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a c 3 no 4 -mt-so 3 hComposite materials and their preparation and application

A technology of c3n4-mt-so3h, c3n4-mt-sh, applied in C3N4-Mt-SO3H composite material and its preparation and application fields, can solve the problems of limited commercial application, high price of Pt, easy inactivation, etc. The reaction conditions are easier to control, the sample volume is large, and the effect of effective transformation

Active Publication Date: 2020-12-25
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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  • a c <sub>3</sub> no <sub>4</sub> -mt-so <sub>3</sub> hComposite materials and their preparation and application
  • a c <sub>3</sub> no <sub>4</sub> -mt-so <sub>3</sub> hComposite materials and their preparation and application
  • a c <sub>3</sub> no <sub>4</sub> -mt-so <sub>3</sub> hComposite materials and their preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Weigh 5g montmorillonite (the cation exchange capacity of montmorillonite used is 50mmol / 100g) and place it in a round bottom flask, pour 50mL deionized water into it, stir for 20min, then add 0.42g dicyandiamide (2CEC), Stir at 100°C for 4 hours for exchange and adsorption, then rotate the product until there is no water, then put the solid in an evaporating dish, dry it in a constant temperature drying oven at 100°C, grind the dried solid into powder and pour it 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, pass nitrogen gas for 1 h to remove the air in the quartz sleeve. The tube furnace raised the temperature from room temperature to 550 °C at a rate of 2.5 °C / min, kept the temperature for 4 hours, and cooled naturally after the calcination to obtain the product C 3 N 4 -Mt Composite. Then weigh 2gC 3 N 4 -Mt was placed in a round bottom flask, added 40m...

Embodiment 2

[0064] Change the quality of dicyandiamide in Example 1 to 0.84g (4CEC), and other steps are as in Example 1, and the catalyst prepared under this synthesis condition is designated as Sample 2.

Embodiment 3

[0066] Change the quality of dicyandiamide in Example 1 to 1.26g (6CEC), and other steps are as in Example 1, and the catalyst prepared under this synthesis condition is designated 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

[0001] (1) Technical field [0002] The present invention relates to a kind of C with layered clay as carrier, sulfonic acid is grafted on its surface, and carbon nitride is intercalated between layers. 3 N 4 -Mt-SO 3 Preparation of H-composite material and its application in hydrolysis and hydrogenation of cellulose to sorbitol. [0003] (2) Background technology [0004] At present, most of the world's energy and organic chemical raw materials 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 humans can rely on for a long time, it must be abundant in reserves, renewable, and its use will not cause environmental pollution. Based on this principle, plant-based biomass resources will be an ideal choice for human beings in the future. Cellulose is the most widely distributed and abundant polysaccharide biomass resource in nature. Hydrolyzing cellulose is an im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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