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g-C3N4/ZnO nano-sheet multi-level heterogeneous structure photocatalyst and preparation method thereof

A heterogeneous structure, photocatalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as difficult preparation of g-C, achieve high catalytic efficiency, low cost, and simple preparation process Effect

Active Publication Date: 2017-09-22
东营睿港投资服务有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the currently prepared g-C 3 N 4 / ZnO nanostructure, or loaded C 3 N 4 The steps are complicated, and it is difficult to prepare g-C with high specific surface area 3 N 4 / ZnO, either using expensive raw materials and high production costs

Method used

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  • g-C3N4/ZnO nano-sheet multi-level heterogeneous structure photocatalyst and preparation method thereof
  • g-C3N4/ZnO nano-sheet multi-level heterogeneous structure photocatalyst and preparation method thereof
  • g-C3N4/ZnO nano-sheet multi-level heterogeneous structure photocatalyst and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0015] (1) Dissolve 1.0 g of acidified carbon nitride in water, add 0.007 g of potassium sodium tartrate, 0.28 g of zinc acetate, and 0.4 g of urea, react at 90°C for 12 hours, separate and wash;

[0016] (2) After drying the product obtained in step (1), raise the temperature to 300°C at a heating rate of 1°C / min and keep it warm for 0.5h to obtain g-C 3 N 4 / ZnO Nanosheet Hierarchical Structured Photocatalyst.

Embodiment 2

[0018] (1) Dissolve 0.5 g of acidified carbon nitride in water, add 0.007 g of potassium sodium tartrate, 0.28 g of zinc acetate, and 0.4 g of urea, react at 90°C for 12 hours, separate and wash;

[0019] (2) After drying the product obtained in step (1), raise the temperature to 300°C at a heating rate of 1°C / min and keep it warm for 0.5h to obtain g-C 3 N 4 / ZnO Nanosheet Hierarchical Structured Photocatalyst.

Embodiment 3

[0021] (1) Dissolve 2.0 grams of acidified carbon nitride in water, add 0.007 grams of potassium sodium tartrate, 0.28 grams of zinc acetate, and 0.4 grams of urea, react at 90°C for 12 hours, separate and wash;

[0022] (2) After drying the product obtained in step (1), raise the temperature to 300°C at a heating rate of 1°C / min and keep it warm for 0.5h to obtain g-C 3 N 4 / ZnO Nanosheet Hierarchical Structured Photocatalyst.

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Abstract

The invention discloses a g-C3N4 / ZnO nano-sheet multi-level heterogeneous structure photocatalyst and a preparation method thereof. The method is characterized in that acidized carbon nitride, sodium potassium tartrate, zinc acetate and urea are adopted as raw materials, and the g-C3N4 / ZnO nano-sheet multi-level heterogeneous structure photocatalyst is obtained by using a liquid-phase precipitation-phase conversion technology; the self-assembly of the multi-level structure and the g-C3N4 loading are completed in one step; and the method comprises: dissolving acidized carbon nitride in water, sequentially adding a certain amount of sodium potassium tartrate, zinc acetate and urea, carrying out a reaction for 3-12 h at a temperature of 70-90 DEG C, cooling through an ice bath, carrying out centrifugation, drying, and carrying out roasting phase transformation to obtain the g-C3N4 / ZnO nano-sheet multi-level heterogeneous structure photocatalyst. According to the present invention, the used precursor is the inexpensive zinc acetate, the preparation process is simple, and the cost is low; and the prepared g-C3N4 / ZnO nano-sheet multi-level heterogeneous structure photocatalyst has characteristics of high catalytic efficiency and good photocatalytic activity.

Description

technical field [0001] The invention belongs to the field of photocatalyst materials and relates to a g-C 3 N 4 / ZnO multi-level structure photocatalyst preparation method, specifically, involves a kind of by g-C 3 N 4 A preparation method of a multi-level heterostructure photocatalyst formed by self-assembly of ZnO nanosheets. Background technique [0002] At present, photocatalytic technology for the purpose of solar energy utilization has shown great potential in solving energy shortages and environmental pollution, and has been highly valued by governments of all countries. Therefore, the development of photocatalytic materials with high efficiency, low cost and effective utilization of sunlight has become a research hotspot in photocatalytic technology. ZnO is widely used in the fields of solar cells and photocatalysis due to its advantages of greenness, environmental protection, low price, and no secondary pollution. However, since ZnO is a semiconductor with dire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J35/08B01J35/10B01J37/03B01J37/08C01B3/04
CPCC01B3/042B01J27/24B01J37/038B01J37/086B01J35/39B01J35/23B01J35/51B01J35/60Y02E60/36
Inventor 王德宝于海涛宋彩霞牟红宇周艳红刘毓浩
Owner 东营睿港投资服务有限责任公司
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