CN110227421A - A kind of preparation method and applications of shinyleaf yellowhorn shell active carbon based aquagel - Google Patents
A kind of preparation method and applications of shinyleaf yellowhorn shell active carbon based aquagel Download PDFInfo
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- CN110227421A CN110227421A CN201910525536.8A CN201910525536A CN110227421A CN 110227421 A CN110227421 A CN 110227421A CN 201910525536 A CN201910525536 A CN 201910525536A CN 110227421 A CN110227421 A CN 110227421A
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- active carbon
- shinyleaf yellowhorn
- yellowhorn shell
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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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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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
- B01J20/26—Synthetic macromolecular compounds
- B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid 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
- B01J20/28047—Gels
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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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
Abstract
The present invention relates to technical field of function materials, disclose a kind of preparation method and applications of shinyleaf yellowhorn shell active carbon based aquagel, and charing that shinyleaf yellowhorn shell powder is heated up in the case where completely cutting off air conditions obtains shinyleaf yellowhorn shell active carbon；It takes shinyleaf yellowhorn shell active carbon powder, polyvinyl alcohol and sodium alginate to add water mixed dissolution in a reservoir, and carries out ultrasonic wave and disperse to obtain uniform suspension；By suspension water-bath in heat, CaCl is added dropwise in container when there is dope2Solution is cooled into spherical hydrogel after keeping the temperature after completion of dropwise addition；Finally hydrogel is dried, is crushed.The present invention prepares active carbon using shinyleaf yellowhorn shell, then space net structure is formed using polyethylene glycol and sodium alginate to coat active carbon, form the spheric active carbon based aquagel that surface has oxygen-containing functional group, selective absorption can be carried out to the dye substance in water, also evade the problem of be easy to causeing adsorbent to be lost when directlying adopt active carbon particle.
Description
Technical field
The present invention relates to technical field of function materials, and in particular to a kind of preparation side of shinyleaf yellowhorn shell active carbon based aquagel
Method and its application.
Background technique
There is data to suggest that total weight is discharged China's dyeing waste water day at 300-400 tons, and every 1 ton of untreated dyestuff
Discharge of wastewater will result in the pollution of 20 tons of natural environment water bodys into environment[17].The world today, there are about 1,400,000,000 populations not to have
Direct drinking water resource, more than 80 countries' (greater than 40% of world population) lack originally water resource[18].2000, joint
State organizes oneself that China is classified as one of 13 poor-water states, the world.Waste water from dyestuff coloration is big, high organic content, complicated component, can
The features such as biochemical is poor makes waste water from dyestuff have bigger harmfulness.If untreated waste water from dyestuff is allowed to enter water body environment,
Huge prestige rib can be brought to natural water environment, natural environment, the existence of the mankind or even the sustainable development of economic society.
Active carbon is a kind of porous functional material, active carbon be considered as be arranged in it is similar with graphite carbon crystal
" helical form layered structure ".Active carbon has a series of features and advantages, such as: huge void ratio and huge specific surface
Product, the corrosion resistance of strength can resist high temperature, not be afraid of the ability of acid and alkali corrosion, and electric conductivity is very outstanding, chemistry
Stability and biocompatibility are also high, and to the excellent adsorptivity of physical property and chemical property.Active carbon and people's
It lives closely bound up, sizable effect can be played in every field, for example in power industry, active carbon is due to stronger suction
Attached ability can accomplish desulfurization and dephosphorization；In chemical industry, the harmful substances such as CO that absorption smeltery generates；Food safety row
Industry, may be used as desiccant makes food have the longer shelf-life；Also there is relatively broad application in environmental protection industry.
But the absorption of active carbon is a physical adsorption process, and Powdered Activated Carbon has unique excellent in the treatment of waste water
Gesture, but it the shortcomings that it is also obvious that because the partial size very little of Powdered Activated Carbon, quality also very little, hold very much in use
It easily just goes in air, causes to be lost, to increase cost.Moreover, being difficult and moisture after the completion of absorption in sewage treatment
It separates out and, this is also current problem to be solved.Prepare at this stage in addition active carbon material largely select timber into
Row production, consumes a large amount of timber resources, is unfavorable for environment.
Summary of the invention
Based on problem above, the present invention provides a kind of preparation method and applications of shinyleaf yellowhorn shell active carbon based aquagel,
Active carbon is prepared using shinyleaf yellowhorn shell, is reduced resource waste, shinyleaf yellowhorn shell active carbon has very big specific surface area and aperture；
Then it forms space net structure using polyethylene glycol and sodium alginate to coat active carbon, forming surface has oxygen-containing official
The spheric active carbon based aquagel that can be rolled into a ball can carry out selective absorption to the dye substance in water；The grain of particle is increased simultaneously
Diameter has evaded the problem of be easy to causeing adsorbent to be lost when directlying adopt active carbon particle.
In order to solve the above technical problems, the present invention provides a kind of preparation method of shinyleaf yellowhorn shell active carbon based aquagel,
Include the following steps:
S1: crushing after shinyleaf yellowhorn shell is dried, and smashed shinyleaf yellowhorn shell powder is risen in the case where completely cutting off air conditions
Temperature charing, obtains shinyleaf yellowhorn shell active carbon；
S2: taking out the shinyleaf yellowhorn shell active carbon distilled water repeated flushing prepared, be then filtered, then will filtering
The shinyleaf yellowhorn shell active carbon obtained afterwards is placed in 100 DEG C of baking oven and is dried, and is cooled to room temperature after drying spare；
S3: dry 100 parts of shinyleaf yellowhorn shell active carbon powder, 15 parts of polyvinyl alcohol and seaweed after cooling are taken by mass fraction
15 parts of sour sodium, is then blended in the container for filling 500 parts of distilled water, and container is placed in ultrasonic dispersing machine and carries out ultrasonic wave
After dispersing 10~20min, uniform suspension is obtained；
S4: suspension is placed in 80 DEG C of water-bath and is heated, constantly stirred with glass bar in heating process, work as appearance
When dope, 500 parts of 10%CaCl is added dropwise into container2Solution keeps the temperature 60~120min, then is cooled into after completion of dropwise addition
Spherical hydrogel, is finally dried hydrogel, obtains shinyleaf yellowhorn shell active carbon based aquagel.
Further, the carbonization process temperature control in step S1 are as follows: by room temperature to 120 DEG C, keep the temperature 30min；So
Temperature is risen to 200 DEG C afterwards, and keeps the temperature 60min；600 DEG C are finally warming up to, 120min is kept the temperature.
Further, heating rate is 10 DEG C/min in carbonization process.
Further, CaCl in step S42The rate of addition of solution is 3~5 parts/min.
To solve the above problems, the present invention also provides a kind of applications of shinyleaf yellowhorn shell active carbon based aquagel, including with
Lower step: it takes in liquid of the shinyleaf yellowhorn shell active carbon based aquagel adsorbent material investment containing dye substance, adjusting pH value of solution is 3
~5,1~3h is reacted at 10 DEG C~60 DEG C；After adsorption reaction, it is separated by filtration shinyleaf yellowhorn shell active carbon based aquagel.
Compared with prior art, the beneficial effects of the present invention are: the present invention prepares active carbon using shinyleaf yellowhorn shell, reduce
Then the wasting of resources forms space net structure using polyethylene glycol and sodium alginate and coats to active carbon, forms surface
Spheric active carbon based aquagel with oxygen-containing functional group can carry out selective absorption to the dye substance in water；Increase simultaneously
The partial size of particle, has evaded the problem of be easy to causeing adsorbent to be lost when directlying adopt active carbon particle.
Detailed description of the invention
Fig. 1 is the preparation method flow chart that embodiment Chinese is preced with active fruit shell carbon based aquagel；
Fig. 2 is the infrared spectrogram of 2 Chinese hat active fruit shell carbon and shinyleaf yellowhorn shell active carbon based aquagel of embodiment；
Fig. 3 is the nitrogen adsorption curve of 2 Chinese hat active fruit shell carbon and shinyleaf yellowhorn shell active carbon based aquagel of embodiment；
Fig. 4 is the graph of pore diameter distribution of 2 Chinese hat active fruit shell carbon and shinyleaf yellowhorn shell active carbon based aquagel of embodiment.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1:
Referring to Fig. 1, a kind of preparation method and applications of shinyleaf yellowhorn shell active carbon based aquagel include the following steps:
S1: crushing after shinyleaf yellowhorn shell is dried, and smashed shinyleaf yellowhorn shell powder is risen in the case where completely cutting off air conditions
Temperature charing, obtains shinyleaf yellowhorn shell active carbon (hereinafter abbreviated as " XSBAC ")；
S2: the XSBAC distilled water repeated flushing prepared is taken out, for removing the ashy substance in XSBAC, Yi Mianying
Ring its absorption property；Then it is filtered, then the XSBAC obtained after filtering is placed in 100 DEG C of baking oven and is dried,
It is cooled to room temperature after drying spare；
S3: taking dry 100 parts of XSBAC powder after cooling, 15 parts of polyvinyl alcohol and 15 parts of sodium alginate by mass fraction,
Then be blended in the container for filling 500 parts of distilled water, by container be placed in ultrasonic dispersing machine carry out ultrasonic wave dispersion 10~
After 20min, uniform suspension is obtained；During this, sodium alginate and polyvinyl alcohol are dissolved in formation sodium alginate-polyethylene after water
Alcohol colloidal solution, sodium alginate-polyvinyl alcohol are space net structure；XSBAC powder after ultrasonic wave disperses is suspended in glue
In shape solution；
S4: suspension is placed in 80 DEG C of water-bath and is heated, constantly stirred with glass bar in heating process, work as appearance
When dope, 500 parts of 10%CaCl is added dropwise into container2Solution keeps the temperature 60~120min, then is cooled into after completion of dropwise addition
Spherical hydrogel；CaCl during this2As crosslinking agent, effect is exactly to generate chemical bond between the molecule of line style, makes line
Type molecule is connected with each other, make suspension formed granular sodium alginate-polyvinyl alcohol-active carbon have reticular structure
Small spherical particles are finally dried hydrogel, obtain shinyleaf yellowhorn shell active carbon based aquagel (hereinafter abbreviated as " XSBACH ").
The present invention prepares active carbon using shinyleaf yellowhorn shell, reduces resource waste, XSBAC have very big specific surface area and
Aperture；Then it forms space net structure using polyethylene glycol and sodium alginate to coat active carbon, forming surface has
The spheric active carbon based aquagel of oxygen-containing functional group can carry out selective absorption to the dye substance in water；It increases simultaneously
The partial size of grain, has evaded the problem of be easy to causeing adsorbent to be lost when directlying adopt active carbon particle.
Embodiment 2:
S1: crushing after shinyleaf yellowhorn shell is dried, and smashed shinyleaf yellowhorn shell powder is risen in the case where completely cutting off air conditions
Temperature charing, the control of carbonization process temperature are as follows: by room temperature to 120 DEG C, keep the temperature 30min；Then temperature is risen to 200 DEG C,
And keep the temperature 60min；600 DEG C are finally warming up to, 120min is kept the temperature, controlling heating rate in the process is 10 DEG C/min, is obtained
XSBAC；Gradient increased temperature is used in carbonization process, can reduce the temperature stress that reticular structure active carbon generates in temperature-rise period,
Charcoal framework collapse is prevented, to guarantee its pore structure abundant.
S2: taking out the XSBAC distilled water repeated flushing prepared, be then filtered, and then will obtain after filtering
XSBAC is placed in 100 DEG C of baking oven and is dried, and is cooled to room temperature after drying spare；
S3: taking dry 100 parts of XSBAC powder after cooling, 15 parts of polyvinyl alcohol and 15 parts of sodium alginate by mass fraction,
Then be blended in the container for filling 500 parts of distilled water, by container be placed in ultrasonic dispersing machine carry out ultrasonic wave dispersion 10~
After 20min, uniform suspension is obtained；
S4: suspension is placed in 80 DEG C of water-bath and is heated, constantly stirred with glass bar in heating process, work as appearance
When dope, 500 parts of 10%CaCl is added dropwise into container2Solution, rate of addition are 3~5 parts/min, to guarantee into ball particle
Uniformly, 60~120min is kept the temperature after completion of dropwise addition, then is cooled into spherical hydrogel, after hydrogel is dried, obtain
XSBACH。
Using 27 type infrared spectrometer of TENSOR respectively to the shiny-leaved yellowhorn active carbon XSBAC and shiny-leaved yellowhorn in the present embodiment
The functional group of active carbon hydrogel XSBACH is characterized, as a result as shown in Figure 2.From Figure 2 it can be seen that XSBACH is in 3330cm-1,
3058cm-1、1554cm-1、1337cm-1、528cm-1Apparent absorption peak at 5 is shared, is-OH, C-H, C=O, C-O-C respectively
On stretching motion and phenyl ring caused by C-H deformation vibration, and XSBAC is in 528cm-1But without apparent absorption peak.Explanation
XSBACH produces new absorption peak here.The absorption peak of-OH stretching vibration is by the 3388cm on XSBAC-1It is moved to
3330cm-1.The symmetrical stretching vibration peak of C=O by XSBAC 1604cm-1It is moved to 1554cm-1, the group absorptions peak of XSBACH
Comparison XSBAC has apparent enhancing；In 500cm-1-600cm-1Between, XSBACH is generated newly continuously herein
Absorption peak, reason be exactly C-H bending motion and aromatic ring CH deformation vibration caused by, and XSBAC is not so much.Explanation
The number and type ratio XSBAC's of the functional group of XSBACH is more, and the adsorption effect of XSBACH will be more preferable.
Using Mai Qike Baeyer miniII type physical adsorption appearance to shiny-leaved yellowhorn active carbon XSBAC and shiny-leaved yellowhorn active carbon water-setting
The specific surface area of glue XSBACH and aperture are analyzed, as a result as shown in Figure 3,4.Use N2As adsorbing medium -196.15
Nitrogen absorption measurement is carried out at DEG C.Specific surface area and hole the volume product of XSBACH is respectively 52.41m2/g-1And 0.04m3/g-1。
XSBAC specific surface area and hole volume product are respectively 12.42m2/g-1And 0.005m3/g-1.The average pore size of XSBAC and XSBACH is equal
About 9.64nm.And XSBACH central hole structure is more flourishing, and possesses stable skeleton structure, specific surface area is bigger, and adsorbance is more
By force.Therefore, XSBACH can effectively adsorb the dye substance in water.
Embodiment 3
It takes in aqueous solution of the shinyleaf yellowhorn shell active carbon based aquagel adsorbent material investment containing dye substance obtained, adjusts
PH value of solution is 3~5, and 1~3h is reacted at 10 DEG C~60 DEG C；After adsorption reaction, it is separated by filtration shinyleaf yellowhorn shell active carbon base
Hydrogel takes filtrate to measure its adsorbance with ultraviolet specrophotometer.
Shinyleaf yellowhorn shell active carbon based aquagel adsorbent material 0.02g obtained in the present embodiment Example 2, investment alkalinity
Pinkish red concentration is in the aqueous solution of 700mg/L, and adjusting pH value of solution is 4, reacts 3h at 60 DEG C；After adsorption reaction, with from
Scheming separates 5 minutes, is moved to a small amount of supernatant liquor in conical flask with pipette, after 100 times of dilution, uses uv-spectrophotometric
Meter measures its adsorbance.As a result are as follows: XSBACH is up to 285.6mg/g to the adsorbance of basic fuchsin.
It as above is the embodiment of the present invention.Design parameter in above-described embodiment and embodiment is merely to understand table
Invention verification process is stated, the scope of patent protection being not intended to limit the invention, scope of patent protection of the invention is still with it
It is all to change with equivalent structure made by specification and accompanying drawing content of the invention subject to claims, it should all similarly wrap
Containing within the scope of the present invention.
Claims (5)
1. a kind of preparation method of shinyleaf yellowhorn shell active carbon based aquagel, which comprises the steps of:
S1: crushing after shinyleaf yellowhorn shell is dried, and smashed shinyleaf yellowhorn shell powder is heated up charcoal in the case where completely cutting off air conditions
Change, obtains shinyleaf yellowhorn shell active carbon；
S2: taking out the shinyleaf yellowhorn shell active carbon distilled water repeated flushing prepared, be then filtered, and then will obtain after filtering
To shinyleaf yellowhorn shell active carbon be placed on 100 DEG C baking oven in be dried, be cooled to room temperature after drying spare；
S3: dry 100 parts of shinyleaf yellowhorn shell active carbon powder, 15 parts of polyvinyl alcohol and sodium alginate after cooling are taken by mass fraction
It 15 parts, is then blended in the container for filling 500 parts of distilled water, container is placed on progress ultrasonic wave dispersion in ultrasonic dispersing machine
After 10~20min, uniform suspension is obtained；
S4: suspension being placed in 80 DEG C of water-bath and heated, constantly stirred with glass bar in heating process, sticky when occurring
When object, 500 parts of 10%CaCl is added dropwise into container2Solution keeps the temperature 60~120min, then is cooled into spherical after completion of dropwise addition
Hydrogel is finally dried hydrogel, obtains shinyleaf yellowhorn shell active carbon based aquagel.
2. the preparation method of shinyleaf yellowhorn shell active carbon based aquagel according to claim 1, which is characterized in that in step S1
Carbonization process temperature control are as follows: by room temperature to 120 DEG C, keep the temperature 30min；Then temperature is risen to 200 DEG C, and kept the temperature
60min；600 DEG C are finally warming up to, 120min is kept the temperature.
3. the preparation method of shinyleaf yellowhorn shell active carbon based aquagel according to claim 2, it is characterised in that: carbonization process
Middle heating rate is 10 DEG C/min.
4. the preparation method of shinyleaf yellowhorn shell active carbon based aquagel according to claim 1, it is characterised in that: in step S4
CaCl2The rate of addition of solution is 3~5 parts/min..
5. a kind of application based on shinyleaf yellowhorn shell active carbon based aquagel described in Claims 1 to 4 any one, feature exist
In, comprising the following steps: it takes in liquid of the shinyleaf yellowhorn shell active carbon based aquagel adsorbent material investment containing dye substance, adjusts
PH value of solution is 3~5, and 1~3h is reacted at 10 DEG C~60 DEG C；After adsorption reaction, it is separated by filtration shinyleaf yellowhorn shell active carbon base
Hydrogel.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115073866A (en) * | 2022-06-15 | 2022-09-20 | 郭逸晨 | Biochar-embedded composite hydrogel capable of adsorbing active dye and preparation method thereof |
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