CN116099517A - Adsorption material prepared by using magnetic eutectic solvent and method for adsorbing dye in waste engine oil and waste water by using adsorption material - Google Patents
Adsorption material prepared by using magnetic eutectic solvent and method for adsorbing dye in waste engine oil and waste water by using adsorption material Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 145
- 239000002351 wastewater Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 65
- 230000005496 eutectics Effects 0.000 title claims abstract description 60
- 239000002904 solvent Substances 0.000 title claims abstract description 60
- 239000002699 waste material Substances 0.000 title claims abstract description 47
- 239000010705 motor oil Substances 0.000 title claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 57
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 20
- 239000001257 hydrogen Substances 0.000 claims abstract description 20
- 239000000696 magnetic material Substances 0.000 claims abstract description 12
- 238000000227 grinding Methods 0.000 claims abstract description 7
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- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims abstract description 3
- 239000000975 dye Substances 0.000 claims description 76
- 239000003463 adsorbent Substances 0.000 claims description 44
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims description 43
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 43
- 239000007864 aqueous solution Substances 0.000 claims description 29
- 229940068041 phytic acid Drugs 0.000 claims description 16
- 239000000467 phytic acid Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical group OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 12
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 12
- 235000002949 phytic acid Nutrition 0.000 claims description 12
- 229940113115 polyethylene glycol 200 Drugs 0.000 claims description 12
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 11
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 claims description 7
- 229940012189 methyl orange Drugs 0.000 claims description 7
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims description 7
- 229940043267 rhodamine b Drugs 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 abstract description 3
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
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- 238000006243 chemical reaction Methods 0.000 description 68
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- 239000010919 dye waste Substances 0.000 description 2
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- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
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- 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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
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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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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- 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
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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- B01J20/28009—Magnetic properties
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The application discloses an adsorption material prepared by using a magnetic eutectic solvent and a method for adsorbing dye in waste engine oil and waste water by using the adsorption material, belongs to the field of sewage treatment and waste engine oil recovery, and realizes waste treatment by waste by using lithium cobalt oxide as a positive electrode waste material of a lithium battery. In the technical scheme of the application, the components of the adsorption material comprise eutectic solvent, magnetic material and lithium cobaltate; the adsorption material is prepared by the steps of 1) stirring and mixing a hydrogen bond donor and a hydrogen bond acceptor to form a eutectic solvent; 2) Mixing the eutectic solvent, the magnetic material and lithium cobaltate in proportion to obtain an intermediate mixture; 3) Heating and stirring the intermediate mixture to obtain an adsorption material; 4) Grinding the adsorption material obtained in the step 3) to be powder. The invention has the advantages of overcoming the defects of the prior art, treating waste with waste, being simple and convenient to operate, having high adsorption efficiency and being convenient to recycle, and having high practical application value for waste water treatment, waste engine oil recycling and lithium battery recycling.
Description
Technical Field
The invention relates to an adsorption material prepared by using a magnetic eutectic solvent and a method for adsorbing waste engine oil and dye in waste water by using the adsorption material, belonging to the field of waste water treatment and waste engine oil recovery.
Background
Along with the development and progress of technology, lithium ion batteries are widely applied to various fields such as production and life due to the advantages of high energy density, high charging efficiency, small self-discharge and the like, but lithium cobalt oxide in the positive electrode material of the lithium ion batteries has high production cost and causes environmental pollution due to improper treatment. The eutectic solvent is a two-component or three-component eutectic formed by combining a hydrogen bond acceptor and a hydrogen bond donor, has the advantages of low cost, simple synthesis, strong biodegradability, good biocompatibility and the like, is called as a green solvent in the 21 st century, is one of the eutectic solvents, and has mild, green and efficient conditions for dissolving lithium cobaltate by using the magnetic eutectic solvent. Dye wastewater is one of main industrial wastewater, heavy metal ions in dye cannot be degraded, and the heavy metal ions are accumulated in a human body through the transmission of a food chain to cause harm to the human body. The waste engine oil contains cancerogenic substances, wherein the aromatic organic compounds can harm the blood system and the nervous system of a human body when contacting the human body, but the cost for recycling the waste engine oil is higher at present.
Disclosure of Invention
The invention provides an adsorption material prepared by using a magnetic eutectic solvent and a method for adsorbing dye in waste engine oil and waste water, which are used for treating waste by waste, are simple and convenient to operate, have high adsorption efficiency and convenient to recover, and have high practical application values for waste water treatment and lithium battery recovery.
In order to solve the technical problems, the invention adopts the technical scheme that the adsorption material prepared by using the magnetic eutectic solvent comprises the components of the eutectic solvent, the magnetic material and lithium cobaltate; the adsorbent material is prepared by the steps of,
1) Stirring and mixing a hydrogen bond donor and a hydrogen bond acceptor to form a eutectic solvent;
2) Mixing the eutectic solvent, the magnetic material and lithium cobaltate in proportion to obtain an intermediate mixture;
3) Heating and stirring the intermediate mixture to obtain an adsorption material;
4) Grinding the adsorption material obtained in the step 3) to be powder;
in the step 2), the ratio of the eutectic solvent to the magnetic material to the lithium cobaltate is 4-8 parts by weight of the eutectic solvent, 0.5-1.5 parts by weight of the magnetic material and 0.05-0.15 parts by weight of the lithium cobaltate.
Optimally, the adsorption material prepared by the magnetic eutectic solvent has the hydrogen bond donor of polyethylene glycol 200 and the hydrogen bond acceptor of the eutectic solvent of phytic acid; the magnetic material is ferroferric oxide.
Preferably, the molar ratio of the hydrogen bond donor in the eutectic solvent to the hydrogen bond acceptor in the eutectic solvent is 1:1.
Optimally, in the adsorption material prepared by using the magnetic eutectic solvent, in the step 1), a hydrogen bond donor and a hydrogen bond acceptor are stirred and mixed at 60 ℃ to form the eutectic solvent.
Preferably, in step 3), the above adsorption material prepared by using the magnetic eutectic solvent is an intermediate mixture. Stirring at 100 ℃ for 24 hours to obtain the adsorption material.
A method for adsorbing dye in waste water comprises adsorbing dye waste water by using the adsorption material prepared by using a magnetic eutectic solvent, wherein the dye waste water is waste water containing one or more dyes of methylene blue, methyl orange and rhodamine B.
Optimally, the dye adsorption process is carried out at normal temperature, and the adsorption time is 1-72 hours.
Preferably, in the method for adsorbing the dye in the wastewater, the concentration of the aqueous dye solution is 0.2-10 micromoles per liter, and the volume of the aqueous dye solution is 5-15 milliliters.
Preferably, in the method for adsorbing the dye in the wastewater, the ratio of the adsorption material to the aqueous dye solution is 1 g/5 ml to 0.1 g/15 ml.
A method for adsorbing waste engine oil utilizes a magnetic eutectic solvent to prepare an adsorption material for adsorbing the waste engine oil, wherein the mass of the adsorption material is 2 g, the adsorption temperature is 25 ℃, the adsorption time is 20 minutes to 3 hours, the mass fraction range of the water content of the engine oil is 0 to 0.2, and the mass fraction of the engine oil is 0.1 g.
And transferring the solid-liquid mixture in the reaction bottle to a 15 ml centrifuge tube immediately after the adsorption is finished, putting the mixture into a high-speed centrifuge for 20 minutes per minute at 12000 rpm, and filtering out the novel material by using a needle filter after the centrifugation is finished to obtain filtrate.
Measuring the absorbance of the original methylene blue aqueous solution and the absorbed methylene blue aqueous solution by using a spectrophotometer with distilled water as a reference at a wavelength of 662 nanometers, measuring the absorbance of the original rhodamine B aqueous solution and the absorbed rhodamine B aqueous solution with distilled water as a reference at a wavelength of 554 nanometers, and measuring the absorbance of the original methyl orange aqueous solution and the absorbed methyl orange aqueous solution with distilled water as a reference at a wavelength of 464 nanometers; the adsorption rate was calculated from the measured absorbance.
In the technical scheme of the application, polyethylene glycol 200 and phytic acid are mixed into a eutectic solvent, and then the eutectic solvent, ferroferric oxide and lithium cobaltate are mixed according to certain conditions to obtain the adsorption material, and the adsorption material has magnetism, is simple and convenient to separate after adsorbing dye and waste engine oil in waste water, and accords with the concept of treating waste by waste.
The invention provides a method for adsorbing dye in wastewater, which combines the recovery of lithium cobalt oxide as a positive electrode material of a lithium ion battery with the adsorption of dye in wastewater. The method not only realizes the recovery of the lithium ion battery anode material, but also can adsorb dye and waste engine oil in the waste water, and accords with the concept of treating waste with waste. The method is simple and convenient to operate, high in adsorption efficiency, convenient to recycle, environment-friendly and has important practical application values for wastewater treatment and lithium battery recycling.
Drawings
FIG. 1 is a graph showing the influence of time, dye concentration, dye volume and novel material quality on the dye adsorption effect in wastewater;
fig. 2 is a graph showing the effect of the adsorption material in the present application on the adsorption of methylene blue, methyl orange, rhodamine B in wastewater.
Detailed Description
The technical features of the present invention are further described below in conjunction with specific embodiments.
The invention provides an adsorption material prepared by using a magnetic eutectic solvent and a method for adsorbing dye in wastewater by using the adsorption material.
Wherein, the chemical formulas of polyethylene glycol 200 and phytic acid of the eutectic solvent are as follows,
the chemical formula of the ferroferric oxide is as follows,
the chemical formula of the dye is as follows:
example 1
The embodiment discloses an adsorption material prepared by using a magnetic eutectic solvent, which mainly comprises polyethylene glycol 200, phytic acid, ferroferric oxide and lithium cobaltate.
The preparation method mainly comprises the following steps:
polyethylene glycol 200:phytic acid with the molar ratio of 1:1 is added into a reagent bottle, and the mixture is fully stirred at the temperature of 60 ℃ to generate the polyethylene glycol 200-phytic acid eutectic solvent.
The eutectic solvent, the ferroferric oxide and the lithium cobaltate are mixed in a reaction bottle according to the mass ratio of 5:1:0.1 and then put into an oil bath pot, and stirred for 24 hours at 100 ℃ to obtain the adsorption material.
Grinding the adsorption material by using a mortar, and then placing the ground adsorption material into a reagent bottle for storage for later use.
The embodiment also discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb the dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1, the adsorption rate of the novel material to methylene blue in wastewater was measured by spectrophotometry to be 55.80%.
Example 2
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of rhodamine B aqueous solution with a concentration of 10. Mu. Mol/l was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured using a spectrophotometer at a wavelength of 554 nm. As shown in fig. 2, the adsorption rate of the novel material to rhodamine B in wastewater was 51.53% as measured by spectrophotometry.
Example 3
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of the reaction flask, 5 ml of an aqueous solution of methyl orange having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured using a spectrophotometer at a wavelength of 464 nm. As shown in fig. 2, the adsorption rate of the novel material to methyl orange in wastewater was measured by spectrophotometry to be 55.12%.
Example 4
The embodiment discloses an adsorption material prepared by using a magnetic eutectic solvent, which mainly comprises polyethylene glycol 200, phytic acid, ferroferric oxide and lithium cobaltate.
The preparation method mainly comprises the following steps:
polyethylene glycol 200:phytic acid with the molar ratio of 1:1 is added into a reagent bottle, and the mixture is fully stirred at the temperature of 60 ℃ to generate the polyethylene glycol 200-phytic acid eutectic solvent.
The eutectic solvent and lithium cobaltate are mixed in a reaction bottle according to the mass ratio of 5:0.1, and then put into an oil bath pot, and stirred for 24 hours at 100 ℃ to obtain the adsorption material.
Grinding the adsorption material by using a mortar, and then placing the ground adsorption material into a reagent bottle for storage for later use.
The embodiment also discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb the dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. The adsorption rate of the novel material to methylene blue in the wastewater is 44.44 percent by using a spectrophotometry.
Example 5
The embodiment discloses an adsorption material prepared by using a magnetic eutectic solvent, which mainly comprises polyethylene glycol 200, phytic acid, ferroferric oxide and lithium cobaltate.
The preparation method mainly comprises the following steps:
polyethylene glycol 200:phytic acid with the molar ratio of 1:1 is added into a reagent bottle, and the mixture is fully stirred at the temperature of 60 ℃ to generate the polyethylene glycol 200-phytic acid eutectic solvent.
The eutectic solvent and the ferroferric oxide are mixed in a reaction bottle according to the mass ratio of 5:1, and then are put into an oil bath pot, and are stirred for 24 hours at 100 ℃ to obtain the adsorption material.
Grinding the adsorption material by using a mortar, and then placing the ground adsorption material into a reagent bottle for storage for later use.
The embodiment also discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb the dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. The adsorption rate of the novel material to methylene blue in the wastewater is 46.61 percent by using a spectrophotometry.
Example 6
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 1 hour.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. The adsorption rate of the novel material to methylene blue in the wastewater is 49.54 percent by using a spectrophotometry.
Example 7
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 4 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1a, the adsorption rate of the novel material to methylene blue in wastewater was 53.66% as measured by spectrophotometry.
Example 8
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 24 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1a, the adsorption rate of the novel material to methylene blue in wastewater was 59.95% as measured by spectrophotometry.
Example 9
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 72 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1a, the adsorption rate of the novel material to methylene blue in wastewater was 72.10% as measured by spectrophotometry.
Example 10
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 10 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1c, the adsorption rate of the novel material to methylene blue in wastewater was 48.70% as measured by spectrophotometry.
Example 11
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 15 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1c, the adsorption rate of the novel material to methylene blue in wastewater was measured to be 43.54% by spectrophotometry.
Example 12
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.10 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1d, the adsorption rate of the novel material to methylene blue in the wastewater is 54.35% by spectrophotometry.
Example 13
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.20 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1d, the adsorption rate of the novel material to methylene blue in wastewater is 72.19% by spectrophotometry.
Example 14
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.50 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1d, the adsorption rate of the novel material to methylene blue in wastewater is 86.08% by spectrophotometry.
Example 15
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
1.00 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue having a concentration of 10. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1d, the adsorption rate of the novel material to methylene blue in wastewater is 94.54% by spectrophotometry.
Example 16
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue at a concentration of 5. Mu. Mol per liter was added and the mixture was placed in a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1d, the adsorption rate of the novel material to methylene blue in the wastewater is 65.03% by spectrophotometry.
Example 17
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue at a concentration of 2.5. Mu. Mol per liter was added and the mixture was placed in a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1d, the adsorption rate of the novel material to methylene blue in the wastewater is 73.40% by spectrophotometry.
Example 18
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue at a concentration of 1. Mu. Mol/liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1d, the adsorption rate of the novel material to methylene blue in wastewater is 76.57% by spectrophotometry.
Example 19
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.15 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue at a concentration of 0.2. Mu. Mol per liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. As shown in FIG. 1b, the adsorption rate of the novel material to methylene blue in wastewater was 83.33% as measured by spectrophotometry.
Example 20
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the prepared adsorption material to adsorb dye wastewater, and the adsorption method mainly comprises the following steps:
0.20 g of the adsorbent material was weighed out at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue at a concentration of 0.2. Mu. Mol per liter was added and the mixture was put into a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. The absorption rate of the novel material to methylene blue in the wastewater is 57.14 percent by using a spectrophotometry.
Example 21
This embodiment differs from embodiment 1 in that:
this example discloses a method for adsorbing dye in wastewater, which uses the recovered adsorption material in example 20 to perform adsorption treatment on dye wastewater, and the adsorption treatment method mainly comprises the following steps:
the adsorbent material in the needle filter of example 20 was washed with absolute ethanol, and the recovered adsorbent material was obtained after suction filtration under reduced pressure. The recovered adsorption material was placed at the bottom of a reaction flask, 5 ml of an aqueous solution of methylene blue at a concentration of 0.2. Mu. Mol per liter was added and the mixture was placed in a magnet, and the reaction was stirred in an oil bath at 25℃for 8 hours.
Immediately after the adsorption was completed, the solid-liquid mixture in the reaction flask was transferred to a 15 ml centrifuge tube, and the centrifuge tube was placed in a high-speed centrifuge and centrifuged at 12000 rpm for 20 minutes. After centrifugation, the novel material was filtered off using a pin filter to obtain a filtrate.
The absorbance of the filtrate was measured at a wavelength of 662 nm using a spectrophotometer. The adsorption rate of the novel material to methylene blue in the wastewater is 59.52 percent by using a spectrophotometry.
Example 22
This example discloses an adsorbent prepared by using a magnetic eutectic solvent, which mainly comprises polyethylene glycol 200, phytic acid, ferroferric oxide and lithium cobaltate.
The preparation method mainly comprises the following steps:
polyethylene glycol 200:phytic acid with the molar ratio of 1:1 is added into a reagent bottle, and the mixture is fully stirred at the temperature of 60 ℃ to generate the polyethylene glycol 200-phytic acid eutectic solvent.
The eutectic solvent, the ferroferric oxide and the lithium cobaltate are mixed in a reaction bottle according to the mass ratio of 5:1:0.1 and then put into an oil bath pot, and stirred for 24 hours at 100 ℃ to obtain the adsorption material.
And placing the prepared adsorption material into a crucible, placing the crucible into a muffle furnace, calcining at 500 ℃ for 1 hour, and preserving heat for 2 hours to obtain the adsorbent.
Grinding the adsorption material by using a mortar, and then placing the ground adsorption material into a reagent bottle for storage for later use.
The embodiment also discloses a method for adsorbing the waste engine oil, which uses the prepared adsorbent to adsorb the waste engine oil, and mainly comprises the following steps:
0.1 g of adsorbent and 2 g of waste engine oil with water content of 0% are weighed into a centrifuge tube, and adsorbed for 20 minutes at 25 ℃.
After the adsorption is finished, the centrifugal tube is centrifuged for 5 minutes at a rotating speed of 1000 revolutions per minute, and then the non-adsorbed engine oil is poured out by placing the centrifugal tube at a position with a fixed inclination angle for 5 minutes, the data of the actual adsorbed oil quantity is measured and calculated by using an analytical balance, and the adsorption efficiency (expressed by the amount of waste engine oil adsorbed by 1 gram of adsorbent) is calculated.
Under the condition of 25 ℃,0.1 g of adsorbent can adsorb 0.2413 g of waste engine oil with water content of 0%, and the adsorption efficiency is 240.82%.
Example 23
This embodiment differs from embodiment 22 in that:
the embodiment discloses a method for adsorbing waste engine oil, which uses the prepared adsorbent to adsorb the waste engine oil, and mainly comprises the following steps:
0.1 g of adsorbent and 2 g of waste engine oil with water content of 0% are weighed into a centrifuge tube, and adsorbed for 1 hour at 25 ℃.
After the adsorption is finished, the centrifugal tube is centrifuged for 5 minutes at a rotating speed of 1000 revolutions per minute, and then the non-adsorbed engine oil is poured out by placing the centrifugal tube at a position with a fixed inclination angle for 5 minutes, the data of the actual adsorbed oil quantity is measured and calculated by using an analytical balance, and the adsorption efficiency (expressed by the amount of waste engine oil adsorbed by 1 gram of adsorbent) is calculated.
Under the condition of 25 ℃,0.1 g of adsorbent can adsorb 0.2401 g of waste engine oil with water content of 0%, and the adsorption efficiency is 240.10%.
Example 24
This embodiment differs from embodiment 22 in that:
the embodiment discloses a method for adsorbing waste engine oil, which uses the prepared adsorbent to adsorb the waste engine oil, and mainly comprises the following steps:
0.1 g of adsorbent and 2 g of waste engine oil with water content of 0% are weighed into a centrifuge tube, and adsorbed for 3 hours at 25 ℃.
After the adsorption is finished, the centrifugal tube is centrifuged for 5 minutes at a rotating speed of 1000 revolutions per minute, and then the non-adsorbed engine oil is poured out by placing the centrifugal tube at a position with a fixed inclination angle for 5 minutes, the data of the actual adsorbed oil quantity is measured and calculated by using an analytical balance, and the adsorption efficiency (expressed by the amount of waste engine oil adsorbed by 1 gram of adsorbent) is calculated.
Under the condition of 25 ℃,0.1 g of adsorbent can adsorb 0.2423 g of waste engine oil with water content of 0%, and the adsorption efficiency is 241.33%.
Example 25
This embodiment differs from embodiment 22 in that:
the embodiment also discloses a method for adsorbing the waste engine oil, which uses the prepared adsorbent to adsorb the waste engine oil, and mainly comprises the following steps:
0.1 g of adsorbent and 2 g of waste engine oil with the water mass fraction of 20% are weighed and placed in a centrifuge tube, and are adsorbed for 20 minutes at 25 ℃.
After the adsorption is finished, the centrifugal tube is centrifuged for 5 minutes at a rotating speed of 1000 revolutions per minute, and then the non-adsorbed engine oil is poured out by placing the centrifugal tube at a position with a fixed inclination angle for 5 minutes, the data of the actual adsorbed oil quantity is measured and calculated by using an analytical balance, and the adsorption efficiency (expressed by the amount of waste engine oil adsorbed by 1 gram of adsorbent) is calculated.
Under the condition of 25 ℃,0.1 g of adsorbent can adsorb 0.5779 g of waste engine oil with water content of 0%, and the adsorption efficiency is 576.75%.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that various changes, modifications, additions and substitutions can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. An adsorption material prepared by using a magnetic eutectic solvent, which is characterized in that: the composition comprises eutectic solvent, magnetic material and lithium cobaltate, and is prepared by the following steps,
1) Stirring and mixing a hydrogen bond donor and a hydrogen bond acceptor to form a eutectic solvent;
2) Mixing the eutectic solvent, the magnetic material and lithium cobaltate in proportion to obtain an intermediate mixture;
3) Heating and stirring the intermediate mixture to obtain an adsorption material;
4) Grinding the adsorption material obtained in the step 3) to be powder;
in the step 2), the ratio of the eutectic solvent to the magnetic material to the lithium cobaltate is 4-8 parts by weight of the eutectic solvent, 0.5-1.5 parts by weight of the magnetic material and 0.05-0.15 parts by weight of the lithium cobaltate.
2. The adsorption material prepared using a magnetic eutectic solvent according to claim 1, wherein: the hydrogen bond donor of the eutectic solvent is polyethylene glycol 200, and the hydrogen bond acceptor of the eutectic solvent is phytic acid; the magnetic material is ferroferric oxide.
3. The adsorption material prepared using a magnetic eutectic solvent according to claim 1, wherein: the molar ratio of the hydrogen bond donor in the eutectic solvent to the hydrogen bond acceptor in the eutectic solvent is 1:1.
4. The adsorption material prepared using a magnetic eutectic solvent according to claim 1, wherein: in step 1), the hydrogen bond donor and the hydrogen bond acceptor are stirred and mixed at 60 ℃ to form a eutectic solvent.
5. The adsorption material prepared using a magnetic eutectic solvent according to claim 1, wherein: in step 3), the intermediate mixture is stirred at 100 degrees celsius for 24 hours to obtain an adsorbent material.
6. A method for adsorbing dye in wastewater, which is characterized by comprising the following steps: adsorbing dye wastewater by using the adsorption material prepared by using the magnetic eutectic solvent according to any one of claims 1 to 5, wherein the dye wastewater is wastewater containing one or more dyes of methylene blue, methyl orange and rhodamine B; or dye wastewater.
7. The method for adsorbing dye in wastewater according to claim 6, wherein: the dye is adsorbed at normal temperature for 1-72 hr.
8. The method for adsorbing dye in wastewater according to claim 6, wherein: the concentration of the dye aqueous solution is 0.2-10 micromoles per liter, and the volume of the dye aqueous solution is 5-15 milliliters.
9. The method for adsorbing dye in wastewater according to claim 6, wherein: the ratio of adsorbent material to aqueous dye solution used is 1 g/5 ml to 0.1 g/15 ml.
10. A method for adsorbing waste engine oil is characterized by comprising the following steps: the adsorption material is prepared by using the magnetic eutectic solvent and is used for adsorbing waste engine oil, the mass of the adsorbent is 2 g, the adsorption temperature is 25 ℃, the adsorption time range is 20 minutes to 3 hours, the mass fraction range of the water content of the engine oil is 0 to 0.2, and the mass fraction of the engine oil is 0.1 g.
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| 刘文: "《药用高分子材料学》", 31 July 2017, 中国中医药出版社, pages: 151 - 152 * |
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