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A one-step method for preparing α-zrp/tio2 composites

A composite material, NH4H2PO4 technology, applied in the direction of titanium oxide/hydroxide, titanium dioxide, phosphide, etc., can solve the problems of cumbersome, high cost, low yield, etc., and achieve the effect of simple process, cost saving and convenient operation

Inactive Publication Date: 2015-11-18
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the prepared TiO2 is small in size, this process is not only cumbersome, but also has low yield and high cost, and may cause TiO 2 uneven distribution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] ZrOCl 2 、H 3 PO 4 and (NH 4 ) 2 TiF 6 mixed, wherein the solution ZrOCl 2 The concentration is 0.005mol / L, the molar ratio Zr / P=1:20, Zr / Ti=1:1 (Zr / F=1:6). The mixed solution was reacted at 80°C for 90min. After centrifugation, washing, cooling and drying, the molar ratio n(α-ZrP) / n(TiO 2 ) = 1:1 α-ZrP / TiO 2 composite material.

Embodiment 2

[0020] ZrO(NO 3 ) 2 , NaH 2 PO 4 and Na 2 TiF 6 mixed, in which ZrO(NO 3 ) 2 The concentration is 0.02mol / L, the molar ratio Zr / P=1:40, Zr / Ti=2:1 (Zr / F=1:3). The mixed solution was reacted in a microwave reactor at 85°C for 45min. After centrifugation, washing, cooling and drying, the molar ratio n(α-ZrP) / n(TiO 2 ) = 2:1 α-ZrP / TiO 2 composite material.

Embodiment 3

[0022] ZrOSO 4 、KH 2 PO 4 and K 2 TiF 6 mixed, where the solution ZrOSO 4 The concentration is 0.02mol / L, the molar ratio Zr / P=1:60, Zr / Ti=3:1 (Zr / F=1:2). The mixed solution was reacted at 90°C for 30min. After centrifugation, washing, cooling and drying, the molar ratio n(α-ZrP) / n(TiO 2 ) = 3:1 α-ZrP / TiO 2 composite material.

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PUM

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Abstract

The invention relates to a method for realizing one-step preparation of an alpha-ZrP / TiO2 composite material, which comprises the following steps: respectively mixing a water-soluble zirconium salt, a phosphoric acid source and a water-soluble hexafluorotitanate according to a Zr / P / Ti mole ratio of 1:(20-80):(0.1-10), thus obtaining a water solution; and heating the water solution at 70-100 DEG C, thus obtaining the alpha-ZrP / TiO2 composite material. The preparation method adopts a one-step preparation technology, is simple in process, high in yield, and especially suitable for preparation of a nano semiconductor composite material which has high requirements for mixing uniformity and requires narrow particle size and high dispersivity. Besides, in the preparation of the alpha-ZrP / TiO2 composite material, the water-soluble hexafluorotitanate is used instead of hydrofluoric acid in the original process, so that glass or enamel equipment can be selected as production equipment, thereby saving the cost.

Description

technical field [0001] The invention belongs to α-ZrP / TiO 2 In the field of composite materials, especially a one-step preparation of α-ZrP / TiO 2 Composite method. Background technique [0002] Zirconium phosphate is a layered structure compound. In recent years, α-ZrP(α-Zr(HPO 4 ) 2 ·H 2 O) and its derivatives as the main body, some guest molecules overcome the interaction force between the layers and insert into the interlayer gap, and the host-guest are assembled by ionic bonds, hydrogen bonds, van der Waals forces and other forces to form a special property They have broad application prospects in the fields of particle exchange, adsorption, catalysis, medicine, electrochemistry, photochemistry, biology, and environmental protection. [0003] Currently, the preparation of α-ZrP / TiO 2 Most of the research methods of composite materials are synthesis and intercalation in two steps, that is, α-ZrP is first synthesized by a certain method, and then it is stripped to in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/08C01G23/053
Inventor 邢彦军胡晓霞李新玲张彩云
Owner DONGHUA UNIV