CN105664928B - A kind of preparation method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air - Google Patents
A kind of preparation method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air Download PDFInfo
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- CN105664928B CN105664928B CN201610160671.3A CN201610160671A CN105664928B CN 105664928 B CN105664928 B CN 105664928B CN 201610160671 A CN201610160671 A CN 201610160671A CN 105664928 B CN105664928 B CN 105664928B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- 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 present invention relates to the preparation method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of a kind of room temperature degraded formaldehyde in air, it comprises the following steps: step 1: a certain amount of drying levigate pomelo shell are added in deionized water according to the ratio that mass ratio is 10%；It is subsequently adding the platinum acid chloride solution that concentration is 10% so that metal platinum is 0.3% to 1.2% with the mass ratio of pomelo shell；Last magnetic agitation 2h；Step 2: it is to dry 12 hours in 70 DEG C of environment that the suspension that described step 1 obtains is placed on temperature, is evaporated solution；Step 3: the powder described step 2 obtained is placed in a nitrogen atmosphere, and being placed in temperature is roasting 2h in 450 DEG C to 600 DEG C environment.
Description
Technical field
The preparation method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of a kind of room temperature degraded formaldehyde in air, belongs to environment
Pollutant purification, environmental conservation and catalyst new material technology field.
Background technology
Formaldehyde is a kind of common indoor air pollutants, and it has the biggest harm to health of people.Along with the modern times are raw
Flat the improving constantly of running water, people increasingly pursue house decoration.But, sheet material that fitting-out work uses in a large number, coating or viscous
Knot agent, it is possible at the substantial amounts of formaldehyde gas of indoor release, thus threaten people healthy.The most effectively remove Interior Space
Formaldehyde in gas, the most always attention.Supported nano-gold belongs to the catalyst of platinum, because Pt therein combines synergistic carriers energy
Oxygen molecule in enough effective activation air, and then thoroughly oxidize the formaldehyde into as carbon dioxide and water.Such as, Pt is loaded to activity
On carbon powder or titanium dioxide nanoparticle, all can oxidize the formaldehyde into well as carbon dioxide and water.But, common
The preparation of the catalyst of the room temperature degraded formaldehyde in air of supporting Pt generally requires and first prepares activated carbon or TiO 2 carrying
Body, loads on these carriers by reducing process by Pt the most again, after drying or calcination process obtain required for catalysis
Agent.It is extremely complex, relatively costly that these are catalyzed often preparation technology.Therefore, relatively simple preparation room temperature drop solution air is found
The catalyst method of the Supported Pt Nanoparticles of middle formaldehyde, the most necessary and have important practical be worth.
Based on considerations above, the present invention is wide with source, usually used as the pomelo shell of garbage as primary raw material, have studied one
The method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of the preparation room temperature drop solution formaldehyde in air planted, it is achieved that prepared by activated carbon
Reduction with platinum completes with load one step.It has that preparation technology is simple, raw material sources wide, low cost, can utilize garbage,
And obtain the advantages such as catalyst room temperature oxidation Decomposition formaldehyde performance is good.
Summary of the invention
The technical problem to be solved is the Supported Pt Nanoparticles for the most above-mentioned existing room temperature degraded formaldehyde in air
Catalyst preparation technology exist deficiency and provide the Supported Pt Nanoparticles of a kind of preparation room temperature drop solution formaldehyde in air pomelo shell activity
The method of Pd/carbon catalyst, it utilizes discarded pomelo shell to be raw material, has that preparation technology is simple, raw material sources wide, low cost, and
Obtain the advantages such as catalyst oxidation Decomposition formaldehyde performance is good.
The technical scheme is that the Supported Pt Nanoparticles of a kind of room temperature degraded formaldehyde in air
The preparation method of pomelo shell activated-carbon catalyst, other comprises the following steps:
Step 1: a certain amount of drying levigate pomelo shell are added in deionized water according to the ratio that mass ratio is 10%；
It is subsequently adding the platinum acid chloride solution that concentration is 10% so that metal platinum is 0.3% to 1.2% with the mass ratio of pomelo shell；Finally
Magnetic agitation 2h；
Step 2: the suspension that described step 1 obtains is placed in temperature is 70 DEG C of environment drying 12 hours, is evaporated molten
Liquid；
Step 3: the powder described step 2 obtained is placed in a nitrogen atmosphere, and being placed in temperature is 450 DEG C to 600 DEG C
Roasting 2h in environment.
Preferably, in described step 1, metal platinum and pomelo shell mass ratio are 1.0%.
Preferably, in described step 3, ambient temperature is 550 DEG C.
Preferably, pomelo shell described in described step 1 is levigate after drying 12 hours in 70 DEG C of environment.
The invention has the beneficial effects as follows compared with prior art, the invention has the beneficial effects as follows:
1) reduction achieving activated carbon preparation and platinum completes with load one step.
2) utilizing discarded pomelo shell is raw material, has that preparation technology is simple, raw material sources wide, low cost and other advantages.
3) advantages such as catalyst room temperature oxidation Decomposition formaldehyde performance is good are obtained.For this area add one prepare simply,
Low cost, the catalysis material of highly active Oxidation at room temperature decomposing formaldehyde.
Accompanying drawing explanation
Pt chemistry shape in the catalyst that the embodiment 3 that accompanying drawing 1 is measured by utilizing x-ray photoelectron spectroscopy is obtained
State.
The catalyst that accompanying drawing 2 is obtained by embodiment 3 is in the effect of room temperature degraded formaldehyde in air.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
Non-for limiting the scope of the present invention.
The present invention announces a kind of room temperature degradation of formaldehyde experiment, the pomelo shell activated carbon catalysis of the Supported Pt Nanoparticles prepared by the present invention
The catalysis activity of agent is to be estimated by the formaldehyde in room temperature catalytic degradation air.Experimentation is as follows: will be containing made
The sealing culture dish of standby catalyst 0.15g, being placed in volume is in 600mL closed reactor, is then injected into the first of about 0.3 μ L
Aldehyde, after reaching balance by instrument detection concentration of formaldehyde, opens the lid of culture dish, carries out room temperature formaldehyde catalytic degradation reaction,
On-line checking concentration of formaldehyde and the change of gas concentration lwevel simultaneously, according to the difference before and after concentration of formaldehyde catalytic degradation, calculates
Degradation Formaldehyde rate.
The present invention announces the preparation method of several pomelo shell activated-carbon catalyst, referring specifically to below embodiment:
Embodiment 1:
The preparation method of pomelo shell activated-carbon catalyst a kind of of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air, it include with
Lower step:
1) weigh 10g to dry and levigate pomelo shell powder, add in 100mL deionized water, then according to metal platinum and Fructus Citri grandis
Sub-shell mass ratio be 0.3% ratio add concentration be the platinum acid chloride solution of 10%, magnetic agitation 2h；
2) suspension obtained is dried 12 hours in 70 DEG C, be evaporated solution；
3) acquisition powder is in a nitrogen atmosphere, in 550 DEG C of roasting 2h, i.e. obtains the Fructus Citri grandis of the Supported Pt Nanoparticles of room temperature degradation of formaldehyde
Sub-shell activated-carbon catalyst.
Take the pomelo shell activated-carbon catalyst 0.15g of Supported Pt Nanoparticles synthesized by this example, carry out room by approach described above
Temperature degradation of formaldehyde experiment, after 400 minutes, the degradation rate of formaldehyde is about 53%.
Embodiment 2:
The preparation method of pomelo shell activated-carbon catalyst a kind of of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air, it include with
Lower step:
1) weigh 10g to dry and levigate pomelo shell powder, add in 100mL deionized water, then according to metal platinum and Fructus Citri grandis
Sub-shell mass ratio be 0.7% ratio add concentration be the platinum acid chloride solution of 10%, magnetic agitation 2h；
2) suspension obtained is dried 12 hours in 70 DEG C, be evaporated solution；
3) acquisition powder is in a nitrogen atmosphere, in 550 DEG C of roasting 2h, i.e. obtains the Fructus Citri grandis of the Supported Pt Nanoparticles of room temperature degradation of formaldehyde
Sub-shell activated-carbon catalyst.
Take the pomelo shell activated-carbon catalyst 0.15g of Supported Pt Nanoparticles synthesized by this example, carry out room by approach described above
Temperature degradation of formaldehyde experiment, after 400 minutes, the degradation rate of formaldehyde is about 60%.
Embodiment 3:
The preparation method of pomelo shell activated-carbon catalyst a kind of of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air, it include with
Lower step:
1) weigh 10g to dry and levigate pomelo shell powder, add in 100mL deionized water, then according to metal platinum and Fructus Citri grandis
Sub-shell mass ratio be 1.0% ratio add concentration be the platinum acid chloride solution of 10%, magnetic agitation 2h；
2) suspension obtained is dried 12 hours in 70 DEG C, be evaporated solution；
3) acquisition powder is in a nitrogen atmosphere, in 550 DEG C of roasting 2h, i.e. obtains the Fructus Citri grandis of the Supported Pt Nanoparticles of room temperature degradation of formaldehyde
Sub-shell activated-carbon catalyst.Accompanying drawing 1 proves that Pt therein is 0 valency Pt metal.
Take the pomelo shell activated-carbon catalyst 0.15g of Supported Pt Nanoparticles synthesized by this example, carry out room by approach described above
Temperature degradation of formaldehyde experiment, after 400 minutes, the degradation rate of formaldehyde is about 90%.Accompanying drawing 2 is the degradation curve in time of formaldehyde.
Illustrate to add the catalyst prepared by the platinum acid chloride solution that concentration is 10% at ambient temperature according to the ratio of 1.0%, have
The activity of best catalytic degradation formaldehyde.
Embodiment 4:
The preparation method of pomelo shell activated-carbon catalyst a kind of of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air, it include with
Lower step:
1) weigh 10g to dry and levigate pomelo shell powder, add in 100mL deionized water, then according to metal platinum and Fructus Citri grandis
Sub-shell mass ratio be 1.2% ratio add concentration be the platinum acid chloride solution of 10%, magnetic agitation 2h；
2) suspension obtained is dried 12 hours in 70 DEG C, be evaporated solution；
3) acquisition powder is in a nitrogen atmosphere, in 550 DEG C of roasting 2h, i.e. obtains the Fructus Citri grandis of the Supported Pt Nanoparticles of room temperature degradation of formaldehyde
Sub-shell activated-carbon catalyst.
Take the pomelo shell activated-carbon catalyst 0.15g of Supported Pt Nanoparticles synthesized by this example, carry out room by approach described above
Temperature degradation of formaldehyde experiment, after 400 minutes, the degradation rate of formaldehyde is about 36%.
Embodiment 5-1:
The preparation method of pomelo shell activated-carbon catalyst a kind of of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air, it include with
Lower step:
1) weigh 10g to dry and levigate pomelo shell powder, add in 100mL deionized water, then according to metal platinum and Fructus Citri grandis
Sub-shell mass ratio be 1.0% ratio add concentration be the platinum acid chloride solution of 10%, magnetic agitation 2h；
2) suspension obtained is dried 12 hours in 70 DEG C, be evaporated solution；
3) acquisition powder is in a nitrogen atmosphere, in 450 DEG C of roasting 2h, i.e. obtains the Fructus Citri grandis of the Supported Pt Nanoparticles of room temperature degradation of formaldehyde
Sub-shell activated-carbon catalyst.
Take the pomelo shell activated-carbon catalyst 0.15g of Supported Pt Nanoparticles synthesized by this example, carry out room by approach described above
Temperature degradation of formaldehyde experiment, after 400 minutes, the degradation rate of formaldehyde is about 47%.
Embodiment 5-2:
The preparation method of pomelo shell activated-carbon catalyst a kind of of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air, it include with
Lower step:
1) weigh 10g to dry and levigate pomelo shell powder, add in 100mL deionized water, then according to metal platinum and Fructus Citri grandis
Sub-shell mass ratio be 1.0% ratio add concentration be the platinum acid chloride solution of 10%, magnetic agitation 2h；
2) suspension obtained is dried 12 hours in 70 DEG C, be evaporated solution；
3) acquisition powder is in a nitrogen atmosphere, in 600 DEG C of roasting 2h, i.e. obtains the Fructus Citri grandis of the Supported Pt Nanoparticles of room temperature degradation of formaldehyde
Sub-shell activated-carbon catalyst.
Take the pomelo shell activated-carbon catalyst 0.15g of Supported Pt Nanoparticles synthesized by this example, carry out room by approach described above
Temperature degradation of formaldehyde experiment, after 400 minutes, the degradation rate of formaldehyde is about 70%.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (4)
1. a preparation method for the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air, its feature exists
In, it comprises the following steps:
Step 1: a certain amount of drying levigate pomelo shell are added in deionized water according to the ratio that mass ratio is 10%；Then
Adding concentration is the platinum acid chloride solution of 10% so that metal platinum is 0.3% to 1.2% with the mass ratio of pomelo shell；Last magnetic force
Stirring 2h；
Step 2: the suspension that described step 1 obtains is placed in temperature is 70 DEG C of environment drying 12 hours, is evaporated solution；
Step 3: the powder described step 2 obtained is placed in a nitrogen atmosphere, and being placed in temperature is 450 DEG C to 600 DEG C environment
Middle roasting 2h.
A kind of system of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air
Preparation Method, it is characterised in that in described step 1, metal platinum and pomelo shell mass ratio are 1.0%.
The pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of a kind of room temperature the most according to claim 1 or claim 2 degraded formaldehyde in air
Preparation method, it is characterised in that in described step 3, the ambient temperature of roasting is 550 DEG C.
A kind of system of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air
Preparation Method, it is characterised in that pomelo shell described in described step 1 is levigate after drying 12 hours in 70 DEG C of environment.
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| CN201610160671.3A CN105664928B (en) | 2016-03-21 | 2016-03-21 | A kind of preparation method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air |
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| CN201610160671.3A CN105664928B (en) | 2016-03-21 | 2016-03-21 | A kind of preparation method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106185927B (en) * | 2016-07-15 | 2018-09-14 | 宋玉琴 | The preparation method of wood activated charcoal containing cerium |
| CN106185925B (en) * | 2016-07-15 | 2018-09-14 | 宋玉琴 | The preparation method of cocoanut active charcoal containing rare earth |
| CN106219544B (en) * | 2016-07-15 | 2018-09-28 | 宋玉琴 | The preparation method of wood activated charcoal containing lanthanum |
| CN106345457A (en) * | 2016-08-23 | 2017-01-25 | 黄云鸿 | Preparation method of activated carbon catalyst for degrading formaldehyde in air at room temperature |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230283A (en) * | 1975-09-03 | 1977-03-07 | Showa Denko Kk | Catalyst for removing formaldehyde in polluted air |
| CN1377729A (en) * | 2001-04-05 | 2002-11-06 | 上海欧臣环境高科技有限责任公司 | Purifying material capable of removing organic gas in air and its preparing method |
| CN103318885A (en) * | 2013-06-28 | 2013-09-25 | 广西大学 | Method for preparing activated carbon from pomelo peels |
| CN104162425A (en) * | 2014-07-21 | 2014-11-26 | 贝谷科技股份有限公司 | Catalyst for complete catalytic oxidation of indoor low concentration formaldehyde at room temperature |
| CN105289298A (en) * | 2015-10-27 | 2016-02-03 | 展宗城 | Catalytic module capable of removing formaldehyde at room temperature and preparation method thereof |
-
2016
- 2016-03-21 CN CN201610160671.3A patent/CN105664928B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230283A (en) * | 1975-09-03 | 1977-03-07 | Showa Denko Kk | Catalyst for removing formaldehyde in polluted air |
| CN1377729A (en) * | 2001-04-05 | 2002-11-06 | 上海欧臣环境高科技有限责任公司 | Purifying material capable of removing organic gas in air and its preparing method |
| CN103318885A (en) * | 2013-06-28 | 2013-09-25 | 广西大学 | Method for preparing activated carbon from pomelo peels |
| CN104162425A (en) * | 2014-07-21 | 2014-11-26 | 贝谷科技股份有限公司 | Catalyst for complete catalytic oxidation of indoor low concentration formaldehyde at room temperature |
| CN105289298A (en) * | 2015-10-27 | 2016-02-03 | 展宗城 | Catalytic module capable of removing formaldehyde at room temperature and preparation method thereof |
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