CN108786889A - A kind of preparation method of the composite material of efficient absorption-photocatalytic degradation antibiotic - Google Patents
A kind of preparation method of the composite material of efficient absorption-photocatalytic degradation antibiotic Download PDFInfo
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- CN108786889A CN108786889A CN201810647240.9A CN201810647240A CN108786889A CN 108786889 A CN108786889 A CN 108786889A CN 201810647240 A CN201810647240 A CN 201810647240A CN 108786889 A CN108786889 A CN 108786889A
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- solution
- hap
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- composite materials
- absorption
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- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 230000003115 biocidal effect Effects 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000013033 photocatalytic degradation reaction Methods 0.000 title claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 8
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims abstract description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 7
- 229940059939 kayexalate Drugs 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000001110 calcium chloride Substances 0.000 claims abstract description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 4
- 229910000397 disodium phosphate Inorganic materials 0.000 claims abstract description 4
- 239000008367 deionised water Substances 0.000 claims abstract description 3
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002243 precursor Substances 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000004793 Polystyrene Substances 0.000 claims 1
- 229920002223 polystyrene Polymers 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000000356 contaminant Substances 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 2
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 2
- 239000004098 Tetracycline Substances 0.000 description 10
- 238000007146 photocatalysis Methods 0.000 description 10
- 229960002180 tetracycline Drugs 0.000 description 10
- 229930101283 tetracycline Natural products 0.000 description 10
- 235000019364 tetracycline Nutrition 0.000 description 10
- 150000003522 tetracyclines Chemical class 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001699 photocatalysis Effects 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 238000000634 powder X-ray diffraction Methods 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 229940088710 antibiotic agent Drugs 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 229910014497 Ca10(PO4)6(OH)2 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 231100000463 ecotoxicology Toxicity 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- BWYYYTVSBPRQCN-UHFFFAOYSA-M sodium;ethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=C BWYYYTVSBPRQCN-UHFFFAOYSA-M 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0259—Compounds of N, P, As, Sb, Bi
-
- 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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/048—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing phosphorus, e.g. phosphates, apatites, hydroxyapatites
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
-
- 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
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
Abstract
The present invention provides a kind of preparation methods of the composite material of efficient absorption-photocatalytic degradation antibiotic, by CaCl2Solution pours into kayexalate solution；Then by Na2CO3Solution is added dropwise in above-mentioned solution, is stirred at room temperature, and centrifugal drying obtains the CaCO of white powder3；Again by CaCO3And Na2HPO4It is dissolved in deionized water, the molar ratio of Ca elements and P element is 1.67；A certain amount of g-C is added3N4, PH to 11 is then adjusted, after being placed in 100 ~ 140 DEG C of 0.5 ~ 2h of autoclave hydro-thermal reaction, centrifugal drying finally obtains g-C3N4/ HAp composite materials.The g-C that the present invention is prepared3N4/ HAp composite materials, which have, makes full use of absorption with light-catalysed synergistic effect to improve the removal effect of environmental contaminants.
Description
Technical field
The invention belongs to materialogy fields, are related to a kind of composite material, specifically a kind of efficient absorption-photocatalysis drop
Solve the g-C of antibiotic3N4The preparation method of/HAp composite materials.
Background technology
In recent years, the whole world faces the severe challenge of energy shortage and environmental pollution.Solve the energy and environment of getting worse
Crisis be ensure the world is harmonious, stablize with sustainable development there is an urgent need to.Antibiotic is due to high-efficiency broad spectrum, oral work
Property, complete the advantages that handing over adopted resistance, be widely used in the disease for treating human and animal, in addition antibiotic also often by with
In the yield for improving animal husbandry and aquaculture.China has become the first in the world antibiotic usage big country according to statistics and production is big
State, the environmental pollution caused by abuse of antibiotics and its eco-toxicology effects have become the great environmental that China faces and ask at present
One of topic.Therefore it is most concerned in environmental improvement to develop simple, effective, economic, quickly removal antibiotic waste water method
Key problem.
At present physical processing techniques, chemical treatment method, biology are broadly divided into using extensive antibiotics wastewater treatment
The combined treatment etc. for the treatment of technology and a variety of methods.And for the strong persistence antibiotic of some stability, using traditional
Its removal effect of wastewater treatment method is not satisfactory.It is worth mentioning that photocatalysis technology has the spies such as efficient, environmental protection, cheap
Point, be it is a kind of not only economized on resources but also environmental-friendly " green " method, more and more obtained in terms of antibiotic waste water processing
The favor of people.
Hydroxyapatite (Ca10(PO4)6(OH)2, HAp) be human body and animal teeth and bone host inorganic composition portion
Point, it is a kind of biomaterial being widely studied, there is good and biocompatibility and organic matter adsorption capacity, thus inhaling
Attached application field and photocatalysis field have potential application prospect.
Graphite phase carbon nitride (g-C with unique texture3N4) because it is with excellent photocatalysis performance become novel light
One of research hotspot of catalysis material.g-C3N4Has very prominent advantage compared to other photochemical catalysts：Visible absorption
By force, thermostabilization and chemical stability are good, and environmental-friendly, abundance, cheap and preparation process are simple.Base at present
In g-C3N4There are many report of composite photo-catalyst, if by g-C3N4It is supported on hydroxyapatite and g-C is prepared3N4/ HAp is multiple
Condensation material can then make full use of absorption-photocatalysis synergistic effect to improve the removal effect of environmental contaminants.So far,
There is not yet the g-C for antibiotic waste water of degrading3N4The report of/HAp composite photo-catalyst patents of invention.
Invention content
For above-mentioned technical problem in the prior art, the present invention provides a kind of efficient absorption-photocatalytic degradation antibiosis
The preparation method of the composite material of element, the preparation side of the composite material of this efficient absorption-photocatalytic degradation antibiotic
Method will solve to remove the ineffective technical problem of the strong persistence antibiotic of stability in waste water in the prior art.
The present invention provides a kind of preparation methods of the composite material of efficient absorption-photocatalytic degradation antibiotic, including such as
Lower step：
1) one prepares precursor C aCO3The step of, by the CaCl of 0.1~0.3M2Solution pours into the polyphenyl of 8~12mg/mL
In vinyl sulfonic acid sodium solution, CaCl2The volume ratio of solution and kayexalate solution is 20~40: 300；Then by 0.1
~0.3M Na2CO3Solution is added dropwise in above-mentioned solution, Na2CO3The volume ratio of solution and kayexalate solution is 20
~40: 300,0.5~2h is stirred at room temperature, centrifugal drying obtains the CaCO of white powder3；
2) by precursor C aCO3And Na2HPO4It is dissolved in deionized water, the molar ratio of Ca elements and P element is 1.67；Add
Enter g-C3N4, the g-C3N4Quality be above-mentioned solution quality 5wt%~20wt%, then adjust PH to 11, be placed in 100
In~140 DEG C of autoclave, after reacting 0.5~2h, centrifugal drying finally obtains g-C3N4/ HAp composite materials.
G-C is prepared by hydro-thermal method in the present invention3N4/ HAp composite materials, the g-C3N4/ HAp composite materials have
It is standby to make full use of absorption with light-catalysed synergistic effect to improve the removal effect of environmental contaminants.
The present invention is compared with prior art, and technological progress is significant.Compared to other photochemical catalysts, g- of the invention
C3N4/ HAp composite materials have good adsorption effect to the waste water containing antibiotic, while having both highly effective photocatalysis
Degradation property.
Description of the drawings
Fig. 1 is g-C3N4Scanning electron microscope (SEM) photo.
Fig. 2 is g-C3N4X-ray powder diffraction (XRD) figure of/HAp composite materials.
Fig. 3 is g-C3N4Scanning electron microscope (SEM) figure of/HAp.
Fig. 4 is g-C3N4UV-Vis DRS collection of illustrative plates (UV-vis) figure of/HAp.
Fig. 5 is g-C3N4The N of/HAp2Adsorption isotherm.
Fig. 6 is g-C3N4Absorption-photocatalysis performance curves of/the HAp to tetracycline.
Specific implementation mode
The g-C that this invention is provided below by embodiment3N4/ HAp composite materials elaborate.
Embodiment 1
g-C3N4Preparation：The melamine for weighing certain mass is placed in the crucible of capping, is then placed in Muffle furnace and is risen to
500 DEG C, it is warming up to 520 DEG C again after keeping the temperature 2h, room temperature is down to after keeping the temperature 2h, it is spare after obtained product is ground.Then, it weighs
The powder of certain mass is laid in porcelain boat, is positioned in Muffle furnace and is risen to 520 DEG C, calcining 6h obtains g-C3N4。
Fig. 1 is 1 preparation-obtained g-C of the embodiment of the present invention3N4Scanning electron microscope (SEM) photo, it can be seen that system respectively obtains
G-C3N4Structure in the form of sheets.
Embodiment 2
g-C3N4The preparation of/HAp composite materials：30mL, 0.2M CaCl are prepared respectively2And Na2CO3Solution, by what is prepared
CaCl2Solution pours into 300mL, 10mg/mL kayexalate (PSS) solution, then by Na2CO3Solution is added dropwise
It states in solution, 1h is stirred at room temperature, the CaCO of white powder is obtained after centrifugal drying3, weigh 0.17g Na2HPO4, it is configured to
The Na of 0.1M2HPO4Solution weighs 0.2g CaCO3Na is added2HPO4In solution, the g-C of 15wt% is weighed3N4It is dissolved in above-mentioned molten
In liquid, the NaOH of 0.1M is then used to adjust PH to 11, is placed in 120 DEG C of reaction 1h of autoclave, g- is obtained after centrifugal drying
C3N4/ HAp composite materials.
Fig. 2 is 2 preparation-obtained g-C of the embodiment of the present invention3N4The X-ray powder diffraction (XRD) of/HAp composite materials is composed
Figure, it turned out that it is consistent with JCPDS#09-0423, show that products obtained therefrom purity is very high.
Fig. 3 is 2 preparation-obtained g-C of the embodiment of the present invention3N4Scanning electron microscope (SEM) photo of/HAp composite materials, can
To see part sheet g-C3N4It is carried on the surface of ball shaped hydroxy-apatite.
Fig. 4 is 2 preparation-obtained g-C of the embodiment of the present invention3N4The ultraviolet-visible diffuse reflectance spectrum of/HAp composite materials
(UV-Vis) figure shows synthesized g-C3N4/ HAp composite materials have superior Uv and visible light absorbent properties, can be used as
Photochemical catalyst uses.
Fig. 5 is 2 preparation-obtained g-C of the embodiment of the present invention3N4The N of/HAp composite materials2Adsorption isotherm, after tested
The BET specific surface area of gained sample is 54.2m2·g-1, more than the unsupported g-C being prepared under the same terms3N4Pure HAp
Specific surface area (44.2m2·g-1), higher BET specific surface area is conducive to improve absorption property and the photocatalysis of photochemical catalyst
Performance.
Embodiment 3
Absorption-photocatalysis performance experiment：Weigh the g-C of 0.1g3N4/ HAp composite materials are placed in the Fourth Ring of 100mL, 50mg/L
In plain solution, dark reaction 40min is to reach adsorption-desorption balance；Use the luxuriant and rich with fragrance Lay 300WXe xenon lamps of pool for light source, simulated solar irradiation
Irradiation, illumination at interval of 5min take the sample of 4mL to be centrifuged, supernatant are placed in cuvette, Shimadzu is utilized after starting
UV-2550 ultraviolet specrophotometers measure the absorption value of tetracycline, using C/C0Evaluate degradation rate, wherein C is that illumination is certain
The concentration of the tetracycline of sample, C after time0For the concentration of the initial tetracycline of sample.
Fig. 6 is 2 preparation-obtained g-C of the embodiment of the present invention3N4Absorption-photocatalysis of/HAp the composite materials to tetracycline
Performance curve, the experimental results showed that products obtained therefrom has the property of absorption and photocatalytic degradation tetracycline very quickly and efficiently
Can, 22% is reached to the tetracycline rate of adsorption that initial concentration is 50mg/L in 40min, the 10min that opens the light can be to tetracycline
Degradation rate reaches 78%, final total removal efficiency nearly 100%, to realize the absorption of tetracycline and photocatalytic degradation one
Change, greatly enhances photocatalytic degradation reaction rate and efficiency, can be used as high-efficiency adsorbent or photocatalyst applications in field of environment protection.
Beneficial effects of the present invention
Preparation method science, rationally easy, of low cost, repeated height of the present invention, the g-C of gained3N4/ HAp photochemical catalysts
There is absorption and Photocatalytic Degradation Property very quickly and efficiently to tetracycline, can be used as high-efficiency adsorbent or photochemical catalyst exists
Field of environment protection uses, and has potential application prospect.
Claims (1)
1. a kind of preparation method of the composite material of efficient absorption-photocatalytic degradation antibiotic, it is characterised in that including walking as follows
Suddenly：
1）One prepares precursor C aCO3The step of, by the CaCl of 0.1 ~ 0.3M2Solution pours into the polystyrene of 8 ~ 12 mg/mL
In sodium sulfonate solution, CaCl2The volume ratio of solution and kayexalate solution is 20 ~ 40：300；Then by 0.1 ~ 0.3M
Na2CO3Solution is added dropwise in above-mentioned solution, Na2CO3The volume ratio of solution and kayexalate solution is 20 ~ 40：
300,0.5 ~ 2h is stirred at room temperature, centrifugal drying obtains the CaCO of white powder3；
2）By precursor C aCO3And Na2HPO4It is dissolved in deionized water, the molar ratio of Ca elements and P element is 1.67；G- is added
C3N4, the g-C3N4Quality be above-mentioned solution quality the wt% of 5 wt% ~ 20, then adjust PH to 11, be placed in 100 ~ 140 DEG C
Autoclave in, react 0.5 ~ 2h after, centrifugal drying finally obtains g-C3N4/ HAp composite materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810647240.9A CN108786889A (en) | 2018-06-21 | 2018-06-21 | A kind of preparation method of the composite material of efficient absorption-photocatalytic degradation antibiotic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810647240.9A CN108786889A (en) | 2018-06-21 | 2018-06-21 | A kind of preparation method of the composite material of efficient absorption-photocatalytic degradation antibiotic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108786889A true CN108786889A (en) | 2018-11-13 |
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| CN109985645A (en) * | 2019-04-17 | 2019-07-09 | 上海电力学院 | A kind of hollow Porous HAP microballoon composite material of CdS/ and its preparation and application |
| CN111995789A (en) * | 2020-03-25 | 2020-11-27 | 武汉纺织大学 | Hydrophilic resin for catalytic degradation of antibiotics and preparation method and application thereof |
| CN112661229A (en) * | 2020-11-27 | 2021-04-16 | 商丘师范学院 | Has the function of heavy metal ion adsorptionAnd the visible light photocatalytic performance of HA/g-C3N4Method for preparing composite material |
| CN113559915A (en) * | 2021-09-27 | 2021-10-29 | 渤海水产股份有限公司 | Silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985645A (en) * | 2019-04-17 | 2019-07-09 | 上海电力学院 | A kind of hollow Porous HAP microballoon composite material of CdS/ and its preparation and application |
| CN111995789A (en) * | 2020-03-25 | 2020-11-27 | 武汉纺织大学 | Hydrophilic resin for catalytic degradation of antibiotics and preparation method and application thereof |
| CN111995789B (en) * | 2020-03-25 | 2022-09-27 | 武汉纺织大学 | Hydrophilic resin for catalytic degradation of antibiotics and preparation method and application thereof |
| CN112661229A (en) * | 2020-11-27 | 2021-04-16 | 商丘师范学院 | Has the function of heavy metal ion adsorptionAnd the visible light photocatalytic performance of HA/g-C3N4Method for preparing composite material |
| CN113559915A (en) * | 2021-09-27 | 2021-10-29 | 渤海水产股份有限公司 | Silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst and preparation method and application thereof |
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