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Preparation method of magnetic titanium dioxide hollow microtubes

A technology of titanium dioxide and microtubes, applied in the field of materials, to achieve structural stability, reduce energy consumption, and improve sewage treatment effects

Inactive Publication Date: 2017-09-22
赵守彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that both magnetic particles and titanium dioxide have certain adsorption properties, and have certain positive effects on improving sewage treatment and purifying the environment. However, there is no report on the blending of magnetic particles and titanium dioxide to form a stable hollow composite material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a magnetic titanium dioxide hollow microtube, comprising the following steps:

[0023] (1) Take 12 parts by weight of ferric chloride hexahydrate, add it to ethylene glycol that is 3 times its weight, add 2 parts by weight of γ-glycidyl etheroxypropyl trimethoxysilane, and keep warm at 60°C Stir for 2 hours to obtain an epoxide iron salt solution;

[0024] (2) Take 34 parts by weight of tetrabutyl titanate, add it to a 65% ethanol solution that is 14 times its weight, stir evenly, add 5 parts by weight of trimethylolpropane, ultrasonic for 40 minutes, and the above ring The iron oxide salt solution was mixed, 0.2 parts by weight of calcium sulfate was added, the temperature was raised to 80° C., the temperature was kept and stirred for 3 hours, and cooled to normal temperature to obtain an iron-doped sol;

[0025] (3) Take 20 parts by weight of coniferous wood fiber, put it into a 45% sodium hydroxide solution and soak for 5 hours, filter, wash t...

Embodiment 2

[0032] A method for preparing a magnetic titanium dioxide hollow microtube, comprising the following steps:

[0033] (1) Take 10 parts by weight of ferric chloride hexahydrate, add it to ethylene glycol twice its weight, add 1.7 parts by weight of γ-glycidyl etheroxypropyl trimethoxysilane, and keep warm at 50°C Stir for 1 hour to obtain an epoxide iron salt solution;

[0034] (2) Take 30 parts by weight of tetrabutyl titanate, add it to a 50% ethanol solution that is 10-14 times its weight, stir evenly, add 3 parts by weight of trimethylolpropane, ultrasonic for 30 minutes, and Mix the above epoxidized iron salt solutions, add 0.1 parts by weight of calcium sulfate, raise the temperature to 70°C, heat and stir for 2-3 hours, and cool to normal temperature to obtain iron-doped sol;

[0035] (3) Take 16 parts by weight of coniferous wood fiber, put it into a 40% sodium hydroxide solution and soak for 3 hours, filter, wash the precipitate with water, and dry it at 50°C to obtai...

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PUM

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Abstract

The invention discloses a preparation method of a magnetic titanium dioxide hollow microtube. By adopting a hollow structure, the invention improves the electron transmission efficiency and the photocatalytic degradation effect on organic pollution, the preparation process is simple, and the synthesized microsphere has stable structure and no It needs to be calcined at high temperature to obtain hollow microspheres, which effectively reduces energy consumption. The hollow material of the present invention is expected to be used in fields such as drug carriers, catalysts, adsorption, etc., and has good performance in improving sewage treatment and purifying air quality. boost effect.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing a magnetic titanium dioxide hollow microtube. Background technique [0002] Due to the characteristics of high specific surface area, low density, and good surface permeability, inorganic hollow particles can accommodate a large number of guest molecules, which is easy to produce encapsulation or wrapping effects, so that hollow particles are widely used in the fields of medicine, chemical industry, and wastewater treatment. With broad application prospects. Titanium dioxide is a fine inorganic multifunctional material that has been studied more, and it is also an important semiconductor, catalysis, and ceramic material. It is widely used in coatings, cosmetics, Ink, paper and other fields. Therefore, the preparation of inorganic hollow titanium dioxide has important social significance and practical application value; [0003] At present, the common...

Claims

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Application Information

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IPC IPC(8): C01G23/053
CPCC01G23/053C01P2004/34C01P2006/90
Inventor 赵守彬
Owner 赵守彬