CN103894157B - The preparation method and applications of paper pulp/nano carbon composite material - Google Patents
The preparation method and applications of paper pulp/nano carbon composite material Download PDFInfo
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- CN103894157B CN103894157B CN201410113766.0A CN201410113766A CN103894157B CN 103894157 B CN103894157 B CN 103894157B CN 201410113766 A CN201410113766 A CN 201410113766A CN 103894157 B CN103894157 B CN 103894157B
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Abstract
The preparation method and applications of paper pulp/nano carbon composite material, the present invention relates to the preparation method and applications of composite.The invention solves the problems that existing composite exists that mechanical performance is the best, difficult forming, the defect of absorbability difference.Method: one, prepare cellulose；Two, cellulose is distributed in NaOH urea liquid, reaction；Three, paper pulp/nano carbon composite material is prepared.The inventive method takes full advantage of the characteristic of porous material, easily separates, have raw material be easy to get, low cost, method simply rapidly, be suitable for large-scale production.The Large ratio surface being had due to it, efficient adsorptivity, good stability and stalling characteristic, in fields such as organic contamination process, there is important application prospect.Porous paper pulp/Nano Carbon microsphere prepared in the present invention and thin film, for the reparation of the organic pollutants-contaminated environment: A research reviews such as water body, soil, air, in middle low pollution environment, the clearance of aromatic compound can reach more than 92%.
Description
Technical field
The present invention relates to the preparation method and applications of composite.
Background technology
Aromatic compound is gained the name because major part is the most savory at the beginning of finding as the common chemicals of a class, such material.
But in this kind of material, major part is all to have carcinogenesis, or the nervous system to human body, and digestive system etc. has injury.
Such as benzene, toluene, styrene etc. can cause human body distortion, canceration etc..In the productive life of modern humans, aromatic compound
Thing is nearly ubiquitous, as dyestuff (printing and dyeing etc.), Industrial " three Waste ", household chemicals, decorate, paint etc..They
It is potential mostly, but fatal.Cause the attention of countries in the world and international organization.The U.S. just has specialized agency to go through
The special survey of Shi Wunian finds: many civilian and commercial buildings, indoor air pollution degree is outdoor air pollution
2-5 times, even more than 100 times had.The one of common people's concern is also become in China's atmospheric pollution, construction material pollution etc.
Big hot issue.Therefore, the purification for aromatic compound is of great interest.Common including of administering method
Learn the sedimentation method, ion exchange, hyperfiltration, oxidation-reduction method, photocatalytic degradation method etc..Owing to these methods also exist
The longest, eurytopicity is poor, high cost, the shortcomings such as poor practicability and inefficiency.And adsorbent rule energy gram
Take disadvantage mentioned above, it has also become a kind of efficient, easy, quickly remove/purify the effective way of aromatic compound.Nanometer material
Material, compared with traditional material, has the most excellent physical/chemical properties.Particularly birth and development with nanotechnology has
The graphite mould carbon nanomaterial such as CNT and Graphene of direct correlation, due to their huge specific surface area, solely
Special and single sp2The cellular carbon skeleton structure of hybrid orbital so that it is aromatic compound is had the selection absorption of excellence
Property, stable chemical/physical characteristic, light weight and the good characteristic such as hot strength is high, conductor/semiconductor character coexists, and
Studied person's extensive concern and expectation.
In recent years, the advantage that microsphere, thin-film material easily reclaim because of it, and become a kind of and there is the novel of wide application prospect
Adsorbing material.As with low cost, prepare simple paper pulp (cellulose)/carbon nanomaterial complex microsphere, the conjunction of thin film
Become and be rarely reported in the research purifying aromatic series organic pollution.And the composite in only report is the most generally deposited
, difficult forming the best in mechanical performance, the defects such as absorbability is poor.
Summary of the invention
The invention solves the problems that existing composite exists that mechanical performance is the best, difficult forming, the defect of absorbability difference, it is provided that
The preparation method and applications of paper pulp/nano carbon composite material.
The preparation method of paper pulp/nano carbon composite material, specifically follows the steps below:
One, newspaper is more than 100 DEG C in temperature, under conditions of pressure is 90MPa～150MPa, processes and obtain fiber
Element；
Two, cellulose step one obtained is in ultrasonic agitation is distributed to NaOH-urea liquid, then controls temperature and be-12 DEG C
Stirring 5min, then heating to temperature is 25 DEG C, obtains mixed solution；
Three, by nano-carbon material ultrasonic disperse to deionized water, the mixed solution stirring 10min that step 2 obtains is added,
It is then added to HNO3The mixed liquor that the mass concentration that concentration is 2mol/L and NaCl is 10% in, then use deionization
It is washed to neutrality, obtains paper pulp/nano carbon composite material.
Paper pulp/the nano carbon composite material of above-mentioned preparation is paper pulp/nano-sized carbon microsphere.
The preparation method of paper pulp/nano carbon composite material, specifically follows the steps below:
One, newspaper is more than 100 DEG C in temperature, under conditions of pressure is 90MPa～150MPa, processes and obtain fiber
Element；
Two, cellulose step one obtained is in ultrasonic agitation is distributed to NaOH-urea liquid, then controls temperature and be-12 DEG C
Stirring 5min, then heating to temperature is 25 DEG C, obtains mixed solution；
Three, by nano-carbon material ultrasonic disperse to deionized water, the mixed solution stirring 10min that step 2 obtains is added,
Being washed with deionized water to neutrality, then sucking filtration is dried again, and obtains paper pulp/nano carbon composite material.
Paper pulp/the nano carbon composite material of above-mentioned preparation is paper pulp/nano-sized carbon thin film.
Above-mentioned paper pulp/nano carbon composite material is for the reparation of organic pollutants-contaminated environment: A research review.
The invention has the beneficial effects as follows: the material that porous (nano-sized carbon) composite that the present invention provides is reported before being different from
Material, it has big specific surface, has good stable, absorbability/efficiency height in water.The inventive method is the most sharp
By the characteristic of porous material, easily separate, have raw material be easy to get, low cost, method simply rapidly, be suitable for extensive
Produce.The Large ratio surface being had due to it, efficient adsorptivity, good stability and stalling characteristic, in organic contamination
The fields such as process have important application prospect.
Porous paper pulp/Nano Carbon microsphere prepared in the present invention and thin film, organic for water body, soil, air etc.
Polluting the reparation of environment, in middle low pollution environment, the clearance of aromatic compound can reach more than 92%.
The present invention prepares the reparation for organic pollutants-contaminated environment: A research review of the paper pulp/nano carbon composite material.
Detailed description of the invention
Technical solution of the present invention is not limited to the detailed description of the invention of act set forth below, also includes between each detailed description of the invention
Combination in any.
Detailed description of the invention one: the preparation method of present embodiment paper pulp/nano carbon composite material, specifically according to following step
Suddenly carry out:
One, newspaper is more than 100 DEG C in temperature, under conditions of pressure is 90MPa～150MPa, processes and obtain fiber
Element；
Two, cellulose step one obtained is in ultrasonic agitation is distributed to NaOH-urea liquid, then controls temperature and be-12 DEG C
Stirring 5min, then heating to temperature is 25 DEG C, obtains mixed solution；
Three, by nano-carbon material ultrasonic disperse to deionized water, the mixed solution stirring 10min that step 2 obtains is added,
It is then added to HNO3The mixed liquor that the mass concentration that concentration is 2mol/L and NaCl is 10% in, then use deionization
It is washed to neutrality, obtains paper pulp/nano carbon composite material.
Paper pulp/nano carbon composite material prepared by present embodiment is paper pulp/nano-sized carbon microsphere.
Detailed description of the invention two: the preparation method of present embodiment paper pulp/nano carbon composite material, specifically according to following step
Suddenly carry out:
One, newspaper is more than 100 DEG C in temperature, under conditions of pressure is 90MPa～150MPa, processes and obtain fiber
Element；
Two, cellulose step one obtained is in ultrasonic agitation is distributed to NaOH-urea liquid, then controls temperature and be-12 DEG C
Stirring 5min, then heating to temperature is 25 DEG C, obtains mixed solution；
Three, by nano-carbon material ultrasonic disperse to deionized water, the mixed solution stirring 10min that step 2 obtains is added,
Being washed with deionized water to neutrality, then sucking filtration is dried again, and obtains paper pulp/nano carbon composite material.
Paper pulp/nano carbon composite material prepared by present embodiment is paper pulp/nano-sized carbon thin film.
Detailed description of the invention three: present embodiment is unlike detailed description of the invention one or two: the NaOH-described in step 2
In urea liquid, the mass concentration 7% of NaOH, the mass concentration of carbamide are 12%.Other is with detailed description of the invention one or two
Identical.
Detailed description of the invention four: present embodiment is unlike detailed description of the invention one or two: the cellulose described in step 2
The volume ratio of quality and NaOH-urea liquid be 0.6g: 10mL.Other is identical with detailed description of the invention one or two.
Detailed description of the invention five: present embodiment is unlike detailed description of the invention one or two: nano-carbon material in step 3
For Graphene, graphene oxide or CNT.Other is identical with detailed description of the invention one or two.
Detailed description of the invention six: present embodiment is unlike detailed description of the invention one or two: nano-carbon material in step 3
It is 0.1%～50% with the mass ratio of mixed solution.Other is identical with detailed description of the invention one or two.
Detailed description of the invention seven: present embodiment is unlike detailed description of the invention one: HNO in step 33And NaCl
Mixed liquor volume and step 2 in the mass ratio of cellulose be 100mL: 0.6g.Other and detailed description of the invention one phase
With.
Detailed description of the invention eight: the paper pulp/nano carbon composite material of detailed description of the invention one or two preparation is used as adsorbing material
Reparation in environment toxic organic pollution purifies.
Employing following example checking beneficial effects of the present invention:
Embodiment one:
The preparation method of the present embodiment paper pulp/nano carbon composite material, specifically follows the steps below:
One, newspaper is 120 DEG C in temperature, under conditions of pressure is 100MPa, processes and obtain cellulose；
Two, cellulose 0.6g step one obtained is in ultrasonic agitation is distributed to the NaOH-urea liquid of 10mL, then
Controlling temperature is-12 DEG C of stirring 5min, and then heating to temperature is 25 DEG C, obtains mixed solution, wherein NaOH-carbamide
In solution, the mass concentration 7% of NaOH, the mass concentration of carbamide are 12%；
Three, by nano-carbon material ultrasonic disperse to 5mL deionized water, the mixed solution stirring that step 2 obtains is added
10min, is then added to HNO3The mixed liquor that the mass concentration that concentration is 2mol/L and NaCl is 10% in, then use
Deionized water is washed till neutrality, obtains paper pulp/nano carbon composite material, wherein, HNO3With the volume of the mixed liquor of NaCl it is
100mL。
The newspaper that in the present embodiment, step one uses is old and useless newspaper.
Paper pulp/nano carbon composite material prepared by the present embodiment is paper pulp/nano-sized carbon microsphere.
Embodiment two:
The preparation method of the present embodiment paper pulp/nano carbon composite material, specifically follows the steps below:
One, newspaper is 120 DEG C in temperature, under conditions of pressure is 100MPa, processes and obtain cellulose；
Two, cellulose 0.6g step one obtained is in ultrasonic agitation is distributed to the NaOH-urea liquid of 10mL, then
Controlling temperature is-12 DEG C of stirring 5min, and then heating to temperature is 25 DEG C, obtains mixed solution, wherein NaOH-carbamide
In solution, the mass concentration 7% of NaOH, the mass concentration of carbamide are 12%；
Three, by nano-carbon material ultrasonic disperse to 5mL deionized water, the mixed solution stirring that step 2 obtains is added
10min, then be washed with deionized water to neutrality, then sucking filtration is dried, and obtains paper pulp/nano carbon composite material.
The newspaper that in the present embodiment, step one uses is old and useless newspaper.
Paper pulp/nano carbon composite material prepared by the present embodiment is paper pulp/nano-sized carbon thin film.
Above-described embodiment method takes full advantage of the characteristic of porous material, easily separates, have raw material be easy to get, low cost, side
Method is simply rapid, be suitable for large-scale production.The Large ratio surface being had due to it, efficient adsorptivity, good stablizes
Property and stalling characteristic, have important application prospect in fields such as organic contamination process.
Porous paper pulp/Nano Carbon microsphere prepared in above-described embodiment and thin film, for water body, soil, air etc.
The reparation of organic pollutants-contaminated environment: A research review, in middle low pollution environment, the clearance of aromatic compound can reach more than 92%.
Claims (6)
1. the preparation method of paper pulp/nano carbon composite material, it is characterised in that specifically follow the steps below:
One, newspaper is more than 100 DEG C in temperature, under conditions of pressure is 90MPa～150MPa, processes and obtain cellulose；
Two, cellulose step one obtained is in ultrasonic agitation is distributed to NaOH-urea liquid, control temperature again for-12 DEG C of stirring 5min, then heating to temperature is 25 DEG C, obtains mixed solution, and in described NaOH-urea liquid, the mass concentration 7% of NaOH, the mass concentration of carbamide are 12%；
Three, by nano-carbon material ultrasonic disperse to deionized water, add the mixed solution stirring 10min that step 2 obtains, be then added to HNO3The mixed liquor that the mass concentration that concentration is 2mol/L and NaCl is 10% in, then be washed with deionized water to neutrality, obtain paper pulp/nano carbon composite material, nano-carbon material is 0.1%～50% with the mass ratio of mixed solution.
2. the preparation method of paper pulp/nano carbon composite material, it is characterised in that specifically follow the steps below:
One, newspaper is more than 100 DEG C in temperature, under conditions of pressure is 90MPa～150MPa, processes and obtain cellulose；
Two, cellulose step one obtained is in ultrasonic agitation is distributed to NaOH-urea liquid, control temperature again for-12 DEG C of stirring 5min, then heating to temperature is 25 DEG C, obtains mixed solution, and in described NaOH-urea liquid, the mass concentration 7% of NaOH, the mass concentration of carbamide are 12%；
Three, by nano-carbon material ultrasonic disperse to deionized water, adding the mixed solution stirring 10min that step 2 obtains, then be washed with deionized water to neutrality, then sucking filtration is dried, obtaining paper pulp/nano carbon composite material, nano-carbon material is 0.1%～50% with the mass ratio of mixed solution.
The preparation method of paper pulp/nano carbon composite material the most according to claim 1 and 2, it is characterised in that the quality of the cellulose described in step 2 is 0.6g: 10mL with the volume ratio of NaOH-urea liquid.
The preparation method of paper pulp/nano carbon composite material the most according to claim 1 and 2, it is characterised in that in step 3, nano-carbon material is Graphene, graphene oxide or CNT.
The preparation method of paper pulp/nano carbon composite material the most according to claim 1, it is characterised in that HNO in step 33It is 100mL: 0.6g with the volume of the mixed liquor of NaCl with the mass ratio of cellulose in step 2.
6. the application of the paper pulp/nano carbon composite material prepared such as claim 1 or 2, it is characterised in that paper pulp/nano carbon composite material purifies for the reparation of environment toxic organic pollution as adsorbing material.
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| CN104324554A (en) * | 2014-10-29 | 2015-02-04 | 天津唯能环境科技有限公司 | High-thermal conductivity graphene composite heat conducting filter material |
| CN110745888B (en) * | 2019-11-20 | 2022-12-06 | 湖南工业大学 | Microporous cellulose water purification material and preparation method thereof |
| CN110917825B (en) * | 2019-11-29 | 2022-02-15 | 中国石油大学(华东) | Composite aerogel moisture absorption material and preparation method and application thereof |
| CN111069274B (en) * | 2019-12-17 | 2021-08-10 | 中国科学院南京土壤研究所 | Nano-bioremediation method for soil in high-concentration polycyclic aromatic hydrocarbon contaminated site |
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| CN103212379A (en) * | 2013-05-17 | 2013-07-24 | 东北林业大学 | Method for preparing cellulose based dye waste water purification material with waste newspaper |
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| CN103212379A (en) * | 2013-05-17 | 2013-07-24 | 东北林业大学 | Method for preparing cellulose based dye waste water purification material with waste newspaper |
Non-Patent Citations (1)
| Title |
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| Methylene Blue Adsorption from Aqueous Solution by Magnetic Cellulose/Graphene Oxide Composite: Equilibrium, Kinetics, and Thermodynamics;Haochun Shi et al.;《Industrial & Engineering Chemistry Research》;20131224;第53卷;第1108-1118页 * |
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