Preparation and application of a glucose-based porous carbon material

A technology of glucose and porous carbon, applied in other chemical processes, separation methods, separation of dispersed particles, etc., can solve the problems of low environmental pollution and high yield, and achieve the effects of high adsorption capacity, high specific surface area, and good graphitization degree

Active Publication Date: 2022-04-01
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glucose has a wide range of sources and is cheap and easy to obtain. At the same time, the hydrothermal carbonization process is simple, the reaction conditions are mild, the environmental pollution is small, and the yield is high. There is still a lot of room for improvement in its VOCs adsorption capacity

Method used

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  • Preparation and application of a glucose-based porous carbon material
  • Preparation and application of a glucose-based porous carbon material
  • Preparation and application of a glucose-based porous carbon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Dissolve 4 g of glucose in 15 mL of deionized water, stir at room temperature for 15 min to obtain solution A; dissolve 0.09 g of iron powder and 0.23 g of trimesic acid in 27 mL of deionized water, and add 0.14 mL of hydrogen successively Hydrofluoric acid (HF, 40 wt%) and 0.07 mL nitric acid (HNO 3 , 65 wt%), stirred at room temperature for 15 min to obtain solution B; added solution A to solution B, and stirred at room temperature for 20 min; transferred the resulting mixed solution into a stainless steel autoclave, heated to 160 °C for 10 h; centrifuged and washed the product , soaked twice in ethanol at 60 °C for 10 h each time, and then dried in vacuum at 150 °C for 10 h.

[0034] (2) Add KOH (sample / KOH=1:3) to the product obtained above, mix well, put it into a tube furnace, raise the temperature to 800 °C at 5 °C / min under nitrogen protection, and maintain it for 1 h, then cool down ; then washed with 2 mol / L hydrochloric acid, washed with water, and final...

Embodiment 2

[0036] (1) Dissolve 4 g of glucose in 15 mL of deionized water, stir at room temperature for 15 min to obtain solution A; dissolve 0.20 g of iron powder and 0.50 g of trimesic acid in 27 mL of deionized water, and add 0.32 mL of hydrogen successively Hydrofluoric acid (HF, 40 wt%) and 0.15 mL nitric acid (HNO 3 , 66 wt%), stirred at room temperature for 15 min to obtain solution B; added solution A to solution B, and stirred at room temperature for 20 min; transferred the resulting mixed solution into a stainless steel autoclave, heated to 160 °C for 10 h; centrifuged and washed the product , soaked twice in ethanol at 60 °C for 10 h each time, and then dried in vacuum at 150 °C for 10 h.

[0037] (2) Add KOH (sample / KOH=1:3) to the product obtained above, mix well, put it into a tube furnace, raise the temperature to 700 °C at 5 °C / min under nitrogen protection, and maintain it for 1 h, then cool down ; then washed with 2 mol / L hydrochloric acid, washed with water, and final...

Embodiment 3

[0039] (1) Dissolve 4 g of glucose in 15 mL of deionized water, stir at room temperature for 10 min to obtain solution A; dissolve 0.20 g of iron powder and 0.50 g of trimesic acid in 27 mL of deionized water, and add 0.32 mL of hydrogen successively Hydrofluoric acid (HF, 40 wt%) and 0.15 mL nitric acid (HNO 3 , 67 wt%), stirred at room temperature for 10 min to obtain solution B; added solution A to solution B, and stirred at room temperature for 15 min; transferred the resulting mixed solution into a stainless steel autoclave, heated to 170 °C for 10 h; centrifuged and washed the product , soaked twice in ethanol at 60 °C for 8 h each time, and then dried in vacuum at 150 °C for 10 h.

[0040] (2) Add KOH (sample / KOH=1:4) to the product obtained above, mix well and put it into a tube furnace, raise the temperature to 800 ℃ at 5 ℃ / min under the protection of nitrogen and maintain it for 1 h, then cool down ; then washed with 2 mol / L hydrochloric acid, washed with water, and...

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Abstract

The invention provides the preparation and application of a glucose-based porous carbon material. The method comprises the following steps: dissolving glucose in deionized water and stirring to obtain solution A; dissolving iron powder and trimesic acid in deionized water, and Add hydrofluoric acid and nitric acid dropwise, stir to obtain solution B; add solution A to solution B, stir evenly, transfer the resulting mixed solution into a stainless steel high-pressure reactor, and then heat to react; the reaction product is centrifugally washed with water, soaked in ethanol and vacuum-dried; The dried product is mixed with an activator, and then activated by heating to obtain an activated product; the activated product is sequentially subjected to pickling, water washing and vacuum drying to obtain a glucose-based porous carbon material. The glucose-based porous carbon material prepared by this method has high specific surface area, rich hierarchical pore structure and good VOCs adsorption performance.

Description

technical field [0001] The invention belongs to the field of preparation of porous carbon materials, in particular to the preparation and application of a glucose-based porous carbon material. Background technique [0002] VOCs is the English abbreviation of volatile organic compounds, which can be roughly divided into categories according to their molecular structure: alkanes, alkenes, aromatics, alcohols, aldehydes and ketones. Among the many VOCs, aromatic VOCs (benzene, toluene, xylene, ethylbenzene) are a class of compounds that environmental chemists and toxicologists are very concerned about. On the one hand, aromatic VOCs are one of the important components of industrial source VOCs, which are widely used as solvents or raw materials in various industrial manufacturing processes, such as shoemaking, luggage making, rubber, pharmaceutical production, etc. On the other hand, aromatic VOCs are one of the important killers of human health. For example, benzene is a carc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/22B01J20/30B01D53/02
CPCB01J20/20B01J20/22B01D53/02B01D2257/708Y02A50/20
Inventor 陈孔发王晨鹏孙雪娇潘晓阳
Owner FUZHOU UNIV
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