Activated carbon-based formaldehyde removal material and preparation method thereof

A technology of activated carbon and formaldehyde, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve the problems of high application conditions, low aldehyde removal efficiency and high absorption rate, and achieve low application conditions and aldehyde removal efficiency. High and low cost effect

Inactive Publication Date: 2018-09-04
HAINAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of activated carbon-based formaldehyde-removing material and its preparation method in view of the deficiencies in the prior art, to prepare granular formaldehyde-removing materials with conventional raw materials such as attapulgite, activated carbon, graphite powder, potassium permanganate, etc., absorbing The efficiency is high, and the absorbed formaldehyde can be slowly degraded after applying a low voltage (3-24V), which solves the problems of low aldehyde removal efficiency, high application condition requirements, and high cost in the prior art

Method used

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  • Activated carbon-based formaldehyde removal material and preparation method thereof
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Examples

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Embodiment 1

[0018] 1. The configuration of titanium dioxide dispersion liquid: take nano-scale titanium dioxide at a concentration of 2% and place it in deionized water, stir it magnetically for 30 minutes (rotation number is 1000-1800r / min, temperature is 25-37°C), stir and dissolve, pour ultrasonic wave Disperse in a disperser for 40 minutes to prepare a titanium dioxide dispersion;

[0019] 2. Configuration of potassium permanganate solution: Dissolve potassium permanganate in deionized water at a concentration of 8%, stir magnetically for 30 minutes (rotation number is 1000-1800r / min, temperature is 25-37°C), and high Potassium manganate solution;

[0020] 3. Activated carbon loaded with potassium permanganate treatment: Weigh the activated carbon according to the mass ratio of 60% of the total mass of the finished material, crush it and pass through a 50-100 mesh sieve, pour it into 1 / 2 of the potassium permanganate solution, and stir it magnetically for 3 hours (The number of revol...

Embodiment 2

[0025] 1. The configuration of titanium dioxide dispersion liquid: take nano-scale titanium dioxide at a concentration of 5% and place it in deionized water, stir it magnetically for 40 minutes (rotation number is 1000-1800r / min, temperature is 25-37°C), stir and dissolve, pour ultrasonic wave Disperse in a disperser for 50 minutes to prepare a titanium dioxide dispersion;

[0026] 2. Configuration of potassium permanganate solution: Dissolve potassium permanganate in deionized water at a concentration of 10%, stir magnetically for 30 minutes (rotation number is 1000-1800r / min, temperature is 25-37°C), and high Potassium manganate solution;

[0027] 3. Activated carbon loaded with potassium permanganate treatment: Weigh the activated carbon according to the mass ratio of 55% of the total mass of the finished material, crush it and pass through a 50-100 mesh sieve, pour it into 1 / 2 of the potassium permanganate solution, and stir it magnetically for 4 hours (The number of revo...

Embodiment 3

[0032] 1. The configuration of titanium dioxide dispersion liquid: take nano-scale titanium dioxide at a concentration of 3% and place it in deionized water, stir it magnetically for 30 minutes (rotation number is 1000-1800r / min, temperature is 25-37°C), stir and dissolve, pour ultrasonic Disperse in a disperser for 30 minutes to prepare a titanium dioxide dispersion;

[0033] 2. Configuration of potassium permanganate solution: Dissolve potassium permanganate in deionized water at a concentration of 4%, and stir magnetically for 40 minutes (rotation number is 1000-1800r / min, temperature is 25-37°C), and high Potassium manganate solution;

[0034] 3. Activated carbon loaded with potassium permanganate treatment: Weigh the activated carbon according to the mass ratio of 65% of the total mass of the finished material, crush it and pass through a 50-100 mesh sieve, pour it into 1 / 2 of the potassium permanganate solution, and stir it magnetically for 5 hours (The number of revolu...

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Abstract

The invention belongs to the field of functional materials and relates to a method for preparing a material capable of realizing absorption and electrified degradation of formaldehyde. The method includes: preparing titanium dioxide dispersion liquid and potassium permanganate solution; adopting activated carbon and activated aluminum oxide powder to obtain activated carbon supported potassium permanganate and activated aluminum oxide supported potassium permanganate solution; pouring attapulgite and graphite powder and the activated carbon supported potassium permanganate into the activated aluminum oxide supported potassium permanganate solution, performing magnetic stirring, vacuum filtration, drying and grinding, pouring into titanium dioxide dispersion liquid, performing magnetic stirring and vacuum filtration to obtain particles, and processing at a high temperature to obtain a finished product. The method is simple in process; by adoption of the conventional materials including the attapulgite, the activated carbon, the graphite powder, the potassium permanganate and the like for preparation of the granular formaldehyde eliminating material, the formaldehyde eliminating material is high in formaldehyde absorption rate and capable of slowly degrading the absorbed formaldehyde after electrification, problems of low formaldehyde elimination efficiency, high application requirements, high cost and the like in the prior art are solved, and low cost, high formaldehyde elimination efficiency, freeness of pollution, low application requirements and the like are realized.

Description

technical field [0001] The invention belongs to the field of functional materials, and relates to a formaldehyde-removing material and a preparation method thereof, in particular to a granular formaldehyde-removing material with activated carbon as the main component, capable of absorbing and degrading formaldehyde by electrification, and a preparation method thereof. Background technique [0002] Formaldehyde is a colorless gas with a special pungent smell, which is irritating to human eyes and nose. Long-term, low-concentration exposure to formaldehyde can cause headache, dizziness, fatigue, sensory disturbance, decreased immunity, and drowsiness, memory loss or neurasthenia, mental depression, etc. The indoor concentration is greater than 0.08mg / m 3 High formaldehyde concentrations can cause red eyes, itchy eyes, throat discomfort or pain, hoarseness, sneezing, chest tightness, asthma, dermatitis, etc., which are the main cause of many diseases. [0003] At present, act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01D53/32B01D53/02B01J20/30
CPCB01D53/02B01D53/32B01D2257/708B01D2259/80B01J20/0274B01J20/06B01J20/08B01J20/12B01J20/20
Inventor 于旭东杜明吴繁花
Owner HAINAN UNIVERSITY
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