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Preparation method of iron-doped carbon nitride loaded zinc oxide composite photocatalyst

A technology doped with carbon nitride and iron, which is applied in physical/chemical process catalysts, chemical instruments and methods, and water treatment of special compounds, etc., can solve the problems of low catalytic efficiency, and achieve suitable for large-scale promotion, high yield, The effect of improving efficiency

Inactive Publication Date: 2020-11-17
上海腾灵建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the technical problem that the catalytic efficiency of the existing carbon nitride photocatalyst is not high

Method used

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  • Preparation method of iron-doped carbon nitride loaded zinc oxide composite photocatalyst
  • Preparation method of iron-doped carbon nitride loaded zinc oxide composite photocatalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Take dicyandiamide, ferric chloride and deionized water (the addition of dicyandiamide is 10g; the addition of ferric chloride is 1g; the addition of dicyandiamide is 70g), first dicyandiamide is added to the deionized In water, heat and stir (80°C) to dissolve it, then add ferric chloride, and continue to stir until the deionized water evaporates to dryness; then wash and dry the solid obtained above, grind and pulverize it, and then put it into a ceramic crucible with a cover Medium heating (heating rate 2°C / min) to a certain temperature (500°C) and heat preservation and roasting for a period of time (3h), the solid after natural cooling is iron-doped carbon nitride; add iron-doped carbon nitride to deionized water (the addition amount of iron-doped carbon nitride is 1 g; the addition amount of deionized water is 20 g), and ultrasonically disperse it evenly. Then add a certain amount of zinc nitrate (the addition of zinc nitrate is 0.4g) in the above-mentioned solutio...

Embodiment 2

[0022] Take dicyandiamide, ferric chloride and deionized water (the addition of dicyandiamide is 10g; the addition of ferric chloride is 0.5g; the addition of dicyandiamide is 30g), first dicyandiamide is added to remove In deionized water, heat and stir (95°C) to dissolve it, then add ferric chloride, and continue to stir until the deionized water evaporates to dryness; then wash, dry and grind the solid obtained above, and then put it into a covered ceramic Heating in a crucible (heating rate 5°C / min) to a certain temperature (650°C) and roasting for a period of time (5h), the solid after natural cooling is iron-doped carbon nitride; add iron-doped carbon nitride to Deionized water (the addition amount of iron-doped carbon nitride is 1 g; the addition amount of deionized water is 70 g), and ultrasonically disperse it evenly. Then add a certain amount of zinc nitrate (the addition of zinc nitrate is 0.6g) in the above-mentioned solution, after it is heated to a certain temper...

Embodiment 3

[0024] Take dicyandiamide, ferric chloride and deionized water (the addition of dicyandiamide is 10g; the addition of ferric chloride is 2g; the addition of dicyandiamide is 50g), first dicyandiamide is added to deionized In water, heat and stir (75°C) to dissolve it, then add ferric chloride, and continue to stir until the deionized water evaporates to dryness; then wash, dry and grind the solid obtained above, and then put it into a ceramic crucible with a cover Medium heating (heating rate 10°C / min) to a certain temperature (550°C) and heat preservation and roasting for a period of time (2h), the solid after natural cooling is iron-doped carbon nitride; add iron-doped carbon nitride to deionized water (the addition amount of iron-doped carbon nitride is 1 g; the addition amount of deionized water is 30 g), and ultrasonically disperse it evenly. Then add a certain amount of zinc nitrate (the addition of zinc nitrate is 0.2g) in the above-mentioned solution, after it is heate...

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Abstract

The invention discloses a preparation method of an iron-doped carbon nitride loaded zinc oxide composite photocatalyst, which is characterized by comprising the following steps: adding dicyandiamide into a solvent, conducting heating and stirring to dissolve dicyandiamide, adding ferric chloride, and continuously conducting stirring until deionized water is evaporated to dryness; cleaning the prepared solid, conducting drying, grinding, and crushing, putting a ground material into a ceramic crucible with a cover, conducting heating, keeping the temperature, conducting roasting, and naturally conducting cooling to obtain iron-doped carbon nitride; adding iron-doped carbon nitride into deionized water, carrying out ultrasonic treatment to uniformly disperse iron-doped carbon nitride, addingzinc nitrate, heating zinc nitrate, adding sodium hydroxide, conducting filtering, cleaning, and drying to obtain a solid which is the iron-doped carbon nitride loaded zinc oxide composite photocatalyst. The obtained iron-doped carbon nitride loaded zinc oxide photocatalyst is moderate in forbidden band width, high in light quantum efficiency, high in separation efficiency of photo-induced electrons and charges and good in methylene blue photocatalytic degradation effect; and the preparation process is simple, the yield is high, and the cost is low.

Description

technical field [0001] The invention relates to a method for preparing an iron-doped carbon nitride-supported zinc oxide composite photocatalyst, which belongs to the technical field of nanomaterial preparation. Background technique [0002] With the development and progress of human society, people are facing two serious problems of fossil energy shortage and environmental pollution. As we all know, the reserves of resources are not unlimited. Fossil energy not only has limited reserves and is expensive to exploit, but also causes pollution and damage to the ecological environment. Among many renewable energy resources, solar energy resources are favored due to their advantages such as huge reserves, safe use, green environmental protection, and not limited by geographical conditions. Photocatalytic technology is a new technology developed rapidly in recent years that can use solar energy for environmental purification and energy conversion. On the one hand, low-density s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/30C02F101/38
CPCB01J27/24C02F1/30C02F2305/10C02F2101/40B01J35/39
Inventor 邓细贵
Owner 上海腾灵建设集团有限公司
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