Carbon nitride-nickel titanate composite material and preparation method and application thereof

A composite material, carbon nitride technology, applied in chemical instruments and methods, chemical/physical process, physical/chemical process catalyst, etc., can solve the problem of composite material synthesis work that has not yet been reported, and achieve easy control and stability of reaction conditions. Strong performance and convenient operation

Inactive Publication Date: 2015-11-11
湖南红普创新科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, g-C 3 N 4 /NiTiO 3 Synthetic w

Method used

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  • Carbon nitride-nickel titanate composite material and preparation method and application thereof
  • Carbon nitride-nickel titanate composite material and preparation method and application thereof
  • Carbon nitride-nickel titanate composite material and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0042] A carbon nitride-nickel titanate composite material of the present invention comprises carbon nitride and nickel titanate, wherein the carbon nitride is block-shaped, nickel titanate is rod-shaped, and the rod-shaped nickel titanate is deposited on the block-shaped nitrided Carbon surface, in which the mass fraction of carbon nitride is 18.4%.

[0043] respectively for g-C 3 N 4 , NiTiO 3 And the carbon nitride-nickel titanate composite material (g-C 3 N4 / NiTiO 3 ) The specific surface area is detected by BET measurement, g-C 3 N 4 , NiTiO 3 And the carbon nitride-nickel titanate composite material (g-C 3 N 4 / NiTiO 3 ) The specific surface area is 10.238m 2 g ?1 , 57.138m 2 g ?1 , 61.284m 2 g ?1 , see g-C 3 N 4 / NiTiO 3 The specific surface area of ​​the material is larger than the two monomers; the high specific surface area can provide more active sites for adsorbing pollutants, which contributes to photocatalysis. Therefore, the carbon nitride-nic...

Embodiment 2

[0052] A carbon nitride-nickel titanate composite material of the present invention comprises carbon nitride and nickel titanate, wherein the carbon nitride is block-shaped, nickel titanate is rod-shaped, and the rod-shaped nickel titanate is deposited on the block-shaped nitrided Carbon surface, wherein the mass fraction of carbon nitride is 10%.

[0053] A method for preparing the carbon nitride-nickel titanate composite material of the above-mentioned embodiment differs from the method of embodiment 1 only in that the amount of dicyandiamide in step (1) is 150 mg, and the rest of the steps are the same.

Embodiment 3

[0055] A carbon nitride-nickel titanate composite material of the present invention comprises carbon nitride and nickel titanate, wherein the carbon nitride is block-shaped, nickel titanate is rod-shaped, and the rod-shaped nickel titanate is deposited on the block-shaped nitrided Carbon surface, in which the mass fraction of carbon nitride is 27.3%.

[0056] A method for preparing the carbon nitride-nickel titanate composite material of the above-mentioned embodiment differs from the method of embodiment 1 only in that the amount of dicyandiamide in step (1) is 500 mg, and the rest of the steps are the same.

[0057] respectively for g-C 3 N 4 , NiTiO 3 And the carbon nitride-nickel titanate composite material of embodiment 1~3 carries out ultraviolet-visible diffuse reflection absorption spectrum detection, image 3 for g-C 3 N 4 , NiTiO 3 And the ultraviolet-visible diffuse reflection absorption spectrum corresponding to the carbon nitride-nickel titanate composite ma...

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Abstract

The present invention discloses a carbon nitride-nickel titanate composite material and a preparation method and application thereof. The carbon nitride-nickel titanate composite material comprises carbon nitride and nickel titanate. Nickel titanate is deposited on the surface of carbon nitride to form the carbon nitride-nickel titanate composite material. The preparation method comprises the steps of: dissolving dicyandiamide in ethylene glycol to obtain an ethylene glycol solution containing dicyandiamide; adding nickel acetate and tetrabutyl titanate into the ethylene glycol solution containing dicyandiamide, carrying out a polymerization reaction to obtain reaction products; calcining the reaction products to obtain the carbon nitride-nickel titanate composite material . The composite material of the present invention has the advantages of high stability, high recyclability, high specific surface area and sites with high photocatalytic activity. The preparation method is simple, high in maneuverability and low in cost; and the composite material has superior photocatalytic properties, and can be widely used in the field of photocatalytic degradation of dye wastewater.

Description

technical field [0001] The invention belongs to the technical field of preparation of composite materials, and relates to a photocatalytic nano composite material and its preparation method and application, in particular to a carbon nitride-nickel titanate composite material and its preparation method and application. Background technique [0002] In recent years, photocatalytic technology has been widely used to treat inorganic and organic pollutants in wastewater. Many photocatalytic materials such as metal oxides, sulfides and nitrides have received extensive attention and research. Among these photocatalysts, perovskite oxides have a stable structure and exhibit good photocatalytic activity in the field of photocatalysis. Among them, nickel titanate (NiTiO 3 ) belongs to the triangular crystal system of ilmenite structure, with its suitable band gap (2.18eV) and good solar light response characteristics, it has potential application prospects in the field of photocatal...

Claims

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Application Information

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IPC IPC(8): B01J27/24C02F1/30
Inventor 袁兴中王惠王侯陈晓红吴志斌蒋龙波梁婕曾光明
Owner 湖南红普创新科技发展有限公司
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