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Non-metallic 1D/2D composite material, preparation method and application thereof

A composite material and non-metallic technology, which is applied in the field of non-metallic 1D/2D composite materials and their preparation, can solve problems such as the impact of the photocatalytic performance of conductive polymer morphology, and achieve high photocatalytic water splitting hydrogen production performance, Excellent effect of photolysis of water and rich sources of raw materials

Active Publication Date: 2018-07-24
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it has been reported and g-C 3 N 4 Only relatively simple conductive polymers such as polyaniline and polypyrrole are composited, and the reported literature does not mention the influence of the morphology and structure of the conductive polymer on the photocatalytic performance.

Method used

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  • Non-metallic 1D/2D composite material, preparation method and application thereof
  • Non-metallic 1D/2D composite material, preparation method and application thereof
  • Non-metallic 1D/2D composite material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: preparation g-C 3 N 4 catalyst of light

[0033] (1) Weigh urea, dry it in an oven at 80 °C for 24 h, grind it and put it into a crucible, cover it, and place it in a muffle furnace at 2.5 °C min -1 The heating rate was increased from room temperature to 550 °C and calcined for 4 h.

[0034] (2) Take it out and use 1 mol L -1 Pickle with nitric acid overnight, filter with suction, wash with distilled water 5-8 times until neutral, and dry overnight in a vacuum oven.

Embodiment 2

[0035] Example 2: Preparation of 1 wt% g-C 3 N 4 / PEDOT composite material

[0036] (1) Accurately weigh 0.9 g g-C 3 N 4 and 0.2 g FeCl 3 ·6H 2 O was dissolved in 50 mL deionized water, and then sonicated for 20 min.

[0037] (2) Then add 6.7 μL EDOT, and place the mixture in the reaction vessel.

[0038] (3) Finally, place the sealed reactor in an oven at 100 °C for 10 h.

[0039] (4) After the reaction, the reaction kettle was cooled to room temperature, and the product was suction filtered, washed and dried to obtain g-C 3 N 4 / PEDOT samples.

Embodiment 3

[0040] Embodiment 3: prepare 3 wt% g-C 3 N 4 / PEDOT composite material

[0041] (1) Accurately weigh 0.9 g g-C 3 N 4 and 0.2 g FeCl 3 ·6H 2 O was dissolved in 50 mL deionized water, and then sonicated for 20 min.

[0042] (2) Then add 20.1 μL EDOT, and place the mixture in the reaction vessel.

[0043] (3) Finally, place the sealed reactor in an oven at 100 °C for 10 h.

[0044] (4) After the reaction, the reaction kettle was cooled to room temperature, and the product was suction filtered, washed and dried to obtain g-C 3 N 4 / PEDOT samples.

[0045] Such as figure 1 is the g-C of this example 3 N 4 and g-C 3 N 4 The XRD spectrum of / PEDOT, after compounding,

[0046] g-C 3 N 4 The XRD diffraction peaks of PEDOT hardly changed, and the diffraction peaks of PEDOT and other substances were not observed, which may be because the content of PEDOT is too low relative to g-C3N4.

[0047] figure 2 For the pure g-C of this embodiment 3 N 4 and g-C 3 N 4 TEM ph...

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Abstract

The invention relates to a non-metallic 1D / 2D composite material, a preparation method and application thereof and belongs to the field of preparation of nano composite materials and clean energy. Thepreparation method comprises the following steps: firstly, preparing g-C3N4 for spare use; then preparing a g-C3N4 / PEDOT photocatalyst by adjusting the reaction conditions and the proportion of reactants. The PEDOT / g-C3N4 photocatalyst with a non-metallic 1D / 2D composite structure is prepared by utilizing a hydrothermal method and can be used for hydrogen production from photocatalytic decomposition of water under visible light; the obtained g-C3N4 / PEDOT sample has the 1D / 2D composite structure, the hydrogen producing amount can reach 3636.6mu mol g<-1> and is 5.5 times that of pure g-C3N4, therefore, the g-C3N4 / PEDOT composite photocatalyst with the 1D / 2D composite structure has large potential in the field of hydrogen production from photocatalytic decomposition of water.

Description

technical field [0001] The invention relates to a non-metallic 1D / 2D composite material and its preparation method and application, belonging to the field of preparation of nanocomposite materials and clean energy. Background technique [0002] With the continuous development of human society, the demand for energy continues to expand, which has led to the burning of a large amount of fossil fuels and caused serious harm to the ecological environment. However, traditional fossil fuels will also be exhausted in the near future, which may cause even more severe energy shortages. As a clean energy, hydrogen has the advantages of abundant raw materials, cheap, non-toxic and harmless, and high production capacity compared with traditional energy sources. However, hydrogen naturally exists on the earth in very small amounts. Therefore, the use of semiconductors to catalyze the photolysis of water to produce hydrogen has attracted extensive attention from scientific researchers. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/06C01B3/04
CPCC01B3/042B01J31/06B01J35/39Y02E60/36
Inventor 吴嘉聪王赟李春梅韩娟王书浩陆志远
Owner JIANGSU UNIV