CN109847709A - A kind of luffa compound oil absorption material - Google Patents
A kind of luffa compound oil absorption material Download PDFInfo
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- CN109847709A CN109847709A CN201811560045.9A CN201811560045A CN109847709A CN 109847709 A CN109847709 A CN 109847709A CN 201811560045 A CN201811560045 A CN 201811560045A CN 109847709 A CN109847709 A CN 109847709A
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- luffa
- oil absorption
- absorption material
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Abstract
The present invention relates to a kind of luffa compound oil absorption materials, its preparation process is without harmful, toxic pollutant generation, have the advantages that operation is easy and efficient, and it is compound using luffa and graphene, it can be obtained that pore structure is big, good permeability compound oil absorption material, which can repeatedly use.Luffa compound oil absorption material prepared by the present invention with high oil-absorbing and recycling effect can be applied to sea pollution by oil processing, purification of waste gas.
Description
Technical field
The present invention relates to a kind of luffa compound oil absorption materials, belong to surrounding purifying material preparation and application technical field.
Background technique
The discharge of exploitation, transportational process and the factory, city oily wastewater of petroleum be easy to cause water body oil pollution, harm
Biological health, becomes a great environmental problem of whole world concern.
In addition, edible oil can be dispersed into air in the form of mist of oil and form oil smoke when culinary art, harm also should not be underestimated, oil
A variety of toxic components in cigarette not only directly threaten human health, also will increase city fine content content, lead to air pollution, add
The generation of acute haze weather.
For this purpose, developing a kind of practical and efficient porous oil-absorbing material, other than with high oil-absorbing energy, also reside in porous
Oil absorption material need to have macropore, through-hole and microcellular structure, can quickly make containing sewage or it is discarded pass through, and efficient absorption oil
Rouge more rapidly, efficiently solves the problems, such as that oil pollution is extremely urgent in water body or air.
Nano carbon-base material especially novel graphene material, with the strong advantage of large specific surface area and oil absorption capacity, but
Graphene oil absorption material because of the shortcomings that its own binding force is poor, and there are bad mechanical strengths, and its, hole similar with sponge compared with
It is small, it is easy to be blocked, current practice is insufficient.Natural loofah is that a kind of have uniqueness by what macroscopical macropore and micropore were formed
The porous material of space structure has certain mechanical strength, but its oil absorption capacity needs to be further increased.
Summary of the invention
One is provided it is an object of the present invention to the current graphene oil absorption material binding force difference of solution and susceptible to plugging defect
Kind practical and efficient luffa compound oil absorption material, can more rapidly, efficiently adsorb grease.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of luffa compound oil absorption material, the luffa compound oil absorption material are prepared as follows to obtain:
(1) luffa is sliced, be carbonized 0.5~6h under 200~450 DEG C, anoxybiotic atmosphere, obtains carbonization luffa；
(2) carbonization luffa, cetyl trimethylammonium bromide obtained by step (1) are mixed with water, is stirred at 80~100 DEG C
1.5~2.5h takes out luffa solid and washs, and luffa solid is placed at 95~105 DEG C dry 1~2h, is modified
Luffa afterwards；
(3) it weighs graphene oxide to mix with water, is placed in 10~35min of agitated under sonication, obtains graphene oxide suspension；
(4) graphene suspension obtained by step (3) is mixed with modified luffa obtained by step (2), is placed in 120~180
10~18h of hydro-thermal reaction at DEG C, obtains composite porous, then composite porous be placed at 40~90 DEG C of gained is dried 4
~48h is to get the luffa compound oil absorption material.
Preferably, the Carbonization Conditions are that anoxybiotic atmosphere is vacuum, N in step (1)2Atmosphere or Ar atmosphere.
Preferably, the carburizing temperature is 200~280 DEG C in step (1), the carbonization time is 0.5~2h.
Preferably, in step (2), after luffa, cetyl trimethylammonium bromide, the water of the carbonization mix,
1.5~2h is stirred at 80~95 DEG C, obtains luffa solid.
Preferably, the luffa solid after dry 1~2h, is modified at 100~105 DEG C in step (2)
Luffa afterwards.
Preferably, in step (2), the quality of the luffa and cetyl trimethylammonium bromide, water of the carbonization
Than being 1: 0.08~0.1: 200~250.
Preferably, the mass ratio of the graphene and water is 1: 250~1000 in step (3).
Preferably, the hydrothermal temperature is 120~160 DEG C in step (4).
Preferably, the hydro-thermal reaction time is 10~12h in step (4).
Preferably, the composite porous drying course is in freeze drying box or vacuum oven in step (4)
Middle progress.
Compared with prior art, the beneficial effects of the present invention are:
(1) preparation process of preparation method of the present invention is without harmful, toxic pollutant generation, with operation is easy and efficient
The advantages of, and using luffa it is compound with graphene, can be obtained pore structure greatly, good permeability compound oil absorption material, this is compound
Oil absorption material can repeatedly use；
(2) luffa is handled using the method for anaerobic carbonization, carbonisation can promote moisture in luffa, volatile matter
Removing, the used time with the decomposition of cellulose, hemicellulose and lignin in luffa, and then can increase the ratio of luffa
Surface area improves oil absorbency；
(3) modified to carbonization luffa with cetyl trimethylammonium bromide, the electropositive on carbonization luffa surface can be improved,
During hydro-thermal loads graphene, the positively charged carbonization luffa in surface can increase to negatively charged graphene oxide
(GO) electrostatic attraction promotes graphene being uniformly distributed on luffa surface, prevents graphene from reuniting and grows, to be aoxidized
The luffa composite material of graphene uniform load, using hydro-thermal reaction, graphene oxide is reduced on luffa surface
Reduced graphene, and then obtain luffa compound oil absorption material；
It is as follows more particularly to key reaction:
The luffa that is carbonized is modified: cetyl trimethylammonium bromide+carbonization luffa → modification carbonization luffa (positively charged)
Graphene oxide-modification carbonized graphite network is compound: the positively charged carbonization luffa in surface+graphene oxide (negatively charged) →
The evenly dispersed luffa composite material (Electrostatic Absorption) of graphene oxide
Hydro-thermal reaction: luffa composite material → luffa compound oil absorption material of graphene uniform dispersion
(4) through carbonisation and surface modification treatment luffa, so that luffa compound oil absorption material has higher specific surface
It accumulates and promotes graphene in the uniform load of luffa threadlike network, the luffa compound oil absorption material obtained in this way both had
Good oil absorbency, and with excellent three-dimensional perforation pore structure, it can be with efficient process oily wastewater/exhaust gas.
Luffa compound oil absorption material prepared by the present invention with high oil-absorbing and recycling effect can be applied to sea
Foreign oily waste treatment, purification of waste gas.
Detailed description of the invention
Attached drawing 1 is the SEM photograph of 1 gained luffa compound oil absorption material of the embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited in
This.
Raw material used in the present invention is commercially available with reagent.
Embodiment 1:
(1) luffa is sliced, in 200 DEG C, N2Be carbonized 4h under atmosphere, obtains carbonization luffa；
(2) 0.05g cetyl trimethylammonium bromide is weighed, be added in 100ml water and is stirred, 0.5g carbonization silk is weighed
The luffa of carbonization is added in solution by melon network, the whip modified 2h at 80 DEG C, is taken out luffa solid and is washed, by silk
Melon network solid is placed at 100 DEG C dry 1h, obtains modified luffa；
(3) it weighs 50mg graphene to be added in 50ml water, in agitated under sonication mixing 10min, obtains graphene suspension；
(4) graphene suspension is mixed with modified luffa, is placed in hydro-thermal reaction 10h at 140 DEG C, obtained porous solid
Body, then gained porosu solid is placed at 90 DEG C and dries 4h, luffa compound oil absorption material can be obtained.The compound oil suction of luffa
The SEM photograph of material is shown in Fig. 1.
Embodiment 2:
(1) luffa is sliced, in 450 DEG C, N2Be carbonized 2h under atmosphere, obtains carbonization luffa；
(2) 0.05g cetyl trimethylammonium bromide is weighed, be added in 300ml water and is stirred, 1g carbonization sponge gourd is weighed
The luffa of carbonization is added in solution by network, the whip modified 1.5h at 100 DEG C, is taken out luffa solid and is washed, by silk
Melon network solid is placed at 105 DEG C dry 2h, obtains modified luffa；
(3) it weighs 300mg graphene to be added in 75ml water, in agitated under sonication mixing 35min, obtains graphene suspension；
(4) graphene suspension is mixed with modified luffa, is placed in hydro-thermal reaction 18h at 160 DEG C, obtained porous solid
Body, then gained porosu solid is placed at 40 DEG C and dries 48h, luffa compound oil absorption material can be obtained.
Embodiment 3:
(1) luffa is sliced, be carbonized 6h under 280 DEG C, vacuum, obtains carbonization luffa；
(2) 0.1g cetyl trimethylammonium bromide is weighed, be added in 400ml water and is stirred, 2g carbonization sponge gourd is weighed
The luffa of carbonization is added in solution by network, the whip modified 2.5h at 95 DEG C, is taken out luffa solid and is washed, by silk
Melon network solid is placed at 95 DEG C dry 1h, obtains modified luffa；
(3) it weighs 330mg graphene to be added in 105ml water, in agitated under sonication mixing 30min, obtains graphene suspension；
(4) graphene suspension is mixed with modified luffa, is placed in hydro-thermal reaction 12h at 180 DEG C, obtained porous solid
Body, then gained porosu solid is placed at 50 DEG C and dries 30h, luffa compound oil absorption material can be obtained.
Embodiment 4:
(1) luffa is sliced, in 400 DEG C, N2Be carbonized 0.5h under atmosphere, obtains carbonization luffa；
(2) 0.08g cetyl trimethylammonium bromide is weighed, be added in 250ml water and is stirred, 1g carbonization sponge gourd is weighed
The luffa of carbonization is added in solution by network, the whip modified 2.5h at 100 DEG C, is taken out luffa solid and is washed, by silk
Melon network solid is placed at 95 DEG C dry 2h, obtains modified luffa；
(3) it weighs 100mg graphene to be added in 80ml water, in agitated under sonication mixing 35min, obtains graphene suspension；
(4) graphene suspension is mixed with modified luffa, is placed in hydro-thermal reaction 18h at 120 DEG C, obtained porous solid
Body, then gained porosu solid is placed at 90 DEG C and dries 12h, luffa compound oil absorption material can be obtained.
Performance test experiment:
100ml di-n-octyl phthalate (simulation grease), silk prepared by Example 1~4 are added in the beaker of 250ml
Melon network compound oil absorption material is added in above-mentioned simulation grease, adsorbs 10min at room temperature, recycles the compound suction of luffa by tweezers
Light wood material calculates oil suction multiplying power (Q), and calculation formula is as follows: Q=(WAfter oil suction-WBefore oil suction)/WBefore oil suction, W is luffa compound oil absorption material
Weight before oil suction and after oil suction.Experimental result is as shown in table 1.
The detection and analysis result of 1 Examples 1 to 3 of table and comparative example
| Sample | Oil suction multiplying power |
| Embodiment 1 | 14.1 |
| Embodiment 2 | 14.5 |
| Embodiment 3 | 16.3 |
| Embodiment 4 | 13.9 |
Test and analyze result by the oil suction multiplying power of Examples 1 to 4 sample in table 1 it is found that Examples 1 to 4 sample oil suction times
Rate is higher, has preferable oil absorbency.
Claims (10)
1. a kind of luffa compound oil absorption material, which is characterized in that the luffa compound oil absorption material is made as follows
It is standby to obtain:
(1) luffa is sliced, be carbonized 0.5~6h under 200~450 DEG C, anoxybiotic atmosphere, obtains carbonization luffa；
(2) carbonization luffa, cetyl trimethylammonium bromide obtained by step (1) are mixed with water, is stirred at 80~100 DEG C
1.5~2.5h takes out luffa solid and washs, and luffa solid is placed at 95~105 DEG C dry 1~2h, is modified
Luffa afterwards；
(3) it weighs graphene oxide to mix with water, is placed in 10~35min of agitated under sonication, obtains graphene oxide suspension；
(4) graphene suspension obtained by step (3) is mixed with modified luffa obtained by step (2), is placed in 120~180
10~18h of hydro-thermal reaction at DEG C, obtains composite porous, then composite porous be placed at 40~90 DEG C of gained is dried 4
~48h is to get the luffa compound oil absorption material.
2. a kind of luffa compound oil absorption material according to claim 1, which is characterized in that in step (1), the carbonization
Condition is that anoxybiotic atmosphere is vacuum, N2Atmosphere or Ar atmosphere.
3. a kind of luffa compound oil absorption material according to claim 1 or 2, which is characterized in that described in step (1)
Carburizing temperature is 200~280 DEG C, and the carbonization time is 0.5~2h.
4. a kind of luffa compound oil absorption material according to claim 1, which is characterized in that in step (2), the carbon
After luffa, cetyl trimethylammonium bromide, the water of change mix, 1.5~2h is stirred at 80~95 DEG C, it is solid to obtain luffa
Body.
5. a kind of luffa compound oil absorption material according to claim 1, which is characterized in that in step (2), the silk
Melon network solid after dry 1~2h, obtains modified luffa at 100~105 DEG C.
6. a kind of luffa compound oil absorption material according to claim 1 or 4 or 5, which is characterized in that in step (2), institute
The luffa and cetyl trimethylammonium bromide of the carbonization stated, the mass ratio of water are 1: 0.08~0.1: 200~250.
7. a kind of luffa compound oil absorption material according to claim 1, which is characterized in that in step (3), the stone
The mass ratio of black alkene and water is 1: 250~1000.
8. a kind of luffa compound oil absorption material according to claim 1, which is characterized in that in step (4), the hydro-thermal
Reaction temperature is 120~160 DEG C.
9. a kind of luffa compound oil absorption material according to claim 1, which is characterized in that in step (4), the hydro-thermal
Reaction time is 10~12h.
10. a kind of luffa compound oil absorption material according to claim 1, which is characterized in that described more in step (4)
Hole composite material drying course is carried out in freeze drying box or vacuum oven.
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