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A kind of flake Ag/AgCl nano-heterostructure and its preparation method

A nano-heterostructure, silver nanotechnology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., to achieve the effect of good repeatability, high efficiency, and easy regulation

Inactive Publication Date: 2016-11-30
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, there are no reports on the preparation method of sheet-like Ag / AgCl nano-heterostructures at home and abroad, and in-depth exploration is urgently needed

Method used

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  • A kind of flake Ag/AgCl nano-heterostructure and its preparation method
  • A kind of flake Ag/AgCl nano-heterostructure and its preparation method
  • A kind of flake Ag/AgCl nano-heterostructure and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1.1 Put 0.020 g of Ag nanotriangular sheets into a beaker, press Ag nanotriangular sheets and Cl - The molar ratio of 1:0.30 was added dropwise to 5 mL of FeCl 3 Aqueous solution, the dropping rate is 1 mL / min, after the dropwise addition is completed, stir at room temperature for 4 h;

[0036] 1.2 The obtained sample is centrifuged and washed to obtain the product.

[0037] The transmission electron microscope (TEM) picture of the obtained product is as follows figure 2 As shown, it can be seen from the figure that the morphology of the product is an irregular sheet with a size of 30-55 nm. The X-ray diffraction (XRD) pattern of the product is as follows image 3 As can be seen from the figure, the resulting product is Ag / AgCl nano-heterostructure.

Embodiment 2

[0039] 2.1 Put 0.020 g of Ag nanotriangular sheets into a beaker, press Ag nanotriangular sheets and Cl - The molar ratio of 1:0.05 was added dropwise to 5 mL of FeCl 3 Aqueous solution, the dropping rate is 1.2 mL / min, after the dropwise addition is completed, stir at room temperature for 4 h;

[0040] 2.2 After the obtained sample was centrifuged and washed, a sheet-like Ag / AgCl nano-heterostructure with a size of 40-65 nm was obtained, and the XRD pattern of the obtained product was consistent with that of figure 1 Similarly, the TEM image is shown in Figure 4 shown.

Embodiment 3

[0042] 3.1 Put 0.020 g of Ag nanotriangular sheets into a beaker, press Ag nanotriangular sheets and Cl - The molar ratio of 1:0.06 was added dropwise to 5 mL of HgCl 2 Aqueous solution, the dropping rate is 0.4 mL / min, after the dropwise addition is completed, stir at 80 °C for 2 h;

[0043] 3.2 After the obtained sample was centrifuged and washed, a triangular sheet-like Ag / AgCl nano-heterostructure with a size of 55-68 nm was obtained. The XRD pattern of the obtained product was consistent with that of figure 1 similar.

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Abstract

The invention discloses slice-shaped Ag / AgCl nanometer heterostructures and a preparation method thereof. The preparation method comprises the following steps that silver nanometer slices are prepared by a hydrothermal method, a chloride aqueous solution is dropwisely added into the silver nanometer slices, then the mixed solution undergoes a reaction, and then the samples are taken out and washed to form the slice-shaped Ag / AgCl nanometer heterostructures. The preparation method has simple processes, a low cost, a high yield, high efficiency, regulation and control easiness and good repeatability and is suitable for large-scale production. The slice-shaped Ag / AgCl nanometer heterostructures have good dispersibility and different sizes and shapes, are slices having sizes of 10-70nm, have specific surface areas larger than those of spherical particles and blocks and are suitable for the photocatalysis field.

Description

technical field [0001] The invention relates to an Ag / AgCl nano-heterostructure and a preparation method thereof, and belongs to the technical field of Ag / AgCl nano-heterostructure preparation. Background technique [0002] Ag / AgX (X = Cl - , Br - , I - ) heterostructure is a kind of surface plasmon catalyst material widely studied by people, and it is also a kind of co-catalyst material with good performance. It has important applications in the fields of photocatalytic degradation of toxic organic pollutants, solid reference electrodes, and sensor devices. value. Among them, AgCl is a good photosensitive material, and the Ag nanostructure has high surface activity and plasmon resonance properties, and the composite structure of the two has high photocatalytic performance. At present, the morphology control and performance research of Ag / AgCl heterostructures has become a hot issue that scholars from all over the world are generally concerned about. [0003] The prepar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/10B82Y30/00B82Y40/00C02F1/32
Inventor 马谦杨萍吴长亮张爱玉曹永强
Owner UNIV OF JINAN