CN107082467A - FeOOH nanometer rods/Foam carbon composite material and preparation method and application - Google Patents
FeOOH nanometer rods/Foam carbon composite material and preparation method and application Download PDFInfo
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- CN107082467A CN107082467A CN201710166405.6A CN201710166405A CN107082467A CN 107082467 A CN107082467 A CN 107082467A CN 201710166405 A CN201710166405 A CN 201710166405A CN 107082467 A CN107082467 A CN 107082467A
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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
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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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—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 physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
- B01J20/28007—Sorbent size or size distribution, e.g. particle size with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like
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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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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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- 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
- C02F2101/103—Arsenic compounds
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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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Abstract
The invention discloses a kind of FeOOH nanometer rods/Foam carbon composite material and preparation method and application, the FeOOH nanometer rods/Foam carbon composite material is that, using Carbon foam as substrate, and FeOOH nanometer rods uniform load is on this substrate.FeOOH nanometer rods/the Foam carbon composite material is to use hydrothermal synthesis method by FeOOH nanometer rods uniform load in Carbon foam substrate.FeOOH nanometer rods/the Foam carbon composite material can be directly used as removing the adsorbent of arsenic in water body element.Not only high adsorption capacity, secondary pollution are small by the present invention, and it is easily separated reclaim, mass transfer rate it is fast, with low cost, arsenic in water body element can be carried out rapidly and efficiently and selective removal.
Description
Technical field
The present invention relates to technical field of sewage, more particularly to a kind of FeOOH nanometer rods/Carbon foam composite wood
Material and preparation method and application.
Background technology
Arsenic element is a kind of hypertoxicity polluter with teratogenesis mutagenesis, is widespread in nature.People
, can be to the digestion decorum, respiratory system, nerveous system if body is exposed in the environment with low-concentration arsenic or High Concentration of Arsenic for a long time
System, cardiovascular system, reproductive system etc. bring the harm of irreversibility, and death is even resulted in when serious.The World Health Organization
Regulation, the concentration limit that human body quotes arsenic in water source is 10 μ g/L.Arsenic element is main with trivalent arsenic (H in water body environment3AsO3、
H2AsO3 -、HAsO3 2-) and pentavalent arsenic (H3AsO4、H2AsO4 -、HAsO4 2-) form presence, and with the toxicity of trivalent arsenic and in water
In migration it is stronger.In order to protect health, eliminate in the negative effect that arsenic pollution is brought to the ecosystem, control water body
The content of arsenic element has become key issue urgently to be resolved hurrily.
At present, the minimizing technology of arsenic in water body element mainly includes coagulant sedimentation, biological arsenic removal method, electrocoagulation, film
Filtration method, preoxidation, ion-exchange, absorption method etc..Compared with other method, absorption method, which has, designs simple, operation appearance
Easily, insensitive to toxic pollutant, the advantages of will not introducing new noxious pollutant can not only overcome arsenic element to reclaim difficult
Shortcoming, and can solve the problem that in coagulant sedimentation that chemicals expends the problems such as high and biological arsenic removal method capital construction input is big,
Therefore absorption method is considered as efficient and both economical water process mode.In the prior art, activated carbon, zeolite, metal oxygen
The conventional adsorbents such as compound, clay are widely applied removing arsenic in water, but these conventional adsorbents are existed that adsorbance is small, efficiency
The problems such as low, difficult separation and recycling.
The content of the invention
For above-mentioned weak point of the prior art, the invention provides a kind of FeOOH nanometer rods/Carbon foam
Composite and preparation method and application, not only high adsorption capacity, secondary pollution are small, and easily separated recovery, mass transfer rate
Hurry up, it is with low cost, arsenic in water body element can be carried out rapidly and efficiently and selective removal.
The purpose of the present invention is achieved through the following technical solutions：
A kind of FeOOH nanometer rods/foam carbon composite, it is and the FeOOH using Carbon foam as substrate
Nanometer rods uniform load is on this substrate.
The preparation method of above-mentioned FeOOH nanometer rods/Foam carbon composite material, comprises the following steps：
Step A, according to every 120 μ L Solute mass fractions for 37.5% hydrochloric acid solution using 11.88mL deionized waters and
The ratio of 28mL acetonitriles, hydrochloric acid solution, deionized water and acetonitrile are mixed, so that the first reaction solution is made；
Step B, according to every reaction solutions of 40ml first use 0.0135mol FeCl3With 0.04mol NaNO3Ratio,
By FeCl3And NaNO3It is dissolved in the first reaction solution, and the Carbon foam added after stirring 30min after being acidified, continue stirring 1 small
When, transfer it in reactor, hydro-thermal reaction is carried out 4 hours with 100 DEG C, then cleaned and dried, so as to make
Obtain above-mentioned FeOOH nanometer rods/Foam carbon composite material.
Preferably, the Carbon foam after described acidifying is prepared from using following methods：With 5 DEG C per minute of heating rate
Foam is heated, until being warming up to 700 DEG C, 2 hours are incubated, the nitric acid that concentration is 3.5mol/L is then put it into
In solution, boiled 2 hours with 120 DEG C, so that the Carbon foam after acidifying is made.
Preferably, described progress clean and dry including：It is multiple using deionized water cleaning, it is then placed in drying baker
It is dried with 60 DEG C of drying temperature.
Above-mentioned FeOOH nanometer rods/Foam carbon composite material is used as the adsorbent for removing arsenic in water body element.
Preferably, consumption of the adsorbent in water body is 0.5g/L.
Preferably, when the adsorbent carries out adsorption treatment in water body, the control of the pH value of water body 7, adsorption treatment when
Between control at 24 hours.
As seen from the above technical solution provided by the invention, FeOOH nanometer rods/bubble provided by the present invention
Foam carbon composite uses hydrothermal synthesis method by FeOOH nanometer rods uniform load in Carbon foam substrate.The hydroxyl is aoxidized
Iron nanometer rods/Foam carbon composite material can be directly used as removing the adsorbent of arsenic in water body element, be adsorbed according to Lang Gemiaoer
Model calculate obtain its maximum removal amount to trivalent arsenic in water body can reach 103.4mg/g, to pentavalent arsenic in water body most
Big removal amount can reach 172.9mg/g.Compared with prior art, FeOOH nanometer rods/foam provided by the present invention
Not only high adsorption capacity, secondary pollution are small for carbon composite, and it is easily separated reclaim, mass transfer rate it is fast, with low cost, can be to water
Arsenic element is carried out rapidly and efficiently and selective removal in body.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is that the ESEM for FeOOH nanometer rods/Foam carbon composite material that the embodiment of the present invention 1 is provided shines
Piece.
Fig. 2 is the x-ray diffraction pattern for FeOOH nanometer rods/Foam carbon composite material that the embodiment of the present invention 1 is provided
Spectrum.
Fig. 3 is FeOOH nanometer rods/Foam carbon composite material of the offer of the embodiment of the present invention 1 in different time points pair
The adsorption dynamics adsorption kinetics performance schematic diagram and fitting result of trivalent arsenic and pentavalent arsenic in water body.
Fig. 4 is FeOOH nanometer rods/Foam carbon composite material of the offer of the embodiment of the present invention 1 in different arsenic concentration bars
To trivalent arsenic in water body and the adsorption effect schematic diagram of pentavalent arsenic under part.
Fig. 5 is that FeOOH nanometer rods/Foam carbon composite material that the embodiment of the present invention 1 is provided is dense in different anions
To trivalent arsenic in water body and the adsorption effect schematic diagram of pentavalent arsenic under degree.
Embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
The embodiment of invention, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to protection scope of the present invention.
FeOOH nanometer rods/Foam carbon composite material provided below the embodiment of the present invention and preparation method thereof
It is described in detail with application.
A kind of FeOOH nanometer rods/Foam carbon composite material, it is and the FeOOH using Carbon foam as substrate
Nanometer rods uniform load is on this substrate.
Specifically, the FeOOH nanometer rods/Foam carbon composite material preferably uses hydrothermal synthesis method by hydroxyl oxygen
Change iron nanometer rods uniform load in Carbon foam substrate, it specifically may comprise steps of：
Step A, according to every 120 μ L Solute mass fractions for 37.5% hydrochloric acid solution using 11.88mL deionized waters and
The ratio of 28mL acetonitriles, hydrochloric acid solution, deionized water and acetonitrile are mixed, so that the first reaction solution is made.
Step B, according to every reaction solutions of 40ml first use 0.0135mol FeCl3With 0.04mol NaNO3Ratio,
By FeCl3And NaNO3It is dissolved in the first reaction solution, and the Carbon foam added after stirring 30min after being acidified, continue stirring 1 small
When, transfer it in reactor, hydro-thermal reaction is carried out 4 hours with 100 DEG C, then cleaned and dried (preferably with
Deionized water cleaning is multiple, is then placed in drying baker and is dried with 60 DEG C of drying temperature), so that above-mentioned hydroxyl is made
Base ferric oxide nano rod/Foam carbon composite material.
In stepb, the Carbon foam after described acidifying can be prepared from using following methods：With 5 DEG C per minute of liter
Warm speed carries out heating carbonization treatment to foam, until being warming up to 700 DEG C, is incubated 2 hours, then putting it into concentration is
In 3.5mol/L salpeter solution, boiled 2 hours with 120 DEG C, so as to can be prepared by the Carbon foam after acidifying.In actual applications,
Preferably the Carbon foam after one piece of 3 × 1.5 × 0.6cm acidifying is used in step B according to every reaction solutions of 40ml first.
Further, FeOOH nanometer rods/Foam carbon composite material provided by the present invention can be directly used as
Except the adsorbent of arsenic element in water body, consumption of the adsorbent in water body is preferably 0.5g/L, and the adsorbent is in water body
During middle progress adsorption treatment, the pH value of water body is preferably controlled in 7, and the time of adsorption treatment is preferably controlled in 24 hours.In reality
In, adsorbent provided by the present invention is to trivalent arsenic in water body (i.e. As (III)) and the absorption property of pentavalent arsenic (i.e. As (V))
It can be tested using following scheme：Prepare certain density As (III) solution and As (V) solution, adjust solution temperature and
PH value, adds adsorbent provided by the present invention, arsenic content is determined with ICP after lasting stirring, so that the adsorbent pair can be obtained
The adsorption capacity of arsenic；Prepare certain density anion SO4 2-、NO3 -、Cl-、PO4 3-Mixed solution, in the pH of the mixed solution
Value and temperature add adsorbent provided by the present invention when reaching preferably, persistently stir 24 hours after, with ICP determine As (III) and
As (V) content, the adsorbance of gained is selective absorption of the adsorbent provided by the present invention in the case where a variety of anion coexist
Performance.
As fully visible, compared with prior art, not only high adsorption capacity, secondary pollution are small for the embodiment of the present invention, Er Qieyi
Separation and recovery, mass transfer rate are fast, with low cost, and arsenic in water body element can be carried out rapidly and efficiently and selective removal.
In order to more clearly from show technical scheme provided by the present invention and produced technique effect, below with tool
FeOOH nanometer rods/Foam carbon composite material that body embodiment is provided the embodiment of the present invention and preparation method thereof is with answering
With being described in detail.
Embodiment 1
A kind of FeOOH nanometer rods/Foam carbon composite material, is prepared from using following steps：
Step a, by 120 μ L Solute mass fractions be 37.5% hydrochloric acid solution, 11.88mL deionized waters and 28mL acetonitriles
Mix, so that the first reaction solution is made.
Step b, with 5 DEG C per minute of heating rate foam is heated, until being warming up to 700 DEG C, is incubated 2 hours,
Put it into the salpeter solution that concentration is 3.5mol/L, boiled 2 hours with 120 DEG C again, the Carbon foam after acidifying is made.
Step c, the FeCl by 0.0135mol3With 0.04mol NaNO3It is dissolved in the first reaction solution made from 40ml steps a
In, and the Carbon foam added after stirring 30min after being acidified made from step b, continue to stir 1 hour, transfer it to
In 50ml reactors, hydro-thermal reaction is carried out 4 hours with 100 DEG C, then it is multiple using deionized water cleaning, it is then placed in drying baker
It is dried with 60 DEG C of drying temperature, so that FeOOH nanometer rods/Foam carbon composite material is made.
Specifically, the FeOOH nanometer rods provided the embodiment of the present invention 1/Foam carbon composite material carries out following
Pattern and performance detection：
(1) using ESEM to the Carbon foam and step c systems after acidifying made from step b in the embodiment of the present invention 1
FeOOH nanometer rods/the Foam carbon composite material obtained is observed, so as to obtain stereoscan photograph as shown in Figure 1；
Wherein, the scanning electron microscopic picture of Carbon foams of Fig. 1 a after to be that step b is obtained in the embodiment of the present invention 1 be acidified, Fig. 1 b, Fig. 1 c and
Fig. 1 d are FeOOH nanometer rods/Foam carbon composite material made from step c in the embodiment of the present invention 1 in different magnification ratios
When scanning electron microscopic picture.It can be seen that by Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d：It is sour made from step b in the embodiment of the present invention 1
Carbon foam after change is tridimensional network, and FeOOH nanometer rods/foam made from step c in the embodiment of the present invention 1
In carbon composite, it is coarse that foam carbon surface becomes, and is uniformly dispersed with FeOOH nanometer rods.
(2) the FeOOH nanometer rods/Carbon foam provided using x-ray diffractometer the embodiment of the present invention 1 is combined
Material is observed, so as to obtain X-ray diffracting spectrum as shown in Figure 2.As seen from Figure 2：The product of foam carbon surface
For FeOOH.
(3) use 1000ppm trivalent arsenic solution and pentavalent arsenic solution preparation 10ppm trivalent arsenic solution and pentavalent arsenic are molten
Liquid, takes out 9 parts of 20ml 10ppm trivalent arsenic solution and pentavalent arsenic solution, every part of solution is successively with 0.05mol/L's respectively
HNO3/ NaOH regulation pH value is 7, and the hydroxyl oxygen that the 10mg embodiment of the present invention 1 is provided then is separately added into every part of solution
Change iron nanometer rods/Foam carbon composite material and be used as adsorbent；At once manual time-keeping is used after adsorbent to be added, and is held at 25 DEG C
Continuous stirring, then respectively 5min, 10min, 15min, 20min, 30min, 60min, 120min, 270min, 340min,
500min, 630min and 760min pipette partially liq and centrifuge and cross 0.22 μm of filter membrane, gather filtrate and carry out mark, finally
Test the concentration of these trivalent arsenic solutions (i.e. As (III)) of different time points and pentavalent arsenic solution (i.e. As (V)), thus obtain as
The adsorption dynamics adsorption kinetics performance schematic diagram and fitting result of the trivalent arsenic in different time points are to water body and pentavalent arsenic shown in Fig. 3；
Wherein, FeOOH nanometer rods/Foam carbon composite material that Fig. 3 a are provided by the embodiment of the present invention 1 is in different time points pair
The adsorption dynamics adsorption kinetics performance schematic diagram of trivalent arsenic and pentavalent arsenic in water body, Fig. 3 b are in Fig. 3 a using pseudo-first-order kinetic model
The fitting result of data.It can be seen that by Fig. 3 a and Fig. 3 b：FeOOH nanometer rods/bubble that the embodiment of the present invention 1 is provided
Foam carbon composite in neutral conditions when to the arsenic absorption property of low concentration preferably, arsenic removal efficiency is higher；Meanwhile, the present invention
FeOOH nanometer rods/Foam carbon composite material that embodiment 1 is provided to the absorption of arsenic in 6 hours with regard to can reach completely
Remove, thus it is shown that higher adsorption efficiency.
(4) using 1000ppm trivalent arsenic solution and pentavalent arsenic solution prepare 5ppm, 10ppm, 20ppm, 40ppm,
80ppm, 100ppm, 200ppm, 400ppm, 800ppm, 1000ppm trivalent arsenic solution and pentavalent arsenic solution, take this several not
With each 20ml of arsenic solution of concentration, and it is 7 to adjust pH value, and the 10mg embodiment of the present invention 1 is then separately added into every part of solution
FeOOH nanometer rods/the Foam carbon composite material provided is persistently stirred 24 hours as adsorbent, and at 25 DEG C, then
Pipette partially liq to centrifuge and cross 0.22 μm of filter membrane, gather filtrate and carry out mark, these trivalent arsenic solutions are tested respectively (i.e.
As (III)) and pentavalent arsenic solution (i.e. As (V)) concentration so that obtain it is as shown in Figure 4 under the conditions of different arsenic concentrations to water
The adsorption effect schematic diagram of trivalent arsenic and pentavalent arsenic in body.As seen from Figure 4：The hydroxyl oxygen that the embodiment of the present invention 1 is provided
Change iron nanometer rods/Foam carbon composite material in relatively low arsenic concentration, its adsorbance constantly increases with the increase of arsenic concentration；And
After arsenic concentration is more than 400ppm, with the increase of arsenic concentration, its adsorbance is varied less；Calculated according to Lang Gemiaoer Adsorption Models,
FeOOH nanometer rods/Foam carbon composite material that the embodiment of the present invention 1 is provided is removed to the maximum of trivalent arsenic in water body
Amount can reach that 103.4mg/g, the maximum removal amount to pentavalent arsenic in water body can reach 172.9mg/g, with existing adsorbent
Possess great advantage compared to the present invention.
(5) compound concentration is 20mg/L trivalent arsenic solution and pentavalent arsenic solution, then using the trivalent arsenic solution and five
Valency arsenic solution respectively with NaCl, Na2SO4、KNO3、NaH2PO4Mixing, so as to make trivalent arsenic and NaCl mixed solution, three
Valency arsenic and Na2SO4Mixed solution, trivalent arsenic and KNO3Mixed solution, trivalent arsenic and NaH2PO4Mixed solution, pentavalent arsenic
With NaCl mixed solution, pentavalent arsenic and Na2SO4Mixed solution, pentavalent arsenic and KNO3Mixed solution, pentavalent arsenic with
NaH2PO4Each 20ml of mixed solution, the pH value of these mixed solutions is then adjusted to 7, and in every part of mixed solution point
Not Jia Ru the FeOOH nanometer rods/Foam carbon composite material that is provided of the 10mg embodiment of the present invention 1 as adsorbent, 25
Persistently stirred at DEG C 24 hours, then pipette partially liq and centrifuged and cross 0.22 μm of filter membrane, gathered filtrate and carry out mark, respectively
The concentration of these trivalent arsenic solutions (i.e. As (III)) and pentavalent arsenic solution (i.e. As (V)) is tested, so as to obtain as shown in Figure 5
Under different anions concentration to water body in trivalent arsenic and pentavalent arsenic adsorption effect schematic diagram.As seen from Figure 5：Although this
FeOOH nanometer rods/Foam carbon composite material that inventive embodiments 1 are provided is under the interference of other competing ions to three
The absorption property of valency arsenic and pentavalent arsenic has declined, but it still remains very high clearance to trivalent arsenic and pentavalent arsenic.
As fully visible, not only high adsorption capacity, secondary pollution are small for the embodiment of the present invention, and easily separated recovery, mass transfer speed
Rate is fast, with low cost, and arsenic in water body element can be carried out rapidly and efficiently and selective removal.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (7)
1. a kind of FeOOH nanometer rods/foam carbon composite, it is characterised in that it be using Carbon foam as substrate, and
FeOOH nanometer rods uniform load is on this substrate.
2. the preparation method of FeOOH nanometer rods/Foam carbon composite material described in the claims 1, its feature exists
In comprising the following steps：
Step A, according to every 120 μ L Solute mass fractions for 37.5% hydrochloric acid solution use 11.88mL deionized waters and 28mL
The ratio of acetonitrile, hydrochloric acid solution, deionized water and acetonitrile are mixed, so that the first reaction solution is made；
Step B, according to every reaction solutions of 40ml first use 0.0135mol FeCl3With 0.04mol NaNO3Ratio, will
FeCl3And NaNO3It is dissolved in the first reaction solution, and the Carbon foam added after stirring 30min after being acidified, continue to stir 1 hour,
Transfer it in reactor, hydro-thermal reaction is carried out 4 hours with 100 DEG C, then cleaned and dried, so that on being made
State FeOOH nanometer rods/Foam carbon composite material described in claim 1.
3. the preparation method of FeOOH nanometer rods/Foam carbon composite material according to claim 2, its feature exists
In the Carbon foam after described acidifying is prepared from using following methods：Heating rate with 5 DEG C per minute is added to foam
Heat treatment, until being warming up to 700 DEG C, is incubated 2 hours, then puts it into the salpeter solution that concentration is 3.5mol/L, with 120
DEG C boil 2 hours, so that the Carbon foam after acidifying is made.
4. the preparation method of FeOOH nanometer rods/Foam carbon composite material according to Claims 2 or 3, its feature
Be, described progress clean and dry including：It is multiple using deionized water cleaning, it is then placed in drying baker with 60 DEG C of baking
Dry temperature is dried.
5. FeOOH nanometer rods/Foam carbon composite material described in the claims 1 is used as removing arsenic in water body element
Adsorbent.
6. adsorbent according to claim 5, it is characterised in that consumption of the adsorbent in water body is 0.5g/L.
7. the adsorbent according to claim 5 or 6, it is characterised in that when the adsorbent carries out adsorption treatment in water body,
The pH value of water body is controlled 7, and the time control of adsorption treatment was at 24 hours.
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| CN201710166405.6A CN107082467B (en) | 2017-03-20 | 2017-03-20 | Iron oxyhydroxide nanorod/foam carbon composite material and preparation method and application thereof |
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| CN201710166405.6A CN107082467B (en) | 2017-03-20 | 2017-03-20 | Iron oxyhydroxide nanorod/foam carbon composite material and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000022A (en) * | 2021-03-02 | 2021-06-22 | 中国地质大学（武汉） | Manganese-doped nano lepidocrocite/carbon foam composite material, preparation method and application |
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| CN104923160A (en) * | 2015-07-03 | 2015-09-23 | 河北工业大学 | Preparation method for composite material for adsorbing heavy metal ions in sewage and wastewater |
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| CN102909021A (en) * | 2012-11-01 | 2013-02-06 | 新疆大学 | Batch-preparation and quick-separation method of iron-based coal-liquefaction nano catalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113000022A (en) * | 2021-03-02 | 2021-06-22 | 中国地质大学（武汉） | Manganese-doped nano lepidocrocite/carbon foam composite material, preparation method and application |
| CN113000022B (en) * | 2021-03-02 | 2022-03-22 | 中国地质大学（武汉） | Manganese-doped nano lepidocrocite/carbon foam composite material, preparation method and application |
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