CN109529617A - A kind of photocatalyst is except formaldehyde agent and preparation method thereof - Google Patents
A kind of photocatalyst is except formaldehyde agent and preparation method thereof Download PDFInfo
- Publication number
- CN109529617A CN109529617A CN201910040156.5A CN201910040156A CN109529617A CN 109529617 A CN109529617 A CN 109529617A CN 201910040156 A CN201910040156 A CN 201910040156A CN 109529617 A CN109529617 A CN 109529617A
- Authority
- CN
- China
- Prior art keywords
- nano
- photocatalyst
- agent
- titanium dioxide
- liquid
- 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.)
- Pending
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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
Abstract
The invention belongs to remove aldehyde technical field, a kind of photocatalyst is disclosed except formaldehyde agent, by weight, the photocatalyst removes the composition of formaldehyde agent are as follows: 5-10 parts of nano-titanium dioxide, 0.1-2 parts of chlorophyll extracting solution, 3-10 parts of dispersing agent, 80-90 parts of deionized water.The invention also discloses the preparation methods that a kind of photocatalyst removes formaldehyde agent, photocatalyst of the invention integrates photosynthetic suction-operated and the photocatalytic effect of nano-titanium dioxide of chlorophyll except formaldehyde agent, so that the photocatalyst is applied to air purification field except formaldehyde agent, not only there is single suction-operated, it can also effectively degradation of formaldehyde.
Description
Technical field
The invention belongs to remove aldehyde technical field, and in particular to a kind of photocatalyst is except formaldehyde agent and preparation method thereof.
Background technique
Photocatalyst is prepared except the product of formaldehyde is mainly using nano-titanium dioxide as primary raw material on the market at present
Milky white liquid.General photocatalyst only just has catalytic action except formaldehyde under ultraviolet light, for this purpose, it is proposed that a kind of light touches
Matchmaker makes the photocatalyst except formaldehyde agent can play catalytic action in the presence of visible light except formaldehyde agent and preparation method thereof.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide a kind of photocatalysts except formaldehyde agent and
Preparation method.
The technical scheme adopted by the invention is as follows:
A kind of photocatalyst removes formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows: nano-titanium dioxide
5-10 parts, 0.1-2 parts of chlorophyll extracting solution, 3-10 parts of dispersing agent, 80-90 parts of deionized water.
Further, the chlorophyll extracting solution preparation process the following steps are included:
(1) stem or leaf of green plants are taken, cleans, dries in the shade, is crushed；The polyoxyethylene Dan Shuxin that concentration is 1-8% is added
Base phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant；
(2) NaCl is added into supernatant, pours into separatory funnel after mixing evenly, stratification takes upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) dehydrated alcohol is added in concentrate, vibrates, stops that dehydrated alcohol is added when white precipitate amount of precipitation is unchanged,
Filtering, takes filtrate.
Further, the dispersing agent is alkyl sulfate.
Further, the dispersing agent is fatty alcohol polyoxyethylene ether.
Further, the partial size of the nano-titanium dioxide is 1-10nm.
The invention also discloses the preparation methods that a kind of photocatalyst removes formaldehyde agent, comprising the following steps:
Step (1): dispersing agent is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright.
Further, nano-titanium dioxide replaces with nano zine oxide or nano iron oxide.
The invention has the benefit that
Photocatalyst of the invention is except the photosynthetic suction-operated of formaldehyde agent collection chlorophyll and the photocatalysis effect of nano-titanium dioxide
Yu Yiti is answered, so that the photocatalyst is applied to air purification field except formaldehyde agent, not only there is single suction-operated, may be used also
With pollutants such as effectively degradation of formaldehyde, benzene, ammonia, radon and TVOC, and pathogenic microorganism can be effectively killed, photocatalyst of the invention
Except formaldehyde agent can in the presence of visible light from catalytic action, have eliminate formaldehyde, purification air and sterilizing etc. make
With, it is nontoxic to the human body, environmental pollution will not be caused, quick-acting and persistence is good, simple production process, low manufacture cost.
Specific embodiment
Further explaination is done to the present invention combined with specific embodiments below.
Embodiment 1:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
5 parts of nano-titanium dioxide, 0.2 part of chlorophyll extracting solution, 3 parts of alkyl sulfate, 80 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): alkyl sulfate is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 2:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
6 parts of nano-titanium dioxide, 0.3 part of chlorophyll extracting solution, 4 parts of alkyl sulfate, 80 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): alkyl sulfate is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 3:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
7 parts of nano-titanium dioxide, 0.5 part of chlorophyll extracting solution, 5 parts of alkyl sulfate, 80 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): alkyl sulfate is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 4:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
8 parts of nano-titanium dioxide, 0.8 part of chlorophyll extracting solution, 6 parts of alkyl sulfate, 85 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): alkyl sulfate is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 5:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
9 parts of nano-titanium dioxide, 1 part of chlorophyll extracting solution, 8 parts of alkyl sulfate, 85 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): alkyl sulfate is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 6:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
10 parts of nano-titanium dioxide, 2 parts of chlorophyll extracting solution, 10 parts of fatty alcohol polyoxyethylene ether, 90 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): fatty alcohol polyoxyethylene ether is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 7:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
8 parts of nano-titanium dioxide, 1.8 parts of chlorophyll extracting solution, 9 parts of fatty alcohol polyoxyethylene ether, 85 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): fatty alcohol polyoxyethylene ether is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 8:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
6 parts of nano-titanium dioxide, 1.5 parts of chlorophyll extracting solution, 7 parts of fatty alcohol polyoxyethylene ether, 85 parts of deionized water.
In the present embodiment, it is the nano-titanium dioxide of 1-10nm that nano-titanium dioxide, which preferably selects partial size, makes nano-silica
Change titanium and plays stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): fatty alcohol polyoxyethylene ether is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to saturating
It is bright, high speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano-titanium dioxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition
The effect of the harmful substances such as aldehyde can reach absorption visible light using the chlorophyll in chlorophyll extracting solution and sunlight progress is photosynthetic
Effect, in conjunction with the catalytic decomposition of nano-titanium dioxide, can more effectively harmful substances such as decomposing formaldehyde, photocatalyst of the invention
Except formaldehyde agent preferably uses on daytime, nano-titanium dioxide plays stronger catalyticing decomposition action, just concentration of formaldehyde can be made to carry out
It reduces.
Embodiment 9:
The present embodiment provides a kind of photocatalysts to remove formaldehyde agent, and by weight, the photocatalyst removes the composition of formaldehyde agent are as follows:
5 parts of nano zine oxide, 1.2 parts of chlorophyll extracting solution, 4 parts of fatty alcohol polyoxyethylene ether, 80 parts of deionized water.
In the present embodiment, it is the nano zine oxide of 1-10nm that nano zine oxide, which preferably selects partial size, plays nano zine oxide
To stronger catalyticing decomposition action.
In the present embodiment, the preparation process of chlorophyll extracting solution the following steps are included:
(1) stem or leaf for taking green plants, clean up, dry in the shade, and crush；The polyoxyethylene list that concentration is 1-8% is added
T-octyl phenyl ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant
Liquid；
(2) NaCl is added into supernatant, NaCl additional amount is the 15% of supernatant weight, stirs evenly, is poured into
Separatory funnel, stratification remove lower layer's water phase, take upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) it is slowly added to dehydrated alcohol in concentrate, vibrates, until stopping being added when white precipitate amount of precipitation is without significant change
Dehydrated alcohol, filtering, takes filtrate.
Above-mentioned photocatalyst except formaldehyde agent preparation method the following steps are included:
Step (1): fatty alcohol polyoxyethylene ether is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano zine oxide is put into B liquid, and the speed with revolving speed for 1500-3000r/min is stirred to transparent,
High speed disperser can be selected and carry out high-speed stirred, make photocatalyst obtained except formaldehyde agent high-speed stirred is to transparent.
In the present embodiment, nano zine oxide has large specific surface area, size tunable, and good dispersion plays catalytic decomposition aldehyde
Etc. harmful substances effect, can be reached using the chlorophyll in chlorophyll extracting solution and absorb visible light and sunlight and carry out photosynthetic work
With more effectively the harmful substances such as decomposing formaldehyde, photocatalyst of the invention first can be removed in conjunction with the catalytic decomposition of nano zine oxide
Aldehyde agent preferably uses on daytime, and nano zine oxide plays stronger catalyticing decomposition action, can just concentration of formaldehyde be made to be reduced.
Photocatalyst of the invention except formaldehyde agent use process is as follows: by photocatalyst except formaldehyde agent spray containing the closed of formaldehyde
In room, daytime is used, and using photocatalyst except the concentration of formaldehyde for detecting the room before and after formaldehyde agent, finds the formaldehyde of closed room
Concentration decline 10%-20%, it is seen then that the photocatalyst except formaldehyde agent can PARA FORMALDEHYDE PRILLS(91,95) absorbed and decomposed Duplex treatment, in turn
Guarantee the effect of formaldehyde removal.
In short, photocatalyst of the invention is urged except the photosynthetic suction-operated of formaldehyde agent collection chlorophyll and the light of nano-titanium dioxide
Change effect in one, so that the photocatalyst is applied to air purification field except formaldehyde agent, not only there is single suction-operated,
Can also effectively pollutants such as degradation of formaldehyde, benzene, ammonia, radon, TVOC, and can effectively kill pathogenic microorganism.
Photocatalyst of the invention except formaldehyde agent has the effects that eliminate formaldehyde, purifies air and sterilizing, to human body without
Poison will not cause environmental pollution, and quick-acting and persistence is good, simple production process, low manufacture cost.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific embodiment should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (7)
1. a kind of photocatalyst removes formaldehyde agent, it is characterised in that: by weight, the photocatalyst removes the composition of formaldehyde agent are as follows: receives
5-10 parts of titanium dioxide, 0.1-2 parts of chlorophyll extracting solution, 3-10 parts of dispersing agent, 80-90 parts of deionized water of rice.
2. photocatalyst according to claim 1 removes formaldehyde agent, it is characterised in that: the preparation process of the chlorophyll extracting solution
The following steps are included:
(1) stem or leaf of green plants are taken, cleans, dries in the shade, is crushed；The polyoxyethylene list t-octyl benzene that concentration is 1-8% is added
Base ether aqueous solution, solid-liquid ratio 1:10 are stirred and evenly mixed, ultrasound 10-20min under room temperature；Centrifuge separation, takes supernatant；
(2) NaCl is added into supernatant, pours into separatory funnel after mixing evenly, stratification takes upper layer；
(3) 95% ethyl alcohol of 2 times of volumes is added in upper layer, with ultrafiltration membrance filter, filtrate is concentrated into thick；
(4) dehydrated alcohol is added in concentrate, vibrates, stops that dehydrated alcohol is added when white precipitate amount of precipitation is unchanged, filters,
Take filtrate.
3. photocatalyst according to claim 2 removes formaldehyde agent, it is characterised in that: the dispersing agent is alkyl sulfate.
4. photocatalyst according to claim 2 removes formaldehyde agent, it is characterised in that: the dispersing agent is aliphatic alcohol polyethenoxy
Ether.
5. photocatalyst according to claim 3 or 4 removes formaldehyde agent, it is characterised in that: the partial size of the nano-titanium dioxide
For 1-10nm.
6. the preparation method that photocatalyst according to claim 5 removes formaldehyde agent, it is characterised in that: the following steps are included:
Step (1): dispersing agent is put into deionized water, stirring obtains A liquid to transparent.
Step (2): chlorophyll extracting solution is put into A liquid, stirring obtains B liquid to transparent.
Step (3): nano-titanium dioxide is put into B liquid, the speed with revolving speed for 1500-3000r/min is stirred to transparent.
7. the preparation method that photocatalyst according to claim 6 removes formaldehyde agent, it is characterised in that: nano-titanium dioxide replacement
For nano zine oxide or nano iron oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040156.5A CN109529617A (en) | 2019-01-16 | 2019-01-16 | A kind of photocatalyst is except formaldehyde agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040156.5A CN109529617A (en) | 2019-01-16 | 2019-01-16 | A kind of photocatalyst is except formaldehyde agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109529617A true CN109529617A (en) | 2019-03-29 |
Family
ID=65835370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910040156.5A Pending CN109529617A (en) | 2019-01-16 | 2019-01-16 | A kind of photocatalyst is except formaldehyde agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109529617A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111053089A (en) * | 2019-12-23 | 2020-04-24 | 中星(广州)纳米材料有限公司 | Nano sterilizing and formaldehyde removing composition and preparation method thereof |
| CN112121633A (en) * | 2020-09-25 | 2020-12-25 | 山东德慧环境科技有限公司 | Peculiar smell scavenger and preparation method thereof |
| CN112473364A (en) * | 2020-11-06 | 2021-03-12 | 临沂京瑞新材料科技有限公司 | Photocatalyst formaldehyde removing agent |
| CN112588325A (en) * | 2020-10-23 | 2021-04-02 | 华南农业大学 | Titanium dioxide-chlorophyll compound and preparation method and application thereof |
| CN112675700A (en) * | 2020-12-29 | 2021-04-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of weak-light photocatalyst composite formaldehyde-removing spray, product and application thereof |
| CN115253638A (en) * | 2022-07-19 | 2022-11-01 | 金久湘遇环保新材料(重庆)有限公司 | Nanometer aldehyde-removing anion liquid for purifying air and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923091A (en) * | 2014-04-22 | 2014-07-16 | 山西大学 | Method for extracting chlorophyll |
| CN104117085A (en) * | 2014-08-04 | 2014-10-29 | 武汉市意朗一品生物环保科技有限公司 | Air freshener and preparation method thereof |
| US20180279623A1 (en) * | 2017-04-03 | 2018-10-04 | Imam Abdulrahman Bin Faisal University | GREEN PLANTS TREATED WITH TiO2 TO REMOVE CONTAMINANTS IN AIR |
-
2019
- 2019-01-16 CN CN201910040156.5A patent/CN109529617A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923091A (en) * | 2014-04-22 | 2014-07-16 | 山西大学 | Method for extracting chlorophyll |
| CN104117085A (en) * | 2014-08-04 | 2014-10-29 | 武汉市意朗一品生物环保科技有限公司 | Air freshener and preparation method thereof |
| US20180279623A1 (en) * | 2017-04-03 | 2018-10-04 | Imam Abdulrahman Bin Faisal University | GREEN PLANTS TREATED WITH TiO2 TO REMOVE CONTAMINANTS IN AIR |
Non-Patent Citations (3)
| Title |
|---|
| 王巍 主编: "《环保"新"主张》", 31 December 2010 * |
| 董国君 等: "《表面活性剂化学》", 31 August 2009 * |
| 蒋民华: "《神奇的新材料》", 31 October 2013 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111053089A (en) * | 2019-12-23 | 2020-04-24 | 中星(广州)纳米材料有限公司 | Nano sterilizing and formaldehyde removing composition and preparation method thereof |
| CN112121633A (en) * | 2020-09-25 | 2020-12-25 | 山东德慧环境科技有限公司 | Peculiar smell scavenger and preparation method thereof |
| CN112588325A (en) * | 2020-10-23 | 2021-04-02 | 华南农业大学 | Titanium dioxide-chlorophyll compound and preparation method and application thereof |
| CN112588325B (en) * | 2020-10-23 | 2021-11-26 | 华南农业大学 | Titanium dioxide-chlorophyll compound and preparation method and application thereof |
| CN112473364A (en) * | 2020-11-06 | 2021-03-12 | 临沂京瑞新材料科技有限公司 | Photocatalyst formaldehyde removing agent |
| CN112675700A (en) * | 2020-12-29 | 2021-04-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of weak-light photocatalyst composite formaldehyde-removing spray, product and application thereof |
| CN115253638A (en) * | 2022-07-19 | 2022-11-01 | 金久湘遇环保新材料(重庆)有限公司 | Nanometer aldehyde-removing anion liquid for purifying air and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109529617A (en) | A kind of photocatalyst is except formaldehyde agent and preparation method thereof | |
| CN104922714B (en) | A kind of dual effect type fitting up deodouring agent | |
| CN108002642B (en) | A kind of viscose fiber wastewater, sludge, exhaust-gas treatment system and method | |
| CN109351165A (en) | It is a kind of indoor except formaldehyde spray | |
| CN112007426B (en) | Preparation method of high-performance mesoporous silica-chitosan composite antibacterial filter sheet | |
| CN109845765A (en) | A kind of preparation method of bracketplant leaching liquid and nano-titanium dioxide composite sterilizer disinfection hydrojet | |
| CN109331644A (en) | A kind of antimicrobial form anion air purifying preparation and preparation method | |
| CN105542594A (en) | Photocatalyst formaldehyde-buster internal wall paint and preparation method thereof | |
| CN103386247A (en) | Washing type air purification method | |
| CN108716113A (en) | A kind of deodorization garment material and preparation method thereof | |
| CN105218017A (en) | Based on diatomite ultrafine powder except formaldehyde in indoor air diatom ooze and preparation method thereof | |
| CN110368795A (en) | A kind of natural lignin's formaldehyde purifying agent and preparation method thereof | |
| CN102698734B (en) | Amorphous tantalic acid photocatalyst for decomposing benzene pollutants and preparation method for amorphous tantalic acid photocatalyst | |
| CN107722700A (en) | A kind of self-cleaning functional paint of indoor air purification and preparation method | |
| CN108479294B (en) | A kind of exhaust gas purifying method | |
| CN104353354A (en) | Method for purifying air by combining electrochemical degradation with photocatalysis technique | |
| CN107810974A (en) | A kind of efficient compound air purifying preparation | |
| CN208809764U (en) | Sludge drying exhaust treatment system | |
| CN106422150A (en) | Far infrared anion nanometer solution | |
| CN109082421A (en) | A kind of compound air purification compound biological enzyme and preparation method thereof | |
| CN110420555A (en) | A kind of nanometer deodorant and preparation method thereof | |
| CN108325500A (en) | A kind of air purifying preparation and preparation method thereof | |
| CN111718071A (en) | Methylene blue dye wastewater treatment method based on short-range photocatalysis/algae biodegradation | |
| CN111298526A (en) | Preparation method of air purifier filter element material | |
| CN104906890B (en) | A kind of aqueous air PM2.5 scavenging solutions |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190329 |