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Metasilicate hole material assembled nano titanium oxide composite material and preparation method thereof

A technology of nano-titanium dioxide and composite materials, which is applied in the field of silicate porous materials to assemble nano-titanium dioxide composite materials and its preparation, can solve time-consuming problems, achieve the effects of reducing processing costs, improving performance, and broadening the scope of application

Active Publication Date: 2007-10-31
BAOSHAN IRON & STEEL CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, existing pore-assembled TiO 2 They all use MCM41 and must be synthesized through a certain chemical process, which is time-consuming

Method used

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  • Metasilicate hole material assembled nano titanium oxide composite material and preparation method thereof
  • Metasilicate hole material assembled nano titanium oxide composite material and preparation method thereof
  • Metasilicate hole material assembled nano titanium oxide composite material and preparation method thereof

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Experimental program
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Embodiment Construction

[0033]The technological process of preparing layered silicate porous materials to assemble nano-titanium dioxide composite materials is shown in Figure 1:

[0034] Mill the talc raw material with a particle size of -80 mesh (-0.20mm) (or -1mm, -2mm, -3mm particle size) with a planetary mill for 6 hours, the weight ratio of the ball to material is 10:1, and stir with hydrochloric acid at 80°C Leaching under conditions, the acid concentration is 4mol / L, and the leaching time is 2h. The leaching solution is cooled, filtered, washed, and dried to obtain a talc-like micro / mesoporous material (S101). Take 10ml of butyl titanate (analytical grade) and mix with 30ml of absolute ethanol, and disperse by ultrasonic wave for 10min (S102). Stir the mixed solution with a heat-collecting constant temperature magnetic stirrer (S103), according to Si / Ti=10:1 (molar ratio), add talc porous material to the ethanol solution of butyl titanate, and magnetically stir in a water bath at 60°C. After...

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Abstract

The invention relates to the making of nanometer titanic anhydride compound material using silicate porous material, with weight percentage of phyllosilicate being 92. 2-95. 9%, and anatase Ti being O27. 8-4. 1%. It is low in processing cost, extended in stone ore application, being able to produce high value-added product with simple process, easy material access, undemanding processing conditions, difficult to pollute, better distribution, effective control of the crystalline dimension, greatly improved in TiO2 compound material feature.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials, and in particular relates to nano-titanium dioxide composite materials assembled with silicate porous materials and a preparation method thereof. Background technique [0002] Pure TiO 2 The photoresponse range of semiconductors is narrow, the recombination probability of semiconductor photogenerated electron / hole pairs is high, and the excited state valence band holes and conduction band electrons are easily deactivated. Therefore, organic pollutants (such as dioxin-like persistent organic Pollutants) have a limited degradation effect. TiO 2 Composite materials can improve TiO 2 Activity, however, powdered catalyst particles are easy to agglomerate during preparation, have poor dispersion in application, and cannot fully contact with pollutants. [0003] In the early 1990s, the composite system of nanoparticles / mesoporous solids in nanomaterials science attracted attention. U...

Claims

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Application Information

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IPC IPC(8): B01J21/06B01J21/16B01D53/86B01D53/72
Inventor 李咸伟杨华明石洪志张科俞勇梅史蓉蓉
Owner BAOSHAN IRON & STEEL CO LTD