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Method for preparing titanium dioxide loaded biomass carbon aerogel material

A technology of carbon airgel and titanium dioxide, applied in chemical instruments and methods, chemical/physical processes, water pollutants, etc., can solve the problems of toxic oxidants and reducing agents, increase production costs, limit practical applications, etc., and achieve low cost , easy to operate, rich in raw materials

Inactive Publication Date: 2017-02-15
镇江华科生态电镀科技发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the pretreatment of graphene and carbon nanotubes is relatively complicated, and often requires the use of toxic oxidizing agents and reducing agents. At the same time, it needs to be prepared by high temperature and inert gas protection, which increases the production cost and limits its practical application.

Method used

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  • Method for preparing titanium dioxide loaded biomass carbon aerogel material
  • Method for preparing titanium dioxide loaded biomass carbon aerogel material
  • Method for preparing titanium dioxide loaded biomass carbon aerogel material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Cut the watermelon rind into 2cm*2cm*4cm size, put it into the reactor for hydrothermal reaction at 180°C for 20 hours, after the reaction is completed, the carbon-based wet gel is obtained, and the carbon-based wet gel is frozen in the refrigerator for 24 hours , to obtain a solid sample whose internal moisture is uniformly frozen, and dry the sample in a freeze dryer at -55°C for 12 hours to obtain a biomass carbon airgel material.

[0031] Weigh 0.03g Ti(SO4)2 and dissolve it in 20mL distilled water, ultrasonically oscillate until it is completely dissolved, then add 0.04g biomass carbon aerogel to the above solution, stir for 30min and transfer to 25mL polytetrafluoroethylene stainless steel The reaction kettle was kept at 200°C for 12 hours, and the hydrothermal product was obtained after natural cooling. The obtained samples were washed three times with distilled water and ethanol respectively, and then the samples were placed in a vacuum drying oven at a controll...

Embodiment 2

[0033] Cut the watermelon rind into 2cm*2cm*4cm size, put it into the reactor for hydrothermal reaction at 190°C for 16 hours, after the reaction is completed, the carbon-based wet gel is obtained, and freeze the carbon-based wet gel in the refrigerator for 24 hours , to obtain a solid sample whose internal moisture is uniformly frozen, and dry the sample in a freeze dryer at -10°C for 24 hours to obtain a biomass carbon airgel material.

[0034] Weigh 0.0592g Ti(SO4)2 and dissolve it in 20mL distilled water, ultrasonically oscillate until it is completely dissolved, then add 0.04g biomass carbon aerogel to the above solution, stir for 30min and transfer to 25mL polytetrafluoroethylene stainless steel for reaction The kettle was kept at 185°C for 18 hours, and the hydrothermal product was obtained after natural cooling. The obtained samples were washed three times with distilled water and ethanol respectively, and then the samples were placed in a vacuum drying oven at a contr...

Embodiment 3

[0036] Cut the watermelon rind into 2cm*2cm*4cm size, put it into the reactor for hydrothermal reaction at 200°C for 12 hours, after the reaction is completed, the carbon-based wet gel is obtained, and freeze the carbon-based wet gel in the refrigerator for 24 hours , to obtain a solid sample whose internal moisture is uniformly frozen, and dry the sample in a freeze dryer at -35°C for 24 hours to obtain a biomass carbon airgel material.

[0037] Weigh 0.12g Ti(SO4)2 and dissolve it in 20mL distilled water, ultrasonically oscillate until it is completely dissolved, then add 0.04g biomass carbon aerogel to the above solution, stir for 30min and transfer to 25mL polytetrafluoroethylene stainless steel The reaction kettle was kept at 180°C for 12 hours, and the hydrothermal product was obtained after natural cooling. The obtained samples were washed three times with distilled water and ethanol respectively, and then the samples were placed in a vacuum drying oven at a controlled ...

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Abstract

The invention belongs to the technical field of material preparation and particularly relates to a method for preparing a titanium dioxide loaded biomass carbon aerogel material. According to the method, natural plant tissue such as watermelon peels serves as a raw material, and biomass carbon aerogel is prepared by a hydrothermal method in combination with a freeze-drying technique. The titanium dioxide loaded biomass carbon aerogel composite material is prepared through uniformly stirring titanium sulfate and the biomass carbon aerogel in distilled water and then carrying out a hydrothermal reaction. The diameter of the titanium dioxide loaded biomass carbon aerogel material prepared according to the method disclosed by the invention is 0.7 to 0.9 micron. The method has the following advantages that natural wastes serve as the raw material, so that the cost is low, and the efficient resource utilization of the wastes is achieved; and the preparation process is simple, the operation is simple and convenient, the requirements on environment-friendliness are met, and the wastes are treated with the wastes, so that mass production is facilitated.

Description

technical field [0001] The invention belongs to the field of material preparation, in particular to a method for preparing a titanium dioxide-loaded biomass carbon airgel material. Background technique [0002] As a lightweight nanoporous material, carbon airgel has broad application prospects in the fields of environmental protection, catalysis, energy storage, and electrode materials due to its high porosity and large specific surface. Traditional carbon aerogels are prepared by carbonizing phenolic organic aerogels, which require a series of operations such as high-temperature carbonization and supercritical drying processes, and phenols and aldehydes are toxic, which poses certain dangers to workers and the environment sex. At present, the new type of carbon aerogel prepared from biomass has become a new research hotspot, and there are abundant apparent groups on its surface, such as C=C, C=O, -OH, C-O-C, etc. , composite, modification and other further research provid...

Claims

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Application Information

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IPC IPC(8): B01J21/18C02F1/30C02F101/38
Inventor 谢吉民侍明近魏巍高金荣韩合坤
Owner 镇江华科生态电镀科技发展有限公司
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