CN111229023B - Chemical degradation additive - Google Patents

Chemical degradation additive Download PDF

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Publication number
CN111229023B
CN111229023B CN201811439273.0A CN201811439273A CN111229023B CN 111229023 B CN111229023 B CN 111229023B CN 201811439273 A CN201811439273 A CN 201811439273A CN 111229023 B CN111229023 B CN 111229023B
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chemical degradation
hepes
nanogold
weight
parts
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CN111229023A (en
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邹晓虎
文起东
崔俊峰
文博
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Inner Mongolia Dongsheng Diatomite Technology Innovation Industrial Park Co ltd
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Inner Mongolia Dongsheng Diatomite Technology Innovation Industrial Park Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s

Abstract

The invention relates to a chemical degradation additive, belonging to the field of chemical degradation or photocatalytic additives. The invention provides a chemical degradation additive, which comprises HEPES and nanogold. The present invention can greatly increase the speed and the amount of chemical degradation. The invention has the following technical effects: by using the chemical degradation additive, the chemical degradation rate can be greatly improved, and the air pollution treatment is facilitated.

Description

Chemical degradation additive
Technical Field
The invention relates to a chemical degradation additive, belonging to the field of chemical degradation or photocatalytic additives.
Background
People often suffer from pollution of interior decoration materials, and the decoration materials are not environment-friendly, can cause pollution to the interior environment and harm human health. In order to treat air pollution, people generally adsorb harmful gases by physical adsorption or chemical degradation. However, the chemical degradation method in the prior art has low efficiency and slow degradation speed, and therefore, it is urgently needed to find an additive which can greatly enhance the rate of chemical degradation.
Disclosure of Invention
The object of the present invention is to overcome the disadvantages of the prior art measures and to provide a chemical degradation additive which allows a substantial increase in the rate and amount of chemical degradation.
In order to achieve the object of the present invention, the present invention provides a chemical degradation additive comprising HEPES and nanogold.
Further, in the above chemical degradation additive, the HEPES is 10-100 mmol per liter.
Further, in the chemical degradation additive, the HEPES is 100 millimoles per liter, and the nano gold is 0.1-5 nanomoles per liter.
Further, in the chemical degradation additive, the nano gold is 5 nanomole per liter.
Further, the chemical degradation additive also comprises titanium dioxide.
The invention has the following technical effects: by using the chemical degradation additive, the chemical degradation rate can be greatly improved, and the air pollution treatment is facilitated.
Drawings
FIG. 1 shows the concentration of nanogold and H in the present invention2O2And generating a graph of the relation of the relative quantity.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art, and the raw materials used are commercially available products.
In order to remove organic pollutants from indoor environments, diatomaceous earth is generally used for physical adsorption. Diatomaceous earth is a rock pile formed by settling in a marine lake by plant plankton belonging to algae. The unicellular plant biological algae can unusually absorb silicate in water to form porous cell wall, and the remains precipitate and petrifaction to form 'diatomite' with silicic acid as main component. The microporous structure ensures that the diatomite has good absorption effect on harmful gases such as organic pollutants and the like in the indoor environment. However, the greatest problem with physical adsorption is the presence of saturation. Therefore, the organic pollutants adsorbed in the diatomite must be chemically degraded to treat the harmful gases more thoroughly and keep the environment clean. The search for an efficient additive to promote the rate of chemical degradation or photocatalysis is a problem that needs to be solved urgently. The inventor finds that the nanogold has a good effect of promoting chemical degradation or photocatalysis on HEPES (4-hydroxyethyl piperazine ethanesulfonic acid) through multiple experiments. HEPES can be fixed at 10-100 mmoles per liter for the experiments.
Table 1 below shows the H produced at a constant concentration of nano-gold in HEPES2O2In relation to the relative amount ofExperimental data.
TABLE 1
Figure GDA0003326840240000031
As shown in Table 1, H2O2Is proportional to the amount of HEPES oxidation product produced, which has a characteristic absorption peak at 350 nanometers (nm), so that H can be measured by measuring the intensity of the characteristic absorption peak at 350nm with an ultraviolet-visible spectrophotometer2O2Relative production amount of (2).
The data in Table 1 show that the higher the concentration of nanogold, the higher the concentration of HEPES, the more H is generated at a constant HEPES concentration2O2The greater the relative amount of (a). FIG. 1 shows the concentration of nanogold and H in the present invention2O2Generating a graph of the relation of relative quantity, in FIG. 1, series 1 represents the concentration of the nano-gold, series 2 represents H2O2Generating relative quantities. As can be seen from the figure, the concentration of the nano-gold is substantially equal to that of H2O2A proportional relationship of relative quantities is generated. Organic pollutants adsorbed by diatomite are easier to be H2O2And oxidative degradation. HEPES is a photosensitive material that can chemically degrade or photo-catalyze organic contaminants. Thus, the chemical degradation or photocatalytic capacity of HEPES can be enhanced by adding nanogold. Therefore, organic pollutants adsorbed by the diatomite can be quickly separated from H by adding certain amounts of HEPES and nanogold to the diatomite material2O2And oxidative degradation.
Table 2 below shows a comparison of the ability of the diatomaceous earth material to oxidatively degrade formaldehyde after addition of HEPES and nanogold (0.5 cubic meters in a glass-sealed test chamber with half an hour degradation time).
TABLE 2
Figure GDA0003326840240000032
Figure GDA0003326840240000041
As shown in table 2 above, the ability of the diatomite material to oxidatively degrade formaldehyde after adding HEPES and nanogold is greatly enhanced with the increase of the nanogold concentration.
In addition, the nanogold can chemically degrade organic pollutants adsorbed by the diatomite.
Generally, titanium dioxide is a photocatalyst, and can be used for photocatalytic degradation of organic pollutants under illumination conditions. Meanwhile, HEPES and nanogold are added, so that organic pollutants can be degraded in a better photocatalytic manner under the illumination condition, and can also be degraded under the condition without illumination.
In one embodiment of the present invention, the diatomite layer may include 50-60 parts by weight of diatomite and 0.0000001-0.01 part by weight of nano gold.
In another embodiment of the present invention, the diatomite layer may include 50-60 parts by weight of diatomite, 0.1-5 parts by weight of HEPES, and 0.0000001-0.01 parts by weight of nanogold.
In still another embodiment of the present invention, the diatomite layer may include 50-60 parts by weight of diatomite, 5-10 parts by weight of titanium dioxide, 0.1-5 parts by weight of HEPES, 0.0000001-0.01 parts by weight of nanogold.
In still another embodiment of the present invention, the diatomite layer may include 50-60 parts by weight of diatomite, 10-15 parts by weight of plant fiber, 5-10 parts by weight of bentonite, 5-10 parts by weight of titanium dioxide, 0.1-5 parts by weight of HEPES, 0.0000001-0.01 parts by weight of nanogold.
In addition, the diatomite layer can also comprise 1-15 parts by weight of foaming agent.
Regarding the preparation of the adsorbing material, specifically, firstly, 50 to 60 parts by weight of diatomite, 10 to 15 parts by weight of plant fiber and 5 to 10 parts by weight of bentonite are put into a dispersion machine for dispersion treatment; then adding 1-15 parts by weight of a foaming agent to stir for sufficient dissolution to obtain a diatomaceous earth dispersion; then, 5-10 parts by weight of titanium dioxide, 0.1-5 parts by weight of HEPES and/or 0.0000001-0.01 parts by weight of nanogold may be added. Finally, a copolymer emulsion of vinyl versatate manufactured by UK Shell chemical company was added to prepare a diatomaceous earth paint.
The diatomite coating can be coated on the outer sides of a toilet bowl body, a bathtub and a cabinet plate of a bathroom cabinet made of acrylic materials to form diatomite layers, so that organic pollutants are chemically degraded.
The above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention should be included.

Claims (4)

1. A chemical degradation additive, which is characterized by comprising diatomite, HEPES and nanogold, wherein the HEPES is 10-100 millimoles per liter, and the nanogold is 0.1-5 nanomoles per liter.
2. The chemical degradation additive according to claim 1, wherein the HEPES is 100 mmole per litre.
3. The chemical degradation additive of claim 2, wherein the nanogold is 5 nanomoles per liter.
4. The chemical degradation additive of claim 3 further comprising titanium dioxide.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962526A2 (en) * 1998-05-29 1999-12-08 QIAGEN GmbH Method for reversible modification of thermostable enzymes
CN1526732A (en) * 1999-01-30 2004-09-08 \ Process for producing high pureness albumin solution
CN1798840A (en) * 2003-03-19 2006-07-05 比奥根艾迪克Ma公司 NOGO receptor binding protein.
CN102170903A (en) * 2008-05-02 2011-08-31 癌症研究技术有限公司 Products and methods for stimulating an immune response
CN103201008A (en) * 2010-08-06 2013-07-10 莫利康普矿物有限责任公司 Agglomeration of high surface area rare earths

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962526A2 (en) * 1998-05-29 1999-12-08 QIAGEN GmbH Method for reversible modification of thermostable enzymes
CN1526732A (en) * 1999-01-30 2004-09-08 \ Process for producing high pureness albumin solution
CN1798840A (en) * 2003-03-19 2006-07-05 比奥根艾迪克Ma公司 NOGO receptor binding protein.
CN102170903A (en) * 2008-05-02 2011-08-31 癌症研究技术有限公司 Products and methods for stimulating an immune response
CN103201008A (en) * 2010-08-06 2013-07-10 莫利康普矿物有限责任公司 Agglomeration of high surface area rare earths

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