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Composite photocatalyst-In2O3/CNB and preparation method and application thereof

A catalyst and composite light technology, applied in the field of photocatalysis, can solve the problems of low catalytic efficiency, limited application, and unsatisfactory photocatalytic performance

Inactive Publication Date: 2015-04-29
FUYANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] g-C 3 N 4 With its outstanding advantages of high photocatalytic activity, good stability, cheap raw materials, and especially no metal, it has become a new type of photocatalytic material. However, single-phase catalysts usually have low quantum efficiency. The photocatalytic performance is not ideal, because g-C 3 N 4 The high photogenerated electron-hole recombination rate of the material leads to its low catalytic efficiency, which limits its application in photocatalysis

Method used

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  • Composite photocatalyst-In2O3/CNB and preparation method and application thereof
  • Composite photocatalyst-In2O3/CNB and preparation method and application thereof
  • Composite photocatalyst-In2O3/CNB and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1In

[0079] Example 1In 2 O 3 Preparation of / CNB (0.01)

[0080] (1) Weigh 1.0g cyanamide and 50.0mg boron oxide respectively, dissolve them in water after mixing, remove the water in the mixture at 120°C, and calcinate the solid obtained after removing the solvent water at 400°C for 1 hour, Cooling to obtain CNB;

[0081] (2) Weigh the product CNB 1.0g and 0.01g In 2 o 3 , mixed and ground, calcined and cooled at 900 °C to obtain the composite photocatalyst In 2 o 3 / CNB.

Embodiment 2In

[0082] Example 2In 2 O 3 Preparation of / CNB (0.05)

[0083] (1) Weigh 3.0g of dicyandiamide and 0.5mg of boric acid respectively, dissolve them in water after mixing, remove the water in the mixture at 100°C, and calcinate the solid obtained after removing the solvent water at 800°C for 5 hours, Cooling to obtain CNB;

[0084] (2) Weigh the product CNB1.0g and 0.05g In 2 o 3 , mixed and ground, calcined and cooled at 300 °C to obtain the composite photocatalyst In 2 o 3 / CNB.

Embodiment 3In

[0085] Example 3In 2 O 3 Preparation of / CNB (0.1)

[0086] (1) Weigh 10.0g melamine and 20.0mg sodium tetraphenylborate respectively, mix them and dissolve them in water, remove the water in the mixture at 80°C, and calcinate the solid obtained after removing the solvent water at 550°C for 4 hours , cooled to obtain CNB;

[0087] (2) Weigh the product CNB1.0g and 0.10g In 2 o 3 , mixed and ground, calcined and cooled at 400 °C to obtain the composite photocatalyst In 2 o 3 / CNB.

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Abstract

The invention provides a method for preparing composite photocatalyst In2O3 / CNB (g-C3N4). According to the method, used raw materials are derived from extensive sources, the preparation method is simple, the cost is low, the prepared composite photocatalyst-In2O3 / CNB has high photocatalytic efficiency and has the remarkable effect on photocatalytic degradation of wastewater, in particular dye wastewater.

Description

technical field [0001] The invention belongs to the field of photocatalysis, relates to a method for preparing a photocatalyst, in particular to a method for preparing a composite photocatalyst In 2 o 3 / CNB method and its application. Background technique [0002] In recent years, with the rapid development of industrial production, the problem of environmental pollution has been widely concerned by people. With the continuous improvement of industrial pollution control technology, photocatalytic technology, that is, the use of solar energy to photocatalytically degrade pollutants, has been studied more and more deeply in environmental governance. [0003] Another way to study photocatalysts is to find new photocatalysts. [0004] g-C 3 N 4 With its outstanding advantages of high photocatalytic activity, good stability, cheap raw materials, and especially no metal, it has become a new type of photocatalytic material. However, single-phase catalysts usually have low qua...

Claims

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Application Information

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IPC IPC(8): B01J27/24C02F1/32C02F1/30C02F1/58
Inventor 崔玉民李慧泉陶栋梁苗慧
Owner FUYANG NORMAL UNIVERSITY
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