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Method for preparing alpha-ZrP/TiO2/SiO2 composite material in one step

A composite material and water-soluble technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of cumbersome process and long preparation time, and achieve simple process, convenient operation, and economical cost effect

Inactive Publication Date: 2014-09-17
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the antibacterial agent prepared by this method has superior antibacterial performance, the preparation time is long and the process is cumbersome, so it still needs to be optimized and improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] ZrOCl 2 , H 3 PO 4 , (NH 4 ) 2 TiF 6 And (NH 4 ) 2 SiF 6 Mixing, where ZrOCl in solution 2 The concentration is 0.005mol / L, the molar ratio Zr / P=1:20, Zr / Ti / Si=1:1:1 (Zr / F=1:12). The mixed solution was reacted at 80°C for 90 min. After centrifugation, washing, cooling and drying, the molar ratio n(α-ZrP) / n(TiO 2 ) / n(SiO 2 ) = 1:1:1 α-ZrP / TiO 2 / SiO 2 Composite materials.

Embodiment 2

[0023] ZrO(NO 3 ) 2 , NaH 2 PO 4 , Na 2 TiF 6 And K 2 SiF 6 Mixing, where ZrO(NO 3 ) 2 The concentration is 0.02mol / L, the molar ratio Zr / P=1:40, Zr / Ti / Si=2:1:2 (Zr / F=1:9). The mixed solution was reacted in a microwave reactor at 85°C for 45 minutes. After centrifugation, washing, cooling and drying, the molar ratio n(α-ZrP) / n(TiO 2 ) / n(SiO 2 )=2∶1∶2 α-ZrP / TiO 2 / SiO 2 Composite materials.

Embodiment 3

[0025] ZrOSO 4 , KH 2 PO 4 , K 2 TiF 6 And Na 2 SiF 6 Mixing, where ZrOSO in solution 4 The concentration is 0.02mol / L, the molar ratio Zr / P=1:60, Zr / Ti / Si=3:2:1 (Zr / F=1:6). The mixed solution was reacted at 90°C for 30 min. After centrifugation, washing, cooling and drying, the molar ratio n(α-ZrP) / n(TiO 2 ) / n(SiO 2 ) = 3:2:1 α-ZrP / TiO 2 / SiO 2 Composite materials.

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PUM

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Abstract

The invention relates to a method for preparing an alpha-ZrP / TiO2 / SiO2 composite material in one step. The method comprises the following steps: respectively mixing water-soluble zircon salt, phosphoric acid source, water-soluble hexafluorotitanate and hexafluorosilicate according to a molar ratio of Zr / P / Ti / Si being 1 to (20-80) to (0.1-10) to (0.1-10), and preparing a water solution; heating the solution at 70-100 DEG C, and carrying out centrifuging, washing and cooling drying, so as to prepare the alpha-ZrP / TiO2 / SiO2 composite material. The method has the beneficial effects that the alpha-ZrP / TiO2 / SiO2 composite material is prepared by virtue of one-step water bath, the process is simple, and the operation is convenient; hydrofluoric acid used in an old process is replaced by the water-soluble hexafluorotitanate and the hexafluorosilicate, so that glass and enamel equipment can be selected, and the cost is saved; meanwhile, alpha-ZrP, TiO2 and SiO2 are uniformly mixed at a molecular level so as to prepare the alpha-ZrP / TiO2 / SiO2 composite material in one step, the reaction condition is mild, and the speed can be controlled.

Description

Technical field [0001] The invention belongs to α-ZrP / TiO 2 / SiO 2 In the field of composite materials, it particularly relates to a one-step preparation of α-ZrP / TiO 2 / SiO 2 Composite material method. Background technique [0002] α-Zirconium phosphate (α-ZrP(α-Zr(HPO 4 ) 2 ·H 2 O)) is a layered structure compound with stable performance and easy molecular design. The catalyst molecule can be designed according to the requirements of the target reaction on the catalytic activity center and stability of the catalyst to obtain the α-ZrP layered catalytic material The composite material of the main body. According to the catalytic activity, selectivity, and stability of the α-ZrP composite material, the host and guest composing the composite material can be adjusted to meet the needs of the target reaction. [0003] At present, the research methods for preparing α-ZrP composite materials are mostly carried out in two steps: synthesis and intercalation. First, α-ZrP is prepared by a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/182
Inventor 邢彦军胡晓霞李新玲张彩云
Owner DONGHUA UNIV