CN105032353A - Preparation method and application of modified activated carbon - Google Patents
Preparation method and application of modified activated carbon Download PDFInfo
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- CN105032353A CN105032353A CN201510453112.7A CN201510453112A CN105032353A CN 105032353 A CN105032353 A CN 105032353A CN 201510453112 A CN201510453112 A CN 201510453112A CN 105032353 A CN105032353 A CN 105032353A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 143
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 21
- 238000001179 sorption measurement Methods 0.000 claims description 20
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims description 18
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 18
- 229910001385 heavy metal Inorganic materials 0.000 claims description 16
- 229910001430 chromium ion Inorganic materials 0.000 claims description 12
- 238000007598 dipping method Methods 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 10
- 239000000975 dye Substances 0.000 claims description 8
- 238000005470 impregnation Methods 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000009210 therapy by ultrasound Methods 0.000 abstract 2
- 239000011651 chromium Substances 0.000 description 19
- 235000012721 chromium Nutrition 0.000 description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 15
- 229910052804 chromium Inorganic materials 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 239000002893 slag Substances 0.000 description 5
- 210000003491 skin Anatomy 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000711 cancerogenic effect Effects 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 231100000315 carcinogenic Toxicity 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- HAXVIVNBOQIMTE-UHFFFAOYSA-L disodium;2-(carboxylatomethylamino)acetate Chemical compound [Na+].[Na+].[O-]C(=O)CNCC([O-])=O HAXVIVNBOQIMTE-UHFFFAOYSA-L 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 206010012435 Dermatitis and eczema Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000009267 bronchiectasis Diseases 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- BCFSVSISUGYRMF-UHFFFAOYSA-N calcium;dioxido(dioxo)chromium;dihydrate Chemical compound O.O.[Ca+2].[O-][Cr]([O-])(=O)=O BCFSVSISUGYRMF-UHFFFAOYSA-N 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000009395 genetic defect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 210000002850 nasal mucosa Anatomy 0.000 description 1
- 210000000492 nasalseptum Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a preparation method and application of modified activated carbon and belongs to the technical field of novel material preparation. The preparation method comprises the following steps: firstly, adding waste activated carbon according to the solid-to-liquid ratio of (10-20):(50-100)g/ml in a cupric nitrate solution with the concentration of 0.05-0.15 mol/L, steeping for 4-12 h at the room temperature, starting ultrasonic treatment for 30-120 min at the starting of the steeping, filtering the steeped waste activated carbon, and roasting the filtered and steeped waste activated carbon for 10-30 min at the microwave power of 200-500 W and the roasting temperature of 700-900 DEG C to obtain the modified activated carbon. According to the invention, the waste activated carbon is adopted as the raw material, ultrasonic treatment is adopted for cupric nitrate steeping at the earlier stage, and microwave heating is adopted for high-temperature roasting at the later period to efficiently load copper on the surface of activated carbon.
Description
Technical field
The present invention relates to a kind of preparation method of modified activated carbon and the application of modified activated carbon, belong to technical field of new material preparation.
Background technology
Active carbon, because of its huge specific area, flourishing pore structure and extremely strong adsorption capacity, has been widely used in multiple fields such as chemical industry, pharmacy, environmental protection.Along with the development of human society, the consumption of active carbon is increasing, the discarded active carbon produced get more and more, and if use after effectively do not process, very easily severe contamination is caused to surrounding enviroment.How to utilize discarded active carbon, mainly regenerating waste active carbon recovers its absorption property at present, and recycle although this way makes discarded active carbon obtain to a certain extent, its surcharge is lower comparatively speaking.Therefore find other suitable methods significant to the comprehensive utilization of resources efficiency improving discarded active carbon.
Cr VI is the property swallowed poisonous substance/imbedibility pole poisonous substance, and skin contact may cause sensitivity; More may cause inherited genetic defects, sucking may be carcinogenic, has lasting danger to environment.Cr VI is easy to be absorbed by the body, and it invades human body by digestion, respiratory tract, skin and mucous membrane.Have report, by breathe air containing hoarse, the Atrophic nasal mucosas that have during the chromic anhybride of variable concentrations in various degree, also can make perforation of nasal septum and bronchiectasis etc. time serious.Can cause vomiting when alimentary canal invades, abdomen pain.Dermatitis and eczema can be produced when skin invades.Endanger maximum be long-term short term contact or suck time have carcinogenic danger.Often produce l ton sodium dichromate and produce chromium slag 3.0-3.5 tons simultaneously.Approximately 20 1 30 ten thousand tons of chromium slags are discharged every year in domestic metallurgy and chemical industry.Harmful components in chromium slag are the hexavalent chromium such as solubility sodium chromate, acid-soluble calcium chromate mainly.The contamination hazard formed ecological environment due to these Cr VIs and its loss diffusion.Next is the strong basicity harm of chromium slag.When chromium slag is stored up in the open, hexavalent chromiums a large amount of after long-term rain shower moltenly to ooze with rainwater, run off, infiltrates earth's surface, thus polluted underground water, also pollute rivers, lake, and then harm farmland, aquatic products and health.Hexavalent chromium is very large to the murder by poisoning of health.Its compound has very strong oxidation, has harm to the alimentary canal of human body, respiratory tract, skin and mucous membrane.Chromium has carcinogenesis what is more, the position mainly lung that chromium is carcinogenic.Therefore effective method is found to remove Cr VI in waste water significant.
The present invention is with discarded active carbon for raw material, and early stage, copper nitrate dipping adopted ultrasonic wave process, and later stage high-temperature roasting adopts heating using microwave, allows activated carbon surface supported copper efficiently.The method has accomplished to turn waste into wealth, and achieves recycling of discarded object, is conducive to the pressure alleviating resource and environment, has superior economy and ecological benefits.In addition modified activated carbon out prepared by can process fuel waste water again can Adsorption of Heavy Metals chromium ion, is a kind of new material.Prepared modified activated carbon not only has extraordinary adsorption effect to methylene blue, can reach more than 460mg/g, but also heavy metal chromium ion has good adsorption effect, can reach more than 100mg/g.This is just for the comprehensive utilization of resources efficiency improving discarded active carbon provides a practicable method.
Applicant is in the patent of 201410203547.1 in the patent No., disclose " a kind of modified activated carbon and preparation method thereof ", the present invention with active carbon (AC) for raw material, activated carbon surface impurity is removed through hydrochloric acid purifying, again the active carbon after purifying is obtained after nitric acid treatment the active carbon (AC-COOH) of surface containing-COOH, under toluene solution, the surperficial active carbon containing-COOH and thionyl chloride react, obtain AC-COCl, the active carbon modified through thionyl chloride and diethylenetriamine generation graft reaction, obtain AC-DETA, active carbon modified for diethylenetriamine and salicylide are reacted, last again through sodium borohydride reduction, obtain final modified activated carbon AC-DETA-Sal.Foregoing invention is compared with the present invention, and one is that just heavy metal chromium has adsorption effect, and maximal absorptive capacity only has 39.1mg/g; Two be foregoing invention adopt be prepare modified activated carbon with good active carbon, add financial cost.
Applicant is in the patent of 201410851287.9 in the patent No., disclose " a kind of preparation method of the modified activated carbon for heavy metal containing wastewater treatment ", this method be first by washing active carbon, oven dry, grind, sieve, the particle diameter controlling active carbon, at 150 ~ 250um, is then immersed in distilled water and makes to be full of water in its hole; Adopt again and blow pure air and make active carbon be fluidized state, spray into oxidant and carry out controllable oxidization, make oxidation mainly occur in activated carbon surface and produce carboxyl, hydroxyl isoreactivity group; Then with N-(2,3-glycidyl) Iminodiacetic acid sodium salt is connected on activated carbon surface by epoxy ring-opening by Iminodiacetic acid sodium salt in aprotic polar solvent, chelate can be formed with contents of many kinds of heavy metal ion, improve the adsorption capacity of activated carbon surface heavy metal ion.Foregoing invention is compared with the present invention: one is that said method technological process in preparation process is long, not only makes experimental implementation become complicated cost and adds, but also introduce gas chromatography; Two is that it has certain adsorption effect to organic pollution, but adsorbance is general; And the present invention one does not introduce any auxiliary organic reagent, basic cleanliness without any pollution, operation is also simple, and energy consumption is also very low; Two be adopt be discarded activated carbon modified, turn waste into wealth, drastically increase comprehensive utilization ratio and the surcharge thereof of discarded object; Three is that modified activated carbon prepared by the present invention not only has extraordinary adsorption effect to methylene blue, can reach more than 460mg/g, but also heavy metal chromium ion has good adsorption effect, can reach more than 100mg/g.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the invention provides a kind of preparation method of modified activated carbon and the application of modified activated carbon.The present invention is with discarded active carbon for raw material, and early stage, copper nitrate dipping adopted ultrasonic wave process, and later stage high-temperature roasting adopts heating using microwave, allows activated carbon surface supported copper efficiently.The method has accomplished to turn waste into wealth, and achieves recycling of discarded object, is conducive to the pressure alleviating resource and environment, has superior economy and ecological benefits.The present invention is achieved through the following technical solutions.
A kind of preparation method of modified activated carbon, its concrete steps are as follows: be first that to join concentration be at room temperature flood 4 ~ 12h in the copper nitrate solution of 0.05 ~ 0.15mol/L to 10 ~ 20:50 ~ 100g/ml by discarded active carbon according to solid-to-liquid ratio, dipping starts just to open ultrasonic wave process 30 ~ 120min, by after the discarded activated carbon filtration of impregnation process, microwave power be 200 ~ 500W, sintering temperature be 700 ~ 900 DEG C of conditions under roasting 10 ~ 30min prepare modified activated carbon.
Described discarded active carbon is 150 ~ 300 orders, and methylene blue value is 20 ~ 50mg/g.
An application for modified activated carbon, described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
The invention has the beneficial effects as follows:
(1) this method production technology is very simple, and operation is quite simple, and energy consumption is lower, with low cost, and pollution-free;
(2) this method takes ultrasonic microwave to combine to prepare the mode of modified activated carbon, not only make use of hyperacoustic cavitation and super immixture, it can the dipping effect of effective active charcoal in copper nitrate solution, for microwave calcining effect is laid a good foundation below; Make use of the feature that microwave heats from the inside to surface and different material wave-absorbing effect is different in addition, the water of copper nitrate solution on rapid evaporation active carbon, allow the rapid polycondensation crystallization of copper nitrate, fast decoupled forms cupric oxide loaded article at activated carbon surface;
(3) modified activated carbon that prepared by this method not only has extraordinary adsorption effect to methylene blue, can reach more than 460mg/g, but also heavy metal chromium ion has good adsorption effect, can reach more than 100mg/g;
(4) discarded active carbon is not only turned waste into wealth by this method, achieves the comprehensive utilization of resources of this discarded object, decreases the discharge of discarded object, decreases environmental pollution, have effectively achieved the sustainable development of enterprise; And the modified activated carbon of preparation has several functions, it is a kind of well new material.
Accompanying drawing explanation
Fig. 1 is that the embodiment of the present invention 1 discards active carbon scanning electron microscope (SEM) photograph;
Fig. 2 is the modified activated carbon scanning electron microscope (SEM) photograph that the embodiment of the present invention 1 prepares;
Fig. 3 is the modified activated carbon partial sweep Electronic Speculum figure that the embodiment of the present invention 1 prepares.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment methylene blue value measures according to standard GB/T/T12496.10-1999, and Adsorption of Chromium amount measures according to standard GB/T/T15555.7-1995.
Embodiment 1
The preparation method of this modified activated carbon, its concrete steps are as follows: first 10g being discarded active carbon according to solid-to-liquid ratio is that to join concentration be at room temperature flood 12h in the copper nitrate solution of 0.10mol/L to 10:50g/ml, dipping starts just to open ultrasonic wave process 60min, by after the discarded activated carbon filtration of impregnation process, microwave power be 300W, sintering temperature be 800 DEG C of conditions under roasting 20min prepare modified activated carbon.Wherein discarded active carbon is 150 orders, and methylene blue value is 20mg/g, and as shown in Figure 1, modified activated carbon scanning electron microscope (SEM) photograph as shown in Figures 2 and 3 for discarded active carbon scanning electron microscope (SEM) photograph.
The application of above-mentioned modified activated carbon, described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
The methylene blue value of the modified activated carbon prepared through above-mentioned steps is 480.0mg/g, and inhaling chromium amount is 120.0mg/g.
Embodiment 2
The preparation method of this modified activated carbon, its concrete steps are as follows: first 15g being discarded active carbon according to solid-to-liquid ratio is that to join concentration be at room temperature flood 8h in the copper nitrate solution of 0.15mol/L to 15:50g/ml, dipping starts just to open ultrasonic wave process 30min, by after the discarded activated carbon filtration of impregnation process, microwave power be 400W, sintering temperature be 850 DEG C of conditions under roasting 15min prepare modified activated carbon.Wherein discarded active carbon is 300 orders, and methylene blue value is 50mg/g.
The application of above-mentioned modified activated carbon, described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
The methylene blue value of the modified activated carbon prepared through above-mentioned steps is 465.0mg/g, and inhaling chromium amount is 135.0mg/g.
Embodiment 3
The preparation method of this modified activated carbon, its concrete steps are as follows: first 20g being discarded active carbon according to solid-to-liquid ratio is that to join concentration be at room temperature flood 4h in the copper nitrate solution of 0.10mol/L to 20:100g/ml, dipping starts just to open ultrasonic wave process 120min, by after the discarded activated carbon filtration of impregnation process, microwave power be 200W, sintering temperature be 750 DEG C of conditions under roasting 30min prepare modified activated carbon.Wherein discarded active carbon is 250 orders, and methylene blue value is 40mg/g.
The application of above-mentioned modified activated carbon, described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
The methylene blue value of the modified activated carbon prepared through above-mentioned steps is 450.0mg/g, and inhaling chromium amount is 140.0mg/g.
Embodiment 4
The preparation method of this modified activated carbon, its concrete steps are as follows: first 20g being discarded active carbon according to solid-to-liquid ratio is that to join concentration be at room temperature flood 12h in the copper nitrate solution of 0.05mol/L to 20:60g/ml, dipping starts just to open ultrasonic wave process 60min, by after the discarded activated carbon filtration of impregnation process, microwave power be 300W, sintering temperature be 900 DEG C of conditions under roasting 20min prepare modified activated carbon.Wherein discarded active carbon is 200 orders, and methylene blue value is 30mg/g.
The application of above-mentioned modified activated carbon, described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
The methylene blue value of the modified activated carbon prepared through above-mentioned steps is 485.0mg/g, and inhaling chromium amount is 125.0mg/g.
Embodiment 5
The preparation method of this modified activated carbon, its concrete steps are as follows: first 10g being discarded active carbon according to solid-to-liquid ratio is that to join concentration be at room temperature flood 8h in the copper nitrate solution of 0.10mol/L to 10:100g/ml, dipping starts just to open ultrasonic wave process 40min, by after the discarded activated carbon filtration of impregnation process, microwave power be 300W, sintering temperature be 800 DEG C of conditions under roasting 25min prepare modified activated carbon.Wherein discarded active carbon is 250 orders, and methylene blue value is 40mg/g.
The application of above-mentioned modified activated carbon, described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
The methylene blue value of the modified activated carbon prepared through above-mentioned steps is 490.0mg/g, and inhaling chromium amount is 115.0mg/g.
Embodiment 6
The preparation method of this modified activated carbon, its concrete steps are as follows: first 10g being discarded active carbon according to solid-to-liquid ratio is that to join concentration be at room temperature flood 8h in the copper nitrate solution of 0.08mol/L to 10:100g/ml, dipping starts just to open ultrasonic wave process 80min, by after the discarded activated carbon filtration of impregnation process, microwave power be 500W, sintering temperature be 700 DEG C of conditions under roasting 10min prepare modified activated carbon.Wherein discarded active carbon is 250 orders, and methylene blue value is 40mg/g.
The application of above-mentioned modified activated carbon, described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
The methylene blue value of the modified activated carbon prepared through above-mentioned steps is 470.0mg/g, and inhaling chromium amount is 128mg/g.
Below by reference to the accompanying drawings the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (3)
1. the preparation method of a modified activated carbon, it is characterized in that concrete steps are as follows: be first that to join concentration be at room temperature flood 4 ~ 12h in the copper nitrate solution of 0.05 ~ 0.15mol/L to 10 ~ 20:50 ~ 100g/ml by discarded active carbon according to solid-to-liquid ratio, dipping starts just to open ultrasonic wave process 30 ~ 120min, by after the discarded activated carbon filtration of impregnation process, microwave power be 200 ~ 500W, sintering temperature be 700 ~ 900 DEG C of conditions under roasting 10 ~ 30min prepare modified activated carbon.
2. the preparation method of modified activated carbon according to claim 1, is characterized in that: described discarded active carbon is 150 ~ 300 orders, and methylene blue value is 20 ~ 50mg/g.
3. an application for modified activated carbon according to claim 1 and 2, is characterized in that: described modified activated carbon again can Adsorption of Heavy Metals chromium ion for the treatment of waste water from dyestuff.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289490A (en) * | 2015-11-12 | 2016-02-03 | 福州大学 | Loaded-type bamboo shell adsorbent used for absorbing and separating rhenium as well as preparation method thereof |
| CN105749862A (en) * | 2016-03-23 | 2016-07-13 | 中国地质调查局西安地质调查中心 | Method for reducing content of heavy metal in river water by using activated carbon modified through nitric acid oxidation |
| CN106745411A (en) * | 2017-02-16 | 2017-05-31 | 华北水利水电大学 | A kind of water treatment agent and preparation method thereof |
| CN108325527A (en) * | 2018-03-27 | 2018-07-27 | 昆明理工大学 | A kind of Cu2The preparation method and applications of O-AC photochemical catalysts |
| CN108940180A (en) * | 2018-08-28 | 2018-12-07 | 昆明理工大学 | A method of adsorbent is prepared with useless mercuric chloride catalyst |
| CN108970619A (en) * | 2018-09-03 | 2018-12-11 | 昆明理工大学 | It is a kind of to carry Fe-Zn catalysis material using useless mercury catalyst preparation |
| CN109012576A (en) * | 2018-07-02 | 2018-12-18 | 昆明理工大学 | A kind of preparation method and application loading cuprous oxide particle active carbon |
| CN109012577A (en) * | 2018-07-02 | 2018-12-18 | 昆明理工大学 | A kind of useless copper-loaded method for preparing adsorbent of mercury catalyst of outfield intensifying |
| CN109012578A (en) * | 2018-07-02 | 2018-12-18 | 昆明理工大学 | A kind of methods and applications of chemical ion exchange-roasting method preparation Activated Carbon with Cu |
| WO2021005255A1 (en) * | 2019-07-10 | 2021-01-14 | Universidad Carlos Iii De Madrid | Method for obtaining copper double salt nanocompounds and use thereof as a catalyst and microbicide |
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| WO2008143831A2 (en) * | 2007-05-14 | 2008-11-27 | Corning Incorporated | Sorbent bodies comprising activated carbon, processes for making them, and their use |
| CN103111290A (en) * | 2013-03-18 | 2013-05-22 | 哈尔滨工业大学 | Preparation method of catalyst for catalyzing ozonation for advanced treatment of coal chemical wastewater |
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2015
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| CN105289490A (en) * | 2015-11-12 | 2016-02-03 | 福州大学 | Loaded-type bamboo shell adsorbent used for absorbing and separating rhenium as well as preparation method thereof |
| CN105289490B (en) * | 2015-11-12 | 2018-05-04 | 福州大学 | A kind of support type bamboo shoot shell adsorbent for adsorbing separation rhenium and preparation method thereof |
| CN105749862A (en) * | 2016-03-23 | 2016-07-13 | 中国地质调查局西安地质调查中心 | Method for reducing content of heavy metal in river water by using activated carbon modified through nitric acid oxidation |
| CN106745411A (en) * | 2017-02-16 | 2017-05-31 | 华北水利水电大学 | A kind of water treatment agent and preparation method thereof |
| CN108325527A (en) * | 2018-03-27 | 2018-07-27 | 昆明理工大学 | A kind of Cu2The preparation method and applications of O-AC photochemical catalysts |
| CN108325527B (en) * | 2018-03-27 | 2021-01-05 | 昆明理工大学 | Cu2Preparation method and application of O-AC photocatalyst |
| CN109012578A (en) * | 2018-07-02 | 2018-12-18 | 昆明理工大学 | A kind of methods and applications of chemical ion exchange-roasting method preparation Activated Carbon with Cu |
| CN109012576A (en) * | 2018-07-02 | 2018-12-18 | 昆明理工大学 | A kind of preparation method and application loading cuprous oxide particle active carbon |
| CN109012577A (en) * | 2018-07-02 | 2018-12-18 | 昆明理工大学 | A kind of useless copper-loaded method for preparing adsorbent of mercury catalyst of outfield intensifying |
| CN108940180A (en) * | 2018-08-28 | 2018-12-07 | 昆明理工大学 | A method of adsorbent is prepared with useless mercuric chloride catalyst |
| CN108970619A (en) * | 2018-09-03 | 2018-12-11 | 昆明理工大学 | It is a kind of to carry Fe-Zn catalysis material using useless mercury catalyst preparation |
| WO2021005255A1 (en) * | 2019-07-10 | 2021-01-14 | Universidad Carlos Iii De Madrid | Method for obtaining copper double salt nanocompounds and use thereof as a catalyst and microbicide |
| ES2802422A1 (en) * | 2019-07-10 | 2021-01-19 | Univ Madrid Carlos Iii | METHOD OF OBTAINING NANO-COMPOUNDS OF DOUBLE COPPER SALTS AND ITS USE AS CATALYST AND MICROBICIDE (Machine-translation by Google Translate, not legally binding) |
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