CN110772988A - Photocatalyst air purifying agent and preparation method thereof - Google Patents
Photocatalyst air purifying agent and preparation method thereof Download PDFInfo
- Publication number
- CN110772988A CN110772988A CN201911224271.4A CN201911224271A CN110772988A CN 110772988 A CN110772988 A CN 110772988A CN 201911224271 A CN201911224271 A CN 201911224271A CN 110772988 A CN110772988 A CN 110772988A
- Authority
- CN
- China
- Prior art keywords
- titanium dioxide
- parts
- purifying agent
- water
- metal compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- 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
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The invention relates to the technical field of photocatalysts, in particular to a photocatalyst air purifying agent and a preparation method thereof. A photocatalyst air purifying agent at least comprises the following components in parts by weight: 5-20 parts of metal compound, 10-30 parts of mineral, 1-10 parts of peroxide and 100 parts of water. The purifying agent provided by the invention has excellent low-temperature stability, low cost, good purifying effect, safety, no toxicity, invisibility after use, no white spot generation and wide application range.
Description
Technical Field
The invention relates to the technical field of photocatalysts, in particular to a photocatalyst air purifying agent and a preparation method thereof.
Background
Air pollution has become a big invisible killer in people's life, harmful gases in various buildings, decorations, homes, automobiles and the atmosphere seriously exceed standards to cause various diseases and even death, and meanwhile, the spread of various infectious bacteria and viruses seriously threatens the health of human beings.
There are two main methods of air purification currently in use, one is to spray an aerosol such as air purifier; secondly, the air is purified by adopting an air purifying device, but the defects exist. The former causes secondary pollution, the latter has high equipment investment cost, and the purification effect of the two methods is not ideal.
Titanium dioxide is used as a common photocatalyst, has the advantages of large specific surface area, high photocatalytic and absorption capacity, high weather resistance, high chemical corrosion resistance, no toxicity to human bodies and the like, has a certain application in the field of photocatalysis, and can realize the functions of preparing hydrogen by hydrolysis, removing harmful substances and the like by absorbing photons and generating redox free radicals on the surface of the titanium dioxide to perform chemical reaction with external substances. However, when a photocatalyst solution is prepared using titanium dioxide, satisfactory purification effect cannot be exhibited due to problems such as poor dispersion stability of titanium dioxide particles, poor solution stability, and the like.
Aiming at the problems, the invention provides the photocatalyst air purifying agent with good stability and good purifying effect.
Disclosure of Invention
In order to solve the technical problems, the first aspect of the invention provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 5-20 parts of metal compound, 10-30 parts of mineral, 1-10 parts of peroxide and 100 parts of water.
In a preferred embodiment of the present invention, the metal compound is at least one selected from the group consisting of titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, ferric oxide, lead sulfide, zinc sulfide, silicon dioxide, and tin dioxide.
In a preferred embodiment of the present invention, the metal compound has a particle size of 1 to 100 nm.
In a preferred embodiment of the present invention, the metal compound is a metal compound coated with a charged compound.
As a preferable technical solution of the present invention, the charged compound is at least one selected from silicate, polyacrylate, carboxylate, sulfonate, sulfate, phosphate, amine salt, quaternary ammonium salt, and a salt of a sulfonic acid.
In a preferred embodiment of the present invention, the mineral has a particle size of 0.01 to 10 μm.
In a preferred embodiment of the present invention, the mineral is at least one selected from the group consisting of zeolite, montmorillonite, sepiolite, palygorskite, expanded vermiculite, bentonite, diatomaceous earth, perlite, porous opal, attapulgite, and white carbon black.
In a preferred embodiment of the present invention, the peroxide is at least one selected from the group consisting of metal peroxides, hydrogen peroxide, peroxoates, and organic peroxides.
In a preferred embodiment of the present invention, the peroxide is a peroxycarbonate.
The second aspect of the invention provides a preparation method of the purifying agent, which comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Has the advantages that: the invention provides a photocatalyst air purifying agent which is prepared from a metal compound, minerals, peroxide and water. The purifying agent provided by the invention has excellent low-temperature stability, low cost, good purifying effect, safety, no toxicity, invisibility after use, no white spot generation and wide application range.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
In order to solve the technical problems, the first aspect of the invention provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 5-20 parts of metal compound, 10-30 parts of mineral, 1-10 parts of peroxide and 100 parts of water.
Preferably, the purifying agent at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
Metal compound
In the present invention, the metal compound is at least one selected from titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, ferric oxide, lead sulfide, zinc sulfide, silicon dioxide, and tin dioxide.
Preferably, the metal compound has a particle size of 1 to 100 nm.
Preferably, the metal compound is a metal compound coated with a charged compound.
Preferably, the charged compound is at least one selected from the group consisting of silicate, polyacrylate, carboxylate, sulfonate, sulfate, phosphate, amine salt, quaternary ammonium salt, and xanthate.
More preferably, the metal compound is titanium dioxide.
More preferably, the titanium dioxide has a particle size of 10 to 50 nm.
Most preferably, the titanium dioxide has a particle size of 15 nm.
In the present invention, the titanium dioxide is not particularly limited, and may be purchased from, but not limited to, Jippon New Material GmbH, model Nos. CY-T15 and CY-TA 15.
More preferably, the charged compound is a negatively charged compound.
Most preferably, the negatively charged compound is sodium polyacrylate.
Most preferably, the metal compound is sodium polyacrylate coated titanium dioxide.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 50-70 ℃, the rotating speed at 300-500r/min, and stirring for 20-30 min;
(2) adding the mixed solution obtained in the step (1) into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 50-70 ℃ and 50-60Hz for 30-60 min;
(3) and (3) filtering, drying, crushing and sieving the mixed solution obtained in the step (2) to obtain the compound.
Preferably, the sodium stearate is added in an amount of 1 to 3% by weight based on the weight of titanium dioxide.
Preferably, in the step (1), the concentration of the titanium dioxide is 15 to 25%.
Preferably, in the step (2), the mass ratio of betaine to sodium polyacrylate is 1: (1-3).
Preferably, in the step (2), betaine and sodium polyacrylate are added in a total amount of 1.5-3% by weight of titanium dioxide.
Preferably, in the step (3), the drying is performed at a temperature of 80 to 100 ℃ until the water content of the titanium dioxide is 8 to 12%.
The sodium polyacrylate is not particularly limited and may be purchased from, but not limited to, nabobism chemical company, ltd.
More preferably, the preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 15%; the addition amount of the sodium stearate is 1.5 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 2; the total amount of the betaine and the sodium polyacrylate added is 2.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
In the invention, the titanium dioxide coated by the charged compound is used, so that the stability of the purifying agent under the condition of low temperature (below 0 ℃) is obviously improved, and the purifying effect under the condition of low temperature is also obviously improved compared with the titanium dioxide not coated by the charged compound. The inventors consider that possible reasons are: under the condition of low temperature, the resistance of the titanium dioxide coated with the water molecule crystal extrusion charged compound is increased, and the titanium dioxide particles are not easy to aggregate. Therefore, the stability and the purification effect of the purifying agent under the low-temperature condition are obviously improved.
Mineral substance
In the invention, the mineral is a nano-scale porous mineral with the particle size of 0.01-10 μm.
In the present invention, the mineral is at least one selected from zeolite, montmorillonite, sepiolite, palygorskite, expanded vermiculite, bentonite, diatomaceous earth, perlite, porous opal, attapulgite and white carbon black.
Preferably, the mineral is montmorillonite with a particle size of 0.2-1 μm.
The above-mentioned montmorillonite is not particularly limited, and is commercially available from, but not limited to, Beijing Bangshi Biotech Co.
The inventors believe that montmorillonite has ion exchange properties, primarily with cations such as Na
+、Ca
2+、K
+、Mg
2+、Li
+、H
+、Al
3+Etc., and the exchange is reversible. The titanium dioxide coated by negative charges can perform ion exchange with montmorillonite, and montmorillonite and titanium dioxide can be effectively dissolved in water by the mutual repulsion and electrostatic adsorption of the same charges, rather than precipitation and aggregation. Secondly, the montmorillonite has strong interlayer ion exchange and positioning adsorption capacity, and can directionally adsorb vibrio cholerae, campylobacter jejuni, escherichia coli, aflatoxin, gibberellin ketone,Mold pathogens, etc., rendering them inactive.
Peroxides and their use in the preparation of pharmaceutical preparations
In the present invention, the peroxide is at least one selected from the group consisting of metal peroxides, hydrogen peroxide, peroxoacid salts, and organic peroxides.
Preferably, the peroxide is a peroxycarbonate.
More preferably, the peroxide is sodium percarbonate.
In the invention, the sodium percarbonate contains more active oxygen, can oxidize, decompose and remove peculiar smell of organic matters, pollutants, odor, bacteria and the like, has higher solubility and is beneficial to the preparation of a solution with high active oxygen content. The inventors have surprisingly found that sodium percarbonate can maintain an effective dispersion of titanium dioxide in water. In addition, the mineral powder contains Ca
2+、Mg
2+、Al
3+And the metal ions can be used as catalysts for decomposing hydrogen peroxide and sodium percarbonate in a purifying agent solution, so that the stability of sodium peroxide is reduced, and the content of active oxygen is insufficient. The inventor finds that the sodium polyacrylate coated with titanium dioxide can fix the metal ions through chelation and complexation reaction to passivate the metal ions, cannot participate in promoting the decomposition of sodium percarbonate, improves the stability of the sodium percarbonate in the purifying agent and the content of active oxygen, and further improves the purifying capacity of the purifying agent.
Water (W)
In the present invention, the water is not particularly limited, and tap water, deionized water, distilled water, etc. may be mentioned.
The second aspect of the invention provides a preparation method of the purifying agent, which comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Examples
Example 1
Embodiment 1 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 15%; the addition amount of the sodium stearate is 1.5 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 2; the total amount of the betaine and the sodium polyacrylate added is 2.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is montmorillonite with particle size of 0.6 + -0.4 μm, and is available from Beijing Bangshi Biotech, Inc.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 2
Embodiment 2 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 5 parts of metal compound, 10 parts of mineral, 1 part of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 20%; the addition amount of the sodium stearate is 1 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 1; the total amount of the betaine and the sodium polyacrylate is 1.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is montmorillonite with particle size of 0.6 + -0.4 μm, and is available from Beijing Bangshi Biotech, Inc.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 3
Embodiment 3 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 20 parts of metal compound, 30 parts of mineral, 10 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 25%; the addition amount of the sodium stearate is 3 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 3; the total amount of the betaine and the sodium polyacrylate is 3 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is montmorillonite with particle size of 0.6 + -0.4 μm, and is available from Beijing Bangshi Biotech, Inc.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 4
Embodiment 4 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the titanium dioxide has a particle size of 275 +/-25 nm and is purchased from Heizhou rich chemical Co.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 15%; the addition amount of the sodium stearate is 1.5 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 2; the total amount of the betaine and the sodium polyacrylate added is 2.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is montmorillonite with particle size of 0.6 + -0.4 μm, and is available from Beijing Bangshi Biotech, Inc.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 5
Embodiment 5 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The mineral is montmorillonite with particle size of 0.6 + -0.4 μm, and is available from Beijing Bangshi Biotech, Inc.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 6
Embodiment 6 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by a cationic surfactant; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the titanium dioxide coated with the cationic active agent comprises the following steps:
(1) mixing methanol and water according to the volume ratio of 2: 3 to obtain a mixed solution;
(2) taking out a certain amount of mixed solution, putting titanium dioxide into the mixed solution, and performing ultrasonic dispersion for 30min to obtain a first mixture;
(3) dissolving a certain amount of mixed solution into the sulfonic acid resin, and stirring for 30min to be uniform to obtain a second mixture, wherein the mass concentration of the sulfonic acid resin in the second mixture is 5%;
(4) mixing the first mixture and the second mixture according to the weight ratio of the titanium dioxide to the sulfonic acid resin of 100: 10, and performing ultrasonic dispersion for 50min to obtain a third mixture;
(5) and drying the third mixture at 60 ℃, and grinding to obtain the titanium dioxide with the surface uniformly coated with the sulfonic acid resin.
The mineral is montmorillonite with particle size of 45 μm, and is available from Ningcheng Tianyu Bentoniaceae, Inc. of inner Mongolia, model TY-X2.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 7
Embodiment 7 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 15%; the addition amount of the sodium stearate is 1.5 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 2; the total amount of the betaine and the sodium polyacrylate added is 2.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is montmorillonite with particle size of 45 μm, and is purchased from processing plant of Malin mineral in Ling shou county.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 8
Embodiment 8 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 15%; the addition amount of the sodium stearate is 1.5 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 2; the total amount of the betaine and the sodium polyacrylate added is 2.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is diatomite with a particle size of 4 μm, and is purchased from Qingdao Chuan diatomite Co.
The peroxide is sodium peroxycarbonate.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 9
Embodiment 9 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral, 6 parts of peroxide and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 15%; the addition amount of the sodium stearate is 1.5 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 2; the total amount of the betaine and the sodium polyacrylate added is 2.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is montmorillonite with particle size of 0.6 + -0.4 μm, and is available from Beijing Bangshi Biotech, Inc.
The peroxide is sodium peroxide.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Example 10
Embodiment 10 provides a photocatalyst air purifying agent, which at least comprises the following components in parts by weight: 15 parts of metal compound, 20 parts of mineral and 100 parts of water.
The metal compound is titanium dioxide coated by sodium polyacrylate; the particle size of the titanium dioxide is 15nm, and the titanium dioxide is purchased from Jiufong New Material, Inc. of Hangzhou, model CY-T15.
The preparation method of the sodium polyacrylate coated titanium dioxide comprises the following steps:
(1) conveying titanium dioxide to a surface treatment tank, adding sodium stearate and water, controlling the temperature at 60 ℃, and stirring at the rotating speed of 300r/min for 30min to obtain a titanium dioxide solution with the mass concentration of 15%; the addition amount of the sodium stearate is 1.5 percent of the weight of the nano titanium dioxide;
(2) adding the titanium dioxide solution into an ultrasonic generator, adding betaine and sodium polyacrylate, and performing ultrasonic treatment at 60 ℃ and 50Hz for 40min to obtain a sodium polyacrylate coated titanium dioxide solution; the mass ratio of the betaine to the sodium polyacrylate is 1: 2; the total amount of the betaine and the sodium polyacrylate added is 2.5 percent of the weight of the nano titanium dioxide;
(3) and then filtering the solution of titanium dioxide coated with sodium polyacrylate, drying the filter cake at 100 ℃ until the water content of the titanium dioxide is 12%, crushing and sieving to obtain the titanium dioxide filter cake.
The mineral is montmorillonite with particle size of 0.6 + -0.4 μm, and is available from Beijing Bangshi Biotech, Inc.
The water is deionized water.
The preparation method of the purifying agent comprises the following steps: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Performance testing
1. And (3) low-temperature stability test: putting the sample into a refrigerator at-10 ℃ for 1h, and observing whether a precipitate is generated or not to judge the low-temperature stability of the sample; if no precipitate is generated, the stability is obtained; otherwise, it is unstable.
The test results are shown in Table 1.
TABLE 1. results of the scavenger stability test provided in examples 1-10
2. Air purification performance test
Firstly, ammonia gas (100 mg/m) is filled into 10 cars
3) The ammonia gas concentration in a car was measured after spraying treatment with 100mL of each of the purifiers provided in examples 1 to 10 and sufficient illumination. The test results are shown in Table 2.
TABLE 2 test results of air purifying performance of purifiers provided in examples 1 to 10
The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.
Claims (10)
1. The photocatalyst air purifying agent is characterized by at least comprising the following components in parts by weight: 5-20 parts of metal compound, 10-30 parts of mineral, 1-10 parts of peroxide and 100 parts of water.
2. The purifying agent according to claim 1, wherein the metal compound is at least one selected from titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, ferric oxide, lead sulfide, zinc sulfide, silicon dioxide and tin dioxide.
3. The purifying agent as claimed in claim 1, wherein the particle size of the metal compound is 1 to 100 nm.
4. The purifying agent according to claim 1, wherein the metal compound is a charged compound-coated metal compound.
5. The purifying agent according to claim 4, wherein the charged compound is at least one selected from silicates, polyacrylates, carboxylates, sulfonates, sulfates, phosphates, amine salts, quaternary ammonium salts and xanthates.
6. The purifying agent as claimed in claim 1, wherein the mineral has a particle size of 0.01 to 10 μm.
7. The purifying agent according to claim 1, wherein the mineral is at least one selected from zeolite, montmorillonite, sepiolite, palygorskite, expanded vermiculite, bentonite, diatomite, perlite, porous opal, attapulgite and white carbon black.
8. The purifying agent as claimed in claim 1, wherein the peroxide is at least one selected from the group consisting of metal peroxides, hydrogen peroxide, peroxoacid salts, and organic peroxides.
9. The purification agent as claimed in claim 8, wherein the peroxide is a peroxycarbonate.
10. A method for preparing a purifying agent according to any one of claims 1 to 9, comprising the steps of: and (3) sequentially adding a metal compound, a mineral and peroxide into the continuously stirred water, and fully stirring until a uniform solution is formed, thus obtaining the water-soluble organic fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224271.4A CN110772988A (en) | 2019-12-04 | 2019-12-04 | Photocatalyst air purifying agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224271.4A CN110772988A (en) | 2019-12-04 | 2019-12-04 | Photocatalyst air purifying agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110772988A true CN110772988A (en) | 2020-02-11 |
Family
ID=69393726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911224271.4A Withdrawn CN110772988A (en) | 2019-12-04 | 2019-12-04 | Photocatalyst air purifying agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110772988A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790015A (en) * | 2021-05-07 | 2022-07-26 | 浙江施维康生物医学材料有限公司 | Slow-release sustained-effect water purifying agent and preparation method thereof |
| CN114904588A (en) * | 2022-04-13 | 2022-08-16 | 浙江保护伞环保科技有限公司 | Photocatalyst air purifying agent and preparation method thereof |
-
2019
- 2019-12-04 CN CN201911224271.4A patent/CN110772988A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790015A (en) * | 2021-05-07 | 2022-07-26 | 浙江施维康生物医学材料有限公司 | Slow-release sustained-effect water purifying agent and preparation method thereof |
| CN114790015B (en) * | 2021-05-07 | 2023-10-20 | 浙江施维康生物医学材料有限公司 | Sustained-release and sustained-effect water purifying agent and preparation method thereof |
| CN114904588A (en) * | 2022-04-13 | 2022-08-16 | 浙江保护伞环保科技有限公司 | Photocatalyst air purifying agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Room-temperature synthesis of MIL-100 (Fe) and its adsorption performance for fluoride removal from water | |
| CN102180676B (en) | Preparation method of ceramic balls loaded with nano copper-zinc-silver | |
| Liu et al. | Mercury removal from coal combustion flue gas by modified palygorskite adsorbents | |
| EP1838435A1 (en) | Agglomerates of precipitated silica, method for their preparation and their use as filter medium in gas filtration | |
| Jiao et al. | Recyclable adsorbent of BiFeO3/Carbon for purifying industrial dye wastewater via photocatalytic reproducible | |
| CN104841472A (en) | Supported room temperature air cleaning non-photocatalyst and preparation method thereof | |
| CN101480499A (en) | Air purification material and preparation method thereof | |
| Wu et al. | Adsorption of Pb (II) from aqueous solution by a poly-elemental mesoporous adsorbent | |
| Xiong et al. | Preparation functionalized graphene aerogels as air cleaner filter | |
| CN110772988A (en) | Photocatalyst air purifying agent and preparation method thereof | |
| CN109012565A (en) | A kind of method of the magnetic carbon material Adsorption heavy metal ions in wastewater of nitrating | |
| Cheng et al. | Antibacterial and regenerated characteristics of Ag-zeolite for removing bioaerosols in indoor environment | |
| JP4539868B2 (en) | Adsorbent | |
| CN110538553B (en) | Preparation method of tourmaline-based negative ion air purification functional composite filter material | |
| WO2021042599A1 (en) | Method for preparing water-purifying charcoal composite material with low loading amount of nano zero-valent iron and nano silver | |
| CN105478075A (en) | Air-purifying modified nano-composite material for aqueous system | |
| CN102941060A (en) | Manganese oxide and infusorial earth composite adsorbent for treating lead-containing wastewater and preparation method | |
| Inglezakis et al. | Efficient mercury removal from water by using modified natural zeolites and comparison to commercial adsorbents | |
| Zendehdel et al. | Synthesis and characterization of a low-cost and eco-friendly hydroxyapatite/clinoptilolite/NH2 adsorbent for simultaneous removal of Cr (VI) and F− | |
| CN114261986B (en) | Preparation method of aerogel material and application of aerogel material | |
| Kobayashi et al. | Improving effect of MnO2 addition on TiO2-photocatalytic removal of lead ion from water | |
| CN108786722B (en) | Composite adsorption material and preparation method thereof | |
| Fu et al. | Utilizing biochar to decorate nanoscale FeS for the highly effective decontamination of Se (IV) from simulated wastewater | |
| Shaw et al. | Enhanced adsorption at ZnO nanoflakes@ zeolite core shell interface: A study of changing adsorption dynamics | |
| Karki et al. | Facile synthesis of magnetic activated carbon composite for arsenic adsorption |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 310000 Room 608, floor 6, building 4, Haizhi center, 2301 yuhangtang Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang shiweikang Technology Group Co., Ltd Applicant after: Zhejiang shiweikang biomedical materials Co., Ltd Address before: 310000 Room 608, floor 6, building 4, Haizhi center, 2301 yuhangtang Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG SHIWEIKANG TECHNOLOGY Co.,Ltd. Applicant before: Zhejiang shiweikang biomedical materials Co., Ltd |
|
| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200211 |
|
| WW01 | Invention patent application withdrawn after publication |