CN107855099A - A kind of nano composite material to purify water - Google Patents
A kind of nano composite material to purify water Download PDFInfo
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- CN107855099A CN107855099A CN201711102721.3A CN201711102721A CN107855099A CN 107855099 A CN107855099 A CN 107855099A CN 201711102721 A CN201711102721 A CN 201711102721A CN 107855099 A CN107855099 A CN 107855099A
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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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
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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
- B01J20/28054—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 surface properties or porosity
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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
Abstract
The invention discloses a kind of nano composite material to purify water, using nano diatomite, the magnesium of three silicic acid two, Inflamase, 4-methoxyl group butyric acid, sodium metasilicate, hexafluorosilicic acid barium, sodium tripolyphosphate, the modified composite molecular screens of Na LTA/MCM 42,4-cresotinic acid as primary raw material, green metal ion scavenging material is prepared by the way that the composite molecular screens of Na LTA/MCM 42 are carried out into organic monoacid modification again with the processing of strong oxidizer potassium permanganate oxidation；The present invention carries out organic monoacid and is modified that to prepare the green water quality purification material rate of adsorption fast again by using by the way that the composite molecular screens of Na LTA/MCM 42 are handled with strong oxidizer potassium permanganate oxidation, it is green, it is repeatable to utilize, there is excellent metal ion clean-up effect.
Description
Technical field
Invention is related to a kind of nano composite material to purify water, belongs to water treatment field.
Background technology
With the quickening of China's ur- banization speed, various regions industrial sector scale is constantly expanded, and city size constantly expands, raw
The demand for applying flexibly water and industrial water is also increasingly in short supply.Weary predicament is cured in order to alleviate water resource, using water wisely, is repeated again sharp
Turn into the focus of research with water source.Method for treating water common at present mainly has the chemistry such as bioanalysis, chemical precipitation, absorption method heavy
Heavy metal ions in sewage is mainly formed precipitation by shallow lake method by adding chemical substance into sewage, removes sewage after filtering
In the amount that needs of this method of heavy metal ion it is larger, although and be possible to bring it is right in the existing adsorption method of secondary pollution
Purification sewage has certain effect, but it is non-renewable to still suffer from adsorbent, the deficiencies of reusing difference.
The content of the invention
It is an object of the invention to provide a kind of nano composite material to purify water, has excellent clean-up effect.
A kind of nano composite material to purify water, its preparation method comprise the following steps：
2 parts of 10 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 20 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.
Described modification Na-LTA/MCM-42 composite molecular screen preparation methods are as follows：
Step 1, the grinding of 25 parts of Na-LTA zeolites is screened to 100 mesh, then the Na-LTA zeolite powders after sieving are placed in electric furnace and added
After being heated to 1000 DEG C of insulation 3h in thermal with 10 DEG C/min heating rate, Na-LTA powder is made；
Step 2,10 parts of MCM-42 zeolite molecular sieves powder are mixed with 25 parts of obtained Na-LTA powder, then add 30 parts
Glycerine fusion agent stirs, the oil bath 2h at 300 DEG C, stands more than 1h at room temperature, discards supernatant, cleaned with ultra-pure water
Lower floor's material, obtains composite molecular screen；
Step 3 and then 9 parts of potassium permanganate are slowly added into 35 parts of above-mentioned composite molecular screens, add speed and strictly control, with
Ensure that temperature is less than 20 DEG C, then remove ice bath, using water-bath and maintain the temperature at 35 DEG C or so, be incubated 2 hours, stir lower slow
Slowly 120 parts of deionized waters are initially added into, system is fiercely warming up to 98 DEG C, rear to be kept for 15 minutes with 98 DEG C of water-baths；
Step 4 and then further diluted with 80 parts of warms, 60 DEG C of deionized waters, then add excessive 30% hydrogen peroxide with Reduction Body
Remaining potassium permanganate and be manganese dioxide in system, is filtered while hot, is 1 with volume ratio:10 hydrochloric acid solution washed once, washing
Three times, 45 DEG C of dryings in an oven.
Step 5, the oxidation composite molecular screen grind into powder by above-mentioned preparation, to ensure abundant expanded by heating, progressively rise
Temperature loads in tube furnace to 200 DEG C, heats and is sealed at the mouth of pipe, and thermocouple is contacted to ensure that thermometric is accurate with heating bottom of the tube.Heat
After expansion terminates, oxidation modification Na-LTA/MCM-42 nano materials are obtained.
Described nano diatomite preparation method is as follows：
10 portions of diatoms are added into part to go in 400 parts of deionized waters, adjust PH=12, stir 50min, 8 parts of cationic surfaces is added and lives
Property agent EST and 10 parts of anion surfactant ABS, stirring is warming up to 80 DEG C, and stirring insulation 2h is centrifuged after cooling,
Dry, pulverized and sieved after cooling to intercalation modifying diatomite at 100 DEG C, obtained intercalation modifying diatomite is added to and is equipped with
In the flask of 6.4 parts of coupling agent KH-560 and 80 parts of acetone, 50 DEG C, stirring reaction 1.5h are heated to, volatilization acetone, cooling, is done
Dry, sieving obtains the nano diatomite.
Beneficial effect：Purification of water quality composite prepared by the present invention, by Na-LTA/MCM-42 composite molecular screens with strong oxygen
The processing of agent potassium permanganate oxidation carries out organic monoacid modification again, weakens the adhesion between composite molecular screen, makes interlayer brilliant
Lattice split, and expand interlamellar spacing, and specific surface area increase is big, porosity improves, and the addition of surfactant changes nano material
Surface it is highly polar, interlayer is changed into lipophile by hydrophily, reduce its surface energy；In addition, modified nano diatomite
There are macropore and micropore, the contact area of composite molecular screen and metal ion can be increased, improve adsorbance, enhance
Molecular sieve adsorption mass transport process, play the dual-use function of quick adsorption and secondary filter purification metal ion.
Embodiment
Embodiment 1
A kind of nano composite material to purify water, its method comprise the following steps：
2 parts of 10 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 20 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.
Described modification Na-LTA/MCM-42 composite molecular screen preparation methods are as follows：
Step 1, the grinding of 25 parts of Na-LTA zeolites is screened to 100 mesh, then the Na-LTA zeolite powders after sieving are placed in electric furnace and added
After being heated to 1000 DEG C of insulation 3h in thermal with 10 DEG C/min heating rate, Na-LTA powder is made；
Step 2,10 parts of MCM-42 zeolite molecular sieves powder are mixed with 25 parts of obtained Na-LTA powder, then add 30 parts
Glycerine fusion agent stirs, the oil bath 2h at 300 DEG C, stands more than 1h at room temperature, discards supernatant, cleaned with ultra-pure water
Lower floor's material, obtains composite molecular screen；
Step 3 and then 9 parts of potassium permanganate are slowly added into 35 parts of above-mentioned composite molecular screens, add speed and strictly control, with
Ensure that temperature is less than 20 DEG C, then remove ice bath, using water-bath and maintain the temperature at 35 DEG C or so, be incubated 2 hours, stir lower slow
Slowly 120 parts of deionized waters are initially added into, system is fiercely warming up to 98 DEG C, rear to be kept for 15 minutes with 98 DEG C of water-baths；
Step 4 and then further diluted with 80 parts of warms, 60 DEG C of deionized waters, then add excessive 30% hydrogen peroxide with Reduction Body
Remaining potassium permanganate and be manganese dioxide in system, is filtered while hot, is 1 with volume ratio:10 hydrochloric acid solution washed once, washing
Three times, 45 DEG C of dryings in an oven.
Step 5, the oxidation composite molecular screen grind into powder by above-mentioned preparation, to ensure abundant expanded by heating, progressively rise
Temperature loads in tube furnace to 200 DEG C, heats and is sealed at the mouth of pipe, and thermocouple is contacted to ensure that thermometric is accurate with heating bottom of the tube.Heat
After expansion terminates, oxidation modification Na-LTA/MCM-42 nano materials are obtained.
Described nano diatomite preparation method is as follows：
10 portions of diatoms are added into part to go in 400 parts of deionized waters, adjust PH=12, stir 50min, 8 parts of cationic surfaces is added and lives
Property agent EST and 10 parts of anion surfactant ABS, stirring is warming up to 80 DEG C, and stirring insulation 2h is centrifuged after cooling,
Dry, pulverized and sieved after cooling to intercalation modifying diatomite at 100 DEG C, obtained intercalation modifying diatomite is added to and is equipped with
In the flask of 6.4 parts of coupling agent KH-560 and 80 parts of acetone, 50 DEG C, stirring reaction 1.5h are heated to, volatilization acetone, cooling, is done
Dry, sieving obtains the nano diatomite.
Embodiment 2
6 parts of 20 parts of nano diatomite, 15 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 10 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.Its
Remaining preparation and embodiment 1 are identical.
Embodiment 3
2 parts of 20 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 10 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 35 parts of modified Na-LTA/MCM-42 composite molecular screens and 5 parts of 4-cresotinic acids, and temperature rises to
40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting is
80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.Remaining
Prepare and embodiment 1 is identical.
Embodiment 4
2 parts of 15 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 40 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.Its
Remaining preparation and embodiment 1 are identical.
Embodiment 5
2 parts of 10 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 20 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.Its
Remaining preparation and embodiment 1 are identical.
Embodiment 6
6 parts of 25 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 15 parts of modified Na-LTA/MCM-42 composite molecular screens and 25 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.Its
Remaining preparation and embodiment 1 are identical.
Embodiment 7
4 parts of 19 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 3 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 11 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.Its
Remaining preparation and embodiment 1 are identical.
Embodiment 8
1 part of 8 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added in 6 parts of 4-methoxyl group butyric acid,
Temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 1 part of 4 parts of sodium metasilicate, 3 parts of hexafluorosilicic acid barium and sodium tripolyphosphate
Add in the mixed liquor of 16 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature rises to 40
DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting 80
DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.
Remaining is prepared and embodiment 1 is identical.
Embodiment 9
2 parts of 28 parts of nano diatomite, 8 parts of three silicic acid, two magnesium and Inflamase are added to 2 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 2 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and sodium tripolyphosphate
8 parts add in the mixed liquor of 14 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, and temperature rises to
40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting is
80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.
Remaining is prepared and embodiment 1 is identical.
Embodiment 10
14 parts of 7 parts of nano diatomite, 15 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 14 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.
Remaining is prepared and embodiment 1 is identical.
Embodiment 11
2 parts of 10 parts, 10 parts modified montmorillonoids of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts
In 4-methoxyl group butyric acid, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, hexafluorosilicic acid barium 8
The 1 part of mixing for adding 20 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids of part and sodium tripolyphosphate
In liquid, temperature rises to 40 DEG C, stirs 15min, obtains mixture B；Then mixture A and B are added sequentially to 14 parts of isopropanols
In, temperature setting is 80 DEG C, stands reaction 20min, and can obtain the purification of water quality after drying, granulation processing after receives
Nano composite material.
Described modified montmorillonoid preparation method is as follows：
25 parts of montmorillonites are put into the liquor alumini chloridi of appropriate mass fraction 8% at 90 DEG C and stirred 5 hours, filters, washs into
Property, drying is dispersed in the deionized water solution of ethanol one, adds 18 parts of octadecylamines in 60 DEG C of stirred in water bath 4 hours, is surpassed
Sound is scattered 30 minutes, filters, and washing, is dried under vacuum to constant weight, grinds, sieves and produce modified montmorillonoid.
Reference examples 1
It is with the difference of embodiment 1：In modified Na-LTA/MCM-42 composite molecular screens preparation process 2,20 parts of MCM-42 are boiled
Stone molecular sieve powder mixes with 5 parts of obtained Na-LTA powder, and remaining step is identical with embodiment 1.
Reference examples 2
It is with the difference of embodiment 1：In modified Na-LTA/MCM-42 composite molecular screens preparation process 2,5 parts of MCM-42 are boiled
Stone molecular sieve powder mixes with 35 parts of obtained Na-LTA powder, and remaining step is identical with embodiment 1.
Reference examples 3
It is with the difference of embodiment 1：In modified Na-LTA/MCM-42 composite molecular screens preparation process 3, mix above-mentioned multiple to 35 parts
Close in molecular sieve and be slowly added to 30 parts of potassium permanganate, remaining step is identical with embodiment 1.
Reference examples 4
It is with the difference of embodiment 1：In modified Na-LTA/MCM-42 composite molecular screens preparation process 3, mix above-mentioned multiple to 35 parts
Close in molecular sieve and be slowly added to 3 parts of potassium permanganate, remaining step is identical with embodiment 1.
Reference examples 5
It is with the difference of embodiment 1：It is 1 with volume ratio in modified Na-LTA/MCM-42 composite molecular screens preparation process 4:1
Hydrochloric acid solution washed once, remaining step is identical with embodiment 1.
Reference examples 6
It is with the difference of embodiment 1：It is 10 with volume ratio in modified Na-LTA/MCM-42 composite molecular screens preparation process 4:1
Hydrochloric acid solution washed once, remaining step is identical with embodiment 1.
Reference examples 7
It is with the difference of embodiment 1：In the step of prepared by nano diatomite, 2 parts of cationic surfactant EST and 20 are added
Part anion surfactant ABS, remaining step are identical with embodiment 1.
Reference examples 8
It is with the difference of embodiment 1：In the step of prepared by nano diatomite, 18 parts of cationic surfactant EST and 2 are added
Part anion surfactant ABS, remaining step are identical with embodiment 1.
Reference examples 9
It is with the difference of embodiment 1：In the step of prepared by nano diatomite, obtained intercalation modifying diatomite is added to dress
In the flask for having 13 parts of coupling agent KH-560 and 80 parts of acetone, remaining step is identical with embodiment 1.
Reference examples 10
It is with the difference of embodiment 1：In the step of prepared by nano diatomite, obtained intercalation modifying diatomite is added to dress
In the flask for having 2 parts of coupling agent KH-560 and 40 parts of acetone, remaining step is identical with embodiment 1.
Choose the nano composite material being prepared and carry out adsorption of metal ions performance detection, foundation respectively《Drinking Water mark
Quasi- method of inspection》GB5750-85, underwater gold category ion concentration are primarily referred to as the concentration of calcium ion, magnesium ion, unit mg/L.
The assay of adsorption of metal ions test
Test result indicates that nano composite material provided by the invention has good metal ion clean-up effect, material is in standard
Under test condition, the ion concentration after water process is lower, and clearance is higher, illustrates that clean-up effect is better, conversely, effect is poorer；
Embodiment 1 arrives embodiment 10, and calcium ions and magnesium ions clearance has exceeded 75%, changes each raw material composition in scavenging material respectively
Proportioning, has different degrees of influence to the purifying property of material, in nano diatomite and modified compound point of Na-LTA/MCM-42
Son sieve proportioning is 1：2, when other dispensing dosages are fixed, purifying property and metal ion removal effect are best；It is worth noting that
Embodiment 11 adds modified montmorillonoid, and clean-up effect significantly improves, and illustrates that nano imvite has to the absorption property of filling-material structure
More preferable optimization function；Reference examples 1 to reference examples 4 change the proportioning of two kinds of zeolite molecular sieves and the use of oxidant potassium permanganate
Amount, clean-up effect are decreased obviously, and illustrate that the structural property of mixed molecular sieve receives the considerable influence of the two proportioning, simultaneous oxidation agent
How many pairs of oxidation modifications play an important role；Reference examples 5 change SNa-LTA/MCM-42 composite molecular screen washing acids to reference examples 6
Concentration, effect is also bad, illustrates that the acidity of cleaning solution plays an important role to the adsorption of modification of composite molecular screen；The He of reference examples 7
Example 8 changes the proportioning that nano diatomite prepares negative and positive surfactant, and clean-up effect substantially reduces, and illustrates surfactant
It is very big that the nano diatomite of dosage is modified influence；Reference examples 9 and example 10, change the dosage of coupling agent, and effect is still bad, says
Bright silane coupler changes to structure of diatomite produces material impact；Therefore the nano composite material prepared using the present invention has good
Good metal ion clean-up effect.
Claims (3)
1. a kind of nano composite material to purify water, it is characterised in that its preparation method comprises the following steps：
2 parts of 10 parts of nano diatomite, 5 parts of three silicic acid, two magnesium and Inflamase are added to 6 parts of 4-methoxyl group butyric acid
In, temperature rises to 60 DEG C, stirs 10min, obtains mixture A；By 12 parts of sodium metasilicate, 8 parts of hexafluorosilicic acid barium and tripolyphosphate
1 part of sodium is added in the mixed liquor of 20 parts of modified Na-LTA/MCM-42 composite molecular screens and 10 parts of 4-cresotinic acids, temperature liter
To 40 DEG C, 15min is stirred, obtains mixture B；Then mixture A and B are added sequentially in 14 parts of isopropanols, temperature setting
For 80 DEG C, reaction 20min is stood, the purification of water quality nano composite material is can obtain after drying, granulation processing after.
A kind of 2. nano composite material to purify water according to claim 1, it is characterised in that
Described modification Na-LTA/MCM-42 composite molecular screen preparation methods are as follows：
Step 1, the grinding of 25 parts of Na-LTA zeolites is screened to 100 mesh, then the Na-LTA zeolite powders after sieving are placed in electric furnace and added
After being heated to 1000 DEG C of insulation 3h in thermal with 10 DEG C/min heating rate, Na-LTA powder is made；
Step 2,10 parts of MCM-42 zeolite molecular sieves powder are mixed with 25 parts of obtained Na-LTA powder, then add 30 parts
Glycerine fusion agent stirs, the oil bath 2h at 300 DEG C, stands more than 1h at room temperature, discards supernatant, cleaned with ultra-pure water
Lower floor's material, obtains composite molecular screen；
Step 3 and then 9 parts of potassium permanganate are slowly added into 35 parts of above-mentioned composite molecular screens, add speed and strictly control, with
Ensure that temperature is less than 20 DEG C, then remove ice bath, using water-bath and maintain the temperature at 35 DEG C or so, be incubated 2 hours, stir lower slow
Slowly 120 parts of deionized waters are initially added into, system is fiercely warming up to 98 DEG C, rear to be kept for 15 minutes with 98 DEG C of water-baths；
Step 4 and then further diluted with 80 parts of warms, 60 DEG C of deionized waters, then add excessive 30% hydrogen peroxide with Reduction Body
Remaining potassium permanganate and be manganese dioxide in system, is filtered while hot, is 1 with volume ratio:10 hydrochloric acid solution washed once, washing
Three times, 45 DEG C of dryings in an oven;
Step 5, the oxidation composite molecular screen grind into powder by above-mentioned preparation, to ensure abundant expanded by heating, are progressively warming up to
200 DEG C, load in tube furnace, heat and sealed at the mouth of pipe, thermocouple is contacted to ensure that thermometric is accurate with heating bottom of the tube;
After thermal expansion terminates, oxidation modification Na-LTA/MCM-42 nano materials are obtained.
A kind of 3. nano composite material to purify water according to claim 1, it is characterised in that described nano diatomite
Preparation method is as follows：
10 portions of diatoms are added into part to go in 400 parts of deionized waters, adjust PH=12, stir 50min, 8 parts of cationic surfaces is added and lives
Property agent EST and 10 parts of anion surfactant ABS, stirring is warming up to 80 DEG C, and stirring insulation 2h is centrifuged after cooling,
Dry, pulverized and sieved after cooling to intercalation modifying diatomite at 100 DEG C, obtained intercalation modifying diatomite is added to and is equipped with
In the flask of 6.4 parts of coupling agent KH-560 and 80 parts of acetone, 50 DEG C, stirring reaction 1.5h are heated to, volatilization acetone, cooling, is done
Dry, sieving obtains the nano diatomite.
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| CN (1) | CN107855099A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797108A (en) * | 2018-05-23 | 2018-11-13 | 宁波必博母婴科技有限公司 | A kind of preparation method of antibacterial green textile fabric for baby |
| CN109020491A (en) * | 2018-09-30 | 2018-12-18 | 柳晶（长春）环保科技有限公司 | A kind of high resistance to compression pervious floor tile |
-
2017
- 2017-11-10 CN CN201711102721.3A patent/CN107855099A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797108A (en) * | 2018-05-23 | 2018-11-13 | 宁波必博母婴科技有限公司 | A kind of preparation method of antibacterial green textile fabric for baby |
| CN109020491A (en) * | 2018-09-30 | 2018-12-18 | 柳晶（长春）环保科技有限公司 | A kind of high resistance to compression pervious floor tile |
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Application publication date: 20180330 |