CN103007902A - Biomimetic fat absorbing and dissolving material as well as preparation method and application thereof - Google Patents
Biomimetic fat absorbing and dissolving material as well as preparation method and application thereof Download PDFInfo
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- CN103007902A CN103007902A CN201210557824XA CN201210557824A CN103007902A CN 103007902 A CN103007902 A CN 103007902A CN 201210557824X A CN201210557824X A CN 201210557824XA CN 201210557824 A CN201210557824 A CN 201210557824A CN 103007902 A CN103007902 A CN 103007902A
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Abstract
The invention discloses a biomimetic fat absorbing and dissolving material, a preparation method and application thereof. The biomimetic fat absorbing and dissolving material comprises lipoid and a polymer, wherein the lipoid is embedded in the polymer; and the polymer is provided with a hydrophilic membrane and a lipophilic core structure, the specific surface area of the polymer is 30.3 m<2>/g, and the average grain diameter of the polymer is 8.918 nm. The preparation technology for the biomimetic fat absorbing and dissolving material is simple, conditions are easy to control, and the obtained biomimetic fat absorbing and dissolving material can effectively remove degradation-resistant hydrophobic organic contaminants in water bodies, so that the biomimetic fat absorbing and dissolving material has an extensive application prospect when used in the field of environmental management or water purification.
Description
Technical field
The present invention relates to Material Field, particularly bionical fat is inhaled molten material, also relates to this material preparation methods and applications.
Background technology
Water processed, wastewater treatment, all take efficient, low consumption, safety, cleaning as target, along with the development of science and technology, a large amount of entered environments of many artificial or external persistent organic pollutants cause environment especially to contain these persistent organic pollutants in the water body.Persistent organic pollutants, major part is hydrophobic organic pollutant (HOCs), also comprise persistence organic pollutant (POPs), have low aqueous solubility, fat-solubility characteristic, in case enter in the various materials of organism, with protein or fat higher affinity is arranged, can produce biological accumulation toxicity.Persistent organic pollutants are to biodegradation, photodissociation, the chemical breakdown effect has higher resistivity, flora in the general activated sludge only has faint degraded to these persistent organic pollutants or can't degrade at all, waste water through two stage treatment technique even tertiary treatment process processing, even the BOD(biochemical oxygen demand (BOD)), the COD(COD), suspension in the SS(water quality) etc. basic index can reach requirement, but persistent organic pollutants still exist, and persistent organic pollutants can be at water body, retain time several years in the environment such as soil and bed mud.
Because seriousness and popularity that persistent organic pollutants are polluted drop into a large amount of manpower and materials in succession in the global range, control and the removing method of research and searching persistent organic pollutants.At present the main treatment process of persistent organic pollutants in the water body there are the technology such as advanced oxidation, ultrasonic cavitation, electrolysis and photocatalysis oxidation technique, but carry out practical application in commercial scale, also have many problem demanding prompt solutions.
Therefore, be badly in need of seeking a kind of method of processing persistent organic pollutants, can accelerate the natural degradation process, simultaneously the low-resource loss.
Summary of the invention
One of purpose of the present invention is to provide bionical fat to inhale molten material, that a kind of the structure take adipocyte as maternal bionical fat by interfacial polymerization inhaled molten material, difficult degradation hydrophobic organic pollutant in the water body is effectively removed, especially low concentration, by what conventional means can't thoroughly be eradicated organism is had the organic matter of direct or indirect harm, comprise that persistence organic pollutant (POPs) effectively processes; Two of purpose of the present invention is to provide bionical fat to inhale molten material preparation method, and the preparation method is simple, and condition is controlled; Three of purpose of the present invention is to provide bionical fat to inhale the application of molten material.
For achieving the above object, technical scheme is:
1. bionical fat is inhaled molten material, and described bionical fat is inhaled molten material and comprised lipoid and polymer, and described lipoid is embedded in the inside of described polymer, and described polymer has hydrophilic film and lipophilicity inner core.
Preferably, described lipoid is olein.
Preferably, described polymer is polyamide.
2. described bionical fat is inhaled molten material preparation method, comprises the steps:
A. fat-soluble polymerization single polymerization monomer, lipoid and dispersant are dissolved in the organic solvent, consist of organic phase, the mass fraction of fat-soluble polymerization single polymerization monomer is 2.5-20% in the described organic phase, and the volume fraction of dispersant is 0.25-1.5 %, and the mass fraction of lipoid is 5-30 %;
B. the water-soluble polymeric monomer is dissolved in the deionized water, consists of water, the mass fraction of described aqueous phase water-soluble polymeric monomer is 2.5-20 %;
C. under ice-water bath and stirring condition, step b gained water is at the uniform velocity added in the step a gained organic phase, described fat-soluble polymerization single polymerization monomer becomes polymer with the water-soluble polymeric monomer polymerization, and then the described lipoid of embedding gets bionical fat and inhales molten material.
Among the present invention, the mass fraction of fat-soluble polymerization single polymerization monomer is 10% in the described organic phase, and the volume fraction of dispersant is 1%, when the mass fraction of lipoid is 15%, and best results; The mass fraction of described aqueous phase water-soluble polymeric monomer is the best results of 15 %.
Preferably, described dispersant is polyoxyethylene 20 sorbitan monolaurate.
Preferably, described organic solvent is carbon trichloride and cyclohexane.
Preferably, described fat-soluble polymerization single polymerization monomer is paraphthaloyl chloride or pyromellitic trimethylsilyl chloride.
Preferably, described water-soluble polymeric monomer is that 1,6-hexamethylene diamine is or/and piperazine.
3. described bionical fat is inhaled the application of molten material in the degraded hydrophobic organic pollutant.
Preferably, described hydrophobic organic pollutant is lindane.
Beneficial effect of the present invention: bionical fat disclosed by the invention is inhaled molten material, utilize the absorption of liposoluble substance in biological adipose tissue, migration and enrichment principle, by the interfacial polymerization mode, acquisition has the bionical fat of hydrophilic film and lipophilicity inner core and inhales molten material, and the specific area that the bionical fat of gained is inhaled molten material is 30.3 m
2/ g, average grain diameter is 8.918 nm; The invention also discloses bionical fat and inhale molten material preparation method, integrated artistic is simple and reliable, and condition is easy to control; The bionical fat that makes is inhaled molten material and can effectively be removed difficult degradation hydrophobic organic pollutant in the water body, the lindane of 10 μ g/L can be reduced to drinking water maximum acceptable concentration 0.1 μ g/L, can also remove the hydrophobic organic compound that distributes in the percolate tail water fully, be used for removing water body difficult degradation hydrophobic organic pollutant, market prospects are huge.
Description of drawings
Bionical fat is inhaled the front 2000 times of electromicroscopic photographs of aggressiveness of molten material among Fig. 1 embodiment 1.
Fig. 2 embodiment 1 bionical fat is inhaled 2000 times of electromicroscopic photographs of molten material.
Bionical fat is inhaled the front 2000 times of electromicroscopic photographs of aggressiveness of molten material among Fig. 3 embodiment 2.
Bionical fat is inhaled 2000 times of electromicroscopic photographs of molten material among Fig. 4 embodiment 2.
The specific embodiment
Below in conjunction with embodiment technical scheme of the present invention is described further, but described embodiment is not construed as limiting the invention for example.
Embodiment 1
Bionical fat is inhaled molten material preparation method, and concrete steps are:
A. add olein, paraphthaloyl chloride and tween-20(polyoxyethylene 20 sorbitan monolaurate to chloroform/cyclohexane (V:V, 1:4) mixed organic solvents), get organic phase; The mass fraction of olein is 10% after adding, and the mass fraction of paraphthaloyl chloride is that the volume fraction of 15%, tween-20 is 1%;
B. the mass fraction to 1,6-hexamethylene diamine is 15% in the deionized water with adding with 1,6-hexamethylene diamine, gets water;
C. step b gained water is placed ice-water bath, under stirring in 1500 rpm/ minutes, step a gained organic phase is at the uniform velocity dropped to aqueous phase with 30 droplets/minute, paraphthaloyl chloride and 1,6-hexamethylene diamine generation polymerization form polyamide; React complete after, to remove by-product hydrochloric acid, room temperature is dried with the deionized water washed product, gets bionical fat and inhales molten material, then 25 ℃ of drying preservations.
The bionical fat that obtains is inhaled molten material carry out particle diameter and specific area test, the result is as shown in table 1.
Table 1, bionical fat are inhaled molten material character
As shown in Table 1, the bionical fat that present embodiment makes is inhaled molten material specific pore volume increases by 2.1 times, and average pore size increases by 1.8 times, and specific area is with the quantity varying aperture is little at most.
Then the bionical fat of electron microscopic observation is inhaled molten material and front aggressiveness, and the result is by illustrated in figures 1 and 2.Bionical fat is inhaled before the molten material aggressiveness to present white loose Powdered as shown in Figure 1, and shape is in small, broken bits, and granular size differs, and inhomogeneous, has obvious hole between particle.As shown in Figure 2, it is full that bionical fat is inhaled molten material granule, and packing is very large, and the surface is also very coarse, can see still being cross-linked to each other together that full particle is high-visible, and dash area is olein tunicle covered section in the middle of it.
The bionical fat that present embodiment is made is inhaled molten material and is used for removing lindane, and with active carbon remove lindane compare (lindane configuration concentration: 7.0mg/L, measured concentration: 6.9mg/L), the result is as shown in table 2:
The bionical fat that table 2, present embodiment make is inhaled molten material lindane is removed efficient
| Bionical fat is inhaled molten material | Lindane is removed efficient (%) |
| Embodiment 1 | 93.29 |
| Powdered Activated Carbon | 98.36 |
| Contrast | 0 |
As shown in Table 2, it is good to the removal effect of lindane that the bionical fat that present embodiment makes is inhaled molten material, and clearance reaches 93.29%.
Embodiment 2
A. add first olein, acyl chlorides (paraphthaloyl chloride and the ratio 1:1 of pyromellitic trimethylsilyl chloride functional group) and tween-20 to chloroform/cyclohexane (V:V, 1:4) mixed solvent, get organic phase; The mass fraction of olein is 15 % after adding, and the mass fraction of acyl chlorides is that the volume fraction of 15%, tween-20 is 1%;
B. amine (1,6-hexamethylene diamine and the ratio 1:1 of piperazine functional group) is dissolved in the deionized water of 100ml, making the gross mass percentage of 1,6-hexamethylene diamine and piperazine amine is 15%, gets water;
C. step b gained water is placed ice-water bath, under stirring in 2000 rpm/ minutes, step a gained organic phase at the uniform velocity is added drop-wise to aqueous phase with 30 droplets/minute, polymerization occurs form polyamide; React complete after, to remove by-product hydrochloric acid, room temperature is dried with the deionized water washed product, gets bionical fat and inhales molten material, then 25 ℃ of drying preservations.
The bionical fat that obtains is inhaled molten material carry out particle diameter and specific area test, the result is as shown in table 3.
The character of table 3 embodiment 2 polymer
As shown in Table 3, the molten material specific pore volume of bionical fat suction that present embodiment makes increases by 1.9 times, and average pore size increases by 2.0 times, and specific area is with the increase of quantity aperture is less at most.
Then the bionical fat of electron microscopic observation is inhaled molten material and poly-precursor, and the result is by Fig. 3 and shown in Figure 4.Front aggressiveness presents the white loose graininess and in conjunction with fine and close, has irregular surface texture as shown in Figure 3; The molten material granule of bionical fat suction is full as shown in Figure 4, and packing is very large, and the surface is also very coarse, can see still being cross-linked to each other together that full particle is high-visible, and dash area is olein tunicle covered section in the middle of it.
The bionical fat that present embodiment is made is inhaled molten material and is used for removing lindane, and with active carbon remove lindane oppose (according to lindane configuration concentration: 7.0mg/L, measured concentration: 6.9mg/L), the result is as shown in table 4:
The bionical fat that table 4, present embodiment make is inhaled molten material lindane is removed efficient
| Bionical fat is inhaled molten material | Lindane is removed efficient (%) |
| Embodiment 2 | 97.68 |
| Powdered Activated Carbon | 98.36 |
| Contrast | 0 |
As shown in Table 4, it is good to the removal effect of lindane that the bionical fat that present embodiment makes is inhaled molten material, and clearance reaches 97.68%, and is suitable with activated carbon removal efficient.
Embodiment 3
Inhale molten material with the bionical fat of preparation among the embodiment 2 and carry out hydrophobic organic in the percolate tail water, and compare with Powdered Activated Carbon.Be specially:
A. the bionical fat molten material of suction and the Powdered Activated Carbon with 2.0 g joins respectively in the wide-mouth bottle of 1 L percolate tail water, the polyethylene film sealing, room temperature stirs with 100 rmp speed with magnetic stirring apparatus, reach balance in order to react fully, sampling after 48 hours;
B. step a gained water sample and percolate tail water are concentrated with solid phase extraction: use successively 5 mL methyl alcohol before the extraction, 5 mL deionized waters infiltrate and drip washing SPE post (SUPELCO USA), and 400 mL are passed through the water sample of 0.45 μ m membrane filtration with 4 mL.min
-1Flow velocity, by the SPE post, then with the washing of 5 mL deionized waters, use at last 5 mL carrene wash-out SPE posts under the condition of negative pressure, eluent blows near dried with nitrogen, carrene is settled to 1 mL, and is to be measured;
C. step b gained sample is analyzed with GC-MS: GC condition, injection port: 270 ℃; Temperature programming: 50 ℃ keep 4min, rise to 280 ℃ with the programming rate of 15 ℃/min, then keep 30min; Sample size: 1 μ L; DB 5 capillary columns (30 m * 0.25 mm * 0.25 μ m); Carrier gas: 1 mL/min helium; MS condition: electron bombardment ionization source EI, electron energy 70eV, 250 ℃ of ion source temperatures, full scan mode, sweep speed 500amu/s, sweep limits 50-600u.
The relative abundance of percolate tail water, the hydrophobic organic compound after bionical fat is inhaled molten material and Powdered Activated Carbon processing is as shown in table 5.
Table 5, the bionical fat molten material of suction of 2.0 g/L and Powdered Activated Carbon are to percolate tail water organic matter removal efficient
| Sample | Relative abundance | Clearance % |
| Percolate tail water control sample | 6.58 E 7 | N |
| Inhale the percolate tail water of molten material processed through bionical fat | 1.19 E 7 | 81.9 |
| Percolate tail water through the Powdered Activated Carbon processing | 1.96 E 7 | 70.2 |
Percolate tail water is through after the SPE as shown in Table 5, and it is 6.58 E that hydrophobic organic compound detects abundance
7And after percolate tail water inhales molten material and Powdered Activated Carbon and process through the bionical fat of 2.0 g/L, the hydrophobic organic compound abundance reduces by 81.9 % and 70.2 % in the percolate tail water, it is good for the hydrophobic organic compound removal effect in the percolate tail water to show that bionical fat is inhaled molten material, is better than Powdered Activated Carbon.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although by invention has been described with reference to the preferred embodiments of the present invention, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present invention that appended claims limits.
Claims (10)
1. bionical fat is inhaled molten material, it is characterized in that: described bionical fat is inhaled molten material and is comprised lipoid and polymer, and described lipoid is embedded in the inside of described polymer, and described polymer has hydrophilic film and lipophilicity inner core.
2. bionical fat according to claim 1 is inhaled molten material, and it is characterized in that: described lipoid is olein.
3. bionical fat according to claim 1 is inhaled molten material, and it is characterized in that: described polymer is polyamide.
4. each described bionical fat of claim 1-3 is inhaled molten material preparation method, it is characterized in that, comprises the steps:
A. fat-soluble polymerization single polymerization monomer, lipoid and dispersant are dissolved in the organic solvent, consist of organic phase, the mass fraction of fat-soluble polymerization single polymerization monomer is 2.5-20% in the described organic phase, and the volume fraction of dispersant is 0.25-1.5 %, and the mass fraction of lipoid is 5-30 %;
B. the water-soluble polymeric monomer is dissolved in the deionized water, consists of water, the mass fraction of described aqueous phase water-soluble polymeric monomer is 2.5-20 %;
C. under ice-water bath and stirring condition, step b gained water is at the uniform velocity added in the step a gained organic phase, described fat-soluble polymerization single polymerization monomer becomes polymer with the water-soluble polymeric monomer polymerization, and then the described lipoid of embedding gets bionical fat and inhales molten material.
5. described bionical fat is inhaled molten material preparation method according to claim 4, and it is characterized in that: described dispersant is polyoxyethylene 20 sorbitan monolaurate.
6. described bionical fat is inhaled molten material preparation method according to claim 4, and it is characterized in that: described organic solvent is carbon trichloride and cyclohexane.
7. described bionical fat is inhaled molten material preparation method according to claim 4, and it is characterized in that: described fat-soluble polymerization single polymerization monomer is paraphthaloyl chloride or pyromellitic trimethylsilyl chloride.
8. each described bionical fat is inhaled molten material preparation method according to claim 4-7, and it is characterized in that: described water-soluble polymeric monomer is that 1,6-hexamethylene diamine is or/and piperazine.
9. each described bionical fat of claim 1-3 is inhaled the application of molten material in the degraded hydrophobic organic pollutant.
10. application according to claim 9 is characterized in that: described hydrophobic organic pollutant is lindane.
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Cited By (2)
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| CN114751583A (en) * | 2022-03-16 | 2022-07-15 | 黄山天马新材料科技有限公司 | Polyester resin production wastewater treatment method |
| CN115920913A (en) * | 2022-10-18 | 2023-04-07 | 江苏爱柯道环保工程科技有限公司 | Lipid-modified micro-hydrophobic electro-catalytic material and preparation method and application thereof |
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| CN115920913A (en) * | 2022-10-18 | 2023-04-07 | 江苏爱柯道环保工程科技有限公司 | Lipid-modified micro-hydrophobic electro-catalytic material and preparation method and application thereof |
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