CN106669596A - Preparation of CNX modified diatomite and method for taking advantage of CNX modified diatomite to adsorb Congo red waste water - Google Patents
Preparation of CNX modified diatomite and method for taking advantage of CNX modified diatomite to adsorb Congo red waste water Download PDFInfo
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- CN106669596A CN106669596A CN201710011256.6A CN201710011256A CN106669596A CN 106669596 A CN106669596 A CN 106669596A CN 201710011256 A CN201710011256 A CN 201710011256A CN 106669596 A CN106669596 A CN 106669596A
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- CN
- China
- Prior art keywords
- composite material
- congo red
- diatomite composite
- cnx
- load
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- IQFVPQOLBLOTPF-HKXUKFGYSA-L congo red Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(/N=N/C3=CC=C(C=C3)C3=CC=C(C=C3)/N=N/C3=C(C4=CC=CC=C4C(=C3)S([O-])(=O)=O)N)=CC(S([O-])(=O)=O)=C21 IQFVPQOLBLOTPF-HKXUKFGYSA-L 0.000 title claims abstract description 38
- 239000002351 wastewater Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- -1 CNX modified diatomite Chemical class 0.000 title abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000002131 composite material Substances 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000003463 adsorbent Substances 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000001044 red dye Substances 0.000 claims abstract 2
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 230000009514 concussion Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 9
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 229920000877 Melamine resin Polymers 0.000 abstract 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 4
- 229920000742 Cotton Polymers 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000975 dye Substances 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- 241000222065 Lycoperdon Species 0.000 description 1
- 241000768494 Polymorphum Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- B01J20/28014—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 form
- B01J20/28023—Fibres or filaments
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides preparation of CNX modified diatomite and a method for taking advantage of the CNX modified diatomite to adsorb Congo red waste water, belonging to the technical field of waste water absorption. Melamine and diatomite are added into a reactor, the melamine and the diatomite are arranged in a water bath kettle at the temperature of 60-90 DEG C for dissolution, after the melamine is completely dissolved, nitric acid is diluted, the ratio of melamine mass to diatomite mass to a dilute nitric acid volume is (1-5g):(0.5-3g):10ml, the prepared solution is stirred in the water bath kettle for 10-30min, then, the solution is taken out to cool in air, after the solution takes the shape of a solid cotton fiber, filtration is taken out, and after the filtration, the solid is dried to obtain a CNX loaded diatomite composite material. Heat treatment is conducted further. The CNX modified diatomite is used as an adsorbent to adsorb a Congo red dye.
Description
Technical field
The invention belongs to waste water adsorption technology field, more particularly to adsorbent, prepare and using its process Congo red waste water
Method.
Background technology
In recent years, dyestuff and heavy metal become the pith of environmental pollution.Dyestuff is a kind of important chemical products, it
Have a wide range of applications, but the discharge of waste water from dyestuff can cause huge pollution to environment.The dyestuff of low concentration also can be produced very
Dense color, to the healthy unfavorable of people.Further, since dyestuff reduces sunlight morning transmission in water, therefore, it can also shadow
The growth of Xiangshui County plant.Wherein, Congo red is a kind of typical organic dyestuff.
At present waste water mainly has three kinds of processing methods, respectively physical action, chemical decomposition method and biological decomposition method.Tool
Body method has absorption, extraction, ion exchange, electrodialysis, reverse osmosiss, Electrocatalytic Oxidation etc., and these methods can be successfully real
The industrialization of existing wastewater treatment, but operating process is all more complicated, it could even be possible to causing secondary pollution so that the place of waste water
Reason difficulty is increased.And absorption method is the ability for having selective absorption to certain component in liquid or gas using adsorbent so as to
On the sorbent, so as to realize that the purpose of the component is separated from mixture, the process operation is safe and simple, nothing two for temporary deposition
Secondary pollution.Wherein, activated carbon presents in the treatment of waste water good performance, but expensive.
To sum up, Handling Waste Water by Absorbing Way still has very big advantage in prior art, and during Handling Waste Water by Absorbing Way
Still end reaches preferable effect to the adsorbent for being used, and the research and development of the adsorbent of excellent performance remain the current technical field section
Grind the focus and difficult point of work.
The content of the invention
Present invention aims to the existing deficiency processed in Congo red waste water, there is provided a kind of efficiently to remove the Congo
The adsorbent of red waste water, preparation method and process CN using itXThe method of load diatomite composite material waste water.
The purpose of the present invention is achieved through the following technical solutions:
CNXThe preparation method of load diatomite composite material, concretely comprises the following steps:Tripolycyanamide, kieselguhr are added into reaction
It is placed in being dissolved in 60-90 DEG C of water-bath in device, dust technology, the matter of tripolycyanamide is added after tripolycyanamide is completely dissolved
Measure and be respectively 1-5g with the bulking value of diatomaceous quality and nitric acid:0.5-3g：10ml (preferred 1g：1g：10ml), above-mentioned preparation
Good solution, continues, in water-bath stirring, to stir 10-30min, then, takes out above-mentioned solution and is cooled down in atmosphere, treats shape
Into after solid flocculence, filtered.Solid is dried after filtration, you can obtain CNXLoad diatomite composite material.
Dust technology concentration is conventional, and generally mass fraction is 2-6%.
Further preferably, to CN obtained aboveXThe further heat treatment calcining of load diatomite composite material, heat treatment bar
Part is that under air conditionses, heat treatment temperature is 150-550 DEG C (preferred 150-250 DEG C), and the time 1-3 hour of heat treatment is excellent
Select 2 hours.
By such scheme, after described drying terminates, the flocculence sample from color or Lycoperdon polymorphum Vitt is obtained.CNXLoad kieselguhr
Composite, preferably its microscopic appearance are that fiber is bar-shaped, wherein, preferred CNXIt is 1-5 with diatomaceous mass ratio.
CNXFor carbon nitrogen organic material.
CNXLoad diatomite composite material is preferred for adsorbing congo red as the application of adsorbent.
One kind utilizes above-mentioned CNXThe method that load diatomite composite material processes congo red waste water, its concrete steps
For:By CNXLoad diatomite composite material is added in the waste water containing congo red, is mixed and is stirred, and makes CNXLoad silicon
Diatomaceous earth composite fully adsorbs Congo red, is then separated by filtration, and removing is adsorbed with the CN of Congo redXLoad composite diatomite material
Material.
By such scheme, the initial concentration of Congo red waste water solution is 2000mg/L, is added in every 50mL Congo red solution
Adsorbent amount be 0.1-0.5g；The concussion adsorption conditionses:30-50 DEG C of adsorption temp, concussion adsorption time is 1-5min,
PH value is 6-7.
Beneficial effects of the present invention:
Compared with prior art, it is an advantage of the current invention that:
(1) adsorbent that the present invention is provided has higher specific surface area and relatively low cost, and environmental friendliness, neutral
Or under solutions of weak acidity have good stability the features such as.
(2) CN that the present invention passes through the compound appropriate amount in kieselguhr matrixXFormed with for the bar-shaped CN of fiberXIt is negative
Diatomite composite material is carried, the performance of its Adsorption Congo red can be obviously improved, reach the purpose of efficient removal.The composite wood
Material 5min can reach adsorption equilibrium, and Congo red maximal absorptive capacity is up to 350mg/g.
(3) CN that the present invention is providedXLoad diatomite composite material adsorbent removes the method for waste water to be had without the need for special
Equipment, step is simple and efficient, will not introduce other harmful substances in processing procedure, and the rate of adsorption is fast, the features such as adsorption efficiency is high.
Description of the drawings
Fig. 1 loads the field emission scanning electron microscope photo of diatomite composite material for the CNX of different heat treatment Temperature Treatment.
Fig. 2 loads the XRD of diatomite composite material for the CNX of different heat treatment Temperature Treatment
Fig. 3 is the infrared spectrogram before and after the absorption Congo red for measuring.
The adsorption time of adsorbents of the Fig. 4 obtained by a temperature of different heat treatment in the process example of congo red waste water
With the graph of relation of C/C0.
The nonheat-treated CN of Fig. 5XThe Congo red of-diatomite adsorption variable concentrations.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.Following examples be merely to illustrate the present invention and without
In restriction the scope of the present invention；It should be pointed out that after the content for having read instruction of the present invention, those skilled in the art can
To make various changes or modifications to the present invention, these equivalent form of values equally fall within the model that the application appended claims are limited
Enclose.Nitric acid mass fraction in following examples is 6%.
Embodiment 1
Step one, in mass ratio 1:1 adds tripolycyanamide and kieselguhr in beaker (open systemss), is subsequently adding certain
The dust technology of amount, wherein kieselguhr are (1g with the mass volume ratio of nitric acid:10ml), 70 DEG C of beaker temperature, mixing speed are controlled
For 120rpm, after reaction 1h, filter, take filtrate, be placed in drying baker and be dried.
Step 2, the filtrate being dried to obtain is positioned in crucible, is placed in Muffle furnace and is calcined 2 hours, calcining heat
150 DEG C, that is, CN is obtainedXLoad diatomite composite material.
Step 3, takes CNXLoad diatomite composite material 0.1g is added in concentration 2000mg/L Congo red 20ml, room temperature
Ultrasonic disperse 2min, makes CNXLoad diatomite composite material is uniformly dispersed, and fully reacts with Congo red molecules.Reaction terminates
Afterwards, by the reacting liquid filtering for obtaining separate, the Congo red waste water after adsorb and adsorb Congo red after CNXLoad kieselguhr
Composite.
Implementation result：The CN that the present embodiment is preparedXLoad diatomite composite material, Congo red adsorbance is 321mg/
g。
Embodiment 2
Step one, in mass ratio 1:1.5 add kieselguhr and kieselguhr in beaker (open systemss), are subsequently adding certain
The nitric acid of amount, wherein kieselguhr are (1g with the mass volume ratio of nitric acid:10ml), 70 DEG C of beaker temperature is controlled, mixing speed is
120rpm, after reaction 1h, filters, and takes filtrate, is placed in drying baker and is dried.
Step 2, the filtrate being dried to obtain is positioned in crucible, is placed in Muffle furnace and is calcined 2 hours, calcining heat
150 DEG C, that is, CN is obtainedXLoad diatomite composite material.
Step 3, takes CNXLoad diatomite composite material 0.1g is added in concentration 2000mg/L Congo red 20ml, room temperature
Ultrasonic disperse 2min, makes CNXLoad diatomite composite material is uniformly dispersed, and fully reacts with Congo red molecules.Reaction terminates
Afterwards, by the reacting liquid filtering for obtaining separate, the Congo red waste water after adsorb and adsorb Congo red after CNXLoad kieselguhr
Composite.
Implementation result：The CN that the present embodiment is preparedXLoad diatomite composite material, Congo red adsorbance is 341mg/
g。
Embodiment 3
Step one, in mass ratio 1:2 add kieselguhr and kieselguhr in beaker (open systemss), are subsequently adding a certain amount of
Nitric acid, the wherein mass volume ratio of kieselguhr and nitric acid is (2g:10ml), 70 DEG C of beaker temperature is controlled, mixing speed is
120rpm, after reaction 1h, filters, and takes filtrate, is placed in drying baker and is dried.
Step 2, the filtrate being dried to obtain is positioned in crucible, is placed in Muffle furnace and is calcined 2 hours, calcining heat
250 DEG C, that is, CN is obtainedXLoad diatomite composite material.
Step 3, takes CNXLoad diatomite composite material 0.1g is added in concentration 2000mg/L Congo red 20ml, room temperature
Ultrasonic disperse 2min, makes CNXLoad diatomite composite material is uniformly dispersed, and fully reacts with Congo red molecules.Reaction terminates
Afterwards, by the reacting liquid filtering for obtaining separate, the Congo red waste water after adsorb and adsorb Congo red after CNXLoad kieselguhr
Composite.
Implementation result：The CN that the present embodiment is preparedXLoad diatomite composite material, Congo red adsorbance is 318mg/
g。
Claims (10)
1.CNXThe preparation method of load diatomite composite material, it is characterised in that concrete steps include as follows:By tripolycyanamide,
Kieselguhr adds and is placed in being dissolved in 60-90 DEG C of water-bath in reactor, and dilute nitre is added after tripolycyanamide is completely dissolved
The bulking value ratio of acid, the quality of tripolycyanamide and diatomaceous quality and dust technology is 1-5g:0.5-3g：10ml, it is above-mentioned to match somebody with somebody
The solution for making, continues, in water-bath stirring, to stir 10-30min, then, takes out above-mentioned solution and is cooled down in atmosphere, treats
After forming solid flocculence, filtered, solid is dried after filtration, you can obtain CNXLoad diatomite composite material.
2. according to the CN described in claim 1XThe preparation method of load diatomite composite material, it is characterised in that tripolycyanamide
The bulking value ratio of quality and diatomaceous quality and dust technology is 1g：1g：10ml.
3. according to the CN described in claim 1XThe preparation method of load diatomite composite material, it is characterised in that the CN for obtainingX
The further heat treatment calcining of load diatomite composite material, heat treatment condition is that under air conditionses, heat treatment temperature is 150-
550 DEG C, the time 1-3 hour of heat treatment.
4. the preparation method of diatomite composite material is loaded according to the CNX described in claim 3, it is characterised in that heat treatment temperature
Spend for 150-250 DEG C.
5. according to the CN described in claim 3XThe preparation method of load diatomite composite material, it is characterised in that heat treatment time
For 2 hours.
6. the CN for preparing according to the method described in any one of claim 1-5XLoad diatomite composite material.
7. the CN for preparing according to the method described in any one of claim 1-5XLoad diatomite composite material, its feature exists
In CNXIt is 1-5 with diatomaceous mass ratio：1.
8. the CN for preparing according to the method described in any one of claim 1-5XThe application of load diatomite composite material, its
It is characterised by, as adsorbent, for adsorbing congo red.
9. according to the application of claim 8, it is characterised in that by CNXLoad diatomite composite material is added to containing Congo red dye
In the waste water of material, mix and stir, make CNXLoad diatomite composite material fully adsorbs Congo red, is then separated by filtration, and removes
It is adsorbed with the CN of Congo redXLoad diatomite composite material.
10. according to the application of claim 9, it is characterised in that the initial concentration of Congo red waste water solution is 2000mg/L, often
The adsorbent amount added in 50mL Congo red solution is 0.1-0.5g；Carry out concussion absorption:30-50 DEG C of adsorption temp, concussion
Adsorption time is 1-5min, and pH value is 6-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011256.6A CN106669596B (en) | 2017-01-06 | 2017-01-06 | CNXPreparation of modified diatomite and method for adsorbing Congo red wastewater by using modified diatomite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011256.6A CN106669596B (en) | 2017-01-06 | 2017-01-06 | CNXPreparation of modified diatomite and method for adsorbing Congo red wastewater by using modified diatomite |
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| Publication Number | Publication Date |
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| CN109107523A (en) * | 2018-08-01 | 2019-01-01 | 中南林业科技大学 | Ultra-thin graphite-phase C3N4/ calcite nanosheet composite material and its preparation method and application |
| CN109499553A (en) * | 2018-12-21 | 2019-03-22 | 徐荣霞 | A kind of dyeing and printing sewage processing porous spheroidal adsorbent and preparation method thereof |
| CN110496593A (en) * | 2018-05-18 | 2019-11-26 | 南京理工大学 | Lamellar graphite phase carbon nitride/montmorillonite composite material and its preparation method and application |
| CN112756008A (en) * | 2021-01-13 | 2021-05-07 | 合肥工业大学 | Iron-doped carbon nitride diatomite composite material and preparation method and application thereof |
| CN113529491A (en) * | 2021-07-02 | 2021-10-22 | 武汉梓强生态科技有限公司 | Modified diatomite adsorption wallpaper and preparation method thereof |
| CN115318238A (en) * | 2022-08-11 | 2022-11-11 | 天津大学 | Adsorbent for adsorbing Congo red dye in water and preparation method and application thereof |
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| CN110496593A (en) * | 2018-05-18 | 2019-11-26 | 南京理工大学 | Lamellar graphite phase carbon nitride/montmorillonite composite material and its preparation method and application |
| CN109107523A (en) * | 2018-08-01 | 2019-01-01 | 中南林业科技大学 | Ultra-thin graphite-phase C3N4/ calcite nanosheet composite material and its preparation method and application |
| CN109107523B (en) * | 2018-08-01 | 2021-04-20 | 中南林业科技大学 | Ultra-thin graphite phase C3N4Calcite nanosheet composite material and preparation method and application thereof |
| CN109499553A (en) * | 2018-12-21 | 2019-03-22 | 徐荣霞 | A kind of dyeing and printing sewage processing porous spheroidal adsorbent and preparation method thereof |
| CN112756008A (en) * | 2021-01-13 | 2021-05-07 | 合肥工业大学 | Iron-doped carbon nitride diatomite composite material and preparation method and application thereof |
| CN113529491A (en) * | 2021-07-02 | 2021-10-22 | 武汉梓强生态科技有限公司 | Modified diatomite adsorption wallpaper and preparation method thereof |
| CN115318238A (en) * | 2022-08-11 | 2022-11-11 | 天津大学 | Adsorbent for adsorbing Congo red dye in water and preparation method and application thereof |
| CN115318238B (en) * | 2022-08-11 | 2024-01-30 | 天津大学 | Adsorbent for adsorbing Congo red dye in water and preparation method and application thereof |
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