Inorganic clay compound material, its preparation and use

A composite material and inorganic clay technology, applied in chemical instruments and methods, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as high cost, long preparation process, and difficult process control , to achieve the effect of promoting separation, low price, and improving photocatalytic activity

Inactive Publication Date: 2006-02-22
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an inorganic clay composite material and its preparation method and use. The material not only has more efficient photocatalytic performance, but also overcomes the long preparation process, high cost and difficult process control. Shortcomings

Method used

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  • Inorganic clay compound material, its preparation and use
  • Inorganic clay compound material, its preparation and use
  • Inorganic clay compound material, its preparation and use

Examples

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Effect test

Embodiment 1

[0036] 4mL TiCl 4 The liquid was dissolved in 12mL of absolute ethanol, stirred for 0.5 hours, added to 330g of glycerol in a volume ratio of glycerol: water=1:1 to obtain a titanium dioxide sol, and simultaneously 0.26g of cerium nitrate was dissolved in 28mL of The rare earth solution was obtained in water and ethanol, and then the prepared above-mentioned sol and solution were added to 490 g of prefabricated clay / absolute ethanol suspensions with a clay content of 1.78%, stirred for 3 hours, left standing at room temperature for 12 hours, and then press-filtered , drying at 80°C, and sintering at 400°C for 10 hours to obtain the cerium, titanium dioxide and clay composite material of the present invention.

Embodiment 2

[0038] 6mL TiCl 4 The liquid was dissolved in 30mL of absolute ethanol, stirred for 0.5 hours, added to 108g of glycerol in a volume ratio of glycerol:water=2:1 to obtain titanium dioxide sol, and simultaneously 0.26g of cerium nitrate was dissolved in 13.5mL In absolute ethanol, then the above two solutions prepared were added to 480g of prefabricated clay content of 2.0% clay / dehydrated ethanol suspension, stirred for 3 hours, and after standing at room temperature for 12 hours, press filtration, 70 ℃ drying, 500 ℃ calcination for 6 hours, the cerium, titanium dioxide and clay composite material of the present invention can be obtained.

Embodiment 3

[0040] 4mL TiCl 4 The liquid was dissolved in 10mL of absolute ethanol, stirred for 0.5 hours, added to 120g of glycerol in a volume ratio of glycerol:water=2:1 to obtain titanium dioxide sol, and simultaneously 0.64g of cerium nitrate was dissolved in 22mL of water ethanol, then the above two solutions prepared were added to 305g of prefabricated clay content of 1.95% clay / dehydrated ethanol suspension, stirred for 3 hours, left to stand at room temperature for 12 hours, then press-filtered, 80 ° C Drying and sintering at 600°C for 4 hours can obtain the composite material of cerium, titanium dioxide and clay of the present invention.

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Abstract

The invention relates to inorganic clay composite and the method for preparation and the utility, belonging to the catalyst art. The material comprises rare-earth element, titanium oxide and clay, the rare-earth element being one or two from Ce, La, Nd, Pr, Yt, Eu and Er, the clay being montmorillonite, the mass ratio of every component being: montmorillonite 54- 90%, titanium oxide 8- 45%, and rare-earth oxide 0.1- 4.0%; and the technique contains the following steps: the mass ratio of material being: titanate 0.6- 1.8%, absolute ethyl alcohol 45- 90%, rare-earth salt 0.013- 0.08% clay 0.8- 1.8%, deionized water 3- 30% and glycerin 4- 35%, using titanate, absolute ethyl alcohol and glycerin solution to prepare titanium oxide sol, using rare-earth salt and absolute ethyl alcohol to prepare rare-earth solution, adding said sol and solution separately into the suspension of clay- absolute alcohol, mixing, aging, filter-pressing, drying in 60- 80Deg. C, and at last roasting 4- 10 hours to prepare the product. The material is added into coating as an additive. And the material has a high catalysis property and a short preparation process.

Description

technical field [0001] The technical solution of the present invention relates to the field of catalysts, in particular to a catalytically active inorganic clay composite material and its preparation method and application. Background technique [0002] For the development and application of clay composite materials, foreign research is relatively early. Among them, especially in the study of bentonite composite materials, a lot of research work has been carried out. There are mainly two forms of bentonite used in the field of environmental protection. One is to make sodium-based bentonite through sodium modification of the original soil or acidify the original soil to make active white clay; the other is to introduce the interlayer of bentonite Some inorganic and organic ions or molecules undergo further interlayer reactions to prepare montmorillonite interlayer composites. People have synthesized various inorganic and organic bentonite composite materials with bentonite ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10B01J21/06B01J21/16B01J37/00
Inventor 梁金生梁广川丁燕于俊梅
Owner HEBEI UNIV OF TECH
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