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Preparation method and application of cobalt tin sulfide/mesoporous carbon nitride catalyst

A technology of porous carbon nitride and cobalt tin sulfide, applied in the field of photocatalytic degradation of organic pollutants, can solve the problems of photocorrosion, poor stability, and large band gap energy of binary sulfides, and achieve excellent photocatalytic performance and simple process Effect

Inactive Publication Date: 2017-07-14
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used binary sulfides have large band gap energy, poor stability, and are prone to photocorrosion.

Method used

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  • Preparation method and application of cobalt tin sulfide/mesoporous carbon nitride catalyst
  • Preparation method and application of cobalt tin sulfide/mesoporous carbon nitride catalyst
  • Preparation method and application of cobalt tin sulfide/mesoporous carbon nitride catalyst

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Embodiment 1

[0030] (1) Preparation of mesoporous carbon nitride (MCN)

[0031] Preparation of SBA-15 template: Weigh 4.0g triblock copolymer P123 and add it to 150mL 1.6mol / L HCl solution, stir in a 30°C water bath until P123 is completely dissolved. Add 8.8g tetraethyl orthosilicate (TEOS) and stir at 40°C for 24h, then pour the solution into a high-pressure reactor at 130°C for 24h, after cooling, filter with suction and wash with distilled water several times, dry at 60°C and put it into a ceramic crucible In the air atmosphere, it was calcined at 550°C for 4h to remove P123.

[0032] Preparation of MCN: 10 g of dicyandiamide was weighed and dissolved in 35 mL of dimethylformamide (DMF) with stirring, and slowly added dropwise into a beaker containing 1.0 g of SBA-15. After stirring for 6 hours, put it into an ultrasonic cleaner (frequency is 50KHz, power density 0.24W / cm 2 ) ultrasonically for 2 hours, and then put the beaker into a 90°C oil bath to dry overnight. The obtained soli...

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Abstract

The invention relates to preparation of a cobalt tin sulfide / mesoporous carbon nitride composite photocatalyst. The preparation method includes the steps of: preparing the mesoporous carbon nitride (MCN), preparing the cobalt tin sulfide (SnCoS4), and preparing the SnCoS4 / MCN composite photocatalyst. The preparation method is simple and preparation conditions are easy to control. The SnCoS4 / MCN composite photocatalyst has simple and easy-to-control reaction process, is free of secondary pollution, is high in photo-catalytic efficiency, and has certain application value.

Description

technical field [0001] The invention specifically relates to a preparation method and application of a cobalt tin sulfide / mesoporous carbon nitride composite catalyst, belonging to the field of photocatalytic degradation of organic pollutants. Background technique [0002] In recent years, the problem of energy shortage and environmental pollution has become more and more serious, and has become two important challenges that human beings must face. Powered by abundant and clean solar energy, photocatalytic technology has the advantages of simple operation, high efficiency and energy saving, clean and non-toxic, and has become a research hotspot to solve these two problems. [0003] As a metal-free catalyst, graphitic carbon nitride (g-C 3 N 4 ) has been widely used in the field of photocatalysis due to its unique energy band structure, good chemical stability, low cost and easy availability. But traditional g-C 3 N 4 Defects such as small specific surface area and low u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/30C02F101/38
CPCC02F1/30B01J27/24C02F2101/40C02F2101/308B01J35/39
Inventor 梁倩张淼李忠玉
Owner CHANGZHOU UNIV