CN105833840A - Preparation method of carbon nanometer tube sponge base adsorption material - Google Patents
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Abstract
The invention discloses a preparation method of a carbon nanometer tube sponge base adsorption material. According to the method, firstly, artemisinine medicine is used as nanometer sliver reducing agents and protecting agents to reduce nanometer silver; then, carbon nanometer tube sponge is soaked into a nanometer silver water solution to be subjected to ultrasonic drying; 3 to 5 times of soaking and ultrasonic drying processes are repeated to finally obtain the carbon nanometer tube sponge base adsorption material. The artemisinine medicine is used as the nanometer silver reducing agents and protection agents, and the preparation method has the characteristics that the process is simple; the raw material sources are wide; the reaction is mild; green and environment-friendly effects are achieved, and the like. The prepared nanometer silver simultaneously achieves the antibacterial and antimalarial dual effects. By repeating 3 to 5 times of soaking and ultrasonic drying processes, the nanometer silver can be uniformly distributed on activate carbon, the attachment is stable, and falling cannot easily occur. The carbon nanometer tube sponge base adsorption material prepared by the preparation method provided by the invention has wide application prospects in the fields of sewage treatment and air purification.
Description
Technical field
The invention belongs to field of nanometer material technology, particularly to the preparation method of a kind of CNT sponge adsorbing material.
Background technology
Along with China's economy, the fast development of society, the continuous growth of the size of population, the quickening of industrialization and urbanization advances, and water pollution, air pollution episode take place frequently, and bring serious infringement to the health of environment and people.Therefore, waste water control and air cleaning have become as an instant task.
The Treatment process of polluted-water has multiple, wherein absorption method because of easily preparation, low cost, advantages of good adsorption effect and by large-scale use.Polymeric sorbent, microbial adsorbent, the mineral substance adsorbents etc. such as the conventional active charcoal of adsorbing material, chitosan.The absorption property of activated carbon is easily by size and the polarity effect of adsorbate molecules, and the rate of adsorption reduces along with the rising of temperature and the decline of pollutant levels；Natural adsorbing material have inexpensive, nontoxic, the advantage such as be easy to get, but the natural conditions such as its absorption is uncontrollable, regeneration difficulty, uses by blowing, rainfall, snowfall are affected bigger；The absorption property of polymer adsorbing material easily by its functional group, polarity and structure affected (lift a sail, Li Jing, Tan Jianhua, Wang Bo, Huang Fu. the progress [J] of Heavymetal Wastewater Treatment by Adsorption. chemical industry be in progress, 2013,11:2749-2756；Yan Jing, Dai Chaomeng, Zhou Xuefei, Zhang Yalei. carbon nano tube compound material is for cutting down the progress [J] of pollutant in water environment. material Leader, 2015,01:127-131；Nie Haiyu, Shen Ganni, Du Fengpei, Li Xiangdong. the progress [J] that water pollutant is adsorbed by CNT. Southwest University for Nationalities journal (natural science edition), 2015,03:326-330).
The time in all one's life of people about more than 80% is spent in indoor, therefore the quality of IAQ (indoor air quality) directly influences the healthy (Wu Lirui of people, open the blue heart, Yu Fei, Chen Junhong, Ma Jie. aminated carbon nano tube/graphene aerogel PARA FORMALDEHYDE PRILLS(91,95) absorption research [J]. China Environmental Science, 2015,11:3251-3256).Day by day serious along with outdoor air pollution, adds that many interior decorations and the pollution of ornament materials and a large amount of chemical article enter family daily life so that room air the most constantly deteriorates.And being widely used of air-conditioning increasingly tends to so that indoor vivosphere closing, cause the self-detergent power of room air worse and worse.People have breathed stale room air, it is possible to cause various respiratory tract disease.Along with enhancing and the growth in the living standard of health of people consciousness, recognize all the more the clean air importance to health.Therefore, air purifier the most gradually enters into family and various office space.In European and American developed countries, air clearing product has been commonly used for household, office life area.Survey data shows, air purifier reaches 27% in the popularity rate of the U.S., Japan 17%, Europe 42%, Korea S 70%, and China is less than 1%.
At present, the purification techniques that domestic and international air purifier is commonly used mainly has: the methods such as the purification of UV purification, photocatalyst, plasma for purification, filtration, purification, electrostatic precipitation, adsorption cleaning, anion fine-purification, ozone purification, molecular complex.In these air purifying process, using absorption principle to purify air is a time-honored technology.Activated carbon is the most frequently used adsorbent, has certain adsorption to indoor multiple harmful gas, but it exists the shortcomings such as little, the most saturated, the easy desorbing of adsorbance, and limited to indoor major pollutants formaldehyde absorbing effect, and can not sterilize.
Nanometer silver has excellent conductivity of heat, electric conductivity, surface activity and catalytic performance, has huge using value in optics, catalysis, microelectronics, bio-sensing, the field such as antibacterial.The preparation of traditional nanometer silver is divided into Physical and chemical method.Instrument and equipment is required higher by Physical, and producing cost is expensive.Chemical method many employings hydrazine hydrate, formaldehyde, polyhydric alcohol, organic amine etc. make reducing agent, although these reducing agents have high activity, but to bad environmental, and easily there is agglomeration in the nanometer silver prepared.
In recent years, use green, environmental protection, efficient and cheap method prepare nanometer silver be increasingly becoming research focus (Chai Chunjing, Bai Hongjuan. the progress [J] of bioanalysis synthesizing nano-silver material. electroplate and environmental protection, 2011,02:4-7).The green reducing agent used at present specifically includes that vitamin, sodium citrate, pyro acid, hydroquinone, tea polyphenols, glucose, fructose, sucrose, plant and peel extract, microorganism etc..
Arteannuin is the sesquiterpene lactones medicine having peroxy-radical extracted from plant Artemisia annua leaf.Conjoint therapy based on artemisinin-based drug has become as the malaria standard treatment of world health organisation recommendations.World Health Organization (WHO) is thought, arteannuin conjoint therapy is the maximally effective means of malaria for the treatment of at present, also it is resistant to the medicine that malaria drug resistance effect is best, the Chinese discovery side as antimalarial agent arteannuin and largest production side, in malaria process is resisted in the whole world, plays important function.Especially in Africa, malaria severely afflicated area, arteannuin has saved life up to a million.According to the statistical data of World Health Organization (WHO), from 2000, area, Sub-Saharan Africa about 2.4 hundred million population benefits from arteannuin conjoint therapy, and about 1,500,000 people avoid, because of this therapy, the death that malaria causes.In October, 2015, Chinese Human-Female pharmacy man slaughter cry of a deer because formulating novel antimalarial artemisinin and the contribution of dihydroarteannuin, with other two scientists share 2015 year Nobel prize's soul.This is the world-class highest Grand Prix that Chinese biomedical circle obtains up to now.
The arteannuin one the sesquiterpene lactones compound containing peroxy-radical, molecular formula is C15H22O5, 15 carbon have 7 to be chiral carbon.Molecular weight 282.33, constituent content: C, 63.81%, H, 7.85%, O, 28.33%, colourless acicular crystal, bitter in the mouth.In acetone, ethyl acetate, chloroform, benzene and glacial acetic acid readily soluble, solubilized in ethanol and methanol, ether and petroleum ether, the most insoluble in water.Fusing point: 156-157 DEG C (Cai Boying. the progress [J] of arteannuin. science Chinese, 2015,35:55).
CNT sponge is a kind of three-dimensional porous network structure by the unordered accumulation of multi-walled carbon nano-tubes, and the block structure size prepared is up to centimetre scale.CNT sponge can elastic deformation to the most variously-shaped and can not subside to big strain by Repeated Compression in air or liquid.And the CNT sponge being in densification once contacts oil-phase solution and can be expanded to initial configuration immediately.CNT sponge can a variety of solvent of absorption of high selectivity and oil-phase solution can recycle, solvent capacity is sponge own wt 180 times adsorbed, the adsorbance of specific activity charcoal is high two orders of magnitude (Zhao Wenqi. the controlled preparation of three-dimensional porous CNT sponge composite and performance study [D]. Harbin Institute of Technology, 2015；Shen dance is graceful. and nuclear emergency use in waste water treatment is Prussian blue/CNT sponge adsorbing material and performance [D]. Nanjing Aero-Space University, 2014；Wang Chongle. the mechanism and enhancement mechanism of CNT sponge/polymer matrix composite and performance study [D]. Harbin Institute of Technology, 2013).
Summary of the invention
The present invention is directed to the deficiency that prior art exists, it is desirable to provide the preparation method of a kind of CNT sponge adsorbing material.
The technical scheme is that:
(1) silver nitrate methanol or the ethanol solution of 1-100g/L are configured, it is then slowly added into artemisinin-based drug, stir, it is subsequently placed in illumination 5-60min under uviol lamp, obtain nano-class silver colloidal solution, obtaining nanometer silver after ethanol purge, centrifugal, dried, the nano-silver water solution being then configured to 0.01-100g/L is stand-by；
(2) CNT sponge impregnating taking out in described 0.01-100g/L nano-silver water solution drying after ultrasonic 10min-100min, wherein said CNT sponge is 100:1-10:1 with the mass ratio of nanometer silver；
(3) repeat to obtain CNT sponge adsorbing material for 3-5 time by step (2).
As a kind of preferred version, described artemisinin-based drug includes arteannuin and derivant thereof.
As a kind of preferred version, described artemisinin derivative includes dihydroartemisinine, Artemether, artesunate etc..
As a kind of preferred version, described artemisinin-based drug is 10:1-1:1 with the mass ratio of silver nitrate.
As a kind of preferred version, the average caliber 50nm of described CNT sponge, porosity 98%.
There is advantages that
Compared with prior art, the invention have the advantage that
(1) use artemisinin-based drug as the reducing agent of nanometer silver and protective agent, have that technique is simple, raw material sources extensively, the feature such as reaction gentleness, environmental protection, and the nanometer silver prepared has antibacterial and malaria double effects simultaneously；
(2) process repeating 3-5 dipping-ultrasonic-drying makes nanometer silver be evenly distributed on CNT sponge, adheres to stable, difficult drop-off；
(3) due to nanometer silver, the synergism of CNT sponge base, the CNT sponge adsorbing material that the present invention prepares can remove the multiple polluter such as the heavy metal ion in interior multiple air pollution source and sewage such as PM2.5, formaldehyde, virus, antibacterial, acarid, dyestuff effectively.Have broad application prospects in waste water control and air purification field.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is expanded on further.
Embodiment 1:
1g silver nitrate is dissolved in the methanol of 10mL the silver nitrate solution configuring 100g/L, it is then slowly added into 2g arteannuin, stir, it is subsequently placed in wavelength 365nm, illumination 60min under the uviol lamp of power 50w, obtain nano-class silver colloidal solution, after ethanol purge, centrifugal, dried, obtain nanometer silver.
0.1g nanometer silver is dissolved in the deionized water of 10mL the nano-silver water solution configuring 10g/L, then 1g CNT sponge impregnating is taken out after ultrasonic 10min in described 10g/L nano-silver water solution and dry, repeat this process and finally give CNT sponge adsorbing material for 3 times.
Embodiment 2:
1g silver nitrate is dissolved in the methanol of 10mL the silver nitrate solution configuring 100g/L, it is then slowly added into 5g dihydroartemisinine, stir, it is subsequently placed in wavelength 365nm, illumination 30min under the uviol lamp of power 50w, obtain nano-class silver colloidal solution, after ethanol purge, centrifugal, dried, obtain nanometer silver.
0.1g nanometer silver is dissolved in the deionized water of 10mL the nano-silver water solution configuring 10g/L, then 5g CNT sponge impregnating is taken out after ultrasonic 50min in described 10g/L nano-silver water solution and dry, repeat this process and finally give CNT sponge adsorbing material for 4 times.
Embodiment 3:
1g silver nitrate is dissolved in the ethanol of 10mL the silver nitrate solution configuring 100g/L, it is then slowly added into 10g artesunate, stir, it is subsequently placed in wavelength 365nm, illumination 10min under the uviol lamp of power 50w, obtain nano-class silver colloidal solution, after ethanol purge, centrifugal, dried, obtain nanometer silver.
0.1g nanometer silver is dissolved in the deionized water of 10mL the nano-silver water solution configuring 10g/L, then 10g CNT sponge impregnating is taken out after ultrasonic 100min in described 10g/L nano-silver water solution and dry, repeat this process and finally give CNT sponge adsorbing material for 5 times.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot all of embodiment be given exhaustive.Every belong to obvious change that technical scheme amplified out or the variation row still in protection scope of the present invention.
Claims (6)
1. the preparation method of a CNT sponge adsorbing material, it is characterised in that:
(1) silver nitrate methanol or the ethanol solution of 1-100g/L are configured, it is then slowly added into artemisinin-based drug, stir, it is subsequently placed in illumination 5-60min under uviol lamp, obtain nano-class silver colloidal solution, obtaining nanometer silver after ethanol purge, centrifugal, dried, the nano-silver water solution being then configured to 0.01-100g/L is stand-by；
(2) CNT sponge impregnating taking out in described 0.01-100g/L nano-silver water solution drying after ultrasonic 10min-100min, wherein said CNT sponge is 100:1-10:1 with the mass ratio of nanometer silver；
(3) repeat to obtain CNT sponge adsorbing material for 3-5 time by step (2).
The preparation method of a kind of CNT sponge adsorbing material the most according to claim 1, it is characterised in that described artemisinin-based drug includes arteannuin and derivant thereof.
The preparation method of a kind of CNT sponge adsorbing material the most according to claim 1, it is characterised in that described artemisinin derivative includes dihydroartemisinine, Artemether, artesunate etc..
The preparation method of a kind of CNT sponge adsorbing material the most according to claim 1, it is characterised in that described artemisinin-based drug is 10:1-1:1 with the mass ratio of silver nitrate.
The preparation method of a kind of CNT sponge adsorbing material the most according to claim 1, it is characterised in that described uviol lamp wavelength 365nm, power 50w.
The preparation method of a kind of CNT sponge adsorbing material the most according to claim 1, it is characterised in that the average caliber 50nm of described CNT sponge, porosity 98%.
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| KR101434639B1 (en) * | 2012-09-26 | 2014-08-26 | 경상대학교산학협력단 | Silver Nano-CNT Mixing Particle for Cleaning Material |
| CN105198039A (en) * | 2015-09-29 | 2015-12-30 | 北京大学 | Method for recycling oil stain by aid of carbon nano-tube and sponge electric-control oil displacement technologies |
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2016
- 2016-06-10 CN CN201610401471.2A patent/CN105833840A/en active Pending
Patent Citations (6)
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| CN102294250A (en) * | 2011-05-27 | 2011-12-28 | 北京大学 | Three-dimensional carbon nanotube nano composite catalyst, and preparation method and application thereof |
| WO2012177223A1 (en) * | 2011-06-24 | 2012-12-27 | Nanyang Technological University | A nanocomposite, a filtration membrane comprising the nanocomposite, and methods to form the nanocomposite and the filtration membrane |
| CN102553526A (en) * | 2011-12-20 | 2012-07-11 | 华北电力大学（保定） | Method for removing mercury ions from water by using silver-modified magnetic carbon nanotube and regeneration method |
| KR101434639B1 (en) * | 2012-09-26 | 2014-08-26 | 경상대학교산학협력단 | Silver Nano-CNT Mixing Particle for Cleaning Material |
| CN103706805A (en) * | 2013-12-26 | 2014-04-09 | 徐剑晖 | Method for preparing carbon material carrying nanometer multi-element metal |
| CN105198039A (en) * | 2015-09-29 | 2015-12-30 | 北京大学 | Method for recycling oil stain by aid of carbon nano-tube and sponge electric-control oil displacement technologies |
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