Efficient environmentally-friendly composite nanometer photocatalyst completely-efficient clearing agent for formaldehyde and preparation method thereof

A nano-photocatalyst and photocatalyst technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve problems such as unsatisfactory removal effects, and achieve the effects of easy control of the reaction process, efficient pollution rebound, and short reaction cycles

Inactive Publication Date: 2019-04-12
TIANJIN TAIHONG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nano-titanium dioxide is a new generation of formaldehyde removal agent that has been used more frequently in recent years and has a better effect, but its removal effect alone cannot meet the needs of the majority of users

Method used

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  • Efficient environmentally-friendly composite nanometer photocatalyst completely-efficient clearing agent for formaldehyde and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. The formulation components are as follows: 1000 parts of deionized water, 5 parts of photocatalyst, 4 parts of dispersing aid, 4 parts of dispersing agent, 4 parts of formaldehyde inducer, 2 parts of penetrating agent, 4 parts of astringent adsorbent and 1 part of tea poly phenol. Wherein, the mass ratio of nano-titanium dioxide, silver-loaded nano-titanium dioxide and nano-zinc dioxide in the photocatalyst is 1:0.05:0.5.

[0024] 2. The specific operation is as follows:

[0025] (1) Mix 1000 parts of water, 4 parts of dispersing aid and 4 parts of dispersing agent, and keep stirring until all components are completely dissolved to form A solution;

[0026] (2) add 5 parts of photocatalysts in the A solution gained in step (1), obtain the B colloid of white colloid;

[0027] (3) Put the colloid B obtained in step (2) into a three-necked flask, and at room temperature, add 4 parts of formaldehyde inducer, 2 parts of penetrant, 4 parts of astringent adsorbent and 1 p...

Embodiment 2

[0030] 1. The formula components are as follows: 1000 parts of deionized water, 10 parts of photocatalyst, 8 parts of dispersing aid, 8 parts of dispersing agent, 4 parts of formaldehyde inducer, 2 parts of penetrating agent, 4 parts of astringent adsorbent and 1 part of tea poly phenol. Wherein, the mass ratio of nano-titanium dioxide, silver-loaded nano-titanium dioxide and nano-zinc dioxide in the photocatalyst is 1:0.05:0.5.

[0031] 2. The specific operation is as follows:

[0032] (1) Mix 1000 parts of water, 8 parts of dispersing aid and 8 parts of dispersing agent, and keep stirring until all components are completely dissolved to form A solution;

[0033] (2) add 10 parts of photocatalysts in the gained A solution in step (1), obtain the B colloid of white colloid;

[0034] (3) Put the colloid B obtained in step (2) into a three-necked flask, and at room temperature, add 4 parts of formaldehyde inducer, 2 parts of penetrant, 4 parts of astringent adsorbent and 1 par...

Embodiment 3

[0037] 1. The formulation components are as follows: 1000 parts of deionized water, 15 parts of photocatalyst, 12 parts of dispersing aid, 12 parts of dispersing agent, 4 parts of formaldehyde inducer, 2 parts of penetrating agent, 4 parts of astringent adsorbent and 1 part of tea poly phenol. Wherein, the mass ratio of nano-titanium dioxide, silver-loaded nano-titanium dioxide and nano-zinc dioxide in the photocatalyst is 1:0.05:0.5.

[0038] 2. The specific operation is as follows:

[0039](1) Mix 1000 parts of water, 12 parts of dispersing aid and 12 parts of dispersing agent, and keep stirring until all components are completely dissolved to form A solution;

[0040] (2) add 15 parts of photocatalysts in the A solution gained in step (1), obtain the B colloid of white colloid;

[0041] (3) Put the colloid B obtained in step (2) into a three-necked flask, and at room temperature, add 4 parts of formaldehyde inducer, 2 parts of penetrant, 4 parts of astringent adsorbent an...

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Abstract

The invention discloses an efficient environmentally-friendly composite nanometer photocatalyst completely-efficient clearing agent for formaldehyde. The efficient environmentally-friendly composite nanometer photocatalyst completely-efficient clearing agent includes, by weight, 1000 parts of deionized water, 5-15 parts of photocatalyst, 4-12 parts of dispersing aids, 4-12 parts of a dispersing agent, 4-12 parts of formaldehyde inductive agent, 2-6 parts of a penetrating agent, 4-12 parts of an astringing adsorbent and 1 part of tea polyphenol. The clearing agent can accelerate release of paraformaldehyde and rapidly and safely degrade formaldehyde, solves problems from the source, is high in efficiency of removing formaldehyde, and avoids pollution rebound.

Description

technical field [0001] The invention relates to the field of scavenging agents, in particular to an efficient and environmentally friendly composite nano photocatalyst formaldehyde all-effect scavenger and a preparation method thereof. Background technique [0002] Formaldehyde, chemical formula HCHO or CH 2 O, formula weight 30.03, also known as formaldehyde. A colorless gas with a special pungent smell, which is irritating to human eyes and nose. Formaldehyde can be absorbed through the respiratory tract, and it causes damage to the body by causing an increase in tissue active oxygen, lipid peroxidation, affecting the body's immune system, and acting on biological macromolecules. Formaldehyde has a stimulating effect on the skin and mucous membranes, and has a sensitizing effect on the human body, which can cause allergic dermatitis, pigmentation, and bronchial asthma. It also has strong carcinogenicity and carcinogenesis, can cause nasopharyngeal carcinoma and leukemia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72
CPCB01D53/8668B01D2257/708
Inventor 胡忠宽戴德斌
Owner TIANJIN TAIHONG ENVIRONMENTAL PROTECTION TECH
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