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C3N4-Mt-SO3H composite material as well as preparation and application thereof

A technology of c3n4-mt-so3h and c3n4-mt-sh is applied in the field of C3N4-Mt-SO3H composite material and its preparation and application, which can solve the problems of expensive Pt, easy deactivation, and limited commercial application, and achieve The effects of large sample volume, effective transformation, and easy control of reaction conditions

Active Publication Date: 2018-06-22
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the second-step reaction, the most efficient oxygen reduction catalyst used to obtain other chemicals from glucose is the noble metal Pt, etc., but the high price of Pt and the disadvantage of easy deactivation greatly limit its commercial application.

Method used

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  • C3N4-Mt-SO3H composite material as well as preparation and application thereof
  • C3N4-Mt-SO3H composite material as well as preparation and application thereof
  • C3N4-Mt-SO3H composite material as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Weigh 5g of montmorillonite (the cation exchange capacity of the used montmorillonite, that is, CEC is 50mmol / 100g), put it in a round-bottomed flask, pour 50mL of deionized water, stir for 20min, and then add 0.42g of dicyandiamide (2CEC), Stir at 100 °C for 4 hours for exchange adsorption, then rotate the product to evaporate the water until no water, then put the solid into an evaporating dish, and dry it at 100 °C in a constant temperature drying oven. The dried solid is ground into powder and poured into Then put the quartz tank into the quartz sleeve of the single-tube tube furnace, and keep the sample in the constant temperature zone. After sealing, nitrogen was passed through for 1 h to remove the air in the quartz sleeve. The temperature of the tube furnace was raised from room temperature to 550°C at a rate of 2.5°C / min, kept at a constant temperature for 4 hours, and cooled naturally after the calcination to obtain product C. 3 N 4 -Mt composite. Weigh 2gC...

Embodiment 2

[0059] The mass of dicyandiamide in Example 1 was changed to 0.84g (4CEC), other steps were as in Example 1, and the catalyst prepared under this synthesis condition was recorded as Sample 2.

Embodiment 3

[0061] The mass of dicyandiamide in Example 1 was changed to 1.26g (6CEC), other steps were as in Example 1, and the catalyst prepared under this synthesis condition was recorded as Sample 3.

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Abstract

The invention discloses a C3N4-Mt-SO3H composite material as well as preparation and application thereof. The C3N4-Mt-SO3H composite material is characterized in that carbon nitride is intercalated among montmorillonite layers, and sulfonic acid groups are grafted to the surfaces of montmorillonite. The preparation method of the C3N4-Mt-SO3H composite material is low in cost, simple to operate, and basically free from environmental pollution. The application of the C3N4-Mt-SO3H composite material used as a catalyst in hydrolysis hydrogenation preparation of sorbitol according to a cellulose-pot method is characterized in that the catalyst is capable of synchronously catalyzing cellulose to hydrolyze to obtain glucose and hydro-conversing glucose into sorbitol; moreover, the catalyst is recyclable.

Description

(1) Technical field [0001] The present invention relates to a kind of C with layered clay as carrier, with sulfonic acid grafted on its surface and carbon nitride intercalated between layers. 3 N 4 -Mt-SO 3 Preparation of H composites and their application in cellulose hydrolysis and hydrogenation to sorbitol. (2) Background technology [0002] At present, most of the energy and organic chemical raw materials needed by the world come from coal, oil and natural gas. In the long run, they are not ideal resources that human beings can rely on for a long time. As a future resource and energy that human beings can rely on for a long time, it must be abundant in reserves and renewable, and its utilization will not cause environmental pollution. Based on this principle, plant-based biomass resources will be an ideal choice for the future of mankind. Cellulose is the most widely distributed and most abundant polysaccharide biomass resource in nature. Hydrolysis of cellulose is a...

Claims

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Application Information

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IPC IPC(8): B01J27/24C07C29/141C07C31/26
CPCB01J27/24C07C29/141C07C31/26Y02P20/584
Inventor 童东绅吴程文杨淼周春晖俞卫华
Owner ZHEJIANG UNIV OF TECH
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