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Nano-titanium dioxide herbal extract formaldehyde removal agent

A technology of nano-titanium dioxide and extracts, which is applied in the direction of pest repellents, animal repellents, plant growth regulators, etc., can solve the problems of no effect of pollutants, easy damage and re-release, incomplete removal, etc., to achieve the goal of making Low cost, fast-acting and long-lasting, enhanced adsorption and antibacterial effects

Inactive Publication Date: 2017-12-26
TAICANG HONGSHAN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the formaldehyde removers on the market can be basically divided into four categories: sealed formulations, which temporarily cover and seal formaldehyde, but are easily damaged and released again; oxidizing agents, which oxidize free formaldehyde molecules, but have no effect on polluting the interior and re-released pollutants. Function, large limitations when used; ammonia derivative type, nucleophilic addition reaction with formaldehyde, but excessive use will cause ammonia pollution, cause secondary pollution and not easy to remove; amino acid type, amino acid and formaldehyde react to form polymer compounds, However, there are problems such as insufficient response, incomplete removal, and low efficiency.

Method used

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Effect test

Embodiment 1

[0027] A nano-titanium dioxide herbal extract aldehyde remover, wherein the solid content of titanium dioxide colloid in the nano-titanium dioxide herbal extract aldehyde is 15%.

[0028] The preparation method of the nano-titanium dioxide herbal extract aldehyde-removing agent comprises the following steps:

[0029] (1) Wash wild mugwort leaves, camphor leaves, borneol, honeysuckle, houttuynia cordata, pepper, tongcao, cloves, mint leaves, comfrey, dandelion, calamus, windproof, lavender, hyacinth, dry and After mixing, pulverize into fine powder for later use;

[0030] (2) Add the fine powder of step (1) into the extraction tank, add 8 times the weight of solvent, soak at 50°C for 4h, then heat and reflux at 60°C for 1h, and filter to obtain the filter residue and filtrate;

[0031] (3) The filter residue of step (2) is pulverized to 20 meshes with an ultrasonic pulverizer, 5 times the weight of solvent is added, reflux extraction is performed at 80° C. for 8 hours to obtai...

Embodiment 2

[0040] A nano titanium dioxide herbal extract aldehyde remover, wherein the solid content of titanium dioxide colloid in the nano titanium dioxide herbal extract aldehyde remover is 25%.

[0041] The preparation method of the nano-titanium dioxide herbal extract aldehyde-removing agent comprises the following steps:

[0042] (1) Wash wild mugwort leaves, camphor leaves, borneol, honeysuckle, houttuynia cordata, pepper, tongcao, cloves, mint leaves, comfrey, dandelion, calamus, windproof, lavender, hyacinth, dry and After mixing, pulverize into fine powder for later use;

[0043] (2) Add the fine powder of step (1) into the extraction tank, add 16 times the weight of solvent, soak at 60°C for 8h, then heat and reflux at 80°C for 2h, and filter to obtain the filter residue and filtrate;

[0044] (3) Grinding the filter residue of step (2) to 20 meshes with an ultrasonic pulverizer, adding 10 times the weight of solvent, reflux extraction at 80°C for 8 hours to obtain an extract...

Embodiment 3

[0053] A nano titanium dioxide herbal extract aldehyde remover, wherein the solid content of titanium dioxide colloid in the nano titanium dioxide herbal extract aldehyde remover is 20%.

[0054] The preparation method of the nano-titanium dioxide herbal extract aldehyde-removing agent comprises the following steps:

[0055] (1) Wash wild mugwort leaves, camphor leaves, borneol, honeysuckle, houttuynia cordata, pepper, tongcao, cloves, mint leaves, comfrey, dandelion, calamus, windproof, lavender, hyacinth, dry and After mixing, pulverize into fine powder for later use;

[0056] (2) Add the fine powder of step (1) into the extraction tank, add 12 times the weight of solvent, soak at 55°C for 6h, then heat and reflux at 70°C for 1.5h, and filter to obtain the filter residue and filtrate;

[0057](3) Grind the filter residue of step (2) to 20 meshes with an ultrasonic pulverizer, add 8 times the weight of solvent, reflux and extract at 80°C for 8 hours to obtain an extract, cen...

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Abstract

The invention relates to a nano-titanium dioxide herbal extract formaldehyde removal agent. By virtue of the mutual compatibility of various natural herbaceous plants and the compounding of nano-titanium dioxide and kaolin, the formaldehyde removal agent is wide in raw material sources, low in cost and contains multiple active groups, amino and formaldehyde generate nucleophilic addition reaction, hydroxyl and formaldehyde generate electrophilic addition reaction, aldehyde group substances and formaldehyde generate aldol condensation reaction, and irreversible chemical reactions are generated with formaldehyde, so that the formaldehyde is eliminated, the formaldehyde removal rate reaches up to 95%, and the sterilizing rate reaches 90%; nano-titanium dioxide is large in specific surface area, controllable in particle size and good in dispersity and is compounded and crosslinked with a natural herbaceous plant extracting solution, so that the adsorption, bacteriostasis and sterilization functions of the formaldehyde removal agent are enhanced; the formaldehyde removal agent has no toxicity to a human body, does not cause environmental pollution, is high in speed and good in durability, has effects of formaldehyde elimination, air purification, sterilization, disinfection and mosquito repelling and is further capable of relieving fatigue and restoring consciousness; and a production process is simple, and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a nano-titanium dioxide herbal extract aldehyde remover. Background technique [0002] Many household items such as interior decoration materials, furniture, and textiles can release toxic gases such as free formaldehyde, benzene, and TVOC. Formaldehyde is one of the most serious indoor pollution sources and has been determined by the World Health Organization as a carcinogenic and teratogenic substance; formaldehyde has the longest volatilization period, and its hazards are manifested as strong irritation to the upper respiratory tract mucous membrane, eyes and skin, causing headaches , dizziness and other symptoms, severe respiratory irritation and edema will occur when the inhalation concentration is too high; formaldehyde is one of the important factors that produce diseases such as bad building syndrome and building-related syndrome. [0003] Aldehyde remover is a ...

Claims

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Application Information

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IPC IPC(8): B01D53/81B01D53/72A01N65/40A01N31/06A01P1/00A01P17/00
CPCA01N31/06A01N65/00A01N65/40B01D53/72B01D53/81B01D2258/06A01N2300/00Y02A50/30
Inventor 徐律
Owner TAICANG HONGSHAN ENVIRONMENTAL PROTECTION TECH CO LTD
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