Graphene-nanometer titanium dioxide composite fabric finishing catalyst and preparation method thereof

A technology of nano-titanium dioxide and graphene, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as difficult industrial production, low production efficiency, and long preparation time, and achieve easy operation, The effect of low preparation cost and high catalytic activity

Inactive Publication Date: 2016-07-20
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In these research processes, the two are usually mixed and then loaded on the surface of the material, which not only requires complex equipment, but also has problems such as long preparation time, low pro

Method used

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  • Graphene-nanometer titanium dioxide composite fabric finishing catalyst and preparation method thereof
  • Graphene-nanometer titanium dioxide composite fabric finishing catalyst and preparation method thereof
  • Graphene-nanometer titanium dioxide composite fabric finishing catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Fabric pretreatment process: at room temperature and under stirring conditions, firstly immerse the fabric in an aqueous solution containing 2.0g / L sodium carbonate and 2.0g / L soap powder, and stir at 95°C for 30 minutes, take it out, and then use Wash the fabric 5 times with distilled water, and finally dry it;

[0024] 2. Preparation of graphene oxide aqueous dispersion: put 0.50g graphene oxide powder and 99.5mL distilled water in a beaker, stir with a magnetic stirrer at room temperature for 10min, and then use an ultrasonic oscillator for 15min to make graphite oxide Graphene powder is evenly dispersed in water to obtain a brown-yellow graphene oxide aqueous dispersion;

[0025] 3. Graphene oxide finishing fabric process: immerse 1.0g of the pretreated fabric in 50mL of the above-mentioned graphene oxide aqueous dispersion for 20min, and use a padding machine to treat the impregnated fabric to remove excess water and keep rolling. The remaining rate is 75-80%. ...

Embodiment 2

[0030] 1. The process is the same as the 1-step process in Example 1.

[0031] 2. The process is the same as the 2-step process in Example 1.

[0032] 3. the number of repetitions is set as 2 times, and all the other are with the 3-step process in embodiment 1 to obtain the graphene oxide finishing fabric that the number of layers is 2.

[0033] 4. The process is the same as the 4-step process in Example 1.

[0034] 5. The process is the same as the 5-step process in Example 1.

[0035] 6. process is identical with the 6 steps process in embodiment 1, obtains graphene-nano-titanium dioxide composite finishing fabric and is abbreviated as TiO 2 -GO-2.

Embodiment 3

[0037] 1. The process is the same as the 1-step process in Example 1.

[0038] 2. The process is the same as the 2-step process in Example 1.

[0039] 3. the number of repetitions is set to 8 times, and all the other are with the 3-step process in the embodiment 1 to obtain the graphene oxide finishing fabric that the number of layers is 8.

[0040] 4. The process is the same as the 4-step process in Example 1.

[0041] 5. The process is the same as the 5-step process in Example 1.

[0042] 6. process is identical with the 6 steps process in embodiment 1, obtains graphene-nano-titanium dioxide composite finishing fabric and is abbreviated as TiO 2 -GO-4.

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Abstract

The invention relates to a graphene-nanometer titanium dioxide composite fabric finishing catalyst and a preparation method thereof. The catalyst is characterized by being prepared by loading graphene and nanometer titanium dioxide onto cotton fiber, wherein the appearance of the catalyst is of a gray fiber shape. The catalyst has higher catalytic activity to an oxidation degradation reaction of pollutants like dyes, can remain good catalytic performance in the process of reuse, and can promote a faster oxidation degradation reaction of the pollutants like the dyes in waste water. In addition, in the preparation process of the catalyst, graphene oxide is loaded onto fabric and reduced into graphene; and finally, nanometer titanium dioxide is finished onto the graphene-loaded fabric. Thus, the preparation method for the catalyst has the advantages of relatively simple process, moderate cost, easy operation and facilitation to industrial popularization.

Description

technical field [0001] The invention relates to chemical catalyst technology, in particular to a graphene-nano titanium dioxide composite finishing fabric catalyst and a preparation method thereof. Background technique [0002] In the 21st century, with the continuous development of society and the acceleration of industrialization, the problem of environmental pollution has become one of the outstanding problems that people are facing. Governments and scientists of various countries have begun to devote themselves to solving the pollution problem, especially the treatment of dye wastewater. As an inexpensive and environmentally friendly material, TiO2 has been widely used for photocatalytic degradation of organic pollutants in water. However, titanium dioxide catalysts have disadvantages such as small particle size, difficult recovery, low photon utilization efficiency, and low photocatalytic activity. By loading titanium dioxide on fibers or fiber fabric supports with hig...

Claims

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Application Information

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IPC IPC(8): B01J21/06B01J21/18B01J35/06C02F1/72B01J37/02C02F103/30
CPCB01J21/063B01J21/18B01J35/06B01J37/0207B01J37/024C02F1/725C02F2103/30
Inventor 董永春王鹏汪健刘永昌崔桂新
Owner TIANJIN POLYTECHNIC UNIV
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