CN110237801A - Two-dimension nano materials titanium carbide loads nano zero-valence iron composite material and preparation method application - Google Patents
Two-dimension nano materials titanium carbide loads nano zero-valence iron composite material and preparation method application Download PDFInfo
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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
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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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0211—Compounds of Ti, Zr, Hf
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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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- 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
- B01J2220/42—Materials comprising a mixture of inorganic materials
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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
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
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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
Abstract
The invention discloses a kind of two-dimension nano materials titanium carbide load nano zero-valence iron composite material and preparation method and application, solve the problems, such as that nano zero valence iron itself is easy to reunite in the prior art and are easy to run off.A kind of two-dimension nano materials titanium carbide of the invention loads nano zero-valence iron composite material, using two-dimension nano materials titanium carbide as carrier, loads nano zero valence iron, the composite material by percentage to the quality, including titanium carbide 63~67%, nano zero valence iron 33~37%.Composite material of the invention can efficiently, quickly remove the heavy metal ion in water body, and reaction rate and reactivity are above MXene or nano zero valence iron itself.
Description
Technical field
The invention belongs to technical field of nano material, and in particular to a kind of two-dimension nano materials titanium carbide load nano zero-valence
Iron composite material and preparation method application.
Background technique
In the prior art, absorption method is one of the main stream approach of current removal heavy metal contaminants, but there is appearances always
The difficulties such as low, at high cost, stability is low are measured, therefore, the new material ten of heavy metal pollution in design synthesis energy efficient absorption water
Divide important.
Two-dimentional transition metal carbide or carbonitride (MXene) are a kind of New Two Dimensional crystal, are had and graphite alkenes
As structure.Its chemical formula is Mn+1Xn, n=1,2,3, M are early stage transition metal element, and X is carbon or/and nitrogen.MXene
Fertile material MAX phase be a kind of chemical formula be Mn+1AXn ternary layered compound, wherein A be major element.This green wood
Material was initially prepared by the Michel Barsoum of Drexel university, the U.S. and Yury Gogotis seminar in 2011.At that time he
Using HF etch Ti3AlC2, Al element is removed, two-dimentional carbide Ti is successfully prepared3C2.It synthesizes by this method
The surface MXene generally can be typically expressed as M with functional groups, chemical formulas such as OH, Fn+1XnTx, n=1,2,3, T=OH, F, O.
It mainly include at present neutral gas, cation and yin to the object of the adsorption applications research of MXene in document report
Ion three types.Wherein, MXene is especially prominent to the absorption property of heavy metal.Firstly, the titanium atom on the surface MXene is to gold
Belonging to ion has stronger compatibility；Secondly, the hydroxy functional group on the surface MXene can provide active sites for the absorption of metal ion
Point；In addition, the layer structure of MXene is also beneficial to the absorption of metal ion.MXene has unique morphosis, big ratio
Surface area and surface functional group abundant have a wide range of applications in the adsorbing domain of chromate waste water
Nano zero valence iron is a kind of novel absorption material, has large specific surface area, reproducibility is strong, and cheap, source is rich
Richness the advantages that being swift in response, is widely used in chromate waste water processing.But nano zero valence iron limits what it was applied there are some
Property, such as thermodynamic instability, inactivation easy to reunite the disadvantages of being easy to run off, greatly reduce its reactivity and utilization efficiency.
In order to overcome disadvantage mentioned above, it is a kind of common way on porous carrier that nano zero valence iron, which is loaded to, is retaining nano zero-valence
While iron reactivity itself, its stability can also be enhanced, prevent from reuniting, increase specific surface area and control size point
Cloth.Reported carrier has: active carbon, graphene, carbon nanotube, montmorillonite etc., but with MXene (Ti3C2) received as carrier
Rice zero-valent iron composite material has not been reported.
Therefore it provides a kind of two-dimension nano materials titanium carbide loads nano zero-valence iron composite material, become this field skill
Art personnel's urgent problem to be solved.
Summary of the invention
Technical problem solved by the present invention is providing a kind of two-dimension nano materials titanium carbide load nano zero valence iron composite wood
Material, solves the problems, such as that nano zero valence iron itself is easy to reunite in the prior art and is easy to run off.
The present invention also provides the preparation methods of the composite material.
Invention further provides the applications of the composite material.
The technical solution adopted by the invention is as follows:
A kind of two-dimension nano materials titanium carbide of the present invention loads nano zero-valence iron composite material, with two-dimensional nano material
Material titanium carbide is carrier, loads nano zero valence iron, the composite material by percentage to the quality, including titanium carbide 63~67%,
Nano zero valence iron 33~37%.
Further, the size of the nano zero valence iron is 20-150nm.
Further, the specific surface area of the composite material is 30-40m2/g。
A kind of preparation method of two-dimension nano materials titanium carbide load nano zero-valence iron composite material of the present invention, will
After two-dimension nano materials titanium carbide material surface hydroxylation, ferrous salt solution is added, so that Fe2+It is intercalation into modified two wiener
Between rice material titanium carbide layer, reducing agent is then added and restores Fe2+Ion is made two-dimension nano materials titanium carbide and loads nano zero-valence
Iron composite material.
Further, specifically includes the following steps:
Step 1. surface hydroxylation: two-dimension nano materials titanium carbide being added in aqueous slkali and carries out surface hydroxylation, and
After take out, clean, it is dry, it is spare；
Step 2. load: the two-dimension nano materials titanium carbide after step 1 surface hydroxylation is added to ferrous salt solution
In, after vibrating a period of time, centrifugation removes extra ferrous salt solution；Wherein, the concentration of ferrous salt solution is 10~25wt%,
With solid-to-liquid ratio 40g/L~80g/L of two-dimension nano materials titanium carbide；
Step 3. reduction: it will be centrifuged gained two-dimension nano materials titanium carbide addition anaerobic water through step 2 and be uniformly mixed, obtain
Reducing agent solution is added dropwise in the mixed solution by mixed solution under conditions of nitrogen protection and mechanical stirring, drop
After the completion of adding, continue mechanical stirring under conditions of nitrogen protection, until fully reacting；
Step 4. is cleaned and dried: the material after fully reacting in step 3 taken out, cleaning, it is dry to get two wiener
Rice material titanium carbide loads nano zero-valence iron composite material.
Further, any one or a few in the aqueous slkali in KOH, NaOH；The ferrous salt is selected from sulphur
It is sour ferrous, frerrous chloride any one or a few；The reducing agent is selected from boron hydrohalogenic acid salt or diamine.
Further, in the step 1, the mass concentration of the aqueous slkali is 1-10%, with the two-dimension nano materials
The solid-to-liquid ratio of titanium carbide is 0.1g/mL~0.3g/mL, and the time of the surface hydroxylation is 1-3 hours.
Further, in the step 2, duration of oscillation is 6-24 hours.
Further, the drying in the step 1 and step 4 is vacuum drying.
A kind of two-dimension nano materials titanium carbide load nano zero-valence iron composite material of the present invention is preparing heavy metal
It is applied in adsorbent.
Compared with prior art, the invention has the following advantages:
Design science of the present invention, method are simple.Composite material of the invention can efficiently, quickly remove the heavy metal in water body
Ion, reaction rate and reactivity are above MXene or nano zero valence iron itself.
In the present invention, nano zero valence iron plays the role of intercalation to MXene, improves the specific surface area of MXene, into one
Step improves its reactivity；Nano zero valence iron after load is dispersed in the surface MXene, even size distribution, and good dispersion has
Effect avoids the reunion and loss of Zero-valent Iron；Effectively avoid secondary pollution.
Composite material of the invention has wide range of applications, and has wide spectrum absorbing and reducing to the contents of many kinds of heavy metal ion in waste water
Effect.
Detailed description of the invention
Attached drawing 1 is titanium aluminum carbide (Ti3AlC2), two-dimension nano materials titanium carbide (Ti3C2), surface hydroxylation two-dimensional nano
Material titanium carbide (ALK-Ti3C2), the two-dimension nano materials titanium carbide of surface hydroxylation load nano zero-valence iron composite material
(nZVI-ALK-Ti3C2) XRD diagram；
Attached drawing 2 is the SEM figure during material preparation front and back, wherein the corresponding material of each small figure are as follows: a: titanium aluminum carbide
(Ti3AlC2)；B:MXene (Ti3C2)；C: surface hydroxylation two-dimension nano materials titanium carbide；D: two wieners of non-surface hydroxylation
Rice material titanium carbide loads nano zero-valence iron composite material；E: the two-dimension nano materials titanium carbide of surface hydroxylation loads nanometer zero
Valence iron composite material；F is the partial enlarged view for scheming e.
Attached drawing 3 is that the two-dimension nano materials titanium carbide of surface hydroxylation loads nano zero-valence iron composite material absorption heavy metal
Scanning electron microscope (SEM) photograph afterwards.
Specific embodiment
Foregoing invention content of the invention is described in further detail With reference to embodiment.But it should not incite somebody to action
This range for being interpreted as the above-mentioned theme of the present invention is only limitted to following embodiments.The above-mentioned technical idea situation of the present invention is not being departed from
Under, according to ordinary skill knowledge and customary means, various replacements and change are made, the scope of the present invention should all be included in
It is interior.
Embodiment 1
The preparation method of two-dimension nano materials titanium carbide is present embodiments provided, specifically:
Take 10g powder titanium aluminum carbide (Ti3AlC2), under the conditions of magnetic agitation, it is slowly added into 80mL40wt% hydrofluoric acid
In solution, 40 DEG C of heating stirring 72h, are 5-7 with anaerobic ultrapure water eccentric cleaning to pH, and by resulting materials, vacuum is done at 80 DEG C
It is dry, obtain two-dimensional layer material MXene (Ti3C2), specific surface area is about 7m2/g。
Its XRD diffracting spectrum is as shown in Fig. 1, coincide with the XRD diffraction spectrogram of theoretical calculation, it was demonstrated that be successfully made
MXene(Ti3C2)。
Its SEM schemes shown in the b in appended Fig. 2, it was demonstrated that the MXene (Ti of big interlamellar spacing is successfully made3C2), maximum interlayer
Away from about 100nm.
Embodiment 2
Present embodiment discloses the preparation methods of two-dimension nano materials titanium carbide load nano zero-valence iron composite material, specifically
Are as follows:
Step 1. surface hydroxylation: anaerobic water configuration concentration is the KOH solution 50mL of 5wt%, is taken as described in Example 1
Manufactured two-dimension nano materials titanium carbide 3g, adds in the KOH solution, then 180rpm oscillator vibrate 2h, resulting materials from
It is 7-9 that the heart, which is cleaned to pH, and 80 DEG C of vacuum dryings are spare, obtain surface hydroxylation two-dimension nano materials titanium carbide.Pass through attached drawing 1
The c of XRD diagram and attached drawing 2 can be seen that the interlamellar spacing further expansion of surface hydroxylation two-dimension nano materials titanium carbide；
Step 2. load: anaerobic water configuration concentration is 20wt% ferrous sulfate solution 25mL, takes surface made from 2g step 1
Hydroxylating two-dimension nano materials titanium carbide, is added in the ferrous sulfate solution, then vibrates 12h in 180rpm oscillator, from
The heart removes extra ferrous sulfate solution.
Step 3. reduction: will be centrifuged gained two-dimension nano materials titanium carbide addition 50mL anaerobic water through step 2 and be uniformly mixed,
Mixed solution is made；It is passed through nitrogen 1h, guarantees the oxygen free condition in reaction kettle；The sodium borohydride aqueous solution of another configuration 5wt%
27mL, with the rate of addition of 4mL/min, is added dropwise in mixed solution under conditions of nitrogen protection and mechanical stirring, is added dropwise
After the completion, continue mechanical stirring 1h under conditions of nitrogen protection.
Step 4. will be taken out through the material of step 3 fully reacting, and anaerobic water cleans 4-5 times, washes of absolute alcohol 3-4 times,
By the material centrifugation after cleaning, 60 DEG C are dried in vacuo, and save under oxygen free condition, the two-dimensional nano material of surface hydroxylation can be obtained
Expect that titanium carbide loads nano zero-valence iron composite material, be labeled as A1, SEM schemes as shown in the e and f in attached drawing 2, it can be seen that receives
Rice Zero-valent Iron is so uniform that be distributed in two-dimension nano materials titanium carbide surface and interlayer.
Embodiment 3
The present embodiment is comparative example, and compared with Example 2, the present embodiment eliminates two-dimension nano materials titanium carbide surface hydroxyl
The step of base, and two-dimension nano materials titanium carbide load nano zero valence iron is directlyed adopt, specifically:
Step 1. load: anaerobic water configuration concentration is 20wt% ferrous sulfate solution 25mL, takes surface made from 2g step 1
Hydroxylating two-dimension nano materials titanium carbide, is added in the ferrous sulfate solution, then vibrates 12h in 180rpm oscillator, from
The heart removes extra ferrous sulfate solution.
Step 2. reduction: will be centrifuged gained two-dimension nano materials titanium carbide addition 50mL anaerobic water through step 1 and be uniformly mixed,
Mixed solution is made；It is passed through nitrogen 1h, guarantees the oxygen free condition in reaction kettle；The sodium borohydride aqueous solution of another configuration 5wt%
27mL, with the rate of addition of 4mL/min, is added dropwise in mixed solution under conditions of nitrogen protection and mechanical stirring, is added dropwise
After the completion, continue mechanical stirring 1h under conditions of nitrogen protection.
Step 3. will be taken out through the material of step 2 fully reacting, and anaerobic water cleans 4-5 times, washes of absolute alcohol 3-4 times,
By the material centrifugation after cleaning, 60 DEG C are dried in vacuo, and save under oxygen free condition, and the load of two-dimension nano materials titanium carbide can be obtained
Nano zero-valence iron composite material is labeled as D1.Resulting materials pattern is as shown in the d in SEM Fig. 2, it can be seen that nano zero valence iron
It is scattered in two-dimension nano materials titanium carbide surface.
Embodiment 4
Present embodiment discloses the preparation methods of two-dimension nano materials titanium carbide load nano zero-valence iron composite material, specifically
Are as follows:
Step 1. surface hydroxylation: anaerobic water configuration concentration is the NaOH solution of 5wt%, takes and makes as described in Example 1
At two-dimension nano materials titanium carbide 3g, add in the NaOH solution, 180rpm oscillator vibrate 2h, resulting materials eccentric cleaning
It is 7-9 to pH, 80 DEG C of vacuum dryings are spare；
Step 2. load: anaerobic water configuration concentration is 20wt% ferrous sulfate solution 25mL, takes 2g through step 1 surface hydroxyl
Change two-dimension nano materials titanium carbide, is added in the ferrous sulfate solution, then vibrates 12h in 180rpm oscillator, centrifugation is gone
Except extra ferrous sulfate solution；
Step 3. reduction: will be centrifuged gained two-dimension nano materials titanium carbide addition 50mL anaerobic water through step 2 and be uniformly mixed,
Mixed solution is made；It is passed through nitrogen 1h, guarantees the oxygen free condition in reaction kettle；The sodium borohydride aqueous solution of another configuration 5wt%
27mL, with the rate of addition of 4mL/min, is added dropwise in mixed solution under conditions of nitrogen protection and mechanical stirring, is added dropwise
After the completion, continue mechanical stirring 1h under conditions of nitrogen protection.
Step 4. will be taken out through the material of step 3 fully reacting, and anaerobic water cleans 4-5 times, washes of absolute alcohol 3-4 times,
By the material centrifugation after cleaning, 60 DEG C are dried in vacuo, and save under oxygen free condition, the two-dimensional nano material of surface hydroxylation can be obtained
Expect that titanium carbide loads nano zero-valence iron composite material, is labeled as A2.
Embodiment 5
Present embodiment discloses the preparation methods of two-dimension nano materials titanium carbide load nano zero-valence iron composite material, specifically
Are as follows:
Step 1. surface hydroxylation: anaerobic water configuration concentration is the KOH solution 50mL of 5wt%, is taken as described in Example 1
Manufactured two-dimension nano materials titanium carbide 3g, adds in the KOH solution, then 180rpm oscillator vibrate 2h, resulting materials from
It is 7-9 that the heart, which is cleaned to pH, and 80 DEG C of vacuum dryings are spare, obtain surface hydroxylation two-dimension nano materials titanium carbide.
Step 2. load: anaerobic water configuration concentration is 20wt% ferrous sulfate solution 12.5mL, takes 2g through step 1 surface hydroxyl
Base two-dimension nano materials titanium carbide, is added in the ferrous sulfate solution, then vibrates 12h in 180rpm oscillator, centrifugation
Remove extra ferrous sulfate solution；
Step 3. reduction: will be centrifuged gained two-dimension nano materials titanium carbide addition 50mL anaerobic water through step 2 and be uniformly mixed,
Mixed solution is made；It is passed through nitrogen 1h, guarantees the oxygen free condition in reaction kettle；The sodium borohydride aqueous solution of another configuration 5wt%
27mL, with the rate of addition of 4mL/min, is added dropwise in mixed solution under conditions of nitrogen protection and mechanical stirring, is added dropwise
After the completion, continue mechanical stirring 1h under conditions of nitrogen protection.
Step 4. will be taken out through the material of step 3 fully reacting, and anaerobic water cleans 4-5 times, washes of absolute alcohol 3-4 times,
By the material centrifugation after cleaning, 60 DEG C are dried in vacuo, and save under oxygen free condition, the two-dimensional nano material of surface hydroxylation can be obtained
Expect that titanium carbide loads nano zero-valence iron composite material, is labeled as A3.
Embodiment 6
Composite A 1, A2, A3 and D1 are taken, its adsorption capacity to heavy metal chromium is tested, method particularly includes:
Composite material 10mg is taken, is added in the potassium bichromate solution of 50mL100mg/L, vibrates 7h at room temperature, by magnet
It is placed in reactor bottom, composite material under the influence of a magnetic field, fast implements composite material from the separation in water phase, and then 0.45
Micron water system membrane filtration waits for test sample, by ultraviolet-uisible spectrophotometer, according to national standard (GB7466-87) method filtrates tested
The concentration of middle chromate, as a result as shown in the table:
| Composite material | A1 | A2 | A3 | D1 |
| Adsorption capacity (mg/g) | 82.7 | 72.58 | 73.53 | 58.9 |
Scanning electron microscope (SEM) photograph after the absorption heavy metal of composite A 1 is as shown in Fig. 3, after adsorbing heavy metal, nano zero valence iron
It is still secured to surface or the interlayer of two-dimension nano materials titanium carbide, avoids the loss of iron.
Before composite A 1 is added, potassium bichromate solution is in glassy yellow, and after absorption, solution is closely colourless.
Embodiment 7
Present embodiments provide test composite A 1 to the method for heavy metal chromium adsorption capacity, compared with Example 6, originally
Before the method for embodiment adds composite material, adjusting potassium bichromate solution pH is 2-3, method particularly includes: take gained composite wood
Expect 10mg, be added in the potassium bichromate solution of 50mL 100mg/L, vibrate 7h at room temperature, magnet is placed in reactor bottom,
Composite material under the influence of a magnetic field, fast implements composite material from the separation in water phase, then 0.45 micron of water system filter membrane mistake
Filter is to test sample, by ultraviolet-uisible spectrophotometer, according in national standard (GB7466-87) method filtrates tested chromate it is dense
Degree, adsorption capacity 194.9mg/g.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not to protection of the invention
Scope limitation, based on the technical solution of the present invention, those skilled in the art do not need to make the creative labor and can make
Various modifications or changes still within protection scope of the present invention.
Claims (10)
1. a kind of two-dimension nano materials titanium carbide loads nano zero-valence iron composite material, which is characterized in that with two-dimension nano materials
Titanium carbide is carrier, loads nano zero valence iron, the composite material by percentage to the quality, receive by including titanium carbide 63~67%
Rice Zero-valent Iron 33~37%.
2. a kind of two-dimension nano materials titanium carbide according to claim 1 loads nano zero-valence iron composite material, feature
It is, the size of the nano zero valence iron is 20-150nm.
3. a kind of two-dimension nano materials titanium carbide according to claim 1 loads nano zero-valence iron composite material, feature
It is, the specific surface area of the composite material is 30-40m2/g。
4. a kind of two-dimension nano materials titanium carbide according to claim 1 to 3 loads nano zero valence iron composite wood
The preparation method of material, which is characterized in that after two-dimension nano materials titanium carbide material surface hydroxylation, ferrous salt solution is added,
So that Fe2+It is intercalation between modified two-dimension nano materials titanium carbide layer, reducing agent is then added and restores Fe2+Ion is made two
Dimension nano material titanium carbide loads nano zero-valence iron composite material.
5. a kind of preparation side of two-dimension nano materials titanium carbide load nano zero-valence iron composite material according to claim 4
Method, which is characterized in that specifically includes the following steps:
Step 1. surface hydroxylation: two-dimension nano materials titanium carbide is added in aqueous slkali and carries out surface hydroxylation, is then taken
Out, it cleans, it is dry, it is spare；
Step 2. load: the two-dimension nano materials titanium carbide after step 1 surface hydroxylation is added in ferrous salt solution, is shaken
After swinging a period of time, centrifugation removes extra ferrous salt solution；
Step 3. reduction: it will be centrifuged gained two-dimension nano materials titanium carbide addition anaerobic water through step 2 and be uniformly mixed, mixed
Reducing agent solution is added dropwise in the mixed solution, drips under conditions of nitrogen protection and mechanical stirring by solution
Cheng Hou continues mechanical stirring under conditions of nitrogen protection, until fully reacting；
Step 4. is cleaned and dried: the material after fully reacting in step 3 taken out, cleaning, it is dry to get the two-dimensional nano material
Expect that titanium carbide loads nano zero-valence iron composite material.
6. a kind of preparation side of two-dimension nano materials titanium carbide load nano zero-valence iron composite material according to claim 5
Method, which is characterized in that any one or a few in the aqueous slkali in KOH, NaOH；It is sub- that the ferrous salt is selected from sulfuric acid
Iron, frerrous chloride any one or a few；The reducing agent is selected from boron hydrohalogenic acid salt or diamine.
7. a kind of preparation side of two-dimension nano materials titanium carbide load nano zero-valence iron composite material according to claim 5
Method, which is characterized in that in the step 1, the mass concentration of the aqueous slkali is 1-10%, is carbonized with the two-dimension nano materials
The solid-to-liquid ratio of titanium is 0.1g/mL~0.3g/mL, and the time of the surface hydroxylation is 1-3 hours.
8. a kind of preparation side of two-dimension nano materials titanium carbide load nano zero-valence iron composite material according to claim 5
Method, which is characterized in that in the step 2, duration of oscillation is 6-24 hours.
9. a kind of preparation side of two-dimension nano materials titanium carbide load nano zero-valence iron composite material according to claim 5
Method, which is characterized in that the drying in the step 1 and step 4 is vacuum drying.
10. a kind of two-dimension nano materials titanium carbide described in any one of claim 1-9 loads nano zero-valence iron composite material
It is applied in preparing heavy metal absorbent.
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| CN115430444A (en) * | 2022-09-29 | 2022-12-06 | 北京林业大学 | Method for degrading macrolide antibiotic wastewater by using MXenes/NZVI catalyst in cooperation with photoactivated persulfate |
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| CN113209933A (en) * | 2021-04-15 | 2021-08-06 | 中国工程物理研究院材料研究所 | Preparation method of MXene aerogel and application of MXene aerogel in adsorbing phosphorus and uranyl |
| CN113209933B (en) * | 2021-04-15 | 2022-07-01 | 中国工程物理研究院材料研究所 | Preparation method of MXene aerogel and application of MXene aerogel in adsorption of phosphorus and uranyl |
| WO2022227571A1 (en) * | 2021-04-29 | 2022-11-03 | 东莞理工学院 | Method for mxene-enhanced fenton-like oxidative degradation of heavy metal complex and recovery of heavy metal |
| CN114917861A (en) * | 2022-05-16 | 2022-08-19 | 中南林业科技大学 | High-conductivity three-dimensional composite material, preparation method and application thereof in treatment of nitrogen and phosphorus organic wastewater |
| CN114917861B (en) * | 2022-05-16 | 2023-11-21 | 中南林业科技大学 | High-conductivity three-dimensional composite material, preparation method and application thereof in treatment of nitrogen-phosphorus organic wastewater |
| CN115430444A (en) * | 2022-09-29 | 2022-12-06 | 北京林业大学 | Method for degrading macrolide antibiotic wastewater by using MXenes/NZVI catalyst in cooperation with photoactivated persulfate |
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