CN110170312A - Preparation method of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve and products thereof and application - Google Patents
Preparation method of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve and products thereof and application Download PDFInfo
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- CN110170312A CN110170312A CN201910464255.6A CN201910464255A CN110170312A CN 110170312 A CN110170312 A CN 110170312A CN 201910464255 A CN201910464255 A CN 201910464255A CN 110170312 A CN110170312 A CN 110170312A
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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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
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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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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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
- C02F1/281—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
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
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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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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Abstract
The present invention relates to a kind of preparation methods of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve and products thereof and application, first mesoporous template and sodium metasilicate be mixed and are made into precursor sol, after place it in crystallization in polytetrafluoro reaction kettle, suction filtration, washing, dry preparation SBA-15 mesopore molecular sieve；Then SBA-15 mesopore molecular sieve is put into the chitosan acetic acid solution prepared and stirs a period of time, adjust pH to alkalinity, washing is dried to obtain Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent.The present invention is adsorbent by Chitosan-coated SBA-15 mesopore molecular sieve, using chitosan to the coordination of ammonia nitrogen, to strengthening molecular sieve to the removal effect of ammonia nitrogen, while there is certain adsorption treatment effect to heavy metal ion, COD, coloration etc., ammonia nitrogen removal frank is up to 80% or more.
Description
Technical field
The invention belongs to technical field of sewage, it is related to a kind of preparation method of ammonia nitrogen adsorbent, more particularly to a kind of
Preparation method of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve and products thereof and application.
Background technique
It is continuously improved with the rapid development of social economy with people's lives level, a large amount of industrial wastewaters for being rich in ammonia nitrogen
It is discharged into water body with sanitary sewage, so that ammonia nitrogen concentration constantly increases in water body, causes water quality deterioration, and conventional treatment work
Skill " coagulation-precipitating-filtering-disinfection " is difficult to effectively solve ammonia and nitrogen pollution quality problem.
Currently, both at home and abroad ammonia nitrogen waste water processing method have bioanalysis, ion-exchange, absorption method, gas blow-off method and
Break point chlorination method etc., wherein absorption method is become with its high efficiency, stability, easy to operate, inexpensive and without secondary pollution etc. advantages
The ideal method of ammonia nitrogen waste water processing.Mesoporous material SBA-15 is a kind of mesoporous material of two-dimentional hexagonal structure, its specific surface
Product is big, there is a uniform channel diameter distribution, aperture can modulation, so SBA-15 mesopore molecular sieve is in catalysis, separation, biology and receives
The fields such as rice material have wide practical use, especially in terms of as new adsorbent, because having other adsorbents can not
The superiority of analogy and be concerned.Chitosan is a kind of bioabsorbable polymer material, contains a large amount of amino in molecular structure
(- NH2) and the groups such as hydroxyl (- OH), property is active, and the pollution such as ammonia nitrogen, heavy metal ion can be effectively removed by coordinate bond
Object, but when exclusive use, it is easy to happen reunion, the removal effect of pollutant is impacted.It is asked to solve the reunion of chitosan
Topic, while the selection adsorption capacity of SBA-15 mesopore molecular sieve is improved, the present invention passes through Chitosan-coated SBA-15 mesoporous molecular
Sieve is adsorbent, using chitosan to the coordination of ammonia nitrogen, improves the adsorption capacity to ammonia nitrogen in water, is ammonia nitrogen in water process
Removal provides Technical Reference.
Summary of the invention
For the deficiency of existing NH3-N elimination method, the purpose of the invention is to provide one kind to be based on Chitosan-coated
The ammonia nitrogen adsorbent of the preparation method of the ammonia nitrogen adsorbent of SBA-15 mesopore molecular sieve, this method simple process and preparation adsorbs ammonia
Nitrogen ability is higher.
Another object of the present invention is: provide a kind of preparation of the above method based on mesoporous point of Chitosan-coated SBA-15
The ammonia nitrogen adsorbent product of son sieve.
Another object of the present invention is to: a kind of application of the said goods is provided.
The object of the invention is realized by following proposal: a kind of ammonia nitrogen suction based on Chitosan-coated SBA-15 mesopore molecular sieve
Attached dose of preparation method, it is characterised in that this method successively includes the preparation and Chitosan-coated processing of SBA-15 mesopore molecular sieve
Two steps of SBA-15 mesopore molecular sieve:
1) preparation of SBA-15 mesopore molecular sieve
Mesoporous template is dissolved in constant temperature in 50mL HCl solution and stirs 2h, Na is added2SiO3•9H2O continuously stirs 0.5 ~ 3h
Afterwards, suspension is poured into the stainless steel autoclave of polytetrafluoroethyllining lining, is put into baking oven crystallization；Reaction is taken out afterwards
Kettle filters obtained suspension, and deionized water is washed to neutrality, dry 12h at 60 DEG C, roasts and obtains at 550 DEG C
SBA-15 mesopore molecular sieve；
2) preparation of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
Chitosan 0.5g is taken, is dissolved in 50 ~ 200mL acetic acid solution, stirring to addition 5g SBA-15 mesoporous molecular after completely dissolution
Sieve stirs 0.5 ~ 1h, and the NaOH solution that 0.05mol/L is added adjusts pH value of solution to 10 ~ 13, is centrifugated solid matter, spends
Ion water washing is dried to obtain Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent to neutrality.
Mesoporous template described in step 1) is one of P123, F127, CTAB or more than one combinations.
Na described in step 1)2SiO3•9H2The molar ratio of O and mesoporous template is 1:0.05 ~ 0.3.
The concentration of HCl solution described in step 1) is 0.2 ~ 1mol/L；The crystallization time is 24 ~ 72h；The roasting
Calcining time is 6 ~ 10h.
The mass fraction of acetic acid solution described in step 2 is 1 ~ 5%.
Drying described in step 2, for one of freeze-drying, vacuum drying and spray drying.
Dry described in step 2, drying temperature is 50 ~ 100 DEG C, drying time is 12 ~ for 24 hours.
The present invention provides a kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, according to any of the above-described
The method is prepared.
The present invention provides a kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve in sewage treatment
Application.
The ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve that the present invention is prepared, effectively increases
Adsorbance and the rate of adsorption of the adsorbent to ammonia nitrogen.
First mesoporous template and sodium metasilicate be mixed and are made into precursor sol, after to place it in polytetrafluoro anti-
Answer crystallization in kettle, suction filtration, washing, dry preparation SBA-15 mesopore molecular sieve；Then SBA-15 mesopore molecular sieve is put into and is prepared
Chitosan acetic acid solution in stir a period of time, adjust pH to alkalinity, it is mesoporous that washing is dried to obtain Chitosan-coated SBA-15
Molecular sieve ammonia nitrogen adsorbent.The present invention is adsorbent by Chitosan-coated SBA-15 mesopore molecular sieve, using chitosan to ammonia
The coordination of nitrogen to strengthen molecular sieve to the removal effect of ammonia nitrogen, while having one to heavy metal ion, COD, coloration etc.
Fixed adsorption treatment effect.
The beneficial effects of the present invention are:
1. being adsorbent by Chitosan-coated SBA-15 mesopore molecular sieve, using chitosan to the coordination of ammonia nitrogen, improve
To the adsorption capacity of ammonia nitrogen small molecule in water, to strengthen molecular sieve to the removal effect of ammonia nitrogen.
2.SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent preparation process is simple, and low raw-material cost, is actually using
It can be used in conjunction with each other with some more expensive adsorbents in journey, such complementation has high economic benefit.
3. being somebody's turn to do the ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve there is excellent ammonia nitrogen to inhale ammonia nitrogen
Attached performance, while there is certain adsorption treatment effect to heavy metal ion, COD, coloration etc., ammonia nitrogen removal frank is up to 80% or more.
Specific embodiment
Elaborate below to the embodiment of the present invention: the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, is prepared according to the following steps:
1) preparation of SBA-15 mesopore molecular sieve
The mesoporous template P123 of 21.75g is dissolved in constant temperature in 50mL 0.2mol/L HCl solution and stirs 2h, 21.32g is added
Na2SiO3•9H2After continuously stirring 0.5h, suspension is poured into the stainless steel autoclave of polytetrafluoroethyllining lining by O,
It is put into baking oven crystallization for 24 hours.After take out reaction kettle, obtained suspension is filtered, deionized water is washed to neutrality, at 60 DEG C
12h is dried, roasting 6h obtains SBA-15 mesopore molecular sieve at 550 DEG C.
2) preparation of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
Chitosan 0.5g is taken, is dissolved in the acetic acid solution that 50mL mass fraction is 1%, stirring to addition 5g SBA- after completely dissolution
15 mesopore molecular sieves stir 0.5h, and the NaOH solution that 0.05mol/L is added adjusts pH value of solution to 10, are centrifugated solid matter,
It is washed with deionized to neutrality, 50 DEG C of vacuum drying 12h obtain Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
1。
The experimental data of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen absorption is as shown in table 1.
Embodiment 2
A kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, is prepared according to the following steps:
1) preparation of SBA-15 mesopore molecular sieve
The mesoporous template P123 of 30.45g is dissolved in constant temperature in 50mL 0.5mol/L HCl solution and stirs 2h, 21.32g is added
Na2SiO3•9H2After continuously stirring 0.5h, suspension is poured into the stainless steel autoclave of polytetrafluoroethyllining lining by O,
It is put into baking oven crystallization for 24 hours.After take out reaction kettle, obtained suspension is filtered, deionized water is washed to neutrality, at 60 DEG C
12h is dried, roasting 6h obtains SBA-15 mesopore molecular sieve at 550 DEG C.
2) preparation of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
Chitosan 0.5g is taken, is dissolved in the acetic acid solution that 50mL mass fraction is 3%, stirring to addition 5g SBA- after completely dissolution
15 mesopore molecular sieves stir 0.5h, and the NaOH solution that 0.05mol/L is added adjusts pH value of solution to 10, are centrifugated solid matter,
It is washed with deionized to neutrality, 60 DEG C of freeze-drying 12h obtain Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
2。
The experimental data of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen absorption is as shown in table 1.
Embodiment 3
A kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, is prepared according to the following steps:
1) preparation of SBA-15 mesopore molecular sieve
The mesoporous template CTAB of 5.47g is dissolved in constant temperature in 50mL 0.2mol/L HCl solution and stirs 2h, 21.32g is added
Na2SiO3•9H2O after continuously stirring 1h, suspension is poured into the stainless steel autoclave of polytetrafluoroethyllining lining, is put
Enter baking oven crystallization 48h.After take out reaction kettle, obtained suspension is filtered, deionized water is washed to neutrality, at 60 DEG C do
Dry 12h, roasting 6h obtains SBA-15 mesopore molecular sieve at 550 DEG C.
2) preparation of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
Chitosan 0.5g is taken, being dissolved in 100mL mass fraction is stirring to addition 5g SBA- after completely dissolution in 2% acetic acid solution
15 mesopore molecular sieves stir 1h, and the NaOH solution that 0.05mol/L is added adjusts pH value of solution to 10, are centrifugated solid matter, use
Deionized water is washed to neutrality, is dried in vacuo at 60 DEG C and is obtained Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent for 24 hours
3。
The experimental data of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen absorption is as shown in table 1.
Embodiment 4
A kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, is prepared according to the following steps:
1) preparation of SBA-15 mesopore molecular sieve
The mesoporous template CTAB of 8.20g is dissolved in constant temperature in 50mL 0.5mol/L HCl solution and stirs 2h, is added
21.32g Na2SiO3•9H2Suspension after continuously stirring 2h, is poured into the stainless steel reaction under high pressure of polytetrafluoroethyllining lining by O
In kettle, it is put into baking oven crystallization for 24 hours.After take out reaction kettle, obtained suspension is filtered, deionized water is washed to neutrality,
12h is dried at 60 DEG C, roasting 10h obtains SBA-15 mesopore molecular sieve at 550 DEG C.
2) preparation of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
Chitosan 0.5g is taken, is dissolved in the acetic acid solution that 50mL mass fraction is 5%, stirring to addition 5g SBA- after completely dissolution
15 mesopore molecular sieves stir 0.5h, and the NaOH solution that 0.05mol/L is added adjusts pH value of solution to 12, are centrifugated solid matter,
It is washed with deionized to neutrality, 100 DEG C of spray drying obtain Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent 4.
The experimental data of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen absorption is as shown in table 1.
Embodiment 5
A kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, is prepared according to the following steps:
1) preparation of SBA-15 mesopore molecular sieve
The mesoporous template F127 of 47.25g is dissolved in constant temperature in 50mL 0.2mol/L HCl solution and stirs 2h, 21.32g is added
Na2SiO3•9H2O after continuously stirring 3h, suspension is poured into the stainless steel autoclave of polytetrafluoroethyllining lining, is put
Enter baking oven crystallization 48h.After take out reaction kettle, obtained suspension is filtered, deionized water is washed to neutrality, at 60 DEG C do
Dry 12h, roasting 10h obtains SBA-15 mesopore molecular sieve at 550 DEG C.
2) preparation of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
Chitosan 0.5g is taken, is dissolved in the acetic acid solution that 100mL mass fraction is 2%, stirring to being added 5g after completely dissolution
SBA-15 mesopore molecular sieve stirs 1h, and the NaOH solution that 0.05mol/L is added adjusts pH value of solution to 10, is centrifugated solids
Matter is washed with deionized to neutrality, and 60 DEG C of vacuum drying obtain Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen absorption for 24 hours
Agent 5.
The experimental data of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen absorption is as shown in table 1.
Ammonia nitrogen absorption experiment
Take the ammonia nitrogen waste water that 100mL ammonia nitrogen concentration is 500mg/L in beaker, adjusting wastewater pH is 10, and it is poly- to put into 3g shell to it
Sugar cladding SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent (1,2,3,4,5), is stirred at room temperature 30 minutes, supernatant is taken after standing
Measure remaining ammonia nitrogen concentration in water.Prepared in embodiment Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent (1,2,
3,4,5) adsorption test data as shown in table 1:
。
Claims (9)
1. a kind of preparation method of the ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, which is characterized in that packet
Include the preparation and Chitosan-coated processing two steps of SBA-15 mesopore molecular sieve of SBA-15 mesopore molecular sieve, in which:
1) preparation of SBA-15 mesopore molecular sieve
It is that constant temperature stirs 2h in 0.2 ~ 1mol/L HCl solution that mesoporous template, which is dissolved in 50mL concentration, and Na is added2SiO3•9H2O,
The Na2SiO3•9H2The molar ratio of O and mesoporous template is 1:0.05 ~ 0.3, and after continuously stirring 0.5 ~ 3h, suspension is fallen
Enter to have in the stainless steel autoclave of polytetrafluoroethyllining lining, is put into baking oven crystallization；After take out reaction kettle, the suspension to obtaining
Liquid is filtered, and deionized water is washed to neutrality, dry 12h at 60 DEG C, and roasting obtains SBA-15 mesopore molecular sieve at 550 DEG C；
2) preparation of Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent
Chitosan 0.5g is taken, is dissolved in 50 ~ 200mL acetic acid solution, stirring to addition 5g SBA-15 mesoporous molecular after completely dissolution
Sieve stirs 0.5 ~ 1h, and the NaOH solution that 0.05mol/L is added adjusts pH value of solution to 10 ~ 13, is centrifugated solid matter, spends
Ion water washing is dried to obtain Chitosan-coated SBA-15 mesopore molecular sieve ammonia nitrogen adsorbent to neutrality.
2. the method according to claim 1, wherein in step 1), the mesoporous template be P123, F127,
One of CTAB or more than one combination.
3. the method according to claim 1, wherein the crystallization time is 24 ~ 72h in step 1).
4. according to the method described in claim 1, it is characterized in that in step 1)；The calcining time of the roasting is 6 ~ 10h.
5. according to the method described in claim 1, it is characterized in that in step 2, the mass fraction of the acetic acid solution is 1 ~
5%。
6. according to the method described in claim 1, it is characterized in that drying described in step 2, dry for freeze-drying, vacuum
One of dry and spray drying.
7. according to the method described in claim 1, drying temperature is 50 ~ 100 DEG C it is characterized in that dry described in step 2,
Drying time be 12 ~ for 24 hours.
8. a kind of ammonia nitrogen adsorbent based on Chitosan-coated SBA-15 mesopore molecular sieve, it is characterised in that according to claim 1-
7 any the methods are prepared.
9. a kind of ammonia nitrogen adsorbent according to claim 8 based on Chitosan-coated SBA-15 mesopore molecular sieve is at sewage
Application in reason.
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2019
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| CN104353424A (en) * | 2014-11-24 | 2015-02-18 | 辽宁大学 | Amine-containing functional mesoporous material and application thereof to separation of rhenium and molybdenum |
| CN106669598A (en) * | 2016-12-21 | 2017-05-17 | 浙江大学 | Novel zeolite adsorbent for removing anionic pollutant in water and preparation method |
| CN106925225A (en) * | 2017-03-17 | 2017-07-07 | 北京中能环科技术发展有限公司 | A kind of functional mesoporous adsorbent of molecular sieve of histidine and its application in the treatment of waste water |
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| XINRAN XIANG等: "Fabrication of chitosan-mesoporous silica SBA-15 nanocomposites via functional ionic liquid as the bridging agent for PPL immobilization", 《CARBOHYDRATE POLYMERS》 * |
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