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Preparation method of flowery rutile titanium dioxide nanostructure

A titanium dioxide and rutile-type technology, applied in the field of nanomaterials, can solve the problem of large one-time investment and achieve energy saving, avoid high-temperature calcination steps, and high conversion rate

Inactive Publication Date: 2014-08-06
宿州学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This process is easy to scale up to achieve continuous production, but the one-time investment is large, and the problem of powder collection and storage needs to be solved

Method used

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  • Preparation method of flowery rutile titanium dioxide nanostructure
  • Preparation method of flowery rutile titanium dioxide nanostructure
  • Preparation method of flowery rutile titanium dioxide nanostructure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of rutile titanium dioxide nano flower structure, characterized in that it comprises the following steps:

[0016] Mix 1ml of titanium tetrachloride, 3mmol of urea, and 2mmol of cetyltrimethylammonium bromide into 30ml of deionized water, stir for 60 minutes, put it into a polytetrafluoroethylene reactor, and place it in an oven at 180°C Insulate for 12 hours, discharge, centrifuge, wash the separated precipitate with alcohol and deionized water alternately for 3 times, and dry at 70°C for 12 hours. The diameter of the obtained product is 200-500nm, and the crystal form is rutile.

Embodiment 2

[0018] A preparation method of rutile titanium dioxide nano flower structure, characterized in that it comprises the following steps:

[0019] Mix 1.5ml of titanium tetrachloride, 4.5mmol of urea, and 3mmol of cetyltrimethylammonium bromide into 45ml of deionized water, stir for 60 minutes, put it into a polytetrafluoroethylene reactor, Keep warm in the oven for 12 hours, discharge, centrifuge, wash the separated precipitate with alcohol and deionized water alternately for 5 times, and dry at 75°C for 13 hours. The diameter of the obtained product is 200-500nm, and the crystal form is rutile. type.

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Abstract

The invention discloses a preparation method of a flowery rutile titanium dioxide nanostructure. The preparation method comprises the following steps of mixing titanium tetrachloride, urea and cetyltrimethylammonium bromide, adding the mixture into deionized water, stirring for 60-70min, and placing the solution into a polytetrafluoroethylene reaction kettle; preserving the heat in a drying oven with the temperature of 170-190 DEG C for 12h, discharging and centrifugally separating; alternately cleaning the separated sediments for 3-5 times by using alcohol and deionized water; drying at the temperature of 70-80 DEG C for 10-14h to obtain the flowery rutile titanium dioxide nanostructure. The preparation method disclosed by the invention is simple in process, high in conversion rate, easy to control and realize large-scale industrial production and capable of avoiding the high-temperature calcining step adopted in the traditional method and saving the energy source; in addition, the obtained product, namely, nanometer rutile titanium dioxide is flowery, relatively uniform in appearance and good in dispersibility and has the diameter of 200-500nm, and rutile is used as a component of the crystal form of the nanometer rutile titanium dioxide.

Description

technical field [0001] The invention mainly relates to the field of nanometer materials, in particular to a method for preparing a rutile titanium dioxide nanometer flower structure. Background technique [0002] Nano-titanium dioxide is a rutile-type white loose powder, which has strong ultraviolet shielding effect, good dispersion and weather resistance. It can be used in the fields of cosmetics, functional fibers, plastics, coatings, paints, etc., as an ultraviolet shielding agent to prevent ultraviolet rays. It can also be used in high-end automotive topcoats, and has an angle-dependent effect; nano-titanium dioxide mainly has two crystal forms: anatase and rutile. Rutile titanium dioxide is more stable and dense than anatase titanium dioxide, has higher hardness, density, dielectric constant and refractive index, and its hiding power and tinting power are also higher. The reflectance of anatase titanium dioxide in the short-wave part of visible light is higher than th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053
CPCY02P20/10
Inventor 许海峰高贵珍
Owner 宿州学院
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