CN108579701A - A kind of composite fibre and preparation method thereof for formaldehyde adsorption - Google Patents
A kind of composite fibre and preparation method thereof for formaldehyde adsorption Download PDFInfo
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- CN108579701A CN108579701A CN201810465712.9A CN201810465712A CN108579701A CN 108579701 A CN108579701 A CN 108579701A CN 201810465712 A CN201810465712 A CN 201810465712A CN 108579701 A CN108579701 A CN 108579701A
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- composite fibre
- graphene oxide
- formaldehyde
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- polyester fiber
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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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/262—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28023—Fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/00—Components to be removed
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- B01D2258/06—Polluted air
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Abstract
The present invention provides a kind of composite fibre and preparation method thereof for formaldehyde adsorption, and the composite fibre is prepared by a method comprising the following steps acquisition：It first takes graphene oxide suspension to be added in centrifuge tube, centrifuge tube is placed in ultrasound in Ultrasound Instrument, keeps graphene oxide suspension evenly dispersed；Chitosan solution is added later, the polyester fiber dried will be cleaned after stirring and evenly mixing in advance and immersed in above-mentioned mixed solution, sealing reaction 6h or more in 50 90 DEG C of thermostat water baths is placed into；Finally, fiber is taken out into naturally dry, and is sealed after drying, obtain chitosan functional graphene oxide/terylene composite fibre.The mass ratio of graphene oxide, chitosan, polyester fiber, water described in wherein is 1：1：3‑4：1100‑1300.Composite fibre stability of the present invention is high, and synthetic method is simple, overcomes the technological deficiency that activated carbon can release the formaldehyde adsorbed again under higher temperature conditions, can be used for the processing of formaldehyde in indoor air.
Description
Technical field
The present invention relates to room air processing sorbing material, specifically a kind of composite fibre that can be used for formaldehyde adsorption and
Preparation method.
Background technology
Formaldehyde because its is colourless and to human body caused by extraordinary strong stimulus property, become a kind of big well known Interior Space
Gas pollutant.The fitment process (such as the use of paint, adhesion material) of the exceeded typically New Buildings of indoor formaldehyde concentration,
The new Form aldehyde release for making furniture and chemical fibre product.If people are exposed to the exceeded Interior Space compression ring of concentration of formaldehyde for a long time
(Indoor Air Quality standards requirement≤0.1mg/m under border3), it not only will appear common air comprehensive class illness (such as respiratory tract
With sense organ class complication), it can also increase the illness probability of leukaemia.So in order to reduce indoor gas formaldehyde to human health and
The influence of living environment is studied its processing mode and is become as a heat subject.
According to the mechanism of action, the effective treating method of formaldehyde in indoor air includes：Physisorphtion, chemical transformation,
Biodegradable absorption process or several method are combined.Wherein, the absorption method for possessing simplicity and economy is daily life
In for the major way that purifies the air of a room.Absorption method is by physisorption by formaldehyde absorbing to material surface or interior
Portion, to achieve the effect that remove formaldehyde gas pollutant.Current most widely used sorbing material is all kinds of absorbent charcoal materials.
Such as：Absorption method and catalytic oxidation are combined, the nanofiber activated carbon mixing material produced；It will be used to fix nano-TiO2
Sheet glass replace with activated carbon, adsorption effect is relatively original more preferable；Using the activated carbon after chemical treatment, formaldehyde equilibrium concentration is
2.36×10-6mg/m3When adsorption capacity be 0.36mg/g.Numerous studies show except physical factors such as specific surface area and porositys
Outside, carbon surface attachment functional group is also an important factor for influencing material absorption property.Experiment shows the nanofiber with amino
Activated carbon is significantly improved than the absorption property for not having the fibre active carbon PARA FORMALDEHYDE PRILLS(91,95) of amino.However, activated carbon adsorption formaldehyde is not
Securely, activated carbon can release the formaldehyde adsorbed when temperature is more than 19 DEG C, cause to pollute again.Big point of some chain structures
Sub- material, such as cellulose, natural fiber, synthetic fibers PARA FORMALDEHYDE PRILLS(91,95) also have certain suction-operated, natural fiber absorption effect
Fruit is better than synthetic fibers, but high expensive.If be modified to synthetic fibers, improve PARA FORMALDEHYDE PRILLS(91,95) absorption property, then it can be with
Reduce adsorbent cost.In addition, graphene is with sp2The bi-dimensional cellular shape carbon nanomaterial of hybrid structure, graphene are special
Molecular structure determine its specific surface area (2630m with super large2·g-1), become the absorption of most possible substitution activated carbon
Material.However, graphene has chemical inertness, and it is weaker with the interaction of the gas molecule of contact, it needs to carry out work(to it
Energyization is modified, and is improved reactivity, is realized stronger absorption.
Invention content
It is an object of the invention to can release the formaldehyde adsorbed again under higher temperature conditions for activated carbon
Technological deficiency, provide a kind of composite fibre for formaldehyde adsorption, the composite fibre of gained had both had large specific surface area, has been easy
The characteristic of formaldehyde adsorption, but also with the not performance of release formaldehyde at relatively high temperatures.
A kind of composite fibre for formaldehyde adsorption provided by the invention, it is mainly first poly- in conjunction with shell by graphene oxide
Sugar, it is further compound and obtained with polyester fiber.The composite fibre of gained had both had large specific surface area, has been easy formaldehyde adsorption
Characteristic, but also with the not performance of release formaldehyde at relatively high temperatures, overcoming activated carbon can will inhale under higher temperature conditions
The technological deficiency that attached formaldehyde releases again.It is prepared by a method comprising the following steps acquisition：
It first takes graphene oxide suspension to be added in centrifuge tube, centrifuge tube is placed in ultrasound in Ultrasound Instrument, makes graphite oxide
Alkene suspension is evenly dispersed；Chitosan solution is added later, the polyester fiber dried will be cleaned after stirring and evenly mixing in advance and immersed
It states in mixed solution, places into sealing reaction 6h or more in 50-90 DEG C of thermostat water bath；Finally, fiber is taken out into naturally dry,
And be sealed after drying, obtain chitosan functional graphene oxide/terylene composite fibre.The wherein graphite oxide
Alkene, chitosan, polyester fiber, water mass ratio be 1：1：3-4：1100-1300.
Wherein：The graphene oxide, chitosan, polyester fiber, water mass ratio be preferably 1：1：3：1200.The water
Bath temperature is preferably 60 DEG C.The reaction time is preferably 8h.The ultrasonic time 30min.
The sequence of the preparation process is preferably：Graphene oxide is first combined with chitosan, then is combined with polyester fiber.
Compared with prior art the advantage of the invention is that：
Using polyester fiber and chitosan functional graphene oxide in conjunction with and constitute composite fibre, to formaldehyde in air
Removal rate is high (can reach 89%), and (50 DEG C) still can stablize absorption under the high temperature conditions, it is not easy to what release had been adsorbed
Formaldehyde.The material can adjust the parameters such as tight ness rating, the porosity of fiber as needed, can directly be used as the strainer of air purifier
Material.In composite fibre, graphene oxide (GO) is the analog of graphene, in addition to the specific surface area with super large
(2630m2·g-1) outside, also there are many oxygen-containing functional groups (such as epoxy, hydroxyl or carboxyl), it is higher that these functional groups assign GO
Chemical reactivity is the sorbing material of most possible substitution activated carbon.Chitosan is the first order derivatives of chitin, in molecule
With a large amount of amino, being easy to react with aldehyde radical or carbonyl generates more stable schiff bases.Therefore, chitosan is to improve first
An important factor for aldehyde absorption property, at the same chitosan also possess prepare it is simple, cheap, biodegradable and without considering two
The advantages that secondary pollution.Polyester fiber (also referred to as polyester fiber) is a kind of synthetic fibers, and functionalization graphene is anchored at fiber table
Face provides support for functionalization graphene, and forms a large amount of gap structures, so as to gas wherein by and exchange.Compound fibre
Dimension material is conducive to the desorption processing after absorption, can achieve the purpose that recycling.
Description of the drawings
Under the conditions of 50 DEG C of Fig. 1, confined space is put into formaldehyde after chitosan functional graphene oxide/terylene composite fibre
Concentration changes with time figure
Specific implementation mode
Embodiment 1
The preparation of chitosan functional graphene oxide/terylene composite fibre：
It takes the graphene oxide suspension 30mL of prepared 1mg/mL to be added in 50mL centrifuge tubes, centrifuge tube is placed in super
Ultrasound 30min, keeps graphene oxide suspension evenly dispersed in sound instrument；It is molten that the chitosan that 6mL mass concentrations are 0.5% is added
Liquid will be cleaned the 100mg polyester fibers dried and immersed in above-mentioned mixed solution, then test tube is put into 60 DEG C in advance after stirring and evenly mixing
Sealing reaction 8h in thermostat water bath；Finally, fiber is taken out into naturally dry, is sealed after being placed in drier drying 48h,
Obtain chitosan functional graphene oxide/terylene composite fibre.
Embodiment 2
The adsorption experiment of chitosan functional graphene oxide/terylene composite fibre PARA FORMALDEHYDE PRILLS(91,95)：
Chitosan functional graphene oxide/terylene composite fibre 100mg is weighed, material is placed on one with nitrogen treatment
Determine in the glass closed container of volume (closed container uses drier to remove vapor in advance), and 5 μ are added dropwise into closed container
L0.03% formalins provide formaldehyde volatile source, are with initial concentration of formaldehyde in methylene oxide detecting instrument record closed container
1.770mg/m3, closed container is placed in 50 DEG C of waters bath with thermostatic control, every 2h record concentration of formaldehyde values.Concentration of formaldehyde changes over time
Situation is as shown in Fig. 1.The absorptivity that the composite fibre PARA FORMALDEHYDE PRILLS(91,95) is calculated according to concentration of formaldehyde decreasing value is 89%.
Claims (5)
1. a kind of composite fibre for formaldehyde adsorption is prepared by a method comprising the following steps acquisition：Take graphene oxide
Suspension is added in centrifuge tube, and centrifuge tube is placed in ultrasound in Ultrasound Instrument, keeps graphene oxide suspension evenly dispersed；Later plus
Enter chitosan solution, the polyester fiber dried will be cleaned after stirring and evenly mixing in advance and immersed in above-mentioned mixed solution, 50-90 is placed into
Sealing reaction 6h or more in DEG C thermostat water bath；Finally, fiber is taken out into naturally dry, and is sealed after drying, obtain shell
Glycan functional graphene oxide/terylene composite fibre.The wherein matter of the graphene oxide, chitosan, polyester fiber, water
Amount is than being 1：1：3-4：1100-1300.
2. a kind of composite fibre for formaldehyde adsorption as described in claim 1, which is characterized in that the graphene oxide,
Chitosan, polyester fiber, water mass ratio be 1：1：3：1200.
3. a kind of composite fibre for formaldehyde adsorption as described in claim 1, which is characterized in that the bath temperature is 60
℃。
4. a kind of composite fibre for formaldehyde adsorption as described in claim 1, which is characterized in that the reaction time is 8
Hour.
5. the composite fibre as described in claim 1-4 is any is used for the absorption of formaldehyde in indoor air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465712.9A CN108579701A (en) | 2018-05-16 | 2018-05-16 | A kind of composite fibre and preparation method thereof for formaldehyde adsorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465712.9A CN108579701A (en) | 2018-05-16 | 2018-05-16 | A kind of composite fibre and preparation method thereof for formaldehyde adsorption |
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| Publication Number | Publication Date |
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| CN108579701A true CN108579701A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810465712.9A Pending CN108579701A (en) | 2018-05-16 | 2018-05-16 | A kind of composite fibre and preparation method thereof for formaldehyde adsorption |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440463A (en) * | 2018-10-08 | 2019-03-08 | 中原工学院 | A kind of method for sorting of formaldehyde absorbing fiber type |
| CN117046451A (en) * | 2023-07-07 | 2023-11-14 | 沈阳化工大学 | Preparation method of biochar and chitosan composite particles for absorbing air peculiar smell such as formaldehyde |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751944A (en) * | 2014-01-26 | 2014-04-30 | 河北工程大学 | Formaldehyde scavenger and preparation method thereof |
| CN105297172A (en) * | 2015-11-30 | 2016-02-03 | 天津纺织工程研究院有限公司 | Preparation method of polyester fibers capable of efficiently purifying formaldehyde |
| CN106310978A (en) * | 2016-10-17 | 2017-01-11 | 江苏新风环保科技有限公司 | Compound air filter membrane based on chitosan and graphene oxide and preparation method of compound air filter membrane |
| CN106436283A (en) * | 2015-08-13 | 2017-02-22 | 吴玉松 | Functional chitosan fiber-based material and preparation method thereof |
-
2018
- 2018-05-16 CN CN201810465712.9A patent/CN108579701A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751944A (en) * | 2014-01-26 | 2014-04-30 | 河北工程大学 | Formaldehyde scavenger and preparation method thereof |
| CN106436283A (en) * | 2015-08-13 | 2017-02-22 | 吴玉松 | Functional chitosan fiber-based material and preparation method thereof |
| CN105297172A (en) * | 2015-11-30 | 2016-02-03 | 天津纺织工程研究院有限公司 | Preparation method of polyester fibers capable of efficiently purifying formaldehyde |
| CN106310978A (en) * | 2016-10-17 | 2017-01-11 | 江苏新风环保科技有限公司 | Compound air filter membrane based on chitosan and graphene oxide and preparation method of compound air filter membrane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440463A (en) * | 2018-10-08 | 2019-03-08 | 中原工学院 | A kind of method for sorting of formaldehyde absorbing fiber type |
| CN109440463B (en) * | 2018-10-08 | 2021-03-16 | 中原工学院 | Formaldehyde adsorption type fiber finishing method |
| CN117046451A (en) * | 2023-07-07 | 2023-11-14 | 沈阳化工大学 | Preparation method of biochar and chitosan composite particles for absorbing air peculiar smell such as formaldehyde |
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