Preparation method of carbon aerogel adsorbent for oil contamination treatment and prepared carbon aerogel adsorbent

A carbon aerogel and carbon hydrogel technology, which is applied in adsorption water/sewage treatment, separation methods, other chemical processes, etc., can solve the problems of complex synthesis methods, high requirements for synthesis conditions, and expensive raw materials, and achieve a simple process. , low cost, no environmental pollution effect

Inactive Publication Date: 2014-04-30
CHANGZHOU HIGH TECH RES INST OF NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the synthesis method of this scheme is complicated, the requirements for...

Method used

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  • Preparation method of carbon aerogel adsorbent for oil contamination treatment and prepared carbon aerogel adsorbent
  • Preparation method of carbon aerogel adsorbent for oil contamination treatment and prepared carbon aerogel adsorbent
  • Preparation method of carbon aerogel adsorbent for oil contamination treatment and prepared carbon aerogel adsorbent

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Embodiment 1

[0025] Cut the melon raw material into a suitable shape and put it in a polytetrafluoroethylene hydrothermal reaction kettle, and place it in a homogeneous reactor at a temperature of 180°C for a hydrothermal reaction for 12 hours. After the reaction is complete, slowly cool to room temperature, and finally undergo repeated water heating. Washing and washing with ethanol; a carbon hydrogel is obtained. The carbon hydrogel wrapped in tinfoil was quickly frozen in liquid nitrogen at 77K, and then dried in a vacuum oven at a constant temperature of 25 °C for 12 hours to obtain a black spongy melon carbon airgel material.

Embodiment 2

[0027] Cut the raw material of watermelon pulp into a suitable shape and put it in a polytetrafluoroethylene hydrothermal reaction kettle, and conduct a hydrothermal reaction at a temperature of 180°C for 12 hours. After the reaction is complete, it is slowly cooled to room temperature, and finally washed with water and ethanol repeatedly; The wrapped carbon hydrogel was quickly frozen in liquid nitrogen at 77K, and then dried in a vacuum oven at a constant temperature of 25°C for 12 hours to obtain a black spongy watermelon pulp carbon airgel material.

Embodiment 3

[0029] Cut the loofah raw material into a suitable shape and put it in a polytetrafluoroethylene hydrothermal reaction kettle, and place it in a homogeneous reactor at a temperature of 180°C for a hydrothermal reaction for 12 hours. After the reaction is complete, slowly cool to room temperature, and finally repeat Washing with water and ethanol; after rapid freezing in liquid nitrogen at 77K, drying in a vacuum oven at a constant temperature of 25°C for 12 hours to finally obtain a black sponge-like loofah carbon airgel material.

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Abstract

The invention relates to a preparation method of a carbon aerogel material. The preparation method disclosed by the invention comprises the following steps: after cutting biomass melon, water melon flesh or loofah sponge, putting in a hydrothermal reaction kettle, carrying out hydrothermal reaction in a homogeneous reactor under closed conditions at 180 DEG C for 12 h, after reacting, gradually cooling to room temperature, then, washing, putting washed carbon aerogel in an oven at 60 DEG C for 1 h, wrapping by using a layer of silver paper, putting into a 77K liquid nitrogen tank, thoroughly freezing and drying, putting the obtained solid product in a vacuum drying tank at 25 DEG C for 12 h, slowly pumping out solid water content, and obtaining the carbon aerogel material. The carbon aerogel material disclosed by the invention has high specific surface area and mechanical intensity and ultra-low body density.

Description

Technical field: [0001] The invention relates to a production method of high-efficiency green carbon materials, in particular to a preparation method of a carbon material adsorbent using biomass as a raw material and a product thereof. Background technique: [0002] Because there are various water pollutions in both inland rivers and oceans, among them, oil pollution is the most common kind of water pollution. Industrial oily sewage has a large output and involves a wide range of areas, such as oil extraction, petroleum refining, petrochemicals, oil storage and transportation, oil tanker accidents, ship shipping, vehicle cleaning, machinery manufacturing, food processing, etc. Oily sewage will be generated. As a common pollution, oil pollution has caused great harm to aquatic resources, human health, and hydraulic construction. Today's oil-water separation technology commonly used methods include: gravity separation method, air flotation method, coarse graining method, filt...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F1/40
Inventor 庄韦周满陈强赵亚丽何臻
Owner CHANGZHOU HIGH TECH RES INST OF NANJING UNIV
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