CN107694533A - A kind of polypyrrole load volcanic ash compound adsorbent and preparation method and application - Google Patents

A kind of polypyrrole load volcanic ash compound adsorbent and preparation method and application Download PDF

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Publication number
CN107694533A
CN107694533A CN201710657596.6A CN201710657596A CN107694533A CN 107694533 A CN107694533 A CN 107694533A CN 201710657596 A CN201710657596 A CN 201710657596A CN 107694533 A CN107694533 A CN 107694533A
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China
Prior art keywords
volcanic ash
compound adsorbent
polypyrrole
load
ash compound
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CN201710657596.6A
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赵迎新
王亚舒
季民
李先真
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Tianjin University
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Tianjin University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26Synthetic macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses a kind of polypyrrole load volcanic ash compound adsorbent and preparation method and application, preparation method to be:Volcanic ash and pyrroles's aqueous solution are mixed;Concussion reaction 30~40 minutes, ferric chloride aqueous solutionses are added, concussion reaction 24 hours, are filtered, washing, reject filtrate, drying, obtain polypyrrole load volcanic ash compound adsorbent.The polypyrrole load volcanic ash compound adsorbent of the present invention, its specific surface area is big, and effective adsorption site is more, and its clearance to phosphorus improves 6~8 times compared with natural volcanic ash;The polypyrrole load volcanic ash compound adsorbent of the present invention has good conduction and zwitterion adsorption capacity, therefore using the electrochemical properties of conducting polymer, electric field-enhanced absorption is realized, polypyrrole of the invention load volcanic ash compound adsorbent raw material is easy to get, and cost is low.

Description

A kind of polypyrrole load volcanic ash compound adsorbent and preparation method and application
Technical field
The present invention relates to technical field of water pollution treatment, prepared by specifically a kind of polypyrrole load volcanic ash compound adsorbent Method and application.
Background technology
Phosphorus is closely bound up with our life as a kind of very important element.Either in agricultural or industry, phosphorus It is obtained for and is widely applied, such as fertilizer and detergent.Synthesized newly in addition, the growth and breeding of life entity is also required to substantial amounts of phosphorus Life necessary material.However, the use of phosphorus generates many problems, when phosphorus is discharged into water environment, serious richness can be caused Nutrient laden phenomenon.《Urban wastewater treatment firm pollutant emission standard》(GB18918-2002) in one-level emission standard A, the finger of phosphorus It is designated as total phosphorus 0.5mg/L;Tianjin new landmark《Urban wastewater treatment firm pollutant emission standard》(DB12/599-2015) one-level Total phosphorus index is reduced to 0.3mg/L as defined in emission standard A.On the other hand, due to《Ten, water》Appearance, nationwide inner city Town sewage drainage standard proposes mark work and carried out.Country formulates different standards according to different regions, different basins, and water outlet refers to Mark improves will the China of covering more than half to the area of ground Table IV class water body.And total phosphorus index as defined in ground Table IV water body standard is also 0.3mg/L.Therefore, the inevitable requirement that deep phosphorous removal processing is sewage disposal under the new situation is carried out to sewage disposal plant effluent.
The method for being presently used for phosphorus in water removal has a lot, and absorption method has device simple, and safe operation, cost is cheap, Effect stability, secondary pollution is small, and adsorbent repeats the advantages that utilizing, therefore has good application prospect and development space. The active charcoal of currently used adsorbent, mineral-type material, waste agronomic crop material etc., although most of material can be certain Degree ground Phosphate Sorption, but the absorption property of most natural materials is poor, desorption and regeneration rate is low, and adaptive capacity to environment is poor, it is difficult to Applied directly as adsorbent.Adsorption effect of activated carbon in water is preferable, but its is costly, it is difficult to realizes industrial big rule Mould application;Mineral material, such as zeolite, bentonite, montmorillonite, rich reserves are cheap, but natural minerals adsorb Measure relatively low.Waste agronomic crop material, such as stalk, rice husk, jujube core etc., material is easy to get, cheap, but adsorption capacity is low, and one As need charcoal burn etc. pre-treatment.
Volcanic ash is earth natural material caused by activity naturally, and cheap in China's rich reserves, it is internal more Hole, surface hydrophilicity is strong, has good absorption property.Therefore, need a kind of can be prepared using volcanic ash badly and have good suction concurrently The technology of the compound adsorbent of attached characteristic and electrochemical properties energy.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, there is provided a kind of high-efficiency and economic, be provided simultaneously with characterization of adsorption and The polypyrrole load volcanic ash compound adsorbent of electrochemical properties.
Second object of the present invention is to provide a kind of preparation method of polypyrrole load volcanic ash compound adsorbent.
Third object of the present invention is to provide a kind of application of polypyrrole load volcanic ash compound adsorbent.
Technical scheme is summarized as follows:
A kind of preparation method of polypyrrole load volcanic ash compound adsorbent, comprises the following steps:
(1) volcanic ash and pyrroles's aqueous solution are mixed;
(2) concussion reaction 30~40 minutes, ferric chloride aqueous solutionses is added, concussion reaction 2-4 hours, are filtered, washing, are abandoned Except filtrate, drying, polypyrrole load volcanic ash compound adsorbent is obtained.
Step (1) is preferably:In proportion, it is 0.1-1M pyrroles's aqueous solution by 2 grams of volcanic ash and 10-50mL concentration, mixes It is even.
Step (2) is preferably:Concussion reaction 30~40 minutes, add the tri-chlorination molten iron that 10-50mL concentration is 0.1-1M Solution, concussion reaction 2-4 hours, filter, washing, reject filtrate, drying, obtain polypyrrole load volcanic ash compound adsorbent.
The aperture of filter membrane used in filtering is preferably 0.45 micron.
Preferably, washing is to be washed successively with deionized water and methanol.
Polypyrrole load volcanic ash compound adsorbent prepared by the above method.
The application of above-mentioned polypyrrole load volcanic ash compound adsorbent phosphorus in phosphorus-containing wastewater solution is adsorbed.
Advantages of the present invention:
The polypyrrole load volcanic ash compound adsorbent of the present invention, its specific surface area is big, and effective adsorption site is more, sees figure 1b, 13.34mg/g is increased to from 0.29mg/g to the adsorbance of phosphorus, its clearance to phosphorus improves 6~8 times;
The polypyrrole load volcanic ash compound adsorbent of the present invention has good conduction and zwitterion adsorption capacity, because This realizes electric field-enhanced absorption using the electrochemical properties of conducting polymer, and current density is from 0-29.4A/m2, polypyrrole bears The Phosphate Adsorption capacity boost of volcanic rock composite 29.8% is carried, sees Fig. 2.
The polypyrrole load volcanic ash compound adsorbent raw material of the present invention is easy to get, and cost is low.
Brief description of the drawings
Fig. 1 a are raw material volcanic ash surface morphology characteristics figure;
Fig. 1 b are that polypyrrole prepared by embodiment 1 loads volcanic ash compound adsorbent surface morphology characteristics figure.
Fig. 2 is the influence figure that the polypyrrole that extra electric field is prepared to embodiment 1 loads volcanic ash composite adsorption capacity.
Embodiment
Below by specific embodiment, the present invention is further illustrated.
Embodiment 1
A kind of preparation method of polypyrrole load volcanic ash compound adsorbent, comprises the following steps:
(1) it is 0.2M pyrroles's aqueous solution by 1 gram of volcanic ash and 20mL concentration, mixes;
(2) concussion reaction 30 minutes, the ferric chloride aqueous solutionses that 20mL concentration is 0.5M is added, concussion reaction 3 hours, are used Aperture is 0.45 micron of membrane filtration, is washed with deionized water and methanol, reject filtrate, is dried 24 hours at 105 DEG C successively, Obtain polypyrrole load volcanic ash compound adsorbent.
Obtained polypyrrole load volcanic ash compound adsorbent is used for the processing of phosphorus-containing wastewater, comprised the following steps that:
It is 43.9mg/L to weigh polypyrrole load volcanic ash compound adsorbent 0.25g input 50ml biphosphates potassium concns In the aqueous solution of (phosphorus concentration 10mg/l), it is 25 DEG C to control constant temperature oscillator temperature, reacts 2 hours, solution after reaction is used 0.45 micron membrane filter filters, and the phosphorus concentration after detection reaction in solution, measures its clearance to phosphorus as 76.9%.
Embodiment 2
A kind of preparation method of polypyrrole load volcanic ash compound adsorbent, comprises the following steps:
(1) it is 0.1M pyrroles's aqueous solution by 2 grams of volcanic ash and 50mL concentration, mixes;
(2) concussion reaction 35 minutes, the ferric chloride aqueous solutionses that 50mL concentration is 0.1M is added, concussion reaction 2 hours, are used Aperture is 0.45 micron of membrane filtration, is washed with deionized water and methanol, reject filtrate, is dried 24 hours at 105 DEG C successively, Obtain polypyrrole load volcanic ash compound adsorbent.
Obtained polypyrrole load volcanic ash compound adsorbent is used for the processing of phosphorus-containing wastewater, comprised the following steps that:
It is 219.5mg/l to weigh polypyrrole load volcanic ash compound adsorbent 0.15g input 50ml biphosphates potassium concns In the aqueous solution of (phosphorus concentration 50mg/l), it is 25 DEG C to control constant temperature oscillator temperature, reacts 2 hours, solution after reaction is used 0.45 micron membrane filter filters, and the phosphorus concentration after detection reaction in solution, measures its clearance to phosphorus as 52.3%.
Embodiment 3
A kind of preparation method of polypyrrole load volcanic ash compound adsorbent, comprises the following steps:
(1) it is 1M pyrroles's aqueous solution by 2 grams of volcanic ash and 10mL concentration, mixes;
(2) concussion reaction 40 minutes, the ferric chloride aqueous solutionses that 10mL concentration is 1M is added, concussion reaction 4 hours, use hole Footpath is 0.45 micron of membrane filtration, is washed successively with deionized water and methanol, reject filtrate, dries 24 hours, obtain at 105 DEG C Volcanic ash compound adsorbent is loaded to polypyrrole.
Obtained polypyrrole load volcanic ash compound adsorbent is used for the processing of phosphorus-containing wastewater, comprised the following steps that:
It is 219.5mg/l to weigh polypyrrole load volcanic ash compound adsorbent 0.1g input 50ml biphosphates potassium concns In the aqueous solution of (phosphorus concentration 50mg/l), it is 25 DEG C to control constant temperature oscillator temperature, reacts 2 hours, solution after reaction is used 0.45 micron membrane filter filters, and the phosphorus concentration after detection reaction in solution, measures its clearance to phosphorus as 90.3%.
Under conditions of without departing substantially from spirit or essential attributes of the present invention, the link such as appropriate change condition route, which is realized, to be belonged to The present invention.And it is to be understood that embodiment is exemplary, it is non-limiting, therefore person skilled can not carry on the back Methods and techniques route of the present invention is modified or reconfigured from present invention, spirit and scope, is come real Now final technology of preparing belongs to the present invention.In addition, all similar replacements carried out based on the present invention and change pair Those skilled in the art easily realize, therefore they are considered as belonging to present invention, in spirit and scope.

Claims (7)

  1. A kind of 1. preparation method of polypyrrole load volcanic ash compound adsorbent, it is characterized in that comprising the following steps:
    (1) volcanic ash and pyrroles's aqueous solution are mixed;
    (2) concussion reaction 30~40 minutes, ferric chloride aqueous solutionses is added, concussion reaction 2-4 hours, are filtered, washing, reject filter Liquid, drying, obtain polypyrrole load volcanic ash compound adsorbent.
  2. 2. according to the method for claim 1, it is characterized in that the step (1) is:In proportion, by 2 grams of volcanic ash and 10- 50mL concentration is 0.1-1M pyrroles's aqueous solution, is mixed.
  3. 3. according to the method for claim 1, it is characterized in that the step (2) is:Concussion reaction 30~40 minutes, add 10-50mL concentration is 0.1-1M ferric chloride aqueous solutionses, concussion reaction 2-4 hours, is filtered, washing, reject filtrate, drying, Obtain polypyrrole load volcanic ash compound adsorbent.
  4. 4. the method according to claim 1 or 3, it is characterized in that the aperture of filter membrane used in filtering is 0.45 micron.
  5. 5. the method according to claim 1 or 3, it is characterized in that washing is to be washed successively with deionized water and methanol.
  6. 6. polypyrrole load volcanic ash compound adsorbent prepared by one of claim 1-5 method.
  7. 7. the application of polypyrrole load volcanic ash compound adsorbent phosphorus in phosphorus-containing wastewater solution is adsorbed of claim 6.
CN201710657596.6A 2017-08-03 2017-08-03 A kind of polypyrrole load volcanic ash compound adsorbent and preparation method and application Pending CN107694533A (en)

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Cited By (2)

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CN110479221A (en) * 2019-08-30 2019-11-22 天津大学 A kind of preparation method and application of red mud/polypyrrole composite adsorbing material
CN113042013A (en) * 2021-03-26 2021-06-29 陕西科技大学 Polypyrrole modified bentonite adsorption material, preparation method and application

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479221A (en) * 2019-08-30 2019-11-22 天津大学 A kind of preparation method and application of red mud/polypyrrole composite adsorbing material
CN113042013A (en) * 2021-03-26 2021-06-29 陕西科技大学 Polypyrrole modified bentonite adsorption material, preparation method and application

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