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Gold@metal organic frame material nano-particle array and preparation method and application thereof

A metal-organic framework and nanoparticle array technology, applied in nanotechnology for materials and surface science, metal processing equipment, nanotechnology, etc., can solve the problems of poor stability of AuMOF, easy particle agglomeration, and overall performance decline. Achieve the effect of no pollution in the production process, low raw material cost and processing cost, and easy operation

Active Publication Date: 2016-07-13
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problem of poor stability of AuMOF in the prior art and easy particle agglomeration, which leads to a significant decline in the overall performance of gold nanoparticles and metal-organic framework materials, the present invention provides a gold metal-organic framework material nanoparticle array AuMIL -100(Fe) and its preparation method and application can not only effectively exert the properties of metal organic framework materials and gold nanoparticle arrays, but also have good stability and no particle agglomeration

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  • Gold@metal organic frame material nano-particle array and preparation method and application thereof

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preparation example Construction

[0031] Specifically, the preparation method of the gold metal organic framework material nanoparticle array may include the following steps:

[0032] Step A, preparing a single-layer colloidal crystal array (for example: the colloidal crystal array can adopt a polystyrene colloidal crystal array, a silica colloidal crystal array or a polymethyl methacrylate colloidal crystal array), and use the single-layer colloidal crystal array The array is a template, and a gold film with a thickness of 35-50nm is deposited on the surface of the template by a physical deposition method. In practical applications, the single-layer colloidal crystal array can be prepared by the gas-liquid interface self-assembly method, and the diameter of the colloidal microspheres of the single-layer colloidal crystal array is preferably 100-1000nm; the physical deposition method can be used Deposition by magnetron sputtering, thermal evaporation or electron beam evaporation.

[0033]Step B, performing he...

Embodiment 1

[0047] Such as Figure 5 As shown, a gold metal organic framework material nanoparticle array is prepared by the following steps:

[0048] Step a, put the glass slide into acetone, ethanol, and deionized water in turn for ultrasonic cleaning, each liquid is ultrasonically cleaned for 40 minutes, and then the cleaned glass slide is put into an oven for drying treatment, and the drying temperature is 80°C, drying time is 30 minutes; after the water on the glass slide is completely evaporated, place the glass slide in an ultraviolet ozone cleaner for 30 minutes of irradiation, so as to obtain a glass slide with a hydrophilic surface.

[0049] Step b, take 400 microliters of polystyrene colloidal suspension (2.5wt.%) with a diameter of 350nm, and mix it with ethanol in equal volumes, and then carry out 20min of ultrasonic vibration treatment, so as to obtain uniformly dispersed polystyrene colloids Spherical ethanol dilution; on the glass slide 1 after the step a process, apply a...

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Abstract

The invention discloses a gold@metal organic frame material nano-particle array and a preparation method and application thereof.The gold@metal organic frame material nano-particle array is an ordered array formed by arranging multiple nano-units according to a non-closely-arranged hexagonal structure, the distance between every two adjacent nano-units ranges from 350 nm to 1000 nm, and each nano-unit is of a core-shell structure with gold nano-particles as the core and a metal organic frame material MIL-100 (Fe) as the shell.According to the gold@metal organic frame material nano-particle array, the properties of the metal organic frame material and the gold nano-particles can be effectively exerted; besides, stability is good, and particle aggregation can be avoided.

Description

technical field [0001] The invention relates to the technical field of nanocomposite materials, in particular to a gold metal organic framework material nanoparticle array and its preparation method and application. Background technique [0002] Metal-Organic Frameworks (MOFs for short) materials are porous crystalline materials formed by the self-assembly of metal ions and multifunctional organic ligands through coordination bonds. It has the characteristics of both inorganic materials and organic materials, for example: it has the advantages of high porosity, super large specific surface area, rich topological structure, and strong structure adjustability, so it has many advantages in gas storage, gas separation, heterogeneous catalysis, It has good application prospects in luminescence, ion exchange, and drug delivery. For a long time, people have been working on designing and synthesizing new metal organic framework materials and expanding more applications, but a singl...

Claims

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Application Information

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IPC IPC(8): B22F1/00G01N21/552G01N21/47B82Y30/00B82Y40/00
CPCG01N21/4788G01N21/554B82Y30/00B82Y40/00B22F1/102B22F1/054
Inventor 李越杭立峰门丹丹李昕扬蔡伟平
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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