CN106345510A - Preparation method and application of surface modified nano-scale graphite phase carbon nitride photocatalyst - Google Patents
Preparation method and application of surface modified nano-scale graphite phase carbon nitride photocatalyst Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 60
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 57
- 239000010439 graphite Substances 0.000 title claims abstract description 57
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002243 precursor Substances 0.000 claims abstract description 34
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000001699 photocatalysis Effects 0.000 claims abstract description 19
- 239000005711 Benzoic acid Substances 0.000 claims abstract description 14
- 235000010233 benzoic acid Nutrition 0.000 claims abstract description 14
- 230000015556 catabolic process Effects 0.000 claims abstract description 14
- 238000006731 degradation reaction Methods 0.000 claims abstract description 14
- 238000007146 photocatalysis Methods 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000012986 modification Methods 0.000 claims description 33
- 230000004048 modification Effects 0.000 claims description 33
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000356 contaminant Substances 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 9
- 239000003054 catalyst Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 2
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 20
- 229940012189 methyl orange Drugs 0.000 description 20
- 239000006228 supernatant Substances 0.000 description 9
- 238000005119 centrifugation Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007833 carbon precursor Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XRHGYUZYPHTUJZ-UHFFFAOYSA-N 4-chlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C=C1 XRHGYUZYPHTUJZ-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
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- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000006053 organic reaction Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000002371 ultraviolet--visible spectrum 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
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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
- 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
- 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
-
- 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
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- 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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/08—Nanoparticles or nanotubes
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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Abstract
The invention discloses a preparation method of a surface modified nano-scale graphite phase carbon nitride photocatalyst, and belongs to the technical field of material preparation and photocatalysis. The preparation method comprises the following steps: dispersing a graphite phase carbon nitride precursor into ethanol, and adding a certain proportion of benzoic acid or 4-methyl benzoic acid; performing heating reflux on the mixture for more than 2 hours under the condition of stirring; and cooling the mixture to a room temperature, then washing an obtained solid by using ethanol for a plurality of times, and performing drying to obtain a surface modified graphite phase carbon nitride photocatalyst. The preparation method disclosed by the invention has low raw material cost and quick and simple steps, and the obtained catalyst is excellent in photocatalytic performance and can be widely applied to the fields of photocatalysis degradation of organic matters, and the like.
Description
Technical field
The invention belongs to material preparation and photocatalysis technology field are and in particular to a kind of nanoscale graphite phase of surface modification
Carbon nitride photocatalyst.
Background technology
Progress with human society and the development of global industry, problem of environmental pollution is increasingly serious, and photocatalysis technology is made
There is one of green technology of using value most for environment purification, receive extensive concern.
Graphite phase carbon nitride is a kind of new organic polymer semiconductor photocatalysis, have good stability, nontoxic, be easy to get and
Have the advantages that visible light-responded.Carbon nitride photocatalyst material is in photocatalysis Decomposition Aquatic product hydrogen, catalysis organic reaction and degraded
The fields such as organic pollution have good application.But it remains very important defect: photo-generated carrier is easily compound,
Lead to photocatalysis efficiency relatively low.Currently reported as surface modification carried out to carbonitride using 4- nitrobenzoic acid, thus pressing down
Make its photo-generate electron-hole to being combined, improve its photocatalytic activity (j.mater.chem.a, 2013,1,5142).But it makes
With n, n- dimethyl acetylamide is solvent, and poisonous and reaction temperature is high, the time is long.Preparation method of the present invention is quickly simple
Single, with low cost, do not use any toxic solvent, obtained catalyst good dispersion, photocatalytic activity in water is high.
Content of the invention
It is an object of the invention to provide a kind of preparation side of the nanoscale graphite phase carbon nitride photocatalyst of surface modification
Method and purposes, the preparation method of the present invention quickly and easily, raw material be easy to get, with low cost, obtained catalyst disperses in water
Property is good, photocatalytic activity is high.
For achieving the above object, the present invention adopts the following technical scheme that, a kind of nanoscale graphite phase nitridation of surface modification
The preparation method of carbon light catalyst, comprises the following steps:
(1) by graphite phase carbon nitride precursor ultrasonic disperse in ethanol, obtain carbonitride dispersion liquid；
(2) benzoic acid or 4- ar-Toluic acid are added in step (1) gained dispersion liquid, stir；Benzoic acid or 4-
Ar-Toluic acid is 0.2～0.4:1 with the mass ratio of carbonitride.
(3) natural cooling after step (2) gained mixed dispersion liquid being heated to reflux 2～4h under conditions of stirring, by institute
Obtain product ethanol cyclic washing post-drying.In the present invention, benzoic acid or 4- ar-Toluic acid firm attachment are made by back flow reaction
In nitridation carbon surface；With ethanol cyclic washing to remove free benzoic acid in catalyst or 4- ar-Toluic acid.
Preferably, in above-mentioned steps (1), the mass concentration of graphite phase carbon nitride precursor is 0.5～2.5%.
Preferably, in above-mentioned steps (1), the ultrasonic disperse time is more than 15min.
Preferably, benzoic acid described in above-mentioned steps (2) or 4- ar-Toluic acid and graphite phase carbon nitride precursor mass ratio
For 0.2～0.4:1.
Preferably, the return time in above-mentioned steps (3) is 2～4h.
According to another aspect of the present invention, the graphite phase carbon nitride photocatalyst of above-mentioned preparation method gained surface modification
Can be applicable to photocatalysis degradation organic contaminant.
In the modifying process of research graphite phase carbon nitride precursor, take the 4- chlorine close with 4- nitrobenzoic acid electronegativity
Benzoic acid is modified to graphite phase carbon nitride precursor, finds that the performance of its degraded methyl orange is less than carbonitride precursor on the contrary,
Degradation rate in 1h is about 0.9 times of precursor；Take the low 4- p t butylbenzoic acid of electronegativity as modifying agent, gained is tied
, compared with graphite phase carbon nitride precursor, the performance finding its degraded methyl orange is also below carbonitride precursor, the degraded in 1h for fruit
Speed is about 0.6 times of precursor.
By high flux screening modifying agent, the present invention show that benzoic acid or 4- ar-Toluic acid are modifying agent, and prepare
The graphite phase carbon nitride photocatalyst of surface modification serve unexpected technology for photocatalysis degradation organic contaminant
Effect.
The graphite phase carbon nitride photocatalyst remarkable advantage of the surface modification of the present invention is:
(1) preparation method of the present invention quickly and easily, raw material be easy to get, with low cost.
(2) the graphite phase carbon nitride photocatalyst of the surface modification of present invention preparation does not contain metal, have environmental protection, stable,
The advantages of light weight.
(3) catalyst of present invention preparation good dispersion, photocatalytic activity in water is high.
(4) catalyst of present invention preparation can easily be separated in photocatalytic system and be reused, and have
Very high practical value and be widely applied prospect.
Brief description
Fig. 1 is the transmission electron microscope figure of the graphite phase carbon nitride of gained surface modification in the embodiment of the present invention 1.
Fig. 2 is the X-ray diffraction pattern of the graphite phase carbon nitride of gained surface modification in the embodiment of the present invention 1.
Fig. 3 is the Fourier transform infrared spectroscopy figure of the graphite phase carbon nitride of gained surface modification in the embodiment of the present invention 1.
Fig. 4 is the Performance comparision figure of photo-catalytic degradation of methyl-orange, and a is the stone of gained surface modification in the embodiment of the present invention 1
The catalytic performance curve of black phase carbon nitride, b are that the catalytic performance of the graphite phase carbon nitride of gained surface modification in embodiment 4 is bent
The catalytic performance curve of line, c non-graphite phase carbon nitride precursor.
Specific embodiment
For making the object, technical solutions and advantages of the present invention of greater clarity, with reference to specific embodiment, to this
Invention further describes.It should be understood that these descriptions are simply exemplary, and it is not intended to limit the scope of the present invention.
Embodiment 1
In 100ml round-bottomed flask, add 1.0g graphite phase carbon nitride precursor, 50ml ethanol, after ultrasonic 30min, add
0.25g benzoic acid, is stirred at reflux 4h, is cooled to room temperature, centrifugation, the supernatant of inclining, by gained solid washing with alcohol 4-5 time,
After in the air is dried, it is placed in 60 DEG C of baking ovens and dries, obtain the graphite phase carbon nitride photocatalyst of surface modification.
The graphite phase carbon nitride of obtained surface modification is used for the photocatalytic degradation experiment of organic dyestuff methyl orange, tool
Body process is as follows: the photocatalyst of 100mg is scattered in the methyl orange solution of 100ml10ppm, stirs 2h, make under dark condition
It opens xenon source after reaching adsorption equilibrium, takes 4ml mixed dispersion liquid every 30min, every 1h after 2h in reaction system
Take a sample.The sample of taking-up is centrifuged, ultraviolet-visible spectrum test is carried out to the supernatant, by record
Absorbance obtains the degradation curve figure to methyl orange under simulated solar light irradiation for this catalyst, and result is as shown in Figure 4:
Curve a is the degradation curve of the photocatalyst of preparation in this example, and curve c is the degradation curve of precursor carbonitride；
As seen from Figure 4, the graphite phase carbon nitride photo-catalytic degradation of methyl-orange performance of benzoic acid surface modification is apparently higher than carbonitride
Precursor: in 1h, the former degrades about 60% methyl orange, and the latter only degrades 30%, and modified degradation rate is promoted to
2 times of precursor.
Embodiment 2
In 100ml round-bottomed flask, add 0.5g graphite phase carbon nitride precursor, 40ml ethanol, after ultrasonic 30min, add
0.12g benzoic acid, is stirred at reflux 3h, is cooled to room temperature, centrifugation, the supernatant of inclining, by gained solid washing with alcohol 4-5 time,
After in the air is dried, it is placed in 60 DEG C of baking ovens and dries, obtain the graphite phase carbon nitride of surface modification.
Embodiment 3
In 100ml round-bottomed flask, add 0.2g graphite phase carbon nitride precursor, 40ml ethanol, after ultrasonic 30min, add
0.08g benzoic acid, is stirred at reflux 3h, is cooled to room temperature, centrifugation, the supernatant of inclining, by gained solid washing with alcohol 4-5 time,
After in the air is dried, it is placed in 60 DEG C of baking ovens and dries, obtain the graphite phase carbon nitride of surface modification.
Embodiment 4
In 100ml round-bottomed flask, add 1.0g graphite phase carbon nitride precursor, 50ml ethanol, after ultrasonic 30min, add
0.30g 4- ar-Toluic acid, is stirred at reflux 4h, is cooled to room temperature, centrifugation, and the supernatant of inclining, by gained solid washing with alcohol
4-5 time, after in the air is dried, it is placed in 60 DEG C of baking ovens and dries, obtain the graphite phase carbon nitride of surface modification.
The graphite phase carbon nitride photocatalyst of obtained surface modification is dispersed in methyl orange aqueous solution, in simulation too
Under sunlight irradiates, carry out methyl orange photocatalysis performance test of degrading；And with ultraviolet-visible spectrophotometer, methyl orange concentration is entered
Row quantitative analyses, compared with graphite phase carbon nitride precursor, result is as shown in Figure 4 for acquired results:
Curve b is the degradation curve of the photocatalyst of preparation in this example, and curve c is the degradation curve of precursor carbonitride；
As seen from Figure 4, the graphite phase carbon nitride photo-catalytic degradation of methyl-orange performance of 4- ar-Toluic acid surface modification apparently higher than
Carbonitride precursor: in 1h, the former degrades about 70% methyl orange, and the latter only degrades 30%, modified degradation rate
About it is promoted to 2 times of precursor.
Embodiment 5
In 100ml round-bottomed flask, add 0.5g graphite phase carbon nitride precursor, 40ml ethanol, after ultrasonic 30min, add
0.12g 4- ar-Toluic acid, is stirred at reflux 3h, is cooled to room temperature, centrifugation, and the supernatant of inclining, by gained solid washing with alcohol
4-5 time, after in the air is dried, it is placed in 60 DEG C of baking ovens and dries, obtain the graphite phase carbon nitride of surface modification.
Embodiment 6
In 100ml round-bottomed flask, add 0.2g graphite phase carbon nitride precursor, 40ml ethanol, after ultrasonic 30min, add
0.08g 4- ar-Toluic acid, is stirred at reflux 3h, is cooled to room temperature, centrifugation, and the supernatant of inclining, by gained solid washing with alcohol
4-5 time, after in the air is dried, it is placed in 60 DEG C of baking ovens and dries, obtain the graphite phase carbon nitride of surface modification.
Embodiment 7
In 100ml round-bottomed flask, add 1.0g graphite phase carbon nitride precursor, 50ml ethanol, after ultrasonic 30min, add
0.30g 4- chlorobenzoic acid, is stirred at reflux 4h, is cooled to room temperature, centrifugation, and the supernatant of inclining, by gained solid washing with alcohol 4-
5 times, after in the air is dried, it is placed in 60 DEG C of baking ovens and dries, obtain the graphite phase carbon nitride of surface modification.
The graphite phase carbon nitride photocatalyst of obtained surface modification is dispersed in methyl orange aqueous solution, in simulation too
Under sunlight irradiates, carry out methyl orange photocatalysis performance test of degrading；And with ultraviolet-visible spectrophotometer, methyl orange concentration is entered
Row quantitative analyses, acquired results, compared with graphite phase carbon nitride precursor, find that the performance of its degraded methyl orange is less than nitridation on the contrary
Carbon precursor, the degradation rate in 1h is about 0.9 times of precursor.
Embodiment 8
In 100ml round-bottomed flask, add 1.0g graphite phase carbon nitride precursor, 50ml ethanol, after ultrasonic 30min, add
0.30g 4- p t butylbenzoic acid, is stirred at reflux 4h, is cooled to room temperature, centrifugation, and gained solid ethanol is washed by the supernatant of inclining
Wash 4-5 time, after in the air is dried, be placed in 60 DEG C of baking ovens and dry, obtain the graphite phase carbon nitride of surface modification.
The graphite phase carbon nitride photocatalyst of obtained surface modification is dispersed in methyl orange aqueous solution, in simulation too
Under sunlight irradiates, carry out methyl orange photocatalysis performance test of degrading；And with ultraviolet-visible spectrophotometer, methyl orange concentration is entered
Row quantitative analyses, acquired results, compared with graphite phase carbon nitride precursor, find that the performance of its degraded methyl orange is less than nitridation on the contrary
Carbon precursor, the degradation rate in 1h is about 0.6 times of precursor.
Although embodiments of the present invention are described in detail it should be understood that, without departing from the present invention's
In the case of spirit and scope, embodiments of the present invention can be made with various changes, replacement and change.
Claims (6)
1. a kind of nanoscale graphite phase carbon nitride photocatalyst of surface modification preparation method it is characterised in that: include following
Step；
1) by graphite phase carbon nitride precursor ultrasonic disperse in ethanol, obtain carbonitride dispersion liquid；
2) a certain proportion of benzoic acid or 4- ar-Toluic acid are added to step 1) in gained dispersion liquid, stir；
3) by step 2) gained mixed dispersion liquid stirring under conditions of be heated to reflux after natural cooling；By products therefrom ethanol
Cyclic washing post-drying.
2. the preparation method of the nanoscale graphite phase carbon nitride photocatalyst of a kind of surface modification according to claim 1,
It is characterized in that: step 1) in graphite phase carbon nitride precursor mass concentration be 0.5～2.5%.
3. the preparation method of the nanoscale graphite phase carbon nitride photocatalyst of a kind of surface modification according to claim 1,
It is characterized in that: step 1) in the ultrasonic disperse time be more than 15min.
4. the preparation method of the nanoscale graphite phase carbon nitride photocatalyst of a kind of surface modification according to claim 1,
It is characterized in that: step 2) described in benzoic acid or 4- ar-Toluic acid and graphite phase carbon nitride precursor mass than for 0.2～
0.4:1.
5. the preparation method of the nanoscale graphite phase carbon nitride photocatalyst of a kind of surface modification according to claim 1,
It is characterized in that: step 3) in return time be 2～4h.
6. the purposes of the nanoscale graphite phase carbon nitride photocatalyst of a kind of surface modification described in a kind of claim 1, it is special
Levy and be: for photocatalysis degradation organic contaminant.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008496A (en) * | 2017-05-11 | 2017-08-04 | 张家港市东大工业技术研究院 | A kind of preparation method of lipophile modified graphite phase carbon nitride |
| CN115960655A (en) * | 2022-12-23 | 2023-04-14 | 北方民族大学 | Lubricating oil additive for mechanical system and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5110679A (en) * | 1990-04-24 | 1992-05-05 | The Regents Of The University Of California | Hard carbon nitride and method for preparing same |
| CN105289684A (en) * | 2015-09-29 | 2016-02-03 | 北京化工大学 | Method for preparing porous flake-like graphite phase carbon nitride on large scale, and application thereof |
-
2016
- 2016-11-07 CN CN201610974875.0A patent/CN106345510B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5110679A (en) * | 1990-04-24 | 1992-05-05 | The Regents Of The University Of California | Hard carbon nitride and method for preparing same |
| CN105289684A (en) * | 2015-09-29 | 2016-02-03 | 北京化工大学 | Method for preparing porous flake-like graphite phase carbon nitride on large scale, and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| J.CAI等: "The acid-base properties of nitrogen-containing mesoporous carbon materials", 《MICROPOROUS AND MESOPOROUS MATERIALS》 * |
| YONG GUO等: "Developing a polymeric semiconductor photocatalyst with visible light response", 《CHEM.COMMUN》 * |
| 曹鑫等: "染料敏化的石墨相氮化碳的合成", 《江苏理工学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008496A (en) * | 2017-05-11 | 2017-08-04 | 张家港市东大工业技术研究院 | A kind of preparation method of lipophile modified graphite phase carbon nitride |
| CN107008496B (en) * | 2017-05-11 | 2019-05-17 | 张家港市东大工业技术研究院 | A kind of preparation method of lipophilicity modified graphite phase carbon nitride |
| CN115960655A (en) * | 2022-12-23 | 2023-04-14 | 北方民族大学 | Lubricating oil additive for mechanical system and preparation method and application thereof |
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