CN106179249A - A kind of preparation method of attapulgite cellulose composite adsorption microsphere - Google Patents

A kind of preparation method of attapulgite cellulose composite adsorption microsphere Download PDF

Info

Publication number
CN106179249A
CN106179249A CN201610701749.8A CN201610701749A CN106179249A CN 106179249 A CN106179249 A CN 106179249A CN 201610701749 A CN201610701749 A CN 201610701749A CN 106179249 A CN106179249 A CN 106179249A
Authority
CN
China
Prior art keywords
attapulgite
cellulose
microsphere
ionic liquid
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610701749.8A
Other languages
Chinese (zh)
Other versions
CN106179249B (en
Inventor
苗长林
袁振宏
庄新姝
吕鹏梅
王忠铭
王琼
谭雪松
亓伟
余强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Institute of Energy Conversion of CAS
Original Assignee
Guangzhou Institute of Energy Conversion of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Institute of Energy Conversion of CAS filed Critical Guangzhou Institute of Energy Conversion of CAS
Priority to CN201610701749.8A priority Critical patent/CN106179249B/en
Publication of CN106179249A publication Critical patent/CN106179249A/en
Application granted granted Critical
Publication of CN106179249B publication Critical patent/CN106179249B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B01J20/24Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • 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
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016Particle form
    • B01J20/28021Hollow particles, e.g. hollow spheres, microspheres or cenospheres
    • 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
    • C02F1/288Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered

Landscapes

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

Abstract

The invention discloses the preparation method of a kind of attapulgite cellulose composite adsorption microsphere, the method includes three below step: the pretreatment of attapulgite and surface modification;Prepared by ionic liquid cellulose solution;The preparation of attapulgite cellulose composite adsorption microsphere.Preparation process is simple and convenient, the ion liquid solvent safety non-toxic used, the attapulgite cellulose microsphere porous of preparation, dispersibility, biocompatibility and Heat stability is good, have high adsorption capacity to water pollutant, adsorption capacity is big, removal efficiency is high, stable in properties, it is easy to the advantages such as recovery;Solve attapulgite absorbability poor, reclaim difficulty; the problems such as cellulose adsorbent mechanical strength is weak, heat stability is low; raw material sources are extensive simultaneously; cheap; not producing secondary pollution, make full use of cellulose, attapulgite regenerated resources, practical value is high; can be used for the advanced treating of water pollutant, solve energy crisis and problem of environmental pollution.

Description

A kind of preparation method of attapulgite cellulose composite adsorption microsphere
Technical field:
The present invention relates to sewage treatment area, be specifically related to the preparation side of a kind of attapulgite cellulose composite adsorption microsphere Method.
Background technology:
Along with the high speed development of modern society, the environmental pollution that industrial wastewater and sanitary sewage etc. cause makes ecological environment meet with To heavy damage.How economical, administer dirty water pollutant efficiently, oneself becomes environmental protection and the extremely urgent task of chemical industry One of.
Attapulgite has the layer chain crystal structure of uniqueness and nano level fibrous crystal form, and inner duct is flourishing, than Surface area is relatively big, and these impart the stronger absorption property of attapulgite and ion-exchange performance.Its to the heavy metal in waste water from Organic pollution in son and water, makees as benzene-like compounds, phenolic compound, Crude Oil & Petroleum Products etc. have the strongest absorption With.Additionally attapulgite itself is nontoxic, harmless, storage capacity is high, with low cost in nature, technological operation letter in water treatment procedure Just, adsorption efficiency is high, nonstaining property and the advantage such as secondary pollution is few, makes attapulgite at the process table of trade effluent and sanitary sewage Reveal the application potential of excellence.But attapulgite is as a kind of natural clay, when attapulgite is applied in waste water, water and organic Pollutant are when attapulgite apparent competitive adsorbs, and hydrone is preferentially adsorbed, and occupies the avtive spot of attapulgite channel surfaces, makes Obtain it low to organic pollutant removal rate, limit its application in adsorbing domain.Additionally due to its surface can be high so that concavo-convex Rod is easily assembled agglomerating, and the attapulgite specific surface area after gathering has reduced, thus limits its absorbability, and its powder Certain difficulty is there is also in shape form recovery problem after a procedure.
Cellulose is that nature contains the abundantest Renewable resource, is a kind of natural polysaccharide molecule, nontoxic, can be biological Degraded, water-resistance is strong, has the hydrophilic of height, good biocompatibility, suitable loose structure, extremely low non-specific suction Attached performance, containing numerous amino and hydroxyl on its macromolecular chain, has absorption, flocculation to metal ion, polar organic compound Effect, is a kind of good adsorbent base material.The adsorbent prepared with cellulose is widely used in the richness of each metal ion species Collection separates, the removing etc. of the isolated and purified and Wastewater Dyes of protein;But due to the intermolecular strong hydrogen of native cellulose Key effect, forms the finest and close structure, causes the difficulty that cellulosic material is processed, and cellulose adsorbent exists mechanical strength The problems such as weak, heat stability is low.
Summary of the invention:
It is an object of the invention to provide the preparation method of a kind of attapulgite cellulose composite adsorption microsphere, preparation process is simple Convenient, the ion liquid solvent safety non-toxic of use, the attapulgite cellulose microsphere porous of preparation, dispersibility, biocompatibility And Heat stability is good, water pollutant is had high adsorption capacity, adsorption capacity is big, removal efficiency is high, stable in properties, it is easy to return The advantages such as receipts;Solving that attapulgite absorbability is poor, reclaim difficulty, cellulose adsorbent mechanical strength is weak, heat stability is low etc. asks Topic, raw material sources are extensive simultaneously, cheap, do not produce secondary pollution, make full use of cellulose, attapulgite regenerated resources, real With being worth height, can be used for the advanced treating of water pollutant, solve energy crisis and problem of environmental pollution.
The present invention is achieved by the following technical programs:
A kind of preparation method of attapulgite cellulose composite adsorption microsphere, the method includes three below step:
A, the pretreatment of attapulgite and surface modification: powder body attapulgite mass fraction is that the dilute hydrochloric acid of 5-10% soaks 8- After 12h, washing is to neutral, is distributed in ethanol and mixed solution that water volume ratio is 9:1, adds silane coupler, at 40-50 Adsorbing after ultrasonic 50min at DEG C, adsorbed product is separated is dried to obtain silane-modified attapulgite at 110 DEG C after purification, grinds Standby;Described powder body attapulgite is 4: 1~6: 1 with the mass ratio of silane coupler;
B, the preparation of ionic liquid cellulose solution: in the ionic liquid of 100 weight portions, add the fibre of 2~6 weight portions Dimension element, 90~110 DEG C of stirring mixing are completely dissolved to cellulose, obtain ionic liquid cellulose solution;
C, the preparation of attapulgite cellulose composite adsorption microsphere: add in the ionic liquid cellulose solution that step b obtains The silane-modified attapulgite obtained in step a, silane-modified attapulgite quality is ionic liquid cellulose solution quality 0.2-0.4 times, 90~100 DEG C, after stirring 20~30 minutes under 80~200rpm rotating speeds, add oil phase and surfactant, oil With the volume ratio 4: 1~6: 1 of ionic liquid cellulose solution, surfactant is 1: 40~1: 100 with the mass ratio of oil phase, Stir 15~20 minutes, form inverse suspension system, by programmed cooling to 30~50 DEG C, add firming agent, the body of firming agent Amass 2~3 times for ionic liquid cellulose solution volume, be kept stirring for 20 minutes, form attapulgite cellulose composite adsorption micro- Ball;Being washed with deionized and soak, hygrometric state sieves, and obtains attapulgite cellulose composite adsorption microsphere.
Described programmed cooling refers to the speed of every 10min cooling 5 DEG C.
The preparation method of described attapulgite cellulose composite adsorption microsphere, specifically includes following steps:
A, attapulgite obtain, through extruding, shear, pulverizing, the powder body that granularity is 200 mesh, are the dilute of 5-10% with mass fraction Soak with hydrochloric acid 8-12h is washed with deionized after being precipitated to neutrality again and is distributed to ethanol and water volume ratio is the mixed solution of 9:1 In, stirring adds silane coupler, ultrasonic 50min at 40-50 DEG C, 50 DEG C of stirring and adsorbing 4h, adsorbed product is divided through sucking filtration Remove unnecessary silane coupler with toluene, dehydrated alcohol and deionized water wash successively after from, be dried at 110 DEG C, obtain Silane-modified attapulgite, grinds standby;Described powder body attapulgite is 4: 1~6: 1 with the mass ratio of silane coupler;
B, the preparation of ionic liquid cellulose solution: in the ionic liquid of 100 weight portions, add the fibre of 2~6 weight portions Dimension element, 90~110 DEG C of stirring mixing are completely dissolved to cellulose, and speed of agitator is 80~200rpm, obtains ionic liquid fiber Cellulose solution;
C, the preparation of attapulgite cellulose composite adsorption microsphere: add in the ionic liquid cellulose solution that step b obtains The silane-modified attapulgite obtained in step a, silane-modified attapulgite quality is ionic liquid cellulose solution quality 0.2-0.4 times, 90~100 DEG C, after stirring 20~30 minutes under 80~200rpm rotating speeds, add oil phase and surfactant, oil With the volume ratio 4: 1~6: 1 of ionic liquid cellulose solution, surfactant is 1: 40~1: 100 with the mass ratio of oil phase, Stir 15~20 minutes under 300~500rpm rotating speeds, form inverse suspension system, with the speed cooling of every 10min cooling 5 DEG C To 30~50 DEG C, cellulose solution condenses balling-up;Adding firming agent, the volume of firming agent is ionic liquid cellulose solution volume 2~3 times;After 5 minutes, rotating speed reduces to 200rpm, is kept stirring for 20 minutes, and cellulose solution solidifies rapidly, forms attapulgite fine Dimension element composite adsorption microsphere, room temperature to be down to, attapulgite cellulose composite adsorption microsphere is filtered out from reactant liquor, spends Ionized water washs, and then microsphere is soaked 48 hours in deionized water;Hygrometric state sieves, and obtains attapulgite cellulose composite adsorption Microsphere.
In step a, described silane coupler is selected from γ-(2,3-glycidoxy) propyl trimethoxy silicane, N-2 One in (aminoethyl) 3-aminopropyl trimethoxysilane, vinyltrimethoxy silane.
In step a, after granularity is the dilute hydrochloric acid that powder body attapulgite mass fraction the is 5-10% immersion 8-12h of 200 mesh, Attapulgite obtains activating in fluffy similar colloidal sol form, and washing is carried out at surface modification through silane coupler to neutrality Reason, attapulgite surface is become appropriateness lipophile from total hydrophilic, strengthens dispersibility in organic solvent, decrease attapulgite Agglomeration, beneficially organic pollution attapulgite apparent competitive adsorb.
In step b, described ionic liquid is 1-butyl-3-Methylimidazole. villaumite or 1-pi-allyl-3-Methylimidazole. vinegar Hydrochlorate;Described cellulose one in paper pulp, absorbent cotton, purified cotton or microcrystalline Cellulose.
Native cellulose has the construction features that degree of crystallinity is high, intermolecular and intramolecule contains a large amount of hydrogen bond so that it is difficult It is dissolved in water and common are machine solvent.Ionic liquid is the green solvent of a kind of novel cellulose, can effectively destroy cellulose Crystal structure, reduces its degree of crystallinity, is possible not only to effectively dissolve cellulose, it is also possible to provide good reaction ring for cellulose Border.
In step c, described surfactant is Tween 80, Span 85 or its mixture;Described oil phase be pump oil, Mineral oil, paraffin oil or Oleum Arachidis hypogaeae semen;Described firming agent is water, ethanol, acetone or its mixture.
Beneficial effects of the present invention is as follows:
(1) present invention utilizes solion directly to dissolve cellulose as solvent, and technique is simple, nontoxic, environmental pollution Little, and can again recycle.
(2) by silane coupler, attapulgite is carried out surface modification, makes attapulgite surface polarity reduce, surface nature by Total hydrophilic becomes appropriateness lipophile, strengthens dispersibility in organic solvent, decreases the agglomeration of attapulgite, is beneficial to Organic pollution adsorbs at attapulgite apparent competitive.
(3) modified attapulgite is coupled by the present invention with two kinds of adsorbing materials of cellulose of ion liquid dissolving, produces collaborative Effect, enhances attapulgite and the intermolecular compatibility of organic cellulose, improves the adhesion of molecular interface, promote fiber Element microsphere shapes, and is effectively improved absorption property;In addition attapulgite component is embedded in the network structure of regenerated cellulose, is effectively improved The mechanical strength of microsphere and heat stability;Meanwhile, cellulose provides good carrier function for attapulgite, avoids recessed further Convex rod is assembled, the beneficially recovery of attapulgite adsorbent.
(4) attapulgite is nontoxic, harmless, storage capacity is high, with low cost;Cellulose is widely present in green plants, is certainly The Renewable resource that so boundary is the abundantest, makes full use of attapulgite, cellulose not only conforms with the requirement of " Green Chemistry ", it is also possible to Solve the impact that environmental pollution brings.Carry out compatibility by host materials such as cellulose and attapulgites, formed and have porous knot concurrently Structure and compared with the adsorbing material of strong pollutant absorbability so as to get adsorbent there is high adsorption capacity, adsorption capacity is big, remove The advantage that efficiency is high, stable in properties, it is easy to recycling.
In a word, preparation process of the present invention is simple and convenient, the ion liquid solvent safety non-toxic of use, by modified attapulgite with The two kinds of adsorbing material couplings of the cellulose of ion liquid dissolving, generation cooperative effect, the attapulgite cellulose microsphere porous of preparation, Dispersibility, biocompatibility and Heat stability is good, have to water pollutant that high adsorption capacity, adsorption capacity be big, removal efficiency High, stable in properties, it is easy to the advantages such as recovery;Solve attapulgite absorbability poor, reclaim difficulty, cellulose adsorbent mechanical strength The problems such as weak, heat stability is low, raw material sources are extensive simultaneously, cheap, do not produce secondary pollution, make full use of cellulose, Attapulgite regenerated resources, practical value is high, can be used for the advanced treating of water pollutant, solves energy crisis and environmental pollution Problem.
Detailed description of the invention:
The following is and the present invention is further illustrated rather than limitation of the present invention.
Embodiment 1:
By attapulgite through extruding, shear, pulverizing, obtaining the powder body that granularity is 200 mesh, powder body mass fraction is 5% Dilute hydrochloric acid soaks 8h, is then precipitated to neutrality with deionized water cyclic washing, takes 20g and be distributed to the mixing of 100mL second alcohol and water In solution, wherein ethanol and water volume ratio are 9:1, add 5g γ-(2,3-glycidoxy) propyl group front three the most while stirring TMOS coupling agent, ultrasonic 50min at 40 DEG C, then 50 DEG C of stirring and adsorbing 4h, adsorbed product depends on after sucking filtration separates Secondary 100ml toluene, dehydrated alcohol and deionized water wash remove unnecessary silane coupler, be dried, obtain silicon at 110 DEG C Alkane is attapulgite modified, grinds standby.
Adding 1-butyl-3-methyl-imidazoles villaumite 100 grams in flask, paper pulp 2 grams, at 90 DEG C, 80rpm rotating speed stirs Mix, be completely dissolved to cellulose and obtain ionic liquid cellulose solution.
By the modified attapulgite that the quality of above-mentioned preparation is ionic liquid cellulose solution quality 0.2 times, it is distributed to ion In liquid fiber cellulose solution, at 90 DEG C, after stirring 20 minutes under 80rpm rotating speed, (oil phase is pump for addition oil phase and surfactant Oil, surfactant are Tween 80), oil phase is 4: 1 with the volume ratio of ionic liquid cellulose solution, surfactant and oil phase Mass ratio be 1: 40, stir 15 minutes under 300rpm rotating speed, form inverse suspension system, lower the temperature the speed of 5 DEG C with every 10 clocks Rate is cooled to 30 DEG C, and cellulose solution condenses balling-up;(firming agent is water, and volume is that ionic liquid cellulose is molten to add firming agent Long-pending 2 times of liquid), after 5 minutes, rotating speed reduces to 200rpm, is kept stirring for 20 minutes, and cellulose solution solidifies rapidly, is formed concavo-convex Rod cellulose composite adsorption microsphere, temperature is down to room temperature, filtered out by microsphere from reactant liquor, with 1~2 times of volume go from Sub-water washs 3~6 times, then attapulgite cellulose composite adsorption microsphere is soaked 48 hours in deionized water;By attapulgite Cellulose composite adsorption microsphere hygrometric state sieves, and obtains attapulgite cellulose composite adsorption microsphere.
Embodiment 2:
By attapulgite through extruding, shear, pulverizing, obtaining the powder body that granularity is 200 mesh, powder body mass fraction is 10% Dilute hydrochloric acid soaks 12h, is then precipitated to neutrality with deionized water cyclic washing, takes 20g and be distributed to the mixing of 100mL second alcohol and water In solution, wherein ethanol and water volume ratio are 9:1, add 4g N-2 (aminoethyl) 3-aminopropyl trimethoxy the most while stirring Silane coupler, ultrasonic 50min at 50 DEG C, then 50 DEG C of stirring and adsorbing 4h, adsorbed product is used after sucking filtration separates successively 100ml toluene, dehydrated alcohol and deionized water wash remove unnecessary silane coupler, be dried, obtain silane and change at 110 DEG C Property attapulgite, grinds standby.
Addition 1-pi-allyl-3-Methylimidazole. acetate 100 grams in flask, absorbent cotton 6 grams, at 100 DEG C, 200rpm Rotating speed stirs, and is completely dissolved to cellulose and obtains ionic liquid cellulose solution.
By the modified attapulgite that the quality of above-mentioned preparation is ionic liquid cellulose solution quality 0.4 times, it is distributed to ion In liquid fiber cellulose solution, at 100 DEG C, after stirring 30 minutes under 200rpm rotating speed, (oil phase is for addition oil phase and surfactant Mineral oil, surfactant are Span 85), oil phase is 6: 1 with the volume ratio of ionic liquid cellulose solution, surfactant It is 1: 100 with the mass ratio of oil phase, stirs 20 minutes under 500rpm rotating speed, form inverse suspension system, with every 10 clock coolings 5 DEG C speed be cooled to 50 DEG C, cellulose solution condense balling-up;(firming agent is ethanol, and volume is ionic liquid to add firming agent 3 times of cellulose solution volume), after 5 minutes, rotating speed reduces to 200rpm, is kept stirring for 20 minutes, and cellulose solution solidifies rapidly, Forming attapulgite cellulose composite adsorption microsphere, temperature is down to room temperature, is filtered out by microsphere from reactant liquor, with 1~2 times of body Long-pending deionized water wash 3~6 times, then soak 48 hours in deionized water by attapulgite cellulose composite adsorption microsphere; Attapulgite cellulose composite adsorption microsphere hygrometric state is sieved, obtains attapulgite cellulose composite adsorption microsphere.
Embodiment 3:
By attapulgite through extruding, shear, pulverizing, obtaining the powder body that granularity is 200 mesh, powder body mass fraction is 8% Dilute hydrochloric acid soaks 10h, is then precipitated to neutrality with deionized water cyclic washing, takes 20g and be distributed to the mixing of 100mL second alcohol and water In solution, wherein ethanol and water volume ratio are 9:1, add 3.3g vinyltrimethoxy silane coupling agent the most while stirring, Ultrasonic 50min at 50 DEG C, then 50 DEG C of stirring and adsorbing 4h, adsorbed product uses 100ml toluene, nothing after sucking filtration separates successively Water-ethanol and deionized water wash remove unnecessary silane coupler, be dried, obtain silane-modified attapulgite at 110 DEG C, Grind standby.
Addition 1-pi-allyl-3-Methylimidazole. acetate 100 grams in flask, purified cotton 5 grams, at 100 DEG C, 150rpm Rotating speed stirs, and is completely dissolved to cellulose and obtains ionic liquid cellulose solution.
By the modified attapulgite that the quality of above-mentioned preparation is ionic liquid cellulose solution quality 0.3 times, it is distributed to ion In liquid fiber cellulose solution, at 95 DEG C, after stirring 25 minutes under 150rpm rotating speed, (oil phase is for addition oil phase and surfactant Paraffin oil, surfactant are Span 85), oil phase is 5: 1 with the volume ratio of ionic liquid cellulose solution, surfactant It is 1: 60 with the mass ratio of oil phase, stirs 20 minutes under 400rpm rotating speed, form inverse suspension system, with every 10 clock coolings 5 DEG C speed be cooled to 40 DEG C, cellulose solution condense balling-up;(firming agent is acetone, and volume is ionic liquid to add firming agent 3 times of cellulose solution volume), after 5 minutes, rotating speed reduces to 200rpm, is kept stirring for 20 minutes, and cellulose solution solidifies rapidly, Forming attapulgite cellulose composite adsorption microsphere, temperature is down to room temperature, is filtered out by microsphere from reactant liquor, with 1~2 times of body Long-pending deionized water wash 3~6 times, then soak 48 hours in deionized water by attapulgite cellulose composite adsorption microsphere; Attapulgite cellulose composite adsorption microsphere hygrometric state is sieved, obtains attapulgite cellulose composite adsorption microsphere.
Embodiment 4:
By attapulgite through extruding, shear, pulverizing, obtaining the powder body that granularity is 200 mesh, powder body mass fraction is 7% Dilute hydrochloric acid soaks 11h, is then precipitated to neutrality with deionized water cyclic washing, takes 20g and be distributed to the mixing of 100mL second alcohol and water In solution, wherein ethanol and water volume ratio are 9:1, add 4.4g N-2 (aminoethyl) 3-aminopropyl trimethoxy the most while stirring Base silane coupling agent, ultrasonic 50min at 45 DEG C, then 50 DEG C of stirring and adsorbing 4h, adsorbed product through sucking filtration separate after successively Remove unnecessary silane coupler with 100ml toluene, dehydrated alcohol and deionized water wash, be dried at 110 DEG C, obtain silane Attapulgite modified, grind standby.
Addition 1-butyl-3-Methylimidazole. villaumite 100 grams in flask, microcrystalline Cellulose 4 grams, at 100 DEG C, 100rpm Rotating speed stirs, and is completely dissolved to cellulose and obtains ionic liquid cellulose solution.
By the modified attapulgite that the quality of above-mentioned preparation is ionic liquid cellulose solution quality 0.4 times, it is distributed to ion In liquid fiber cellulose solution, at 95 DEG C, after stirring 25 minutes under 180rpm rotating speed, (oil phase is for addition oil phase and surfactant Oleum Arachidis hypogaeae semen, surfactant are Tween 80), the volume ratio of oil phase and ionic liquid cellulose solution is 6: 1, surfactant with The mass ratio of oil phase is 1: 40, stirs 20 minutes under 450rpm rotating speed, forms inverse suspension system, lowers the temperature 5 DEG C with every 10 clocks Speed be cooled to 30 DEG C, cellulose solution condense balling-up;Addition volume is consolidating of 3 times of ionic liquid cellulose solution volume Agent (firming agent be volume ratio be ethanol and the acetone mixture of 1:3), after 5 minutes, rotating speed reduces to 200rpm, is kept stirring for 20 Minute, cellulose solution solidifies rapidly, forms attapulgite cellulose composite adsorption microsphere, and temperature is down to room temperature, by microsphere from instead Answer in liquid and filter out, with the deionized water wash 3 of 1~2 times of volume~6 times, then by micro-for attapulgite cellulose composite adsorption Ball soaks 48 hours in deionized water;Attapulgite cellulose composite adsorption microsphere hygrometric state is sieved, obtains attapulgite cellulose Composite adsorption microsphere.
Embodiment 5:
By attapulgite through extruding, shear, pulverizing, obtaining the powder body that granularity is 200 mesh, powder body mass fraction is 6% Dilute hydrochloric acid soaks 9h, is then precipitated to neutrality with deionized water cyclic washing, takes 20g and be distributed to the mixing of 100mL second alcohol and water In solution, wherein ethanol and water volume ratio are 9:1, add 5g vinyltrimethoxy silane coupling agent the most while stirring, Ultrasonic 50min at 45 DEG C, then 50 DEG C of stirring and adsorbing 4h, adsorbed product after sucking filtration separates successively with 100ml toluene, anhydrous Ethanol and deionized water wash remove unnecessary silane coupler, be dried, obtain silane-modified attapulgite, grind at 110 DEG C Grind standby.
Addition 1-pi-allyl-3-Methylimidazole. acetate 100 grams in flask, microcrystalline Cellulose 5 grams, at 100 DEG C, 150rpm rotating speed stirs, and is completely dissolved to cellulose and obtains ionic liquid cellulose solution.
By the modified attapulgite that the quality of above-mentioned preparation is ionic liquid cellulose solution quality 0.3 times, it is distributed to ion In liquid fiber cellulose solution, at 100 DEG C, after stirring 20 minutes under 150rpm rotating speed, (oil phase is for addition oil phase and surfactant Oleum Arachidis hypogaeae semen, surfactant be mass ratio be the mixture of Tween 80 and the Span 85 of 1:1), oil phase and ionic liquid cellulose The volume ratio of solution is 5: 1, and surfactant is 1: 60 with the mass ratio of oil phase, stirs 20 minutes, shape under 400rpm rotating speed Becoming inverse suspension system, be cooled to 30 DEG C with the speed of every 10 clocks cooling 5 DEG C, cellulose solution condenses balling-up;Adding volume is The firming agent of 3 times of ionic liquid cellulose solution volume (firming agent be volume ratio be ethanol and the acetone mixture of 1:1), 5 After minute, rotating speed reduces to 200rpm, is kept stirring for 20 minutes, and cellulose solution solidifies rapidly, forms the compound suction of attapulgite cellulose Attached microsphere, temperature is down to room temperature, is filtered out by microsphere from reactant liquor, with the deionized water wash 3~6 of 1~2 times of volume Secondary, then attapulgite cellulose composite adsorption microsphere is soaked 48 hours in deionized water;Inhale compound for attapulgite cellulose Attached microsphere hygrometric state sieves, and obtains attapulgite cellulose composite adsorption microsphere.
Embodiment 6:
By attapulgite through extruding, shear, pulverizing, obtaining the powder body that granularity is 200 mesh, powder body mass fraction is 8% Dilute hydrochloric acid soaks 10h, is then precipitated to neutrality with deionized water cyclic washing, takes 20g and be distributed to the mixing of 100mL second alcohol and water In solution, wherein ethanol and water volume ratio are 9:1, add 5g γ-(2,3-glycidoxy) propyl group front three the most while stirring TMOS coupling agent, ultrasonic 50min at 50 DEG C, then 50 DEG C of stirring and adsorbing 4h, adsorbed product depends on after sucking filtration separates Secondary 100ml toluene, dehydrated alcohol and deionized water wash remove unnecessary silane coupler, be dried, obtain silicon at 110 DEG C Alkane is attapulgite modified, grinds standby.
Addition 1-butyl-3-Methylimidazole. villaumite 100 grams in flask, microcrystalline Cellulose 5 grams, at 100 DEG C, 180rpm Rotating speed stirs, and is completely dissolved to cellulose and obtains ionic liquid cellulose solution.
By the modified attapulgite that the quality of above-mentioned preparation is ionic liquid cellulose solution quality 0.3 times, it is distributed to ion In liquid fiber cellulose solution, at 100 DEG C, after stirring 20 minutes under 180rpm rotating speed, (oil phase is for addition oil phase and surfactant Paraffin oil, surfactant be mass ratio be the mixture of Tween 80 and the Span 85 of 1:1), oil phase and ionic liquid cellulose The volume ratio of solution is 5: 1, and surfactant is 1: 80 with the mass ratio of oil phase, stirs 15 minutes, shape under 400rpm rotating speed Becoming inverse suspension system, be cooled to 30 DEG C with the speed of every 10 clocks cooling 5 DEG C, cellulose solution condenses balling-up;Adding volume is The firming agent of 3 times of ionic liquid cellulose solution volume (firming agent be volume ratio be ethanol and the aqueous mixtures of 1:1), 5 points After clock, rotating speed reduces to 200rpm, is kept stirring for 20 minutes, and cellulose solution solidifies rapidly, forms attapulgite cellulose composite adsorption Microsphere, temperature is down to room temperature, filtered out by microsphere from reactant liquor, with the deionized water wash 3 of 1~2 times of volume~6 times, Then attapulgite cellulose composite adsorption microsphere is soaked 48 hours in deionized water;By micro-for attapulgite cellulose composite adsorption Ball hygrometric state sieves, and obtains attapulgite cellulose composite adsorption microsphere.
Embodiment 7: the attapulgite cellulose composite adsorption microsphere present invention prepared is used for pollutant adsorption treatment:
The attapulgite cellulose composite adsorption microsphere prepared with embodiment 1-6 respectively, silane-modified attapulgite, natural do not change Property attapulgite and natural, unmodified cellulose are adsorbent, respectively phenol with initial concentration as 5mg/L, catechol, to benzene Diphenol, methylene blue, methyl orange, copper ion, cadmium ion, lead ion carry out adsorption treatment as pollutant.Concrete grammar is as follows:
Being addition adsorbent in 5mg/L organic pollution to initial concentration, solid-to-liquid ratio is 1g:50mL, with 200r/ at 25 DEG C Min rotating speed constant temperature oscillation absorption 12h, crosses leaching filtrate, records adsorbance, and result sees table 1.
The different adsorbent of table 1 is to pollutant adsorption treatment
The attapulgite cellulose composite adsorption microsphere that as can be seen from Table 1 prepared by embodiment 1-6 is concavo-convex with silane-modified Attapulgite excellent, natural, unmodified is compared with natural, unmodified cellulose, and the removal efficiency of phenols dye thing in water can be improved 3-5 times Above;Water Methylene Blue removal efficiency is up to 97-99%;Methyl orange removal efficiency has also been reached more than 75%;To a huge sum of money The adsorbing and removing belonged to also has better effects, and removal efficiency is between 55-77%;And natural, unmodified attapulgite and natural, unmodified The removal efficiency of pollutant is and reaches more than 35% by cellulose.As can be seen from the above data, the attapulgite that prepared by the present invention Cellulose composite adsorption microsphere absorption property is good, preferable to pollutant removal.
The present invention, by modified attapulgite and cellulose compatibility, obtains having loose structure, the adsorbing medium that specific surface area is big, By learning from other's strong points to offset one's weaknesses, produce cooperative effect, improve the absorption to pollutant, accumulation ability, stable in properties, it is easy to reclaim profit again With;Raw material sources are extensive simultaneously, cheap, do not produce secondary pollution, and practical value is high, can be used for the degree of depth of water pollutant Process.

Claims (5)

1. the preparation method of an attapulgite cellulose composite adsorption microsphere, it is characterised in that the method includes that three below walks Rapid:
A, powder body attapulgite mass fraction are that the dilute hydrochloric acid of 5-10% soaks after 8-12h washing to neutral, be distributed to ethanol and Water volume ratio is in the mixed solution of 9:1, adds silane coupler, adsorbs, adsorbed product at 40-50 DEG C after ultrasonic 50min Separated purification, is dried to obtain silane-modified attapulgite, grinds standby at 110 DEG C;Described powder body attapulgite is with silane coupled The mass ratio of agent is 4: 1~6: 1;
B, in the ionic liquid of 100 weight portions add 2~6 weight portions cellulose, 90~110 DEG C stirring mixing to cellulose It is completely dissolved, obtains ionic liquid cellulose solution;
Adding the silane-modified attapulgite obtained in step a in the ionic liquid cellulose solution that c, step b obtain, silane changes Property attapulgite quality is 0.2-0.4 times of ionic liquid cellulose solution quality, 90~100 DEG C, under 80~200rpm rotating speeds After stirring 20~30 minutes, addition oil phase and surfactant, oil phase and the volume ratio 4: 1~6 of ionic liquid cellulose solution: 1, surfactant is 1: 40~1: 100 with the mass ratio of oil phase, stirs 15~20 minutes, forms inverse suspension system, passes through Programmed cooling, to 30~50 DEG C, adds firming agent, and the volume of firming agent is 2~3 times of ionic liquid cellulose solution volume, protects Hold stirring 20 minutes, form attapulgite cellulose composite adsorption microsphere;Being washed with deionized and soak, hygrometric state sieves, and obtains Attapulgite cellulose composite adsorption microsphere.
The preparation method of attapulgite cellulose composite adsorption microsphere the most according to claim 1, it is characterised in that program drops Temperature refers to the speed of every 10min cooling 5 DEG C.
The preparation method of attapulgite cellulose composite adsorption microsphere the most according to claim 1, it is characterised in that step a In, described silane coupler is selected from γ-(2,3-glycidoxy) propyl trimethoxy silicane, N-2 (aminoethyl) 3-ammonia third One in base trimethoxy silane, vinyltrimethoxy silane.
The preparation method of attapulgite cellulose composite adsorption microsphere the most according to claim 1, it is characterised in that step b In, described ionic liquid is 1-butyl-3-Methylimidazole. villaumite or 1-pi-allyl-3-Methylimidazole. acetate;Described fibre Dimension element one in paper pulp, absorbent cotton, purified cotton or microcrystalline Cellulose.
The preparation method of attapulgite cellulose composite adsorption microsphere the most according to claim 1, it is characterised in that step c In, described surfactant is Tween 80, Span 85 or its mixture;Described oil phase is pump oil, mineral oil, paraffin oil Or Oleum Arachidis hypogaeae semen;Described firming agent is water, ethanol, acetone or its mixture.
CN201610701749.8A 2016-08-22 2016-08-22 A kind of preparation method of concave convex rod cellulose composite adsorption microballoon Expired - Fee Related CN106179249B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610701749.8A CN106179249B (en) 2016-08-22 2016-08-22 A kind of preparation method of concave convex rod cellulose composite adsorption microballoon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610701749.8A CN106179249B (en) 2016-08-22 2016-08-22 A kind of preparation method of concave convex rod cellulose composite adsorption microballoon

Publications (2)

Publication Number Publication Date
CN106179249A true CN106179249A (en) 2016-12-07
CN106179249B CN106179249B (en) 2018-10-02

Family

ID=57523626

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610701749.8A Expired - Fee Related CN106179249B (en) 2016-08-22 2016-08-22 A kind of preparation method of concave convex rod cellulose composite adsorption microballoon

Country Status (1)

Country Link
CN (1) CN106179249B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108620032A (en) * 2018-05-18 2018-10-09 云南圣清环保科技有限公司 A kind of heavy metal absorbent and the preparation method and application thereof
CN111995883A (en) * 2019-05-27 2020-11-27 中国石油化工股份有限公司 Preparation method of metal oxide/hollow microsphere composite filler
CN112023897A (en) * 2020-09-01 2020-12-04 齐鲁工业大学 Preparation method of nanocellulose microspheres with selective adsorption and adsorption application of nanocellulose microspheres to dye wastewater
CN114345303A (en) * 2021-12-29 2022-04-15 北京建工环境修复股份有限公司 Magnetic attapulgite cellulose composite microsphere and preparation method and application thereof
CN115193418A (en) * 2022-07-26 2022-10-18 西北师范大学 Preparation method of polyion liquid/attapulgite hybrid material and application of polyion liquid/attapulgite hybrid material in adsorption of p-nitrophenol
CN115350686A (en) * 2022-08-16 2022-11-18 青海师范大学 Meglumine modified attapulgite, preparation method and application thereof
WO2023123139A1 (en) * 2021-12-29 2023-07-06 北京建工环境修复股份有限公司 Preparation method for composite microspheres, composite microspheres prepared thereby and use
CN116770581A (en) * 2023-08-28 2023-09-19 烟台奥森制动材料有限公司 Method for preparing antioxidant carbon fiber solid felt by adopting metal ion purifying agent
CN117736706A (en) * 2024-02-21 2024-03-22 克拉玛依市义恩技术服务有限责任公司 Water-soluble organic salt weighting agent for drilling fluid and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106955666B (en) * 2017-03-30 2019-10-18 黑龙江大学 A method of biomass magnetism carbosphere is prepared with agriculture and forestry organic waste material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087001A1 (en) * 1982-02-19 1983-08-31 Laporte Industries Limited A process for the manufacture of absorbent materials
CN101279248A (en) * 2008-05-16 2008-10-08 西北师范大学 Modified paligorskite water purification agent and preparation thereof
CN101612540A (en) * 2009-08-06 2009-12-30 浙江大学 A kind of is the method that solvent prepares cellulose microsphere with the ionic liquid
CN102139200A (en) * 2011-01-07 2011-08-03 淮阴工学院 Preparation method of modified attapulgite adsorbent for recovering low-concentration methane in coal mine gas
CN103263896A (en) * 2013-05-30 2013-08-28 新疆大学 Cellulose-based polymer/montmorillonite nano composite adsorption material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087001A1 (en) * 1982-02-19 1983-08-31 Laporte Industries Limited A process for the manufacture of absorbent materials
CN101279248A (en) * 2008-05-16 2008-10-08 西北师范大学 Modified paligorskite water purification agent and preparation thereof
CN101612540A (en) * 2009-08-06 2009-12-30 浙江大学 A kind of is the method that solvent prepares cellulose microsphere with the ionic liquid
CN102139200A (en) * 2011-01-07 2011-08-03 淮阴工学院 Preparation method of modified attapulgite adsorbent for recovering low-concentration methane in coal mine gas
CN103263896A (en) * 2013-05-30 2013-08-28 新疆大学 Cellulose-based polymer/montmorillonite nano composite adsorption material and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
XIAOYU CHEN等: ""Attapulgite Nanofiber-Cellulose Nanocomposite with Core-Shell Structure for Dye Adsorption"", 《INTERNATIONAL JOURNAL OF POLYMER SCIENCE》 *
郑茂松等: "《凹土棒石黏土应用研究》", 30 April 2007 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108620032B (en) * 2018-05-18 2020-12-01 云南圣清环保科技有限公司 Heavy metal adsorbent and preparation method and application thereof
CN108620032A (en) * 2018-05-18 2018-10-09 云南圣清环保科技有限公司 A kind of heavy metal absorbent and the preparation method and application thereof
CN111995883B (en) * 2019-05-27 2021-11-09 中国石油化工股份有限公司 Preparation method of metal oxide/hollow microsphere composite filler
CN111995883A (en) * 2019-05-27 2020-11-27 中国石油化工股份有限公司 Preparation method of metal oxide/hollow microsphere composite filler
CN112023897B (en) * 2020-09-01 2022-06-21 齐鲁工业大学 Preparation method of nanocellulose microspheres with selective adsorption and adsorption application of nanocellulose microspheres to dye wastewater
CN112023897A (en) * 2020-09-01 2020-12-04 齐鲁工业大学 Preparation method of nanocellulose microspheres with selective adsorption and adsorption application of nanocellulose microspheres to dye wastewater
CN114345303A (en) * 2021-12-29 2022-04-15 北京建工环境修复股份有限公司 Magnetic attapulgite cellulose composite microsphere and preparation method and application thereof
WO2023123139A1 (en) * 2021-12-29 2023-07-06 北京建工环境修复股份有限公司 Preparation method for composite microspheres, composite microspheres prepared thereby and use
CN115193418A (en) * 2022-07-26 2022-10-18 西北师范大学 Preparation method of polyion liquid/attapulgite hybrid material and application of polyion liquid/attapulgite hybrid material in adsorption of p-nitrophenol
CN115193418B (en) * 2022-07-26 2023-09-26 西北师范大学 Preparation method of polyion liquid/attapulgite hybrid material and application of polyion liquid/attapulgite hybrid material in adsorption of p-nitrophenol
CN115350686A (en) * 2022-08-16 2022-11-18 青海师范大学 Meglumine modified attapulgite, preparation method and application thereof
CN116770581A (en) * 2023-08-28 2023-09-19 烟台奥森制动材料有限公司 Method for preparing antioxidant carbon fiber solid felt by adopting metal ion purifying agent
CN116770581B (en) * 2023-08-28 2023-10-20 烟台奥森制动材料有限公司 Method for preparing antioxidant carbon fiber solid felt by adopting metal ion purifying agent
CN117736706A (en) * 2024-02-21 2024-03-22 克拉玛依市义恩技术服务有限责任公司 Water-soluble organic salt weighting agent for drilling fluid and preparation method thereof
CN117736706B (en) * 2024-02-21 2024-05-24 克拉玛依市义恩技术服务有限责任公司 Water-soluble organic salt weighting agent for drilling fluid and preparation method thereof

Also Published As

Publication number Publication date
CN106179249B (en) 2018-10-02

Similar Documents

Publication Publication Date Title
CN106179249A (en) A kind of preparation method of attapulgite cellulose composite adsorption microsphere
CN105566660B (en) A kind of chitosan-metal organic frame composite pellets and its preparation method and application
CN103702740B (en) For CO absorption from admixture of gas2porous adsorption structure
CN101250267B (en) Preparation method of cellulose microsphere
CN105148868A (en) Preparation method of nano-crystalline cellulose-based composite aerogel type organic dye absorption material
CN102247811B (en) Preparation method and application of natural trass-sodium alginate composite microsphere water body purification material
CN105413646B (en) A kind of preparation method of porous cellulose acetate microsphere adsorbing agent
CN105107468A (en) Preparation method for superhydrophobic superoleophilic straw fiber
CN106179196B (en) A kind of petrochemical wastewater processing adsorbent and preparation method thereof
CN105921121B (en) A kind of preparation method for the nano-cellulose tannin microgel adsorbent being easily recycled
CN109261138A (en) It is a kind of for heavy metal ion adsorbed ultrabranching polyamide modified sodium alginate microballoon and preparation method thereof
CN106732440A (en) A kind of preparation method of multifunctional porous cellophane adsorbent
CN102489268B (en) Amine-modified fibrous emergent absorbing material and preparation method thereof
CN103432987A (en) Preparation method of modified kieselguhr water purifying agent
CN108514866A (en) A kind of preparation method of hemicellulose group high-efficiency environment friendly adsorbent for heavy metal
CN103570173B (en) Process for recycling diesel oil in waste oil base drilling fluid
CN104403776A (en) Method for absorbing and regenerating waste lubricating oil
CN106000359A (en) Adsorbent for treating petrochemical engineering wastewater and preparing method of adsorbent
CN113000029A (en) Preparation method of bio-based adsorption filtration fiber membrane for removing and recovering mercury in oil and gas field sewage
CN103212379A (en) Method for preparing cellulose based dye waste water purification material with waste newspaper
CN105964221A (en) Composite carbon rod based on waste wool granular active carbon and preparation method for composite carbon rod
CN108889278A (en) A kind of preparation method of composite adsorption microballoon that removing mercury ion
CN108786723A (en) Utilize the method for estrogen in activation montmorillonite biology carbon composite removal water body
CN101912767A (en) Method for preparing modified furfural residue heavy metal adsorbent
CN102941070B (en) Polyethylene-methacrylic acid-polyethylene polyamine fiber and method for preparing same

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181002