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Preparation method of lanthanum-ferrite-doped graphite phase carbon nitride composite photocatalyst

A technology of graphitic carbon nitride and lanthanum ferrite, which is applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., achieves a simple preparation method and easy control of preparation conditions , the effect of high catalytic efficiency

Active Publication Date: 2017-07-28
CHANGZHOU UNIV
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Problems solved by technology

Literature survey found that lanthanum ferrite doped graphite phase carbon nitride composite photocatalyst has not been reported

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  • Preparation method of lanthanum-ferrite-doped graphite phase carbon nitride composite photocatalyst
  • Preparation method of lanthanum-ferrite-doped graphite phase carbon nitride composite photocatalyst
  • Preparation method of lanthanum-ferrite-doped graphite phase carbon nitride composite photocatalyst

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Embodiment 1

[0021] (1) Graphite phase carbon nitride (g-C 3 N 4 ) preparation: put 5 g of melamine into a crucible, heat to 550° C., heat for 5 hours, cool naturally to room temperature and grind to obtain the product;

[0022] (2) Lanthanum ferrite (LaFeO 3 ) preparation: 3 mol of lanthanum nitrate, 3 mol of ferric nitrate and 3 mol of citric acid were respectively dissolved in 20 solvent I (water:ethanol=1:1), stirred for 20 min, heated to 60° C. for 3 h, until a xerogel was formed, Drying at 100°C for 12h, calcining at 550°C for 5h, cooling naturally to room temperature and grinding to obtain the product;

[0023] (3) Preparation of lanthanum ferrite-doped graphitic carbon nitride composite photocatalyst: 2 g of graphitic carbon nitride (g-C 3 N 4 ) and 1g lanthanum ferrite (LaFeO 3 ) respectively into beakers, put into 20ml of dispersant, and ultrasonic for 30min. Then LaFeO 3 The suspension was added dropwise to the graphite phase carbon nitride suspension, stirred for 12 hour...

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Abstract

The invention relates to preparation of a lanthanum-ferrite-doped graphite phase carbon nitride (g-C3N4) composite photocatalyst, comprising the steps of preparing graphite phase carbon nitride (g-C3N4), preparing lanthanum ferrite (LaFeO3), and preparing the lanthanum-ferrite-doped graphite phase carbon nitride (LaF3O3 / g-C3N4) composite photocatalyst. The preparation method has the advantages that the preparation method is simple, preparation conditions are easy to control, and the prepared lanthanum-ferrite-doped graphite phase carbon nitride (g-C3N4) composite photocatalyst has the advantages of zero secondary pollution, high photocatalytic efficiency and the like and has certain application value.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation and application, and relates to a preparation method of a lanthanum ferrite-doped graphite-phase carbon nitride composite photocatalyst. Background technique [0002] Photocatalytic technology has gradually become one of the most critical technologies to control environmental pollution and energy shortages, and has triggered extensive research by scientists at home and abroad. Graphite carbon nitride (g-C 3 N 4 ) as a new type of visible light responsive non-metallic polymer photocatalyst, and has the advantages of non-toxicity, no secondary pollution, low cost, and easy industrialization. With the deepening of research, graphitic carbon nitride has been widely used in research fields such as photocatalytic degradation and photocatalytic hydrogen production, and a series of major breakthroughs have been made. However, studies have shown that g-C 3 N 4 However, there are some ...

Claims

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Application Information

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IPC IPC(8): B01J27/24C02F1/30C02F101/38C02F101/34
CPCC02F1/30B01J23/002B01J27/24C02F2101/308C02F2101/38C02F2101/34C02F2305/10B01J35/39
Inventor 梁倩金杰李忠玉
Owner CHANGZHOU UNIV
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