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Three-dimensional flower-sheet-shaped sulfur-indium-zinc micro-nanowire array as well as preparation method and application thereof

A nanowire array, sulfur indium zinc technology, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of complex process, high cost, difficult recycling, etc., and achieve simple preparation process, easy recycling, and low cost Effect

Active Publication Date: 2017-10-24
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ZnIn prepared by these methods 2 S 4 One-dimensional nanomaterials, the process is more complicated, the cost is higher and it is not easy to recycle

Method used

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  • Three-dimensional flower-sheet-shaped sulfur-indium-zinc micro-nanowire array as well as preparation method and application thereof
  • Three-dimensional flower-sheet-shaped sulfur-indium-zinc micro-nanowire array as well as preparation method and application thereof
  • Three-dimensional flower-sheet-shaped sulfur-indium-zinc micro-nanowire array as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A three-dimensional flake-like sulfur indium zinc (ZnIn 2 S 4 ) A method for preparing a micro-nanowire array, comprising the following steps:

[0033] (1) First polish the cut zinc sheet with 3000 mesh sandpaper to remove the oxide layer on the surface;

[0034] (2) Wash the zinc flakes polished in (1) with acetone, absolute ethanol, and deionized water for 10 minutes in sequence, then dry them with an air gun, and then put them into the inner tank of the reactor as a base;

[0035] (3) Mix thioacetamide and indium chloride into the reaction kettle according to the molar ratio of 2:1, then add ethylene glycol, and then stir or ultrasonically dissolve to form a uniform solution with an indium salt concentration of 0.4M ;

[0036] (4) Seal the reactor, control the temperature at 200°C, and react for 2 hours; after the reaction, the reactor is naturally cooled to room temperature, and the sample is taken out and washed and dried to obtain a three-dimensional flake-like Z...

Embodiment 2

[0040] A three-dimensional flake-like ZnIn 2 S 4 A method for preparing a micro-nano wire array, comprising the following steps:

[0041] (1) First polish the cut zinc sheet with 3000 mesh sandpaper to remove the oxide layer on the surface;

[0042] (2) Wash the zinc flakes polished in (1) with acetone, absolute ethanol, and deionized water for 10 minutes in sequence, then dry them with an air gun, and then put them into the inner tank of the reactor as a base;

[0043] (3) Mix thiourea and indium sulfate into the reaction kettle according to the molar ratio of 4:1, then add ethylene glycol, and then stir or ultrasonically dissolve to form a uniform solution with an indium salt concentration of 0.2M;

[0044] (4) Seal the reactor, control the temperature at 160°C, and react for 10 hours; after the reaction, the reactor is naturally cooled to room temperature, and the sample is taken out and washed and dried to obtain a three-dimensional flake-like ZnIn that grows uniformly o...

Embodiment 3

[0046] A three-dimensional flake-like ZnIn 2 S 4 A method for preparing a micro-nano wire array, comprising the following steps:

[0047] (1) First polish the cut zinc sheet with 3000 mesh sandpaper to remove the oxide layer on the surface;

[0048] (2) Wash the zinc flakes polished in (1) with acetone, absolute ethanol, and deionized water for 10 minutes in sequence, then dry them with an air gun, and then put them into the inner tank of the reactor as a base;

[0049] (3) Cysteine ​​and indium acetate are mixed and added to the reaction kettle according to the molar ratio of 6:1, then ethylene glycol is added, and then stirred or ultrasonically dissolved to form a uniform solution with an indium salt concentration of 0.4M;

[0050] (4) Seal the reactor, control the temperature at 180°C, and react for 6 hours; after the reaction, the reactor is naturally cooled to room temperature, and the sample is taken out and washed and dried to obtain a three-dimensional flake-like ZnI...

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Abstract

The invention discloses a three-dimensional flower-sheet-shaped sulfur-indium-zinc micro-nanowire array as well as a preparation method and an application thereof. According to the preparation method, a pretreated zinc sheet is taken as a substrate, an indium source and a sulfur source are taken as precursors, the temperature and time of solvothermal reaction are controlled, and therefore, the ZnIn2S4 micro-nanowire array is prepared. The three-dimensional flower-sheet-shaped sulfur-indium-zinc micro-nanowire array prepared by virtue of the preparation method is initiated from a solid substrate and has the excellent characteristics of high specific surface area, low reflectivity, good light trapping property, relatively few defects, capability in repeated use and the like; and the preparation method is simple, low in cost and non-toxic and environment-friendly and has huge application prospects in the fields of photocatalytic hydrogen generation, photocatalytic degradation of organic pollutants, artificial photosynthesis, photocatalytic sterilization, solar cells and the like, and the process is easily controlled.

Description

technical field [0001] The invention belongs to the field of material preparation and solar energy application conversion, and in particular relates to a three-dimensional flake-shaped sulfur indium zinc micro-nano wire array and its preparation method and application. Background technique [0002] With the rapid economic development of various countries in the world, the human demand for energy is getting higher and higher, and the voice for environmental protection is also increasing. However, the traditional fossil energy is a non-renewable energy, facing the trend of depletion, and the combustion of fossil energy produces CO 2 , SO 2 and other harmful gases have great damage to the environment. Therefore, solving the energy crisis and environmental pollution has become two major issues facing the world today. All countries in the world regard the establishment of a new energy system with green environmental protection and sustainable development as a major national dev...

Claims

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Application Information

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IPC IPC(8): B01J27/04B82Y30/00
CPCB82Y30/00B01J27/04B01J35/39
Inventor 何丹农卢静涂兴龙金彩虹
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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