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Method for simply and quickly preparing carbon-doped zinc oxide nanosheet

A zinc oxide nanometer and rapid technology, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve the problems of harsh preparation conditions, unfavorable industrialization, and many processes, and achieve controllable reaction conditions, convenient operation, and repeatability Good results

Inactive Publication Date: 2018-01-09
XINYANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned preparation method has harsh preparation conditions, many and complicated processes, and is unfavorable for industrialization.

Method used

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  • Method for simply and quickly preparing carbon-doped zinc oxide nanosheet
  • Method for simply and quickly preparing carbon-doped zinc oxide nanosheet
  • Method for simply and quickly preparing carbon-doped zinc oxide nanosheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A simple and fast method for preparing carbon-doped zinc oxide nanosheets, comprising the following preparation steps:

[0025] (1) Weigh a certain mass of basic zinc carbonate and small molecular organic matter, and grind them so that they are fully mixed and even.

[0026] (2) Place the basic zinc carbonate and small molecular organic matter mixed uniformly in step (1) in an air-free vacuum environment for calcination, and then naturally cool to room temperature.

[0027] (3) Grinding the powder calcined in step (2), the powder obtained by grinding is carbon-doped zinc oxide nanosheets.

Embodiment 2

[0029] A simple and fast method for preparing carbon-doped zinc oxide nanosheets, comprising the following preparation steps:

[0030] (1) Weigh a certain mass of basic zinc carbonate and small molecular organic matter, the mass ratio of basic zinc carbonate and small molecular organic matter is 4:1-8:1, and the basic zinc carbonate and small molecular organic matter are placed in the agate laboratory. Grind in a bowl for 10-60 min to fully mix the two; the small molecular organic matter is sucrose, oxalic acid, glucose, fructose or citric acid.

[0031] (2) Spread the basic zinc carbonate and small molecular organic matter evenly mixed in step (1) on the quartz boat, and put the quartz boat into the quartz tube of the tube furnace.

[0032] (3) Vacuumize the tube furnace so that the quartz tube in step (2) is placed in an air-free vacuum environment and calcined at 300-800°C with a heating rate of 1°C / min-10°C / min , keep warm for 1h-5h and then cool down to room temperature ...

Embodiment 3

[0035] A simple and fast method for preparing carbon-doped zinc oxide nanosheets, comprising the following preparation steps:

[0036] (1) Weigh 2g of basic zinc carbonate and 0.5g of sucrose respectively, place them in an agate mortar and grind for 10-60 minutes, so that the two are fully mixed and even.

[0037] (2) Spread the basic zinc carbonate and sucrose evenly mixed in step (1) on the quartz boat, and put the quartz boat into the quartz tube of the tube furnace.

[0038] (3) Vacuumize the tube furnace so that the quartz tube in step (2) is placed in an air-free vacuum environment and calcined at 300-800°C with a heating rate of 10°C / min. After 2 hours of heat preservation, it will naturally Cool to room temperature.

[0039] (4) Grind the powder calcined in step (3) with an agate mortar, and the powder obtained by grinding is carbon-doped zinc oxide nanosheets.

[0040] Detect the carbon-doped zinc oxide nanosheets prepared in Example 3

[0041] 1. Scanning electron...

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Abstract

The invention provides a method for simply and quickly preparing a carbon-doped zinc oxide nanosheet. The method comprises the following steps: firstly, respectively weighing basic zinc carbonate andlow molecular weight organic matters with certain mass, grinding and enabling the two substances to be fully and uniformly mixed; secondly, putting basic zinc carbonate and the low molecular weight organic matters which are uniformly mixed in the first step in an air-free vacuum environment, carrying out calcining treatment and then carrying out natural cooling to room temperature; and thirdly, grinding the powder obtained in the second step by calcining, wherein the powder obtained by grinding is the carbon-doped zinc oxide nanosheet. The zinc oxide nanosheet prepared by the invention has a laminar structure with the size of about 1 micron and the thickness of 20 to 30 nanometers; in addition, in the photocatalytic process, the nanosheet has higher specific surface area and higher adsorption ability; besides, the operation and technological method is simple, quick and, high in repeatability and facilitates industrialized production.

Description

technical field [0001] The invention relates to a simple and fast method for preparing carbon-doped zinc oxide nanosheets. Background technique [0002] As an important photocatalyst, nano-zinc oxide has higher catalytic activity than traditional catalysts, and because of its unique photochemical and photocatalytic properties, it has broad development prospects in the field of photocatalysis. Through simple oxidation-reduction reactions, zinc oxide can directly and efficiently degrade various pollutants in sewage, and researchers have studied more about its process. The general process of using nano-zinc oxide to catalyze the degradation of pollutants is: after the light shines on the surface of nano-zinc oxide, the photons can excite the electron-hole pairs on the surface to separate, and the electrons are transported away to leave oxidative holes. It can oxidize and degrade organic pollutants, and finally form H which is harmless to the environment 2 O and CO 2 . Howe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/06B01J37/08B01J37/04B01J35/10B82Y30/00B82Y40/00
Inventor 张宗文刘德汞王玲玲陈强李莉许东利刘培芳
Owner XINYANG NORMAL UNIVERSITY
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