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A kind of preparation method of zinc phosphate nanocage

A technology of nanocage and zinc phosphate, which is applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve the problems of high preparation cost, environmental pollution, complicated process, etc., and achieve the effect of simple preparation method

Inactive Publication Date: 2018-07-17
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above preparation process needs further heating treatment and acid etching treatment, the process is complicated, the preparation cost is high, and it is easy to cause environmental pollution

Method used

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  • A kind of preparation method of zinc phosphate nanocage
  • A kind of preparation method of zinc phosphate nanocage
  • A kind of preparation method of zinc phosphate nanocage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 0.33 g of polyvinylpyrrolidone K30 and 1.0 mg of zinc chloride were dissolved in 10 ml of ethanol and water in an ethanol-water mixture with a volume ratio of 1:1; under stirring, 10 mg of cubic silver phosphate was dispersed in the mixture, Then, 4 ml of 1 M sodium thiosulfate solution was added dropwise until the reaction solution gradually changed from light yellow to white, and stirring was continued for 1 hour. The obtained sample was centrifuged, washed 5 times with water, and dried to obtain zinc phosphate nanocages.

example 1

[0016] The XRD collection of patterns of the zinc phosphate nanocage prepared by example 1 is as figure 1 As shown, the diffraction peak at 2θ = 25.9° is consistent with Zn 3 (PO 4 ) 2 The diffraction peaks of the (2 1 0) plane (JCPDS: 30-1409) are consistent, indicating that the obtained nanocages are zinc phosphate; figure 2 It is the SEM image of the zinc phosphate nanocage. It can be seen from the figure that the zinc phosphate nanocage is composed of tens of nanometer particles; image 3 In order to prepare the TEM picture of the zinc phosphate nanocage, it can be seen from the figure that the zinc phosphate nanocage is a hollow structure.

Embodiment 2

[0018] 0.20 g of polyvinylpyrrolidone K30 and 1.0 mg of zinc chloride were dissolved in 10 ml of ethanol and water in an ethanol-water mixture with a volume ratio of 1:1; under stirring, 10 mg of cubic silver phosphate was dispersed in the mixture, Then, 4 ml of 1 M sodium thiosulfate solution was added dropwise until the reaction solution gradually changed from light yellow to white, and stirring was continued for 1 hour. The obtained sample was centrifuged, washed 5 times with water, and dried to obtain zinc phosphate nanocages.

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Abstract

The invention relates to a preparation method of a zinc phosphate nanocage. The preparation method is characterized in that phosphate radical release is performed by utilizing cubic silver phosphate as a silver source and a template agent and adopting thiosulfate (soft base) as a complex reagent of a silver ion (soft acid), phosphate radical is subjected to an in-situ reaction with added zinc ions, and the zinc phosphate nanocage is obtained. The preparation method of the zinc phosphate nanocage comprises following steps: polyvinylpyrrolidone and zinc chloride are dissolved in a 50% (V / V) ethanol-water mixed solution, and cubic silver phosphate is dispersed in the mixed solution during stirring; 1 mol / L of a thiosulfate solution is dropwise added to the mixed solution until the color of the reaction solution changes from light yellow to white gradually, stirring is continued for 1 h, a product is washed and dried, and the zinc phosphate nanocage is obtained. The zinc phosphate nanocage prepared with the method has certain application prospect in the aspects of catalysis, photonic devices, drug delivery carriers and the like.

Description

technical field [0001] The invention relates to a preparation method of a zinc phosphate nanocage, which belongs to the field of functional technical materials. Background technique [0002] The hollow nanocage structure has unique structural characteristics such as large internal space, low density, large specific surface area, and strong permeability. Broad application prospects. In recent years, the preparation of hollow nanocage structure materials has gradually become one of the research hotspots of nano functional materials. Among them, the non-spherical hollow nanocage structure (such as hollow polyhedron, ellipsoid and hollow cone, etc.) not only has the characteristics of spherical nanocage structure, but also the structural anisotropy brought about by the reduction of its symmetry makes it suitable for optical, electrical, Magnetic and other aspects will have more exotic properties, so its synthesis and property research have attracted much attention. [0003] D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/37
CPCC01B25/37C01P2002/72C01P2004/03C01P2004/04C01P2004/30C01P2004/61
Inventor 田宝柱雒玉升王正张金龙吴迪孔为行韩昌栋
Owner EAST CHINA UNIV OF SCI & TECH