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Preparation method of samarium-doped titanium dioxide powder

A technology of titanium dioxide and powder, which is applied in the field of preparation of samarium-doped titanium dioxide powder, which can solve the problems of low raw material utilization rate, long production cycle and high equipment requirements, and achieve the effects of short reaction cycle, convenient operation and low production cost

Inactive Publication Date: 2010-03-10
SHAANXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods either require high equipment and are relatively expensive; or the utilization rate of raw materials is very small; or the process is complicated, the preparation cycle is long, and the repeatability is poor.

Method used

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  • Preparation method of samarium-doped titanium dioxide powder

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Embodiment 1

[0013] Embodiment 1: 1) at first, according to analytically pure butyl phthalate (C 16 h 36 o 4 Ti) and dehydrated alcohol are 1: 0.5 volume ratio will butyl phthalate (C 16 h 36 o 4 Ti) was added in absolute ethanol and stirred evenly to be prepared into a transparent solution, which was designated as A solution;

[0014] 2) Next, mix deionized water and analytically pure absolute ethanol with a volume ratio of 1:1 by deionized water and analytically pure absolute ethanol to obtain a transparent solution, then add analytically pure samarium chloride (SmCl 3 ) is dissolved in a transparent solution so that the mass concentration of samarium chloride is 0.05%, and the gained solution is denoted as B solution;

[0015] 3) Then, adding analytically pure glacial acetic acid to solution B in a volume ratio of 1:5 by analytically pure glacial acetic acid and solution B makes C solution;

[0016] 4) Mix A solution and C solution according to the volume ratio of 1:0.2 and pour i...

Embodiment 2

[0018] Embodiment 2: 1) at first, according to analytically pure butyl phthalate (C 16 h 36 o 4 Ti) and dehydrated alcohol are 1: 3 volume ratios butyl phthalate (C 16 h 36 o 4 Ti) was added in absolute ethanol and stirred evenly to be prepared into a transparent solution, which was designated as A solution;

[0019] 2) Next, deionized water and analytically pure absolute ethanol are mixed with deionized water and analytically pure absolute ethanol as a volume ratio of 1:4 to obtain a transparent solution, and then analytically pure samarium chloride (SmCl 3 ) is dissolved in the transparent solution so that the mass concentration of samarium chloride is 1.5%, and the gained solution is denoted as B solution;

[0020] 3) Then, adding analytically pure glacial acetic acid to solution B in a volume ratio of 1:8 by analytically pure glacial acetic acid and solution B makes C solution;

[0021] 4) Mix A solution and C solution according to the volume ratio of 1:1 and pour it...

Embodiment 3

[0023] Embodiment 3: 1) at first, according to analytically pure butyl phthalate (C 16 h 36 o 4 Ti) and dehydrated alcohol are 1: 5 volume ratios butyl phthalate (C 16 h 36 o 4 Ti) was added in absolute ethanol and stirred evenly to be prepared into a transparent solution, which was designated as A solution;

[0024] 2) Next, deionized water and analytically pure absolute ethanol are mixed with deionized water and analytically pure absolute ethanol as a volume ratio of 1:6 to obtain a transparent solution, and then analytically pure samarium chloride (SmCl 3 ) is dissolved in a transparent solution so that the mass concentration of samarium chloride is 3%, and the gained solution is denoted as B solution;

[0025] 3) Then, add analytically pure glacial acetic acid to B solution in a volume ratio of 1:10 by analytically pure glacial acetic acid and solution B to make C solution;

[0026] 4) Mix solution A and solution C according to the volume ratio of 1:5 and pour it int...

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Abstract

The invention relates to a preparation method of samarium-doped titanium dioxide powder. The preparation method comprises the following steps: firstly, mixing dibutyl phthalate and absolute ethyl alcohol to obtain an A solution; mixing deionized water, absolute ethyl alcohol and samaric chloride to obtain a B solution; adding ice vinegar to the B solution to obtain a C solution; uniformly mixing the A solution with the C solution, pouring the mixed solution to a hydro-thermal reaction kettle; putting the hydro-thermal reaction into a microwave hydro-thermal reaction instrument; selecting a single temperature control mode or a single pressure control mode to react; centrifugally collecting products; and then, respectively adopting the deionized water and the absolute ethyl alcohol or isopropanol to wash and dry so as to obtain a final product of samarium-doped titanium dioxide powder. The invention adopts a microwave hydro-thermal method, once finishes the whole reaction in a liquid phase without subsequent treatment and has simple process equipment, short reaction period, good repetitiveness, simple process preparation, convenient operation, easily obtained raw materials and lowerpreparation cost.

Description

technical field [0001] The invention relates to a preparation method of titanium dioxide powder, in particular to a preparation method of samarium-doped titanium dioxide powder. Background technique [0002] In recent years, as the global environmental pollution has become increasingly serious, environmentally friendly materials have become more and more popular. Nano TiO 2 Because of its large specific surface area, good photocatalytic performance, anti-ultraviolet ability and strong thermal conductivity, it has been applied in the fields of coatings, sensors, functional ceramics, sunscreen cosmetics and catalytic degradation [Gao Wei, Wu Fengqing.TiO 2 Research on the relationship between crystal form and photocatalytic activity [J]. Chemical Journal of Chinese Universities, 2001, 22(4): 660-662.]. In order to increase the nanometer TiO 2 For photocatalytic efficiency, researchers at home and abroad have used various methods to modify it, with the aim of making titanium...

Claims

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Application Information

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IPC IPC(8): B01J23/10B01J21/06B01J37/34B01J37/10A62D3/17A62D101/20
Inventor 卢靖黄剑锋曹丽云吴建鹏李翠艳
Owner SHAANXI UNIV OF SCI & TECH