CN106732438A - A kind of natural biomass adsorbent and preparation method and application - Google Patents
A kind of natural biomass adsorbent and preparation method and application Download PDFInfo
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- CN106732438A CN106732438A CN201710163291.XA CN201710163291A CN106732438A CN 106732438 A CN106732438 A CN 106732438A CN 201710163291 A CN201710163291 A CN 201710163291A CN 106732438 A CN106732438 A CN 106732438A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2101/00—Nature of the contaminant
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Abstract
The present invention is a kind of natural biomass adsorbent and its preparation method and application.With peanut shell as raw material, by alkaline solution, joint hydrothermal carbonization reaction separates the good composition of absorption property in peanut shell with other impurities to the natural biomass adsorbent, has obtained natural biomass adsorbent.The low deficiency of the organic solvent that needs to use, complex process, the adsorption capacity of being modified instant invention overcomes peanut shell in current techniques, in addition, peanut shell sorbing material prepared by the present invention preferably can be suspended in water body, use it for absorption, the advantages of good adsorption effect of pollutant in water body, absorption is finished, can in a short time settle, energy consumption is greatlyd save in sorbing material removal process.
Description
Technical field
The present invention relates to a kind of efficient natural biomass peanut shell adsorbent, preparation method and application, specifically using alkali
Property solution hydro-thermal process is carried out to natural biomass peanut shell, be washed out, dry, by products obtained therefrom be used for water environment pollution in
The improvement of organic sewage and heavy metal ion sewage, finally realizes agriculture and forestry organic waste material recycling, the treatment of wastes with processes of wastes against one another, change give up into
Treasured, reaches the purpose of energy-saving and emission-reduction.
Background technology
China is large agricultural country, and industrial development relatively falls behind, in order to improve the living standard of people and promote national
Expanding economy, country greatly develops industrial or agricultural, therefore, use highly toxic pesticide and trade effluent due to a large amount of in evolution
Discharge wantonly, so as to cause hardly degraded organic substance and heavy metal ion to the severe contamination of environment.Highly toxic pesticide and industrial or agricultural
Sewage has height harmfulness and refractory rationality.Not only to water environment in biological health cause harm, meanwhile, the mankind are good for
Health also constitutes a serious threat, and how to administer the pollution of organic pollution and heavy metal ion as the control of current water environment pollution
Problem.At present, the method for administering Organic Pollutants In Water and heavy metal ion pollution mainly has absorption method, photochemical catalytic oxidation
Method, flocculent precipitation etc., wherein, absorption method has that floor space is small, synthesis technique simple, easy to operate, low cost, without two
Secondary pollution, the advantages of adsorbent is reusable.Therefore, efficient absorption material is prepared as organic pollution and heavy metal ion
The adsorbent of sewage, for process the organic pollution in water environment and heavy metal ion sewage ensure people life health and
The good development of national economy has become the effective way of national economy sustainable development.
Biomass are often referred to using big gas and water, the earth, and the various organisms produced by photosynthesis are (mainly by C, H
Constituted with O elements).Including some plants, animal and microorganism, what the life entity such as these plants, animal and microorganism was derived
The polymer that tri- kinds of elements containing C, H and O are constituted, be otherwise known as biological material, for example：CO2By photosynthesis
The renewable resources such as starch, cellulose, the hemicellulose of generation belong to biological material.Biological material has source wide
The advantages of general, rich reserves, non-secondary pollution, energy saving, is used for the pollutant in adsorbed water body.This material is claimed again
It is biomass sorbing material.
Peanut shell is a kind of natural biomass containing a large amount of celluloses, lignin and hemicellulose, to dye molecule, weight
Metal ion, formaldehyde, antibiotic, pernicious gas molecule etc. are with good absorption property.Patent CN201410205188.3 is adopted
Compounded with peanut shell and other natural materials such as sawdust, straw, luffa, rice hulls etc., be prepared for natural material adsorbent,
Then the improvement of sewage is used it for, is worked well；Patent CN201210006309.2 uses peanut shell, epoxychloropropane, three
Ethene tetramine and DMF are prepared for modified peanut shell cationic adsorbent for raw material, use it for adsorbing water
Cr (VI) in body, substantially, adsorption rate reaches more than 90% to adsorption effect；Patent CN201210544807.2 uses sodium metasilicate water
Solution, N,N-dimethylformamide, MEA, vulcanized sodium and highly basic carry out chemical modification and are prepared for high-ratio surface to peanut shell
Product, the peanut shell of structure-rich, use it for oil filter, greatly reduce the discharge of vehicle exhaust harmful substance；Patent
Peanut shell is prepared into activated carbon, and extrusion forming by CN201310187454.X, and this Activated Carbon Made from Peanut Shells is in peanut oil
Toxin has good removal effect；Patent CN201611116380.0 uses peanut shell, diatomite, sodium lignin sulfonate, chlorine
Change hydroxyl aluminium, cysteine and myrrh sterone are prepared for the sorbing material for Adsorption of Heavy Metals ion.Although on natural biological
The research of matter peanut shell sorbing material is a lot, but still has some problems to limit the commercial Application of peanut shell sorbing material.For example
(1) the modified of peanut shell is needed to use organic solvent, and pollution can be produced in preparation process；(2) the modified preparation process of peanut shell
It is cumbersome, complex process；(3) peanut shell high temperature cabonization expends amount of heat；(4) peanut shell how is further improved to pollutant
Adsorption capacity etc..Deficiency in the preparation of current peanut shell sorbing material and application, the present invention utilizes simple Hydrothermal Synthesiss
Technology is prepared for a kind of efficient peanut shell sorbing material.
Had important practical significance for processing the pollutant in water using peanut shell sorbing material, while, it is expected to
Water environment pollution is controlled and field of environment protection has potential application value.Therefore, a kind of efficient natural biomass flower is invented
Raw shell adsorbent, preparation method and application seem of crucial importance in terms of water process.
The content of the invention
The purpose of the present invention is for not enough present in current techniques, there is provided a kind of natural biomass adsorbent and its preparation
Method and application., with peanut shell as raw material, by alkaline solution, joint hydrothermal carbonization reaction will for the natural biomass adsorbent
The good composition of absorption property is separated with other impurities in peanut shell, has obtained natural biomass adsorbent.The present invention overcomes
Peanut shell is modified the low deficiency of the organic solvent that needs to use, complex process, adsorption capacity in current techniques, additionally, this hair
Bright prepared peanut shell sorbing material preferably can be suspended in water body, use it for absorption, the absorption of pollutant in water body
Effect is good, and absorption is finished, and can settle in a short time, and energy consumption is greatlyd save in sorbing material removal process.
The technical scheme is that：
A kind of natural biomass adsorbent, is obtained by following methods, is comprised the following steps：
(1) preparation of peanut shell powder：Dried after the peanut shell cleaning that will be collected, then crush, sieve, obtaining particle diameter is
The peanut shell powder of 0.06~0.1mm；
(2) soluble hydroxide is dissolved in distilled water, obtains alkaline solution；
Described hydroxide is NaOH, potassium hydroxide；The concentration of alkaline solution is 0.1~5mol/L；
(3) preparation of natural biomass peanut shell adsorbent：Peanut shell powder in step (1) is added to step (2)
In alkaline solution in, then move into autoclave, carry out 6~12h of hydro-thermal reaction at 160~200 DEG C, reaction is finished, will
Autoclave is cooled to room temperature, and the solid product that will be obtained distilled water is centrifuged, washing, and 6~10h is dried in 100 DEG C of baking ovens, is obtained
Efficient natural biomass adsorbent is arrived；
Wherein, the alkaline solution of every 60~80mL adds 1~5g peanut shell powder；
According to step (2), the preferred concentration of the alkaline solution is 0.5~5mol/L；
The application process of described natural biomass adsorbent, for going organic dyestuff or heavy metal ion in water removal.
The application process of described natural biomass adsorbent, specifically includes following steps：
Natural biomass adsorbent is added in pending solution, 0.5~2h is stirred in room temperature~30 DEG C, complete absorption
Treatment；
Wherein, addition is 1~10mg natural biomass adsorbents in the pending solution of every mL；
Described pending solution is the solution containing organic dyestuff or the solution containing heavy metal inorganic salts；
The concentration of organic dyestuff is 100~300mg/L in the described solution containing organic dyestuff；
The concentration of heavy metal ion is 100~300mg/L in the described solution containing heavy metal inorganic salts；
Described organic dyestuff is specially a kind of organic dye solution or various of methylene blue, methyl orange, rhodamine B
Mixing organic dye solution；
Described heavy metal inorganic salts are specially soluble copper salt, soluble zinc salt, soluble lead salt and soluble cadmium salt
In one or more.
Described soluble copper salt is copper chloride, copper nitrate or copper sulphate；Soluble zinc salt is zinc chloride or zinc nitrate；Can
Dissolubility lead salt is plumbi nitras；Soluble cadmium salt is caddy.
The present invention has the following advantages that and effect compared with prior art：
(1) present invention has good absorption property using efficient natural biomass peanut shell adsorbent, and it is to there is engine dyeing
The adsorption capacity of material or heavy metal ion reach 100mg/g and more than, efficient natural biomass peanut shell adsorbent can be natural
Sedimentation, is conducive to the recovery of powder sample in application process, and the recycling of powder sample is the head for restricting its scale application
Problem is wanted, the technology solves its important problem in scale application；
(2) present invention prepare efficient natural biomass peanut shell adsorbent have it is block or laminar structured, it is this multiple
Compound has good hydrophily and absorption property, compared with other modified peanut shell sorbing materials, natural biomass peanut
Shell adsorbent goes the effect of removal organic polluter or heavy metal ion to be higher by more than 30%；
(3) present invention is using the organic dyestuff or heavy metal ion in efficient natural biomass peanut shell sorbent treatment water
Enrich the relative theory of organic dyestuff or heavy mental treatment in water body；
(4) efficient natural biomass peanut shell adsorbent prepared by the present invention can preferably disperse in water, adsorption efficiency
High, adsorbent absorption can be turned waste into wealth after finishing, and the treatment of wastes with processes of wastes against one another will adsorb heavy metal ion by Hydrothermal Synthesiss again
Adsorbent is transformed into a kind of composite, and applies it to the treatment of organic wastewater, therefore, efficient natural biomass flower
Raw shell adsorbent has potential application value in fields such as water process, marine environmental protection, water pollution controls；
(5) present invention prepares the letter of efficient natural biomass peanut shell adsorbent technical process using simple hydro-thermal reaction
Single, instrument and equipment is cheap, is reacted at 160-200 DEG C, mild condition, when processing the organic dyestuff or heavy metal ion in water
Can natural sedimentation separate, with preferable feasibility.
Brief description of the drawings
Fig. 1 is the stereoscan photograph of natural biomass peanut shell adsorbent obtained in embodiment 7.
Specific embodiment
Further detailed description, but embodiments of the present invention not limited to this are done to the present invention with reference to embodiment.
The adsorption capacity of organic dyestuff is Q=(C0-Ce)·V/m
Wherein：C0:The initial concentration (mg/L) of organic dyestuff；
Ce:The concentration (mg/L) of organic dyestuff when reaching adsorption equilibrium；
V：The volume (L) of organic dye solution；
m:The quality (g) of natural biomass peanut shell adsorbent.
The adsorption capacity of heavy metal ion is Q=(C0-Ce)·V/m
Wherein：C0:The initial concentration (mg/L) of heavy metal ion；
Ce:The concentration (mg/L) of heavy metal ion when reaching adsorption equilibrium；
V：The volume (L) of heavy metal ion solution；
m:The quality (g) of natural biomass peanut shell adsorbent.
Embodiment 1
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 6h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 5g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 0.5mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：1.5g peanut shell powder is weighed, is dispersed in 60mL's
In the sodium hydroxide solution of 0.5mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 8h at 180 DEG C, has reacted
Finish, autoclave be cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 6h is dried in 100 DEG C of baking ovens,
It is standby；
(4) adsorption experiment of organic dyestuff：Weigh 50mg natural biomass peanut shell adsorbents, be added thereto to 50mL,
The methylene blue solution of 150mg/L, in 0.5h is stirred at 25 DEG C, absorption is finished, and this is measured by ultraviolet-visible spectrophotometer
When methylene blue solution concentration be 20mg/L, then its adsorption capacity be 130mg/g.
Embodiment 2
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 8h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 20g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 2mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：3.6g peanut shell powder is weighed, is dispersed in 80mL's
In the sodium hydroxide solution of 2mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 6h at 160 DEG C, and reaction is finished,
Autoclave is cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 8h is dried in 100 DEG C of baking ovens, standby
With；
(4) adsorption experiment of organic dyestuff：Weigh 100mg natural biomass peanut shell adsorbents, be added thereto to 50mL,
The methyl orange solution of 210mg/L, in 1h is stirred at 25 DEG C, absorption is finished, and now first is measured by ultraviolet-visible spectrophotometer
The concentration of base orange solution is 5mg/L, then its adsorption capacity is 102.5mg/g.
Embodiment 3
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 10h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 50g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 5mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：3.6g peanut shell powder is weighed, is dispersed in 80mL's
In the sodium hydroxide solution of 5mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 8h at 180 DEG C, and reaction is finished,
Autoclave is cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 10h is dried in 100 DEG C of baking ovens, standby
With；
(4) adsorption experiment of organic dyestuff：Weigh 50mg natural biomass peanut shell adsorbents, be added thereto to 50mL,
The rhodamine B solution of 300mg/L, in 1h is stirred at 20 DEG C, absorption is finished, and is measured now by ultraviolet-visible spectrophotometer
The concentration of rhodamine B solution is 80mg/L, then its adsorption capacity is 220mg/g.
Embodiment 4
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 10h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 15g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 1.5mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：3.6g peanut shell powder is weighed, is dispersed in 80mL's
In the sodium hydroxide solution of 1.5mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 8h at 180 DEG C, has reacted
Finish, autoclave be cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 10h is dried in 100 DEG C of baking ovens,
It is standby；
(4) adsorption experiment of heavy metal ion：50mg natural biomass peanut shell adsorbents are weighed, is added thereto to
The copper ion solution of 50mL, 130mg/L, in 2h is stirred at 30 DEG C, absorption is finished, and this is measured by atomic absorption spectrophotometer
When copper ion solution concentration be 10mg/L, then its adsorption capacity be 120mg/g.
Embodiment 5
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 6h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 30g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 3mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：2.5g peanut shell powder is weighed, is dispersed in 60mL's
In the sodium hydroxide solution of 3mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 10h at 180 DEG C, has reacted
Finish, autoclave be cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 10h is dried in 100 DEG C of baking ovens,
It is standby；
(4) adsorption experiment of heavy metal ion：50mg natural biomass peanut shell adsorbents are weighed, is added thereto to
The lead ion solution of 50mL, 100mg/L, in 2h is stirred at 20 DEG C, absorption is finished, and this is measured by atomic absorption spectrophotometer
When lead ion solution concentration be 0mg/L, then its adsorption capacity be 100mg/g.
Embodiment 6
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 8h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 40g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 4mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：3g peanut shell powder is weighed, is dispersed in 60mL's
In the sodium hydroxide solution of 4mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 12h at 160 DEG C, has reacted
Finish, autoclave be cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 8h is dried in 100 DEG C of baking ovens,
It is standby；
(4) adsorption experiment of heavy metal ion：50mg natural biomass peanut shell adsorbents are weighed, is added thereto to
The cadmium-ion solution of 50mL, 200mg/L, stirs 1.5h at room temperature, and absorption is finished, and is measured by atomic absorption spectrophotometer
Now the concentration of cadmium-ion solution is 90mg/L, then its adsorption capacity is 110mg/g.
Embodiment 7
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 8h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 10g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 1mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：2g peanut shell powder is weighed, is dispersed in 60mL's
In the sodium hydroxide solution of 1mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 6h at 200 DEG C, and reaction is finished,
Autoclave is cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 10h is dried in 100 DEG C of baking ovens, standby
With.The SEM of prepared natural biomass peanut shell adsorbent as shown in figure 1, as shown in Figure 1, natural biological
Matter peanut shell adsorbent is in porous laminated structure, and at 5-8 μm or so, this loose structure is conducive to the infiltration of pollutant in aperture,
Improve adsorption efficiency；
(4) adsorption experiment of heavy metal ion：100mg natural biomass peanut shell adsorbents are weighed, is added thereto to
The zinc ion solution of 50mL, 300mg/L, in 1.5h is stirred at 15 DEG C, absorption is finished, and is measured by atomic absorption spectrophotometer
Now the concentration of zinc ion solution is 20mg/L, then its adsorption capacity is 140mg/g.
Embodiment 8
(1) preparation of peanut shell powder：The peanut shell of collection is cleaned up, is then placed into being done in 105 DEG C of baking oven
Dry 8h, dried peanut shell is crushed in pulverizer, sieving for standby, obtains the peanut shell powder that particle diameter is 0.06-0.1mm
End；
(2) preparation of alkaline solution：The NaOH of 15g is weighed, is dissolved in distilled water, it is completely molten at room temperature
Solution, is transferred in the volumetric flask of 250mL, and with distilled water diluting to scale, the sodium hydroxide solution for being configured to 1.5mol/L is standby；
(3) preparation of natural biomass peanut shell adsorbent：3g peanut shell powder is weighed, is dispersed in 60mL's
In the sodium hydroxide solution of 1.5mol/L, be transferred in 100mL autoclaves carries out hydro-thermal reaction 10h at 160 DEG C, has reacted
Finish, autoclave be cooled to room temperature, the solid product that will be obtained distilled water is centrifuged, washing, and 10h is dried in 100 DEG C of baking ovens,
It is standby；
(4) adsorption experiment of heavy metal ion：50mg natural biomass peanut shell adsorbents are weighed, is added thereto to
The lead ion solution of 50mL, 300mg/L, in 0.5h is stirred at 20 DEG C, absorption is finished, and is measured by atomic absorption spectrophotometer
Now the concentration of lead ion solution is 60mg/L, then its adsorption capacity is 240mg/g.
Embodiment 9
Natural biomass peanut shell adsorbent in selection embodiment 4 in (4th) step by absorption 130mg/L copper ions,
It is carried out into second hydro-thermal reaction in aqueous, so as to carbon/Cu/Cu is obtained2O composites, take the 10mg composites
It is dispersed in the methyl orange solution that concentration is 10mg/L, after absorption 0.5h reaches adsorption equilibrium, is fallen with syringe filtering multiple
Condensation material, the remaining dense of methyl orange is determined at maximum absorption wavelength (465nm) place of methyl orange with 722 type visible spectrophotometers
Degree C0, then light-catalyzed reaction is carried out under simulated solar irradiation, reaction is finished, and falls composite with syringe filtering, in methyl orange
Maximum absorption wavelength (465nm) place with 722 type visible spectrophotometers determine methyl orange residual concentration C.Final methyl orange
Degradation rate be η=(1-C/C0) * 100%=(1-0.002/0.672) * 100%=99.7%
Unaccomplished matter of the present invention is known technology.
Claims (7)
1. a kind of natural biomass adsorbent, it is characterized by the adsorbent is obtained by following methods, comprises the following steps：
（1）The preparation of peanut shell powder：Dried after the peanut shell cleaning that will be collected, then crush, sieve, it is 0.06 to obtain particle diameter
The peanut shell powder of~0.1 mm；
（2）Soluble hydroxide is dissolved in distilled water, alkaline solution is obtained；
Described hydroxide is NaOH, potassium hydroxide；The concentration of alkaline solution is 0.1~5 mol/L；
（3）The preparation of natural biomass peanut shell adsorbent：By step（1）In peanut shell powder be added to step（2）In
In alkaline solution, then move into autoclave, the h of hydro-thermal reaction 6~12 is carried out at 160~200 DEG C, reaction is finished, by height
Pressure kettle is cooled to room temperature, and the solid product that will be obtained distilled water is centrifuged, washing, and 6~10 h are dried in 100 DEG C of baking ovens, is obtained
Efficient natural biomass adsorbent is arrived；
Wherein, the alkaline solution of every 60~80 mL adds 1~5 g peanut shell powder.
2. natural biomass adsorbent as claimed in claim 1, it is characterized by according to step（2）, the alkaline solution it is excellent
It is 0.5~5 mol/L to select concentration.
3. the application process of natural biomass adsorbent as claimed in claim 1, it is characterized by for going in water removal to have engine dyeing
Material or heavy metal ion.
4. the application process of natural biomass adsorbent as claimed in claim 3, it is characterized by specifically including following steps：
Natural biomass adsorbent is added in pending solution, 0.5-2 h is stirred in room temperature~30 DEG C, complete absorption
Treatment；
Wherein, addition is 1-10 mg natural biomass adsorbents in the pending solution of every mL；
Described pending solution is the solution containing organic dyestuff or the solution containing heavy metal inorganic salts；
The concentration of organic dyestuff is 100~300 mg/L in the described solution containing organic dyestuff；
The concentration of heavy metal ion is 100~300 mg/L in the described solution containing heavy metal inorganic salts.
5. the application process of natural biomass adsorbent as claimed in claim 3, it is characterized by described organic dyestuff is specific
It is methylene blue, methyl orange, a kind of organic dye solution of rhodamine B or various mixing organic dye solutions.
6. the application process of natural biomass adsorbent as claimed in claim 3, it is characterized by described heavy metal inorganic salts
One or more specially in soluble copper salt, soluble zinc salt, soluble lead salt and soluble cadmium salt.
7. the application process of natural biomass adsorbent as claimed in claim 6, it is characterized by described soluble copper salt is
Copper chloride, copper nitrate or copper sulphate；Soluble zinc salt is zinc chloride or zinc nitrate；Soluble lead salt is plumbi nitras；Soluble cadmium
Salt is caddy.
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| CN108658568A (en) * | 2018-05-30 | 2018-10-16 | 安徽润晟建设有限公司 | A kind of preparation method of cracking resistance insulating brick |
| CN109225189A (en) * | 2018-10-18 | 2019-01-18 | 苏州科技大学 | Be carbonized peanut shell load nano-titanium dioxide material and preparation method thereof |
| CN110975803A (en) * | 2019-11-19 | 2020-04-10 | 南京工程学院 | Method for improving quality of durian shell and ammonia nitrogen wastewater through copolymerization |
| CN111011161A (en) * | 2019-12-26 | 2020-04-17 | 郑州大学 | Red mud soil matrix and preparation method thereof |
| CN111621034A (en) * | 2019-02-27 | 2020-09-04 | 中国科学院大连化学物理研究所 | Biomass modification method |
| CN113713771A (en) * | 2021-09-29 | 2021-11-30 | 长春工业大学 | Method for preparing adsorbing material and pentosan through biomass catalysis hydrothermal method |
| CN114288996A (en) * | 2022-01-11 | 2022-04-08 | 三明医学科技职业学院 | Preparation method of printing and dyeing sewage treatment agent based on biomass |
| CN114392722A (en) * | 2022-01-28 | 2022-04-26 | 湖南烯富环保科技有限公司 | Biochar @ five-membered metal oxide composite defluorination material and preparation and application thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658568A (en) * | 2018-05-30 | 2018-10-16 | 安徽润晟建设有限公司 | A kind of preparation method of cracking resistance insulating brick |
| CN109225189A (en) * | 2018-10-18 | 2019-01-18 | 苏州科技大学 | Be carbonized peanut shell load nano-titanium dioxide material and preparation method thereof |
| CN111621034A (en) * | 2019-02-27 | 2020-09-04 | 中国科学院大连化学物理研究所 | Biomass modification method |
| CN111621034B (en) * | 2019-02-27 | 2021-11-09 | 中国科学院大连化学物理研究所 | Biomass modification method |
| CN110975803A (en) * | 2019-11-19 | 2020-04-10 | 南京工程学院 | Method for improving quality of durian shell and ammonia nitrogen wastewater through copolymerization |
| CN110975803B (en) * | 2019-11-19 | 2022-05-03 | 南京工程学院 | Method for improving quality of durian shell and ammonia nitrogen wastewater through copolymerization |
| CN111011161A (en) * | 2019-12-26 | 2020-04-17 | 郑州大学 | Red mud soil matrix and preparation method thereof |
| CN113713771A (en) * | 2021-09-29 | 2021-11-30 | 长春工业大学 | Method for preparing adsorbing material and pentosan through biomass catalysis hydrothermal method |
| CN114288996A (en) * | 2022-01-11 | 2022-04-08 | 三明医学科技职业学院 | Preparation method of printing and dyeing sewage treatment agent based on biomass |
| CN114392722A (en) * | 2022-01-28 | 2022-04-26 | 湖南烯富环保科技有限公司 | Biochar @ five-membered metal oxide composite defluorination material and preparation and application thereof |
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