CN110294637A - A kind of modified porous cordierite ceramics material and the preparation method and application thereof - Google Patents
A kind of modified porous cordierite ceramics material and the preparation method and application thereof Download PDFInfo
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- CN110294637A CN110294637A CN201910475352.5A CN201910475352A CN110294637A CN 110294637 A CN110294637 A CN 110294637A CN 201910475352 A CN201910475352 A CN 201910475352A CN 110294637 A CN110294637 A CN 110294637A
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention discloses a kind of modified porous cordierite ceramics materials and the preparation method and application thereof, modified porous cordierite ceramics material, the raw material including following parts by weight: 10~20 parts of aluminum sulfate, 3~10 parts of silicon source, 75~85 parts of fused salt, 10~20 parts of cordierite, 70~80 parts of solvent and 6~10 parts of silane coupling agent.The present invention grows mullite crystal whisker on porous cordierite ceramics surface by molten-salt growth method, increase the specific surface area and mechanical strength of porous ceramics, Al-OH, Si-OH are introduced on porous cordierite ceramics surface, for further provided with the oxyalkylation reaction of silane coupling agent largely can reaction active groups, thus in a large amount of-NH of porous cordierite ceramics surface grafting2Functional group can effectively remove heavy metal copper ion in water by the chelatropic reaction with heavy metal copper ion.The present invention has porosity, high specific area, high mechanical strength, high adsorption, chemisorption wide adaptability, and preparation method is simple, and production cost is low, regeneration rate is high.
Description
Technical field
The invention belongs to Environmental Chemistry applied technical fields, and in particular to a kind of modified porous cordierite ceramics material and its
Preparation method and application.
Background technique
The research of existing adsorbent mainly includes active carbon, graphite, clay, chitosan, flyash, seaweed, humic acid, agriculture
Industry waste, resin, bentonite and microorganism etc., in practical applications, traditional heavy-metal adsorption material show use cost
It is high, be difficult to recycle, be not strong to low-concentration heavy metal ions removal ability, lacking the defects of ion selectivity.To overcome this
A little problems, and meet requirement and environment demand to degradable adsorbent material of the people to specific heavy metal recovery, recycling,
Develop that cheap, adsorption capacity is high, selectivity is high, renewable and environmental-friendly adsorbent material is heavy metal ion adsorbed grinds
The important directions studied carefully.
Summary of the invention
It is for the defects in the prior art and insufficient, the present invention provides a kind of modified porous cordierite ceramics material and its
Preparation method and application, overcome existing adsorbent for heavy metal at high cost, not strong to low-concentration heavy metal ions removal ability
The defects of.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of modified porous cordierite ceramics material, the raw material including following parts by weight: 10~20 parts of aluminum sulfate, silicon source 3
~10 parts, 75~85 parts of fused salt, 10~20 parts of cordierite, 70~80 parts of solvent and 6~10 parts of silane coupling agent.
The invention also includes following technical characteristics:
Specifically, including the raw material of following parts by weight: 12 parts of aluminum sulfate, 3 parts of silicon source, 85 parts of fused salt, 10 parts of cordierite, molten
80 parts and 10 parts of silane coupling agent of agent.
Specifically, the silicon source is diatomite, the fused salt is potassium sulfate or sodium sulphate, and the cordierite is cordierite pottery
Porcelain block, the solvent are dehydrated alcohol or toluene, and the silane coupling agent is gamma-aminopropyl-triethoxy-silane coupling agent.
The present invention also provides the preparation methods of the modification porous cordierite ceramics material described in one kind, which is characterized in that should
Method specifically includes the following steps:
Step 1 weighs aluminum sulfate, silicon source and sulfate by formula ratio, is fully ground, is sieved, regrinding obtains mixed powder；
Obtained mixed powder is covered on the cordierite ceramic block of formula ratio and heats reaction；
The product that step 1 obtains is boiled in boiling water bath to its fused salt remained on surface and is completely dissolved, so by step 2
By cooling, washs, is dried to obtain dichroite-mullite whisker；
In dichroite-mullite whisker obtained in step 2, the solvent of formula ratio and silane coupled is added in step 3
Agent is reacted；
Step 4, the product that step 3 is obtained, after natural cooling, cleaning obtains modified porous cordierite ceramics material
Material.
Specifically, the heating rate for heating reaction in the step 1 is 5 DEG C/min, 800 are risen to the heating rate~
1000 DEG C, and 1~2h is kept the temperature at the maximum temperature.
Specifically, the reaction is the dichroite-mullite crystalline substance that solvent and silane coupling agent will be added in the step 3
Must be placed in ptfe autoclave, at 60~70 DEG C react 12~for 24 hours.
Specifically, cleaning is cleaned 3~5 times with dehydrated alcohol or acetone in the step 4, it is unreacted to remove surface
Silane coupling agent.
Specifically, this method specifically includes the following steps:
Step 1, by Al2(SO4)3·18H2O is sintered 3h at 400 DEG C of Muffle furnace, to slough the crystallization water, obtains anhydrous sulphur
Sour aluminium；Aluminum sulfate, diatomite and potassium sulfate are weighed by formula ratio, is fully ground, is sieved, regrinding obtains mixed powder；By what is obtained
Mixed powder be covered on the cordierite ceramic block of the formula ratio of corundum crucible bottom heat reaction, in Muffle furnace with 5 DEG C/
The rate of min rises to 1000 DEG C, and keeps the temperature 1h at the maximum temperature；
The product that step 1 obtains is boiled in boiling water bath to its fused salt remained on surface and is completely dissolved, so by step 2
By cooling, washs, is dried to obtain dichroite-mullite whisker；
In dichroite-mullite whisker obtained in step 2, the solvent absolute ethyl alcohol or first of formula ratio is added in step 3
Benzene and gamma-aminopropyl-triethoxy-silane coupling agent, are placed in ptfe autoclave, react for 24 hours at 70 DEG C；
Step 4, the product that step 3 is obtained are cleaned 3 times after natural cooling with dehydrated alcohol or acetone, are removed
The unreacted silane coupling agent in surface obtains modified porous cordierite ceramics material；
When the solvent in step 3 is dehydrated alcohol, cleaned in step 4 using dehydrated alcohol；When in step 3
Solvent when being toluene, cleaned using acetone in step 4.
A kind of modification porous cordierite ceramics material is used to adsorb the application of heavy metal copper ion.
A kind of modification porous cordierite pottery that the preparation method of the modification porous cordierite ceramics material is prepared
Ceramic material is used to adsorb the application of heavy metal copper ion.
Compared with prior art, the present invention beneficial has the technical effect that
(I) present invention has porosity, high specific area, machinery strong for adsorbing the porous ceramic film material of heavy metal copper ion
Degree is high, high physical adsorbability, high chemical adsorptivity, chemisorption wide adaptability, and preparation method is simple, and production cost is low, again
Raw utilization rate is high.
(II) cordierite (2MgO2Al2O3·5SiO2) be a kind of six-membered cyclic silicate mineral, crystal structure by
[SiO4] tetrahedron, [AlO4] tetrahedron and [MgO6] it is octahedra be connected with each other made of network structure, ion arrangement is not in crystal
Closely, there is larger gap, therefore each thermal expansion coefficient axially presented of crystal is smaller, while showing anisotropy, has
Excellent heat-resistant knocking stability, but the mechanical property of material is poor.Since mullite has good high-temperature behavior, anti-chemistry rotten
Corrosion energy and lower thermal expansion coefficient, introducing mullite crystal whisker in porous cordierite ceramics material can be improved composite wood
The mechanical performance of material, mullite crystal whisker have apparent toughened and reinforced effect inside cordierite ceramica material, and greatly
The specific surface area of porous cordierite ceramics is increased, provides more reaction compartments to be further introduced into amido functional group.
(III) currently, further being connect using silane coupling agent after still molten-salt growth method not being utilized to grow whisker both at home and abroad
The research report of the functional group on branch reaction modifying porous cordierite ceramics surface.This research is made pottery by molten-salt growth method in porous cordierite
Porcelain surface grows mullite crystal whisker, considerably increases the specific surface area of porous ceramics, while increasing the mechanical strength of ceramics,
Porous cordierite ceramics surface introduces a large amount of Al-OH, Si-OH, further to mention with the oxyalkylation reaction of silane coupling agent
Supplied largely can reaction active groups, thus in a large amount of-NH of porous cordierite ceramics surface grafting2Functional group passes through
With the chelatropic reaction of heavy metal copper ion, heavy metal copper ion in water has been effectively removed, and has been expected to realize a huge sum of money in the soil
The removal and recycling of category.
Detailed description of the invention
Fig. 1 is the stereoscan photograph of the porous cordierite ceramics to be modified in embodiment 1；
Fig. 2 is the stereoscan photograph of the modified dichroite-mullite whisker porous ceramics in embodiment 1；
Fig. 3 is the stereoscan photograph of the modified dichroite-mullite whisker porous ceramics in embodiment 2；
Fig. 4 is the stereoscan photograph of the modified dichroite-mullite whisker porous ceramics in embodiment 3；
Fig. 5 is the stereoscan photograph of the modified dichroite-mullite whisker porous ceramics in embodiment 4；
Fig. 6 is the stereoscan photograph of the modified dichroite-mullite whisker porous ceramics in embodiment 5；
Fig. 7 is dichroite-mullite whisker porous ceramics and the violet blueness of the silane coupler modified front and back in embodiment 1
Stone-mullite crystal whisker-KH550 porous ceramics infrared spectroscopy.
Fig. 8 is dichroite-mullite whisker porous ceramics and the violet blueness of the silane coupler modified front and back in embodiment 1
Removal curve of the stone-mullite crystal whisker-KH550 porous ceramics to 30mg/L copper ion.
Fig. 9 is dichroite-mullite whisker porous ceramics and the violet blueness of the silane coupler modified front and back in embodiment 1
Adsorbance curve of the stone-mullite crystal whisker-KH550 porous ceramics to various concentration copper ion.
Specific embodiment
Cordierite (2MgO2Al2O3·5SiO2) it is a kind of six-membered cyclic silicate mineral, crystal structure is by [SiO4] four
Face body, [AlO4] tetrahedron and [MgO6] it is octahedra be connected with each other made of network structure, ion arrangement is not close in crystal, has
Larger gap, therefore each thermal expansion coefficient axially presented of crystal is smaller, while showing anisotropy, resists with excellent
Thermal shock resistance, but the mechanical property of material is poor.Due to mullite have good high-temperature behavior, resist chemical performance with
And lower thermal expansion coefficient, introducing mullite crystal whisker in porous cordierite ceramics material can be improved the machinery of composite material
Performance, mullite crystal whisker has apparent toughened and reinforced effect inside cordierite ceramica material, and substantially increases violet
The specific surface area of green stone porous ceramics provides more reaction compartments to be further introduced into amido functional group.This research passes through
Molten-salt growth method grows mullite crystal whisker on porous cordierite ceramics surface, considerably increases the specific surface area of porous ceramics, increases simultaneously
The mechanical strength for having added ceramics, introduces a large amount of Al-OH, Si-OH on porous cordierite ceramics surface, for further and silane
The oxyalkylation reaction of coupling agent provide largely can reaction active groups, thus big in porous cordierite ceramics surface grafting
- the NH of amount2Functional group has effectively removed heavy metal copper ion in water, and have by the chelatropic reaction with heavy metal copper ion
Hope the removal and recycling for realizing heavy metal in the soil.
Present embodiment discloses a kind of modified porous cordierite ceramics material, the raw material including following parts by weight: sulfuric acid
10~20 parts of aluminium, 3~10 parts of silicon source, 75~85 parts of fused salt, 10~20 parts of cordierite, 70~80 parts of solvent and silane coupling agent 6
~10 parts.Preferably, the raw material including following parts by weight: 12 parts of aluminum sulfate, 3 parts of silicon source, 85 parts of fused salt, 10 parts of cordierite, molten
80 parts and 10 parts of silane coupling agent of agent.
The silicon source is diatomite, and the fused salt is potassium sulfate or sodium sulphate, and the cordierite is cordierite ceramic block,
The solvent is dehydrated alcohol or toluene, and the silane coupling agent is gamma-aminopropyl-triethoxy-silane coupling agent.
Present embodiment additionally provides a kind of preparation method of modified porous cordierite ceramics material, and this method specifically includes
Following steps:
Step 1 weighs aluminum sulfate, silicon source and sulfate by formula ratio, is fully ground, is sieved, regrinding obtains mixed powder；
Obtained mixed powder is covered on the cordierite ceramic block of formula ratio and heats reaction；
The product that step 1 obtains is boiled in boiling water bath to its fused salt remained on surface and is completely dissolved, so by step 2
By cooling, washs, is dried to obtain dichroite-mullite whisker；
In dichroite-mullite whisker obtained in step 2, the solvent of formula ratio and silane coupled is added in step 3
Agent is reacted；
Step 4, the product that step 3 is obtained, after natural cooling, cleaning obtains modified porous cordierite ceramics material
Material.
The heating rate that reaction is heated in step 1 is 5 DEG C/min, rises to 800~1000 DEG C with the heating rate, and
1~2h is kept the temperature at the maximum temperature.
In step 3, the reaction is that the dichroite-mullite whisker that solvent and silane coupling agent is added is placed in poly- four
In vinyl fluoride reaction kettle, at 60~70 DEG C react 12~for 24 hours.
In step 4, cleaning is cleaned 3~5 times with dehydrated alcohol or acetone, removes the unreacted silane coupling agent in surface.
This method specifically includes the following steps:
Step 1, by Al2(SO4)3·18H2O is sintered 3h at 400 DEG C of Muffle furnace, to slough the crystallization water, obtains anhydrous sulphur
Sour aluminium；Aluminum sulfate, diatomite and potassium sulfate are weighed by formula ratio, is fully ground, is sieved, regrinding obtains mixed powder；By what is obtained
Mixed powder be covered on the cordierite ceramic block of the formula ratio of corundum crucible bottom heat reaction, in Muffle furnace with 5 DEG C/
The rate of min rises to 1000 DEG C, and keeps the temperature 1h at the maximum temperature；
The product that step 1 obtains is boiled in boiling water bath to its fused salt remained on surface and is completely dissolved, so by step 2
By cooling, washs, is dried to obtain dichroite-mullite whisker；
In dichroite-mullite whisker obtained in step 2, the solvent absolute ethyl alcohol or first of formula ratio is added in step 3
Benzene and gamma-aminopropyl-triethoxy-silane coupling agent, are placed in ptfe autoclave, react for 24 hours at 70 DEG C；
Step 4, the product that step 3 is obtained are cleaned 3 times after natural cooling with dehydrated alcohol or acetone, are removed
The unreacted silane coupling agent in surface obtains modified porous cordierite ceramics material；
When the solvent in step 3 is dehydrated alcohol, cleaned in step 4 using dehydrated alcohol；When in step 3
Solvent when being toluene, cleaned using acetone in step 4.
A kind of modified porous cordierite ceramics material is used to adsorb the application of heavy metal copper ion.
A kind of modification porous cordierite ceramics material that the preparation method of modified porous cordierite ceramics material is prepared
For adsorbing the application of heavy metal copper ion.
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, all equivalent transformations made on the basis of the technical solutions of the present application each fall within protection scope of the present invention.
Embodiment 1:
The present embodiment provides a kind of modified porous cordierite ceramics material and preparation method thereof, modified porous cordierite ceramics
Material includes the raw material of following parts by weight: 12 parts of aluminum sulfate, 3 parts of silicon source, 85 parts of fused salt, 10 parts of cordierite, 80 parts of solvent and silicon
10 parts of alkane coupling agent.
The preparation method of the modification porous cordierite ceramics material, this method specifically includes the following steps:
Step 1, by Al2(SO4)3·18H2O is sintered 3h at 400 DEG C of Muffle furnace, to slough the crystallization water, obtains anhydrous sulphur
Sour aluminium；Aluminum sulfate, diatomite and potassium sulfate are weighed by formula ratio, is fully ground, is sieved, regrinding obtains mixed powder；By what is obtained
Mixed powder be covered on the cordierite ceramic block of the formula ratio of corundum crucible bottom heat reaction, in Muffle furnace with 5 DEG C/
The rate of min rises to 1000 DEG C, and keeps the temperature 1h at the maximum temperature；
The product that step 1 obtains is boiled in boiling water bath to its fused salt remained on surface and is completely dissolved, so by step 2
By cooling, washs, is dried to obtain dichroite-mullite whisker；
In dichroite-mullite whisker obtained in step 2, the solvent absolute ethyl alcohol or first of formula ratio is added in step 3
Benzene and gamma-aminopropyl-triethoxy-silane coupling agent (KH550), are placed in ptfe autoclave, react at 70 DEG C
24h；
Step 4, the product that step 3 is obtained are cleaned 3 times after natural cooling with dehydrated alcohol or acetone, are removed
The unreacted silane coupling agent in surface obtains modified porous cordierite ceramics material；
When the solvent in step 3 is dehydrated alcohol, cleaned in step 4 using dehydrated alcohol；When in step 3
Solvent when being toluene, cleaned using acetone in step 4.
Embodiment 2:
The present embodiment provides a kind of modified porous cordierite ceramics material and preparation method thereof, the embodiment and embodiment 1
Difference be: modified porous cordierite ceramics material includes the raw material of following parts by weight: 12 parts of aluminum sulfate, 3 parts of silicon source, fused salt
85 parts, 20 parts of cordierite, 70 parts of solvent and 10 parts of silane coupling agent.
The difference of the preparation method and embodiment 1 of the modification porous cordierite ceramics material of the embodiment is: step 1
In: 900 DEG C are risen to the rate of 5 DEG C/min in Muffle furnace, and keeps the temperature 2h at the maximum temperature；In step 3, at 60 DEG C
Reaction is for 24 hours；It is cleaned 5 times in step 4 with dehydrated alcohol or acetone.
Embodiment 3:
The present embodiment provides a kind of modified porous cordierite ceramics material and preparation method thereof, the embodiment and embodiment 1
Difference be: modified porous cordierite ceramics material includes the raw material of following parts by weight: 10 parts of aluminum sulfate, 10 parts of silicon source, molten
80 parts of salt, 14 parts of cordierite, 80 parts of solvent and 6 parts of silane coupling agent.
The difference of the preparation method and embodiment 1 of the modification porous cordierite ceramics material of the embodiment is: step 1
In: 950 DEG C are risen to the rate of 5 DEG C/min in Muffle furnace, and keeps the temperature 1.5h at the maximum temperature；In step 3,65 DEG C
Lower reaction 12h；It is cleaned 4 times in step 4 with dehydrated alcohol or acetone.
Embodiment 4:
The present embodiment provides a kind of modified porous cordierite ceramics material and preparation method thereof, the embodiment and embodiment 1
Difference be: modified porous cordierite ceramics material includes the raw material of following parts by weight: 20 parts of aluminum sulfate, 5 parts of silicon source, fused salt
75 parts, 17 parts of cordierite, 75 parts of solvent and 8 parts of silane coupling agent.
The difference of the preparation method and embodiment 1 of the modification porous cordierite ceramics material of the embodiment is: step 1
In: 1000 DEG C are risen to the rate of 5 DEG C/min in Muffle furnace, and keeps the temperature 2h at the maximum temperature；In step 3, at 70 DEG C
Reaction 12~for 24 hours；It is cleaned 5 times in step 4 with dehydrated alcohol or acetone.
Embodiment 5:
The present embodiment provides a kind of modified porous cordierite ceramics material and preparation method thereof, the embodiment and embodiment 1
Difference be: modified porous cordierite ceramics material includes the raw material of following parts by weight: 15 parts of aluminum sulfate, 5 parts of silicon source, fused salt
80 parts, 20 parts of cordierite, 70 parts of solvent and 10 parts of silane coupling agent.
The difference of the preparation method and embodiment 1 of the modification porous cordierite ceramics material of the embodiment is: step 1
In: 950 DEG C are risen to the rate of 5 DEG C/min in Muffle furnace, and keeps the temperature 2h at the maximum temperature；In step 3, at 65 DEG C
Reaction is for 24 hours；It is cleaned 4 times in step 4 with dehydrated alcohol or acetone.
Above embodiments are characterized as below:
(1) scanning electron microscope: Fig. 1 is the scanning electricity for the porous cordierite ceramics to be modified that embodiment 1 to embodiment 5 uses
Mirror photo；It can be seen from the figure that there are a large amount of gaps on cordierite surface, it is densely distributed, and be in irregular shape.
Fig. 2 to Fig. 6 be embodiment 1 to embodiment 5 modified dichroite-mullite whisker porous ceramics scanning electron microscope
Photo；It can be seen from the figure that having grown the mullite crystal whisker of fasciculation on modified cordierite substrates, in embodiment 1 not
Carry out stone crystal whisker has more more dense whiskers to grow up to respect to other embodiments.
(2) infrared spectroscopy: Fig. 7 is that the dichroite-mullite whisker of the silane coupler modified front and back of embodiment 1 is porous
The infrared spectroscopy of ceramics and dichroite-mullite whisker-KH550 porous ceramics；It can be seen from the figure that green in unmodified violet
There is 3365cm in stone-mullite crystal whisker porous ceramics-1Absorption be-OH stretching vibration peak, in 1184cm-1Place is [SiO4]
Tetrahedral stretching vibration, in 964cm-1Place is [AlO4] tetrahedral stretching vibration, in 772cm-1Strong absorption spectra at wave number
Band corresponds to the six-membered ring structure breathing vibration of cordierite feature, 623cm-1And 584cm-1Correspond mainly to Mg-O6Octahedron draws
The stretching vibration risen.It is modified by KH550, in 2934cm-1And 2865cm-1There is methylene (- CH2) it is symmetrical flexible
Vibration peak shows that KH550 has successfully been grafted on dichroite-mullite whisker porous ceramic matrices suitable.
(3) copper ion removes: in 150ml conical flask, 50ml, 30mg/L is added contains Cu2+Simulated water sample, using number
Aobvious acidometer adjusts solution to required pH value, is then respectively adding above-mentioned sample, is put into shaking table and shakes under the conditions of 180r/min
Swing certain time.Supernatant liquor is taken, Cu in atomic absorption spectroscopy determination solution is utilized2+Concentration, utilize formula (1), meter
Calculate Cu2+Adsorption rate.Cu is calculated using formula (2)2+Adsorbance.
Fig. 8 is the dichroite-mullite whisker porous ceramics and cordierite-of the silane coupler modified front and back of embodiment 1
Removal curve of the mullite crystal whisker-KH550 porous ceramics to 30mg/L copper ion；It can be seen from the figure that modified violet is green
Stone-mullite crystal whisker porous ceramics and unmodified dichroite-mullite whisker porous ceramics, just beginning adsorption efficiency is very fast,
After adsorbing 120min, adsorption equilibrium is basically reached, modified dichroite-mullite whisker porous ceramics removal rate is reachable
81.31%, 5.68 times are increased compared to unmodified dichroite-mullite whisker porous ceramics removal rate, this is because violet
Green stone-mullite crystal whisker porous ceramics has vesicular texture, has suction-operated for heavy metal ion, modified violet is green
Stone-mullite crystal whisker porous ceramic surface active group-NH2It reacts with metal ion complexation, increases cordierite-not
Carry out the chelation of stone crystal whisker porous ceramics and copper ion, the rate of adsorption is quickly；As time increases, the rate of adsorption gradually subtracts
It is small, it is finally reached adsorption equilibrium.
(4) to the adsorbance of various concentration copper ion:
Fig. 9 is the dichroite-mullite whisker porous ceramics and cordierite-of the silane coupler modified front and back of embodiment 1
Adsorbance curve of the mullite crystal whisker-KH550 porous ceramics to various concentration copper ion；It can be seen from the figure that modified
Dichroite-mullite whisker porous ceramics maximal absorptive capacity is up to 3837.5ug/g, compared to unmodified dichroite-mullite
Whisker porous ceramics maximal absorptive capacity increases 13.35 times.This is because Cu2+Initial concentration is bigger, adsorbable Cu2+Amount
It is more, in the case where adsorption capacity is certain, the Cu of absorption2+Amount it is also more, modified dichroite-mullite whisker is more
A large amount of active group-the NH of hole ceramic surface2It reacts with metal ion complexation, considerably increases dichroite-mullite crystalline substance
It must suction-operated of the porous ceramics to copper ion.
Claims (10)
1. a kind of modified porous cordierite ceramics material, which is characterized in that the raw material including following parts by weight: aluminum sulfate 10~20
Part, 3~10 parts of silicon source, 75~85 parts of fused salt, 10~20 parts of cordierite, 70~80 parts of solvent and 6~10 parts of silane coupling agent.
2. modified porous cordierite ceramics material as described in claim 1, which is characterized in that the original including following parts by weight
Material: 12 parts of aluminum sulfate, 3 parts of silicon source, 85 parts of fused salt, 10 parts of cordierite, 80 parts of solvent and 10 parts of silane coupling agent.
3. modified porous cordierite ceramics material as described in claim 1, which is characterized in that the silicon source is diatomite, institute
Stating fused salt is potassium sulfate or sodium sulphate, and the cordierite is cordierite ceramic block, and the solvent is dehydrated alcohol or toluene, institute
Stating silane coupling agent is gamma-aminopropyl-triethoxy-silane coupling agent.
4. a kind of preparation method of the modification porous cordierite ceramics material as described in claims 1 to 3 any claim,
Be characterized in that, this method specifically includes the following steps:
Step 1 weighs aluminum sulfate, silicon source and sulfate by formula ratio, is fully ground, is sieved, regrinding obtains mixed powder；Will
To mixed powder be covered on the cordierite ceramic block of formula ratio heat reaction；
The product that step 1 obtains is boiled in boiling water bath to its fused salt remained on surface and is completely dissolved, then passed through by step 2
It cools down, wash, being dried to obtain dichroite-mullite whisker；
In dichroite-mullite whisker obtained in step 2, the solvent and silane coupling agent of formula ratio is added in step 3, into
Row reaction；
Step 4, the product that step 3 is obtained, after natural cooling, cleaning obtains modified porous cordierite ceramics material.
5. the preparation method of modified porous cordierite ceramics material as claimed in claim 4, which is characterized in that the step 1
The heating rate of middle heating reaction is 5 DEG C/min, rises to 800~1000 DEG C with the heating rate, and protect at the maximum temperature
1~2h of temperature.
6. the preparation method of modified porous cordierite ceramics material as claimed in claim 4, which is characterized in that the step 3
In, the reaction is that the dichroite-mullite whisker that solvent and silane coupling agent is added is placed in ptfe autoclave,
At 60~70 DEG C reaction 12~for 24 hours.
7. the preparation method of modified porous cordierite ceramics material as claimed in claim 4, which is characterized in that the step 4
In, cleaning is cleaned 3~5 times with dehydrated alcohol or acetone, and the unreacted silane coupling agent in surface is removed.
8. the preparation method of modified porous cordierite ceramics material as claimed in claim 4, which is characterized in that this method is specific
The following steps are included:
Step 1, by Al2(SO4)3·18H2O is sintered 3h at 400 DEG C of Muffle furnace, to slough the crystallization water, obtains anhydrous slufuric acid
Aluminium；Aluminum sulfate, diatomite and potassium sulfate are weighed by formula ratio, is fully ground, is sieved, regrinding obtains mixed powder；It is mixed by what is obtained
Close and heat reaction on the cordierite ceramic block of the powder formula ratio that is covered on corundum crucible bottom, in Muffle furnace with 5 DEG C/
The rate of min rises to 1000 DEG C, and keeps the temperature 1h at the maximum temperature；
The product that step 1 obtains is boiled in boiling water bath to its fused salt remained on surface and is completely dissolved, then passed through by step 2
It cools down, wash, being dried to obtain dichroite-mullite whisker；
Step 3, in dichroite-mullite whisker obtained in step 2, be added solvent absolute ethyl alcohol or the toluene of formula ratio with
And gamma-aminopropyl-triethoxy-silane coupling agent, it is placed in ptfe autoclave, is reacted for 24 hours at 70 DEG C；
Step 4, the product that step 3 is obtained are cleaned 3 times after natural cooling with dehydrated alcohol or acetone, remove surface
Unreacted silane coupling agent obtains modified porous cordierite ceramics material；
When the solvent in step 3 is dehydrated alcohol, cleaned in step 4 using dehydrated alcohol；When molten in step 3
When agent is toluene, cleaned in step 4 using acetone.
9. a kind of modification porous cordierite ceramics material as described in claims 1 to 3 any claim is for adsorbing a huge sum of money
Belong to the application of copper ion.
10. a kind of modification violet that the preparation method of modified porous cordierite ceramics material as claimed in claim 8 is prepared
Green stone porous ceramic film material is used to adsorb the application of heavy metal copper ion.
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