CN109173994A - A kind of modified abandoned stub of high temperature carbonization prepares the method for charcoal and the application of charcoal - Google Patents
A kind of modified abandoned stub of high temperature carbonization prepares the method for charcoal and the application of charcoal Download PDFInfo
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- CN109173994A CN109173994A CN201811095179.8A CN201811095179A CN109173994A CN 109173994 A CN109173994 A CN 109173994A CN 201811095179 A CN201811095179 A CN 201811095179A CN 109173994 A CN109173994 A CN 109173994A
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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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- 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
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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
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
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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
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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Abstract
A kind of modified abandoned stub of high temperature carbonization prepares the method for charcoal and the application of charcoal, it is related to a kind of preparation method and applications of charcoal.The technical issues of the present invention is to solve bisphenol-A in existing water body is seriously polluted, and discarded stub pollutes.The present invention: one, hydro-thermal method carbonizes stub；Two, it is centrifuged, drying；Three, high temperature pyrolysis；Four, acid is added, filters.Charcoal prepared by the present invention is as the bisphenol-A in adsorbent removal water body.The present invention prepares charcoal as raw material using discarded stub, it is combined with the removal of BPA, this modified abandoned stub charcoal of high temperature carbonization is under condition of different pH, addition humic acid has little effect the removal of BPA, with apparent selectivity, and there is targeting selectivity to BPA in practical water body, this charcoal is significantly improved compared to absorption property of the commercial activated carbons to BPA simultaneously, provides a kind of effective and feasible easy way to improve water quality.
Description
Technical field
The present invention relates to a kind of preparation method and applications of charcoal.
Background technique
Incretion interferent (EDCs) can simulate the bioactivity of natural hormone, occupy hormone receptor, or interference is naturally
The transport and metabolic process of hormone finally constitute risk to animals and humans.Therefore, EDCs is quite paid close attention in recent years.As these
The bisphenol-A (BPA) of one of EDCs is widely used as producing epoxy resin, and the monomer of polycarbonate and other plastics is widely present
In nature, it is considered to be a kind of important pollutant.It is reported that in industrial wastewater, underground water, surface water even drinking water
In all detect BPA pollute, seriously threaten life security biological in the mankind and natural environment.Therefore, it develops a kind of new
The bisphenol-A that type adsorbent is used to remove in water body is particularly important.
Last century the fifties, smoking result in cancer patient and largely increase, and tobacco company smokes to reduce to people
The health effect of body and have developed filter tip, it can effectively reduce the wastes such as tar, nicotine in flue gas, to reduce flue gas
Harm to smoker.However, being intended to protect in the past, the filter tip of human health is now most common at the whole world, quantity is most
Solid waste.The filter tip that the whole world is consumed every year according to estimates reaches 5.8 trillion, and total amount reaches 766571 tons.Stub (filter
The part that mouth cigarette cannot suck after sucking) it is difficult to degrade in the natural environment, long there are the time, they can be discharged into environment
Heavy metal can also be such that ethyl phenol and pesticide residue in environment accumulates and increase, and constitute healthy prestige to the mankind and nature biotechnology
The side of body, and cause serious environmental pollution.In consideration of it, bisphenol-A removal and the problem of discarded stub, are all urgently to be resolved in water body.
Summary of the invention
The technical issues of the present invention is to solve bisphenol-A in existing water body is seriously polluted, and discarded stub pollutes, and
A kind of modified abandoned stub of high temperature carbonization is provided and prepares the method for charcoal and the application of charcoal.
The method that the modified abandoned stub of high temperature carbonization of the invention prepares charcoal carries out according to the following steps:
One, discarded stub is shredded into clast with scissors, clast is placed in reaction kettle, into reaction kettle be added go from
Sub- water, is carbonized using hydro-thermal method, obtains hydration charcoal；The quality of the stub and the volume ratio of deionized water are 1g:
(10mL~15mL)；The temperature of the hydro-thermal method is 220 DEG C~240 DEG C, and the time is 4h~5h；
Two, hydration charcoal prepared by step 1 is transferred in centrifuge tube and is centrifuged, be decanted off supernatant, use deionized water
It is cleaned repeatedly to supernatant clear, drying obtains charcoal metallic substance；The revolving speed of the centrifugation be 10000r/min~
11000r/min, centrifugation time are 5min~10min；The temperature of the drying is 110 DEG C~120 DEG C；
Three, the charcoal metallic substance and activator that prepare in step 2 are ground after evenly mixing, is then protected in protection gas
Shield is lower to carry out high temperature pyrolysis, cools to room temperature with the furnace in the case where protecting gas shielded, obtains charcoal crude product；
The activator is KOH；The mass ratio of the charcoal metallic substance and activator is 1:4；
Under conditions of the high temperature pyrolysis: heating rate be 3 DEG C/min~4 DEG C/min, pyrolysis temperature be 600 DEG C~
800 DEG C, pyrolysis time is 1h~1.5h；
The protection gas is argon gas, and protecting the flow velocity of gas is 150mL/min~180mL/min；
Four, it 1., by the charcoal crude product prepared in step 3 is transferred in beaker, acid solution is added, stirs evenly；
2., be added deionized water, stir evenly, filtered, obtain black filter cake；
3., be iteratively repeated the operation of step 2. until filtrate be in neutrality, black filter cake is taken out, dry, obtain charcoal；
The acid solution is the hydrochloric acid solution of 2mol/L；
The quality of activator described in step 3 and step 4 1. described in the volume ratio of acid solution be 8mg:1mL；
The quality of activator described in step 3 and step 4 2. described in the volume ratio of deionized water be 2mg:
1mL；
Step 4 3. described in drying temperature be 110 DEG C~120 DEG C.
Charcoal prepared by the present invention is as the bisphenol-A in adsorbent removal water body.
Benefit of the invention are as follows: the present invention is prepared as raw material using a kind of solid waste stub with environmental hazard and given birth to
Object charcoal, the modified abandoned stub charcoal production cost of the high temperature carbonization being prepared is low, and preparation process is simple；It simultaneously will be in water
The absorption of BPA is combined with the resource utilization of discarded stub, the charcoal adsorbed water body being converted to using solid waste stub
In BPA, this modified abandoned stub charcoal of high temperature carbonization significantly mentions compared to absorption property of the commercial activated carbons to BPA
Height, removal rate reach 80%~95%, while under condition of different pH, under the conditions of existing for the humic acid, and in practical water
Body high temperature, which carbonizes modified abandoned stub charcoal, has apparent targeting selective absorption characteristic to the removal of BPA, to improve
Water quality provides a kind of effective and feasible easy way, with good application prospect.
Detailed description of the invention
Fig. 1 is the effect picture for testing BPA removal rate in four；
Fig. 2 is the adsorption isotherm map for testing BPA in five；
Fig. 3 is the effect picture for testing BPA removal rate in six；
Fig. 4 is the effect picture for testing BPA removal rate in seven；
Fig. 5 is the effect picture for testing BPA removal rate in eight.
Specific embodiment
Specific embodiment 1: present embodiment is the method that a kind of modified abandoned stub of high temperature carbonization prepares charcoal,
Specifically carry out according to the following steps:
One, discarded stub is shredded into clast with scissors, clast is placed in reaction kettle, into reaction kettle be added go from
Sub- water, is carbonized using hydro-thermal method, obtains hydration charcoal；The quality of the stub and the volume ratio of deionized water are 1g:
(10mL~15mL)；The temperature of the hydro-thermal method is 220 DEG C~240 DEG C, and the time is 4h~5h；
Two, hydration charcoal prepared by step 1 is transferred in centrifuge tube and is centrifuged, be decanted off supernatant, use deionized water
It is cleaned repeatedly to supernatant clear, drying obtains charcoal metallic substance；The revolving speed of the centrifugation be 10000r/min~
11000r/min, centrifugation time are 5min~10min；The temperature of the drying is 110 DEG C~120 DEG C；
Three, the charcoal metallic substance and activator that prepare in step 2 are ground after evenly mixing, is then protected in protection gas
Shield is lower to carry out high temperature pyrolysis, cools to room temperature with the furnace in the case where protecting gas shielded, obtains charcoal crude product；
The activator is KOH；The mass ratio of the charcoal metallic substance and activator is 1:4；
Under conditions of the high temperature pyrolysis: heating rate be 3 DEG C/min~4 DEG C/min, pyrolysis temperature be 600 DEG C~
800 DEG C, pyrolysis time is 1h~1.5h；
The protection gas is argon gas, and protecting the flow velocity of gas is 150mL/min~180mL/min；
Five, it 1., by the charcoal crude product prepared in step 3 is transferred in beaker, acid solution is added, stirs evenly；
2., be added deionized water, stir evenly, filtered, obtain black filter cake；
3., be iteratively repeated the operation of step 2. until filtrate be in neutrality, black filter cake is taken out, dry, obtain charcoal；
The acid solution is the hydrochloric acid solution of 2mol/L；
The quality of activator described in step 3 and step 4 1. described in the volume ratio of acid solution be 8mg:1mL；
The quality of activator described in step 3 and step 4 2. described in the volume ratio of deionized water be 2mg:
1mL；
Step 4 3. described in drying temperature be 110 DEG C~120 DEG C.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: clast described in step 1
Length be less than 5mm, diameter be 1mm~5mm.Other are same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: it is described in step 1
The temperature of hydro-thermal method is 220 DEG C, time 4h.Other are the same as one or two specific embodiments.
Specific embodiment 4: present embodiment is unlike specific embodiment one to three: described in step 2 from
The revolving speed of the heart is 10000r/min, centrifugation time 5min.Other are identical as specific embodiment one to three.
Specific embodiment 5: present embodiment is the application of charcoal in specific embodiment one, it is used as adsorbent
Remove the bisphenol-A in water body.
The present invention is verified with following tests:
Test one: this test is the method that a kind of modified abandoned stub of high temperature carbonization prepares charcoal, specifically by following
What step carried out:
One, discarded stub is shredded into clast with scissors, clast is placed in reaction kettle, into reaction kettle be added go from
Sub- water, is carbonized using hydro-thermal method, obtains hydration charcoal；The quality of the stub and the volume ratio of deionized water are 1g:
10mL；The temperature of the hydro-thermal method is 220 DEG C, time 4h；
Two, hydration charcoal prepared by step 1 is transferred in centrifuge tube and is centrifuged, be decanted off supernatant, use deionized water
It is cleaned repeatedly to supernatant clear, drying obtains charcoal metallic substance；The revolving speed of the centrifugation is 10000r/min, when centrifugation
Between be 5min；The temperature of the drying is 110 DEG C；
Three, the charcoal metallic substance and activator that prepare in step 2 are ground after evenly mixing, is then protected in protection gas
Shield is lower to carry out high temperature pyrolysis, cools to room temperature with the furnace in the case where protecting gas shielded, obtains charcoal crude product；
The activator is KOH；The mass ratio of the charcoal metallic substance and activator is 1:4；
Under conditions of the high temperature pyrolysis: heating rate is 3 DEG C/min, and pyrolysis temperature is 600 DEG C, and pyrolysis time is
1h；
The protection gas is argon gas, and protecting the flow velocity of gas is 150mL/min；
Six, it 1., by the charcoal crude product prepared in step 3 is transferred in beaker, acid solution is added, stirs evenly；
2., be added deionized water, stir evenly, filtered, obtain black filter cake；
3., be iteratively repeated the operation of step 2. until filtrate be in neutrality, black filter cake is taken out, dry, obtain charcoal
(being denoted as AC-600)；
The acid solution is the hydrochloric acid solution of 2mol/L；
The quality of activator described in step 3 and step 4 1. described in the volume ratio of acid solution be 8mg:1mL；
The quality of activator described in step 3 and step 4 2. described in the volume ratio of deionized water be 2mg:
1mL；
Step 4 3. described in drying temperature be 110 DEG C.
Test two: this test is the method that a kind of modified abandoned stub of high temperature carbonization prepares charcoal, different from test one
Be pyrolysis temperature in step 3 be 700 DEG C, it is other identical as testing one, finally obtain charcoal (being denoted as AC-700).
Test three: this test is the method that a kind of modified abandoned stub of high temperature carbonization prepares charcoal, different from test one
Be pyrolysis temperature in step 3 be 800 DEG C, it is other identical as testing one, finally obtain charcoal (being denoted as AC-800).
To charcoal AC-600, AC-700, the AC-800's and NORIT company of Holland prepared in test one, two and three
Two kinds of commercial activated carbons NORIT-1, NORIT-2 are characterized, and table 1 is the characterize data of this five kinds of charcoals respectively.In table
Shown in data, specific surface area, pore volume, the pore size of NORIT-1 and NORIT-2 are not much different, AC-600, AC-700 and AC-
With the raising of pyrolysis temperature, specific surface area is obviously improved 800 these three materials, reaches as high as 1321.82m2/g；Hole body
Product is also promoted more obvious, these three material apertures are all in 2nm or so, and since the molecular dimension of BPA is 0.94nm, Ke Yishun
Benefit by duct diffusion couple, it is adsorbed.
The test data of 1 each sample of table
Test four: this test is the application of charcoal bisphenol-A in removal water body, by one to three preparation of test obtained
AC-600, AC-700, AC-800 and commercial activated carbons NORIT-1, NORIT-2 are added separately to the water that BPA concentration is 50mg/L
In body, the concentration of charcoal is 0.25g/L after addition, is then stirred with the revolving speed of 600r/min, and sample time is respectively to stir
0,3min, 10min, 30min and 60min, gained sample are analyzed using liquid chromatogram, removal of five kinds of charcoals to BPA
Rate is as shown in Figure 1, curve 1 is AC-800, and curve 2 is AC-700, and curve 3 is NORIT-2, and curve 4 is NORIT-1, and curve 5 is
AC-600, as can be seen from the figure AC-600 is suitable with the active carbon removal ability that NORIT company of Holland produces, and is attained by
With the raising of pyrolysis temperature, removal ability is obviously improved by 45% or more, AC-700 and AC-800, and AC-700 removes BPA
Rate is that 68.98%, AC-800 is 82.18% to BPA removal rate.
Test five: this test is the application of charcoal bisphenol-A in removal water body, uses what is be respectively configured by deionized water
Concentration is the BPA solution of 10mg/L, 20mg/L, 30mg/L, 40mg/L, 50mg/L, 60mg/L and 70mg/L, each that test three is added
The charcoal AC-800 of preparation, the concentration of charcoal is 0.25g/L after addition, enterprising in magnetic stirring apparatus after ultrasonic 1min
Row stirring and adsorbing, using the adsorption isotherm for drawing out BPA after liquid chromatogram measuring, as a result as shown in Fig. 2, can be obtained from figure
Know, the adsorbance of AC-800 is continuously increased with the increase of BPA concentration, reaches maximum adsorption when BPA concentration is 70mg/L
Measure 620.13mg/g.
Test six: this test is the application of charcoal bisphenol-A in removal water body, by adjusting pH value different in water body
To investigate the modified abandoned stub charcoal of this high temperature carbonization to the adsorptive selectivity of BPA.Four parts of 50mL concentration are taken to be respectively
For the BPA solution of 50mg/L in four beakers, being adjusted to pH with hydrochloric acid and sodium hydroxide respectively is 3,5,7 and 9, then is separately added into
Charcoal AC-800 prepared by the test three of 5mg, ultrasonic 1min makes it be uniformly dispersed, with 600r/min's on magnetic stirring apparatus
Revolving speed is stirred, and is sampled when stirring 0,3min, 10min, 30min and 60min, is surveyed respectively with liquid chromatogram
It is fixed, as a result as shown in figure 3, ◆ be pH be 3, ▲ be pH be 7, ■ be pH be 5, × be pH be 9, it is known from figures that, four
Different pH eliminating rate of absorption differences are up to 2.49%, it is possible to obtain, no matter in acid, neutral or alkaline condition
Under, charcoal AC-800 is very good to the removal rate of BPA, i.e., it is believed that under condition of different pH, AC-800 pairs of charcoal
The removal of BPA has apparent selective absorption characteristic.
Test seven: this test is the application of charcoal bisphenol-A in removal water body, and humic acid is animals and plants remains, mainly
It is the remains of plant, causes and accumulate by the decomposition and conversion and a series of geochemical processes of microorganism
A kind of organic substance, is widely present in nature, is the factor that can not ignore in BPA removal process in nature, passes through then
Adsorptive selectivity of the modified abandoned stub charcoal of this high temperature carbonization of this experiment investigation to BPA.Respectively weigh 0.5mg's and 1mg
Humic acid in the volumetric flask of two 100mL, be then separately added into two volumetric flasks concentration be 50mg/L BPA solution extremely
100mL graduation mark, and ultrasound is carried out until humic acid dissolution, respectively obtains the rotten plant that concentration is 5mg/L and concentration is 10mg/L
Acid solution；The humic acid solution of two various concentrations of 50mL is taken respectively and a 50mL concentration is the BPA stoste of 50mg/L in three
It being compared in a beaker, charcoal AC-800, ultrasonic 1min prepared by each test three that 5mg is added makes it be uniformly dispersed, into
Row stirring and adsorbing, sample time are respectively to stir 0,3min, 10min, 30min and 60min, carry out concentration using liquid chromatogram
Measurement, as a result as shown in figure 4, ◆ be the BPA stoste of 50mg/L, ▲ be the concentration of humic acid in humic acid solution be 10mg/L,
■ is that the concentration that pH is humic acid in humic acid solution is 5mg/L, measurement result discovery, when humic acid concentration is 0mg/L, 5mg/
L and 10mg/L of BPA removal rate when to(for) 50mg/L is respectively 96.47%, 95.74% and 95.53%, and maximum difference is only
0.94%, it is contemplated that some factors including allowable error, it is possible to think humic acid for charcoal AC-800 to BPA's
Absorption does not influence, and as in the presence of humic acid, charcoal AC-800 has obvious choosing for the removal of BPA
Select characteristic.
Test eight: the solvent of preparation of BPA solution is deionized water in test four to seven, coexisting in practical water body
The competition object of organic matter, ion and other impurities as BPA can compete jointly the modified abandoned stub of high temperature carbonization with BPA
Effective adsorption site of charcoal, to influence the removal of BPA, it is contemplated that practice, therefore this test select Natural Water into
Row BPA absorption is probed into, and the Natural Water that this test is selected is Ganjiang River downstream raw water, will be collected Ganjiang River water back and is carried out water quality inspection
It surveys, the indices of Ganjiang River water are shown in Table 2, use the BPA solution that Ganjiang River water is 20mg/L and 50mg/L as solvent compound concentration,
The BPA solution for being 20mg/L and 50mg/L with the concentration for using deionized water to configure, totally four groups of BPA solution are adsorbed and are compared
As a result, four groups take 50mL, be separately added into charcoal AC-800 prepared by the test three of 5mg, as shown in figure 5, ◆ for Gan Jiangshui/
20mg/L, ▲ it is Gan Jiangshui/50mg/L, ■ is deionization/20mg/L, × it is deionization/50mg/L, as can be seen from the figure
When BPA concentration is 20mg/L, the removal rate that the BPA solution and Ganjiang River water of deionized water configuration are prepared is respectively 96.89% He
96.04%；When BPA concentration is 50mg/L, the removal rate of the two is respectively 85.60% and 80.95%, it follows that conclusion, Jiangxi
River has little effect removal rate of the charcoal charcoal AC-800 to BPA, it can be seen that, in practical water body, AC-
800 have targeting selectivity for the removal of BPA.
2 Ganjiang River water indices of table
Claims (5)
1. a kind of method that the modified abandoned stub of high temperature carbonization prepares charcoal, it is characterised in that the modified abandoned stub of high temperature carbonization
The method for preparing charcoal carries out according to the following steps:
One, discarded stub is shredded into clast with scissors, clast is placed in reaction kettle, deionization is added into reaction kettle
Water is carbonized using hydro-thermal method, obtains hydration charcoal；The quality of the stub and the volume ratio of deionized water are 1g:(10mL
~15mL)；The temperature of the hydro-thermal method is 220 DEG C~240 DEG C, and the time is 4h~5h；
Two, hydration charcoal prepared by step 1 is transferred in centrifuge tube and is centrifuged, be decanted off supernatant, repeatedly with deionized water
Cleaning to supernatant clear, drying obtains charcoal metallic substance；The revolving speed of the centrifugation is 10000r/min~11000r/
Min, centrifugation time are 5min~10min；The temperature of the drying is 110 DEG C~120 DEG C；
Three, the charcoal metallic substance and activator that prepare in step 2 are ground after evenly mixing, then in the case where protecting gas shielded
High temperature pyrolysis is carried out, room temperature is cooled to the furnace in the case where protecting gas shielded, obtains charcoal crude product；
The activator is KOH；The mass ratio of the charcoal metallic substance and activator is 1:4；
Under conditions of the high temperature pyrolysis: heating rate is 3 DEG C/min~4 DEG C/min, and pyrolysis temperature is 600 DEG C~800 DEG C,
Pyrolysis time is 1h~1.5h；
The protection gas is argon gas, and protecting the flow velocity of gas is 150mL/min~180mL/min；
Four, it 1., by the charcoal crude product prepared in step 3 is transferred in beaker, acid solution is added, stirs evenly；
2., be added deionized water, stir evenly, filtered, obtain black filter cake；
3., be iteratively repeated the operation of step 2. until filtrate be in neutrality, black filter cake is taken out, dry, obtain charcoal；
The acid solution is the hydrochloric acid solution of 2mol/L；
The quality of activator described in step 3 and step 4 1. described in the volume ratio of acid solution be 8mg:1mL；
The quality of activator described in step 3 and step 4 2. described in the volume ratio of deionized water be 2mg:1mL；
Step 4 3. described in drying temperature be 110 DEG C~120 DEG C.
2. the method that the modified abandoned stub of a kind of high temperature carbonization according to claim 1 prepares charcoal, it is characterised in that
The length of clast described in step 1 is less than 5mm, and diameter is 1mm~5mm.
3. the method that the modified abandoned stub of a kind of high temperature carbonization according to claim 1 prepares charcoal, it is characterised in that
The temperature of hydro-thermal method described in step 1 is 220 DEG C, time 4h.
4. the method that the modified abandoned stub of a kind of high temperature carbonization according to claim 1 prepares charcoal, it is characterised in that
The revolving speed of centrifugation described in step 2 is 10000r/min, centrifugation time 5min.
5. a kind of application of the charcoal of the modified abandoned stub preparation of high temperature carbonization as described in claim 1, it is characterised in that
The charcoal is as the bisphenol-A in adsorbent adsorbed water body.
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| CN110015661A (en) * | 2019-04-12 | 2019-07-16 | 复旦大学 | A method of nitrogen-dopped activated carbon is prepared using discarded cigarette butt |
| CN111530465A (en) * | 2020-05-26 | 2020-08-14 | 湘潭大学 | Preparation method of supported cigarette end porous carbon material catalyst and application of supported cigarette end porous carbon material catalyst in nitrocyclohexane hydrogenation reaction |
| CN111545167A (en) * | 2020-04-13 | 2020-08-18 | 南昌航空大学 | Method for preparing silver ion selective adsorbent by using pasture |
| CN112169760A (en) * | 2020-10-21 | 2021-01-05 | 江苏中烟工业有限责任公司 | Preparation method of cigarette butt biochar material for selectively adsorbing ammonia in smoke |
| CN113046569A (en) * | 2021-03-03 | 2021-06-29 | 南昌航空大学 | Method for selectively recovering gold from waste circuit board |
| CN116651400A (en) * | 2023-06-29 | 2023-08-29 | 湘潭大学 | Preparation method of modified cigarette butt activated carbon microsphere and application of modified cigarette butt activated carbon microsphere in ammonia adsorption |
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| CN110015661A (en) * | 2019-04-12 | 2019-07-16 | 复旦大学 | A method of nitrogen-dopped activated carbon is prepared using discarded cigarette butt |
| CN111545167A (en) * | 2020-04-13 | 2020-08-18 | 南昌航空大学 | Method for preparing silver ion selective adsorbent by using pasture |
| CN111530465A (en) * | 2020-05-26 | 2020-08-14 | 湘潭大学 | Preparation method of supported cigarette end porous carbon material catalyst and application of supported cigarette end porous carbon material catalyst in nitrocyclohexane hydrogenation reaction |
| CN112169760A (en) * | 2020-10-21 | 2021-01-05 | 江苏中烟工业有限责任公司 | Preparation method of cigarette butt biochar material for selectively adsorbing ammonia in smoke |
| CN112169760B (en) * | 2020-10-21 | 2023-08-22 | 江苏中烟工业有限责任公司 | Preparation method of cigarette butt biochar material for selectively adsorbing ammonia in smoke |
| CN113046569A (en) * | 2021-03-03 | 2021-06-29 | 南昌航空大学 | Method for selectively recovering gold from waste circuit board |
| CN116651400A (en) * | 2023-06-29 | 2023-08-29 | 湘潭大学 | Preparation method of modified cigarette butt activated carbon microsphere and application of modified cigarette butt activated carbon microsphere in ammonia adsorption |
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