times with ethanol, centrifuged, washed three times with deionized water, centrifuged, and dried to o...

Embodiment 3

[0042] Add 80ml of tetrabutyl titanate ethanol solution with a concentration of 125g / L dropwise into the mixed solution consisting of 10ml formic acid and 10ml deionized water, and keep stirring until the solution turns light blue. Stand and age until the sol becomes gel. 0.30ml concentration of 0.1mol / L silver nitrate aqueous solution was added to 10ml concentration of 50g / L amino-terminated hyperbranched polymer aqueous solution, heated and boiled until the solution was bright yellow. Mix 30ml of ethanol solution of amino-terminated hyperbranched polymer with a concentration of 15g / L into the solution, continue to stir until it is evenly mixed, then add 10g of titanium dioxide gel, use a cell pulverizer to mix evenly, and then put it into polytetrafluoroethylene for reaction In the kettle, heat at 200°C for 10 hours. After cooling, the solution was washed three times with ethanol, centrifuged, washed three times with deionized water, centrifuged, and dried to obtain N-Au co...

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Abstract

The invention discloses a printing process for modified titanium dioxide and a preparation method of a modified titanium dioxide printing material. The printing process comprises the following steps:1) introducing amino ions and metal elementary substances into titanium dioxide to obtain the printing material at least containing the modified titanium dioxide; 2) printing the printing material onto base cloth by printing equipment, wherein the base cloth is fabric at least containing special-shaped fibers. The printing process and the preparation method have the advantages that the fabric madefrom the special-shaped fibers, especially fibers with shape like Chinese character mi, is adopted, axial slots are formed in microstructures of the fibers, modified titanium dioxide particles in theprinting material enter the slots, and the micro-nano modified titanium dioxide particles can be fastened with the fiber structures; amino positive ions are introduced into titanium dioxide, and accordingly, the bonding fastness between the modified titanium dioxide and shell fabric is guaranteed; metal such as silver is added to expand the spectral range for light absorption, and the fabric hasa good response effect under sunlight; the fibers and the fabric obtained after printing have antibacterial and antistatic performance.

Description

technical field [0001] The invention relates to a preparation method of a photocatalytic material, in particular to a photocatalytic preparation method of a multi-component doped modified titanium dioxide powder with high visible light response and high catalytic efficiency and a printing process using the modified titanium dioxide dye. Background technique [0002] As an important inorganic transition metal oxide material, nano-titanium dioxide has high catalytic activity, good weather resistance, and excellent UV resistance. In recent years, the research on titanium dioxide nanomaterials has been increasing day by day, and it has attracted people's attention in the fields of wastewater treatment, sunscreen and skin care, coatings and sensors, and photocatalysts. Compared with other transition metal oxides, nano-titanium dioxide can not only absorb ultraviolet rays, reflect ultraviolet rays, but also transmit visible light. It is a UV protective agent with superior performa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J35/00B01J35/02
CPCB01J27/24B01J35/004B01J35/02
Inventor 付凡林红陈宇岳张雨凡左琴平张德锁
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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