CN107185579A - A kind of rich carbon g C3N4Nanometer sheet and preparation method thereof - Google Patents
A kind of rich carbon g C3N4Nanometer sheet and preparation method thereof Download PDFInfo
- Publication number
- CN107185579A CN107185579A CN201710422779.XA CN201710422779A CN107185579A CN 107185579 A CN107185579 A CN 107185579A CN 201710422779 A CN201710422779 A CN 201710422779A CN 107185579 A CN107185579 A CN 107185579A
- Authority
- CN
- China
- Prior art keywords
- nanometer sheet
- carbon
- preparation
- rich carbon
- nanometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 18
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims abstract description 8
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical group C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- BNWPUUZJGBXAFM-UHFFFAOYSA-N azane oxalonitrile Chemical compound N.N#CC#N BNWPUUZJGBXAFM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims 1
- -1 melamine Compound Chemical class 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 239000001257 hydrogen Substances 0.000 abstract description 14
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 14
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 abstract description 11
- 238000006303 photolysis reaction Methods 0.000 abstract description 4
- 230000015843 photosynthesis, light reaction Effects 0.000 abstract description 4
- 238000007796 conventional method Methods 0.000 abstract 1
- 230000001699 photocatalysis Effects 0.000 description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 15
- 230000003287 optical effect Effects 0.000 description 9
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 238000005829 trimerization reaction Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 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
-
- B01J35/39—
-
- B01J35/40—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/042—Decomposition of water
-
- 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
-
- 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
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/36—Organic compounds containing halogen
-
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention discloses a kind of rich carbon g C3N4Nanometer sheet and preparation method thereof, described rich carbon g C3N4Nanometer sheet is the nanometer chip architecture of high degree of dispersion, and its C/N ratio is between 0.82 0.96；Can generate the compound containing triazine ring structure by polymerization as raw material during preparation, using the ethanol water of various concentrations as carbon source, secondary thermal oxide obtains rich carbon g C3N4Nanometer sheet.The ultra-thin rich carbon g C of the present invention3N4Nanometer sheet is compared with g C prepared by conventional method3N4, with higher carbon-nitrogen ratio, high specific surface area and wide light abstraction width, with stronger photolysis water hydrogen efficiency.
Description
Technical field
The present invention relates to nano material, light hydrogen production by water decomposition technical field, and in particular to a kind of rich carbon g-C3N4Nanometer sheet and
Its preparation method.
Background technology
Carbonitride is many not enough due to that can make up in carbon material, therefore is considered as that a kind of can replace the new of carbon material
Material.And in the structure of different carbonitrides, graphite phase carbon nitride (g-C3N4) it is considered as a kind of most stable of structure.And because
Extensively, preparation method is simple for raw material sources, chemical property stabilization and excellent semiconductor property, in photocatalytic degradation pollution
Have broad application prospects in terms of thing, photocatalysis anthropogenics and photocatalytic hydrogen production by water decomposition.
g-C3N4The energy gap of nano-photocatalyst be about 2.7eV, wherein conduction band and valence band respectively be located at -1.42eV and+
1.28eV, there is very big potentiality in terms of Solar use.But how to improve g-C3N4To being still in terms of the utilization rate of visible ray
The focus of many focus of attention.The g-C that traditional thermal polycondensation method is prepared3N4, agglomeration is serious, and in catalytic degradation
During organic pollution and photolysis water hydrogen gas, the recombination probability in light induced electron and hole is high, significantly reduces photocatalytic water
Efficiency.
By the method for doping, extraneous element person or ion are incorporated into g-C3N4Structure in, so as to change g-C3N4's
Band structure, improves the separative efficiency in light induced electron and hole, so as to improve g-C3N4Photocatalytic activity.It is main at present to use
Metallic element or nonmetal doping are to g-C3N4It is modified.G-C after doping3N4Higher photocatalysis is shown to live
Property.But prepare g-C by introducing foreign atom or ion3N4Photochemical catalyst, one side experimental implementation is more complicated, process
On the other hand relatively complicated, foreign atom or ion are incorporated into g-C3N4Success rate is relatively low, and can destroy g-C3N4Itself
Structure.Therefore how by simple effective method, being made has rich carbon g-C3N4Nanometer sheet is still in the emphasis studied at present
Hold.
The content of the invention
For problem above, it is an object of the invention to：A kind of rich carbon g-C is provided3N4Nanometer sheet and preparation method thereof.
To achieve these goals, the present invention provides following technical scheme：
A kind of rich carbon g-C3N4Nanometer sheet, it is characterised in that：For the nanometer chip architecture of high degree of dispersion, its C/N ratio is in 0.82-
Between 0.96.
Preferably, a kind of rich carbon g-C3N4The preparation method of nanometer sheet, so that triazine ring structure can be contained by polymerization generation
Compound be raw material, using the ethanol water of various concentrations as carbon source, secondary thermal oxide obtains rich carbon g-C3N4Nanometer
Piece.
Preferably, described rich carbon g-C3N4The preparation method of nanometer sheet, is comprised the following steps that：
(1) thermal oxide：So that the compound containing triazine ring structure can be generated by polymerization as raw material, raw material is put
Among boat is burnt, the dinectly bruning in Muffle furnace cools to room temperature with the furnace, obtains g-C3N4Coarse powder；
(2) secondary thermal oxide：With the g-C obtained in step (1)3N4Coarse powder is raw material, and raw material is placed in burning boat, will
Burn boat to be placed in airtight tube type stove, using inert gas as current-carrying gas, after the ethanol water that inert gas is passed through into various concentrations
The processing that different temperatures is carried out in tube furnace is passed through, the g-C of rich carbon is obtained3N4Nanometer sheet.
Preferably, the raw materials of compound of triazine ring structure is generated for urea by polymerization in step (1), cyanogen ammonia is double
One or more mixtures in cyanogen ammonia, melamine.
Preferably, calcining heat is 500-550 DEG C in step (1), and the time is 3-6h.
Preferably, the calcining heat in step (2) is 400-600 DEG C, and the time is 2-6h.
Preferably, the concentration range of the ethanol water of various concentrations is 1-10% in step (2).
Preferably, the inert gas in step (2) is argon gas or nitrogen.
Compared with existing technique, a kind of rich carbon g-C of the invention3N4Nanometer sheet and preparation method thereof, its superiority embodies
：
1st, the rich carbon g-C of synthesis prepared by the present invention3N4Nanometer sheet experimental implementation is simple, and the clear of liquid phase method process is not related to
The process such as wash, separate, drying, yield is high, and monodispersity is good.Obtained g-C3N4Nanometer sheet specific surface area is larger, and chemical property is steady
Fixed, photocatalysis efficiency is high；
2nd, the present invention is doped compared to universal introducing foreign atom or ion, using ethanol as carbon source, C auto-dopes
G-C3N4More sunshines, the rich carbon g-C of acquisition can be absorbed3N4Nanometer sheet has lower light induced electron and hole
Recombination probability, the yield of photolysis water hydrogen is higher.
Brief description of the drawings
Fig. 1 is g-C3N4The transmission electron micrograph of coarse powder；
Fig. 2 is concentration of alcohol when being 10%, rich carbon g-C3N4The transmission electron micrograph of nanometer sheet；
Fig. 3 is g-C3N4Coarse powder and rich carbon g-C3N4The hydrogen manufacturing yield comparison figure of nanometer sheet.
Embodiment
The invention will be further described with reference to embodiments, it is necessary to which explanation, is only to present inventive concept institute
The citing done and explanation, affiliated those skilled in the art described specific embodiment is made it is various modification or
Supplement is substituted using similar mode, design without departing from invention or surmounts model defined in the claims
Enclose, be regarded as falling into protection scope of the present invention.
Embodiment 1
A kind of rich carbon g-C3N4Nanometer sheet and preparation method thereof, is comprised the following steps that：
(1) thermal oxide：Using melamine as raw material, raw material is placed in burning boat, boat then will be burnt and is placed in Muffle furnace
In, 550 DEG C of insulation 4h, obtain g-C in atmosphere3N4Coarse powder；
(2) secondary thermal oxide：With the g-C in step (1)3N4Coarse powder is raw material, and raw material is placed among burning boat, is put into close
In the tube furnace closed, using nitrogen as current-carrying gas, by nitrogen by concentration for 5% ethanol solution in be passed through closed tube furnace again
In, 2h is then incubated at 500 DEG C, the g-C of rich carbon is obtained3N4Nanometer sheet.
Rich carbon g-C prepared by the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.90, and obtains ultra-thin g-C3N4Nanometer sheet,
It is identical with very high photocatalytic activity, it is seen that the degradable of 40mg/L rhodamine Bs can be realized under optical condition in 25min
Under the conditions of, original g-C3N4Degradation rate be only 20%.At the same time, this rich carbon g-C3N4Nanometer sheet photolysis water hydrogen gas
Efficiency is 1688.15 μm of olg-1·h-1, and under the same terms, original g-C3N4Hydrogen production efficiency be only 184.96 μm of olg-1·h-1。
Embodiment 2
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that the trimerization in step (1)
Cyanamide is revised as thiocarbamide.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.88, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/L rhodamine Bs are degradable under optical condition in 25min, photocatalytic water system
The efficiency of hydrogen is 1576.43 μm of olg-1·h-1。
Embodiment 3
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that the trimerization in step (1)
Cyanamide is changed to cyanogen ammonia.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.92, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/mL rhodamine Bs are degradable under optical condition in 25min, photocatalytic water system
Hydrogen efficiency is 1584.43 μm of olg-1·h-1。
Embodiment 4
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that secondary in step (2)
Oxidate temperature is 450 DEG C.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.83, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/mL rhodamine Bs are degradable under optical condition in 30min, photocatalytic water system
Hydrogen efficiency is 1254.38 μm of olg-1·h-1。
Embodiment 5
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that secondary in step (2)
Oxidate temperature is 600 DEG C.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.89, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/mL rhodamine Bs are degradable under optical condition in 20min, photocatalytic water system
Hydrogen efficiency is 1589.65 μm of olg-1·h-1。
Embodiment 6
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that the ethanol in step (2)
Concentration is 1%.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.91, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/mL rhodamine Bs are degradable under optical condition in 25min, photocatalytic water system
Hydrogen efficiency is 1515.40 μm of olg-1·h-1。
Embodiment 7
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that the ethanol in step (2)
Concentration is 10%.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.96, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/mL rhodamine Bs are degradable under optical condition in 30min, photocatalytic water system
Hydrogen efficiency is 1687.53 μm of olg-1·h-1。
Embodiment 8
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that the insulation in step (2)
Time is 1h.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.85, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/mL rhodamine Bs are degradable under optical condition in 30min, photocatalytic water system
Hydrogen efficiency is 1428.96 μm of olg-1·h-1。
Embodiment 9
Rich carbon g-C in the present embodiment3N4The preparation method be the same as Example 1 of nanometer sheet, the difference is that the insulation in step (2)
Time is 4h.
Rich carbon g-C manufactured in the present embodiment3N4Nanometer sheet carbon-nitrogen ratio is 0.82, and pattern is the g-C of sheet3N4Nanometer sheet, tool
There is higher photocatalytic activity, it is seen that can realize that 40mg/mL rhodamine Bs are degradable under optical condition in 30min, photocatalytic water system
Hydrogen efficiency is 1735.28 μm of olg-1·h-1。
Embodiment 10
Calculate original g-C3N4And the rich carbon g-C that embodiment 6 and embodiment 7 are prepared3N4C/N ratio in nanometer sheet
For example shown in table 1 below：
Table 1 calculates obtained original g-C3N4With rich carbon g-C3N4The C/N of nanometer sheet ratio contrast table
| Project | C (%) | N (%) | C/N |
| Bulkg-C3N4 | 41.96 | 55.78 | 0.75 |
| g-C3N4(1%C2H5OH) | 46.29 | 50.94 | 0.91 |
| g-C3N4(10%C2H5OH) | 47.68 | 49.91 | 0.96 |
As can be seen from Table 1：With the addition of ethanol, g-C3N4The carbon-nitrogen ratio of nanometer sheet is significantly improved, and works as second
When the concentration of alcohol solution is 1%, the rich carbon g-C that its secondary thermal oxide is obtained3N4The C/N values of nanometer sheet are 0.91, with original g-
C3N4Compared to improving 0.16, with the rise of concentration of alcohol, the g-C that secondary thermal oxide is obtained3N4The ratio of C/N in nanometer sheet
Example is also with improve, and when the concentration of ethanol water is 10%, its C/N increases to 0.96.
Claims (8)
1. a kind of rich carbon g-C3N4Nanometer sheet, it is characterised in that：For the nanometer chip architecture of high degree of dispersion, its C/N ratio is in 0.82-
Between 0.96.
2. a kind of rich carbon g-C3N4The preparation method of nanometer sheet, it is characterised in that：So that knot containing triazine ring can be generated by polymerization
The compound of structure is raw material, and using the ethanol water of various concentrations as carbon source, secondary thermal oxide obtains rich carbon g-C3N4Nanometer
Piece.
3. richness carbon g-C as claimed in claim 23N4The preparation method of nanometer sheet, it is characterised in that：Comprise the following steps that：
(1) thermal oxide：So that the compound containing triazine ring structure can be generated by polymerization as raw material, raw material is placed in burning
Among boat, the dinectly bruning in Muffle furnace cools to room temperature with the furnace, obtains g-C3N4Coarse powder；
(2) secondary thermal oxide：With the g-C obtained in step (1)3N4Coarse powder is raw material, and raw material is placed in burning boat, boat will be burnt
It is placed in airtight tube type stove, using inert gas as current-carrying gas, is passed through after the ethanol water that inert gas is passed through into various concentrations
The processing of different temperatures is carried out in tube furnace, the g-C of rich carbon is obtained3N4Nanometer sheet.
4. richness carbon g-C as described in claim 33N4The preparation method of nanometer sheet, it is characterised in that：By poly- in step (1)
Cooperation is urea with the raw materials of compound of generation triazine ring structure, cyanogen ammonia, dicyandiamide, one or more mixed in melamine
Compound.
5. richness carbon g-C as described in claim 33N4The preparation method of nanometer sheet, it is characterised in that：Calcining temperature in step (1)
Spend for 500-550 DEG C, the time is 3-6h.
6. richness carbon g-C as described in claim 33N4The preparation method of nanometer sheet, it is characterised in that：Calcining in step (2)
Temperature is 400-600 DEG C, and the time is 2-6h.
7. richness carbon g-C as described in claim 33N4The preparation method of nanometer sheet, it is characterised in that：It is different dense in step (2)
The concentration range of the ethanol water of degree is 1-10%.
8. richness carbon g-C as described in claim 33N4The preparation method of nanometer sheet, it is characterised in that：Inertia in step (2)
Gas is argon gas or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422779.XA CN107185579A (en) | 2017-06-07 | 2017-06-07 | A kind of rich carbon g C3N4Nanometer sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422779.XA CN107185579A (en) | 2017-06-07 | 2017-06-07 | A kind of rich carbon g C3N4Nanometer sheet and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107185579A true CN107185579A (en) | 2017-09-22 |
Family
ID=59877268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710422779.XA Pending CN107185579A (en) | 2017-06-07 | 2017-06-07 | A kind of rich carbon g C3N4Nanometer sheet and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107185579A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270361A (en) * | 2019-06-26 | 2019-09-24 | 南京润科环境有限公司 | A kind of multiphase carbon doping g-C3N4Composite photo-catalyst and its preparation method and application |
| CN111822031A (en) * | 2020-07-31 | 2020-10-27 | 江苏大学 | Carbon-rich carbon nitride nanotube photocatalyst and preparation method and application thereof |
| CN112536056A (en) * | 2019-09-20 | 2021-03-23 | 湖北大学 | Tungsten disulfide quantum dot/C-doped graphite-like phase carbon nitride nanosheet heterostructure photocatalyst and preparation method thereof |
| CN113921823A (en) * | 2021-10-09 | 2022-01-11 | 西安热工研究院有限公司 | CuO/O-g-C3N4Lithium ion battery cathode material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582761A (en) * | 2016-11-14 | 2017-04-26 | 江苏科技大学 | Carbon nitride hollow sphere photocatalyst, preparation method and application thereof |
| CN106629638A (en) * | 2016-10-10 | 2017-05-10 | 合肥工业大学 | G-C3N4 nanosheet with monodisperse structure and preparation method of g-C3N4 nanosheet |
-
2017
- 2017-06-07 CN CN201710422779.XA patent/CN107185579A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629638A (en) * | 2016-10-10 | 2017-05-10 | 合肥工业大学 | G-C3N4 nanosheet with monodisperse structure and preparation method of g-C3N4 nanosheet |
| CN106582761A (en) * | 2016-11-14 | 2017-04-26 | 江苏科技大学 | Carbon nitride hollow sphere photocatalyst, preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张文东等: "乙醇辅助制备碳掺杂ｇ－Ｃ３Ｎ４及增强可见光催化去除NO性能研究", 《重庆师范大学学报（自然科学版）》 * |
| 洪星星等: "原位聚合碳掺杂改性石墨态氮化碳光催化活性研究", 《影像科学与光化学》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270361A (en) * | 2019-06-26 | 2019-09-24 | 南京润科环境有限公司 | A kind of multiphase carbon doping g-C3N4Composite photo-catalyst and its preparation method and application |
| CN112536056A (en) * | 2019-09-20 | 2021-03-23 | 湖北大学 | Tungsten disulfide quantum dot/C-doped graphite-like phase carbon nitride nanosheet heterostructure photocatalyst and preparation method thereof |
| CN112536056B (en) * | 2019-09-20 | 2023-04-07 | 湖北大学 | Tungsten disulfide quantum dot/C-doped graphite-like phase carbon nitride nanosheet heterostructure photocatalyst and preparation method thereof |
| CN111822031A (en) * | 2020-07-31 | 2020-10-27 | 江苏大学 | Carbon-rich carbon nitride nanotube photocatalyst and preparation method and application thereof |
| CN111822031B (en) * | 2020-07-31 | 2023-09-22 | 江苏大学 | Carbon-rich carbon nitride nano tube photocatalyst, preparation method and application |
| CN113921823A (en) * | 2021-10-09 | 2022-01-11 | 西安热工研究院有限公司 | CuO/O-g-C3N4Lithium ion battery cathode material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guo et al. | A one-pot sealed ammonia self-etching strategy to synthesis of N-defective g-C3N4 for enhanced visible-light photocatalytic hydrogen | |
| CN107185579A (en) | A kind of rich carbon g C3N4Nanometer sheet and preparation method thereof | |
| Zhang et al. | Polymeric carbon nitride‐derived photocatalysts for water splitting and nitrogen fixation | |
| Bhirud et al. | An eco-friendly, highly stable and efficient nanostructured p-type N-doped ZnO photocatalyst for environmentally benign solar hydrogen production | |
| Liu et al. | Enhanced photocatalytic activity of direct Z-scheme Bi2O3/g-C3N4 composites via facile one-step fabrication | |
| CN103990485B (en) | Azotized carbon nano particle modifies composite bismuth vanadium photocatalyst and preparation method thereof | |
| CN104549500B (en) | A kind of nonmetal liquid phase doping prepares B doping g-C3n4the method of photocatalyst | |
| CN106994363B (en) | The method of one kettle way fabricated in situ carbon graphite phase carbon nitride photochemical catalyst | |
| CN105268463A (en) | Nitrogen doped carbon/carbon nitride photocatalyst material and one-step synthesis method thereof | |
| CN108579787B (en) | Preparation method of heterojunction photocatalyst for NADH regeneration | |
| CN110064429A (en) | Preparation method of sulfur doping azotized carbon nano piece and products thereof and application | |
| CN109289888B (en) | Preparation method of boron-doped porous carbon nitride material | |
| CN108607593B (en) | Cadmium sulfide nanoparticle modified niobium pentoxide nanorod/nitrogen-doped graphene composite photocatalyst and application thereof | |
| CN110342477B (en) | Oxygen-doped porous carbon nitride nanosheet and preparation method thereof | |
| CN111774084B (en) | Preparation method of phosphorus-doped carbon nitride-supported nickel efficient catalyst, product and application thereof | |
| KR101781412B1 (en) | Catalysts for ammonia dehydrogenation, methods of producing the same, and methods of producing hydrogen gas from ammonia using the same | |
| CN107282084B (en) | Chlorine-doped carbon quantum dot/g-C for efficiently degrading antibiotics3N4Preparation method of nanosheet composite material | |
| CN109999887B (en) | beta-FeOOH/g-C3N4Preparation method of heterojunction photocatalytic material | |
| CN108246331A (en) | ZnS micro-composites of graphene carbonization nitrogen quantity point modification and its preparation method and application | |
| CN106475126B (en) | A kind of graphite phase carbon nitride photochemical catalyst with nanobelt shape structure | |
| CN108067281A (en) | Porous g-C3N4Photochemical catalyst and its preparation method and application | |
| CN111774083B (en) | Preparation method of hydrogen evolution catalyst of low-temperature phosphorus-doped carbon nitride-loaded high-dispersion palladium, product and application | |
| CN110639585B (en) | Copolymerization modified layered graphite phase carbon nitride photocatalyst and preparation method and application thereof | |
| CN105618102A (en) | Carbon nitride photocatalyst with carbon nano-particles embedded in platy structures | |
| Sundaram et al. | Metal-free heterojunction of graphitic carbon nitride composite with superior and stable visible-light active photocatalysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
|
| RJ01 | Rejection of invention patent application after publication |