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Preparation method of novel formaldehyde removing active carbon

A technology of activated carbon and formaldehyde, applied in separation methods, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of complex components and various processes, and achieve the effect of improving the ability to remove formaldehyde

Inactive Publication Date: 2018-06-12
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention has complex components and various processes, and is not suitable for the removal of formaldehyde molecules in the air

Method used

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  • Preparation method of novel formaldehyde removing active carbon

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Effect test

Embodiment 1

[0017] First, disperse 100.0g of activated carbon, 10.0g of graphene, and 10.0g of butyl titanate into 1000mL of isopropanol to form a mixed solution. The mixed solution was stirred at 90°C for 40min at a stirring rate of 200r / min, and then water The product of the thermal reaction is filtered, and the filtered product is vacuum heat-treated at 600°C for 10 hours to obtain a new formaldehyde-removing activated carbon.

Embodiment 2

[0019] First, disperse 100.0g of activated carbon, 0.1g of graphene, 0.5g of expanded graphite, and 1.0g of polyvinylpyrrolidone into 1000mL of methanol to form a mixed solution, and stir the mixed solution at 30°C for 30min at a stirring rate of 200r / min, then The product of the hydrothermal reaction is filtered, and the filtered product is vacuum heat-treated at 800°C for 8 hours to obtain a new formaldehyde-removing activated carbon.

Embodiment 3

[0021] First, disperse 10.0g of activated carbon with 1.0g of graphene, 0.1g of sodium dodecylsulfonate into 10L of water, methanol, ethanol and isopropanol (v / v / v / v=1:1:1:1) and mix A mixed solution is formed in the solvent, and the mixed solution is stirred at 20°C for 3 hours at a stirring rate of 400r / min, then the product of the hydrothermal reaction is filtered, and the filtered product is vacuum heat-treated at 500°C for 12 hours to obtain a new formaldehyde-removing product Activated carbon.

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Abstract

The invention discloses a preparation method of novel formaldehyde removing active carbon. The method includes steps of dispersing active carbon, graphene and surface assistant in solvent, and formingmixed solution; then processing the mixed solution by a hydrothermal method; filtering and then performing vacuum thermal treatment on the filter product, so as to obtain the novel formaldehyde removing active carbon. The method is simple in technique and convenient to operate; the prepared product has excellent formaldehyde removing effect; the formaldehyde removing removal rate for 60 minutes is up to over 95%; compared with a traditional untreated active carbon, the formaldehyde removing ability is improved by 50%, thus the formaldehyde removing efficiency is improved, and air quality is effectively improved.

Description

Technical field [0001] The invention relates to the field of activated carbon-based composite materials, in particular to a preparation method of a novel formaldehyde-removing activated carbon. Background technique [0002] Activated carbon material is an amorphous carbon obtained through processing, which has a large specific surface area, and its formaldehyde removal ability depends on the degree of development of the activated carbon pore structure. The formaldehyde-removing activated carbon sold on the market now has a formaldehyde removal rate of 40-60% within 60 minutes. The formaldehyde removal rate is not high, and the formaldehyde hidden danger is relatively large. [0003] Graphene is a single atomic layer, including graphene, single-layer graphene oxide, double-layer graphene oxide, multi-layer graphene oxide, etc. Its lateral size can be extended to tens of microns, and its specific surface area is very high. It has great advantages in formaldehyde adsorption. ...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30B01D53/02C01B32/372
CPCB01D53/02B01D2257/70B01J20/20
Inventor 高超韩燚孙海燕江腾腾
Owner HANGZHOU GAOXI TECH CO LTD
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