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Diatom ooze capable of degrading formaldehyde

A diatom mud and formaldehyde technology, applied in the field of diatom mud, can solve the problem that diatom mud cannot really and effectively decompose formaldehyde, and achieve the effect of avoiding secondary pollution

Inactive Publication Date: 2018-05-25
HARBIN INST OF TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the existing diatom mud cannot effectively decompose formaldehyde in a normal indoor environment; it provides a formaldehyde-degradable diatom mud

Method used

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  • Diatom ooze capable of degrading formaldehyde
  • Diatom ooze capable of degrading formaldehyde

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specific Embodiment approach 1

[0024] Embodiment 1: The diatom ooze described in this embodiment is composed of the following components by weight:

[0025] Vanadium nitrogen modified titanium dioxide photocatalyst / diatomite composite diatom powder 45 parts, dispersible rubber powder 3 parts, hydroxypropyl methyl cellulose ether 0.5 parts, Portland cement 4 parts, gray calcium powder 10 parts, attapulgite 10 parts of powder, 15 parts of washed quartz sand, 10 parts of talcum powder, 1 part of plant fiber and 1 part of inorganic pigment.

[0026] The above-mentioned vanadium nitrogen modified titanium dioxide photocatalyst / diatomite composite diatom powder is prepared according to the following steps:

[0027] Step 1) Grind diatomite raw soil, pass through a 240-500-mesh sieve, add a sulfuric acid solution with a concentration of 40%-70%, stir continuously at room temperature for 4-8h, then wash and filter with deionized water, and then use deionized water to filter. Dried in an oven, calcined in a muffle f...

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Abstract

The invention relates to diatom ooze capable of degrading formaldehyde and belongs to the field of indoor decoration materials. The diatom ooze aims at solving the problem that the existing diatom ooze cannot effectively decompose formaldehyde truly in a normal indoor environment. The diatom ooze comprises the following ingredients: vanadium-nitrogen modified titanium dioxide photocatalyst / kieselguhr composite diatom powder, dispersible glue powder, hydroxypropyl methyl cellulose ether, silicate water, sierozem powder, attapulgite powder, water washed quartz sand, talcum powder, a plant fiberand an inorganic pigment. The diatom ooze can degrade formaldehyde, avoids pollution and is green and environment-friendly.

Description

technical field [0001] The invention belongs to the field of interior decoration materials, and in particular relates to a formaldehyde-degradable diatom mud. Background technique [0002] After "soot pollution" and "photochemical smog pollution", human beings are experiencing the third generation of pollution - "indoor pollution". The main source of indoor pollution is the building itself and interior decoration materials, and formaldehyde is the main pollutant released into the air by building materials and decoration materials, and the release time of formaldehyde is as long as 3 to 15 years. The national standard stipulates that the formaldehyde content in indoor air should be lower than 0.08mg / m 3 . In 2005, CCTV-2 conducted the first survey on the indoor environmental pollution of urban household decoration in cities nationwide. The results found that among the 566 households in the 22 cities surveyed, the average formaldehyde content of 71% of the residences exceede...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/04
CPCC04B20/04C04B28/04C04B2111/00017C04B14/08C04B2103/0057C04B24/383C04B22/064C04B14/102C04B14/06C04B14/042C04B16/02C04B2103/54C04B20/023
Inventor 贾近肖海英周凤张东兴邹晓虎
Owner HARBIN INST OF TECH
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