CN109622003B - g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof - Google Patents

g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof Download PDF

Info

Publication number
CN109622003B
CN109622003B CN201811300163.6A CN201811300163A CN109622003B CN 109622003 B CN109622003 B CN 109622003B CN 201811300163 A CN201811300163 A CN 201811300163A CN 109622003 B CN109622003 B CN 109622003B
Authority
CN
China
Prior art keywords
composite photocatalyst
tricyanomethanoimidazole
heating
water
preparation
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.)
Active
Application number
CN201811300163.6A
Other languages
Chinese (zh)
Other versions
CN109622003A (en
Inventor
周勇
杨勇
邹志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Yanchang Sanglaite New Energy Co ltd
Nanjing University
Kunshan Innovation Institute of Nanjing University
Original Assignee
Jiangsu Yanchang Sanglaite New Energy Co ltd
Nanjing University
Kunshan Innovation Institute of Nanjing University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Yanchang Sanglaite New Energy Co ltd, Nanjing University, Kunshan Innovation Institute of Nanjing University filed Critical Jiangsu Yanchang Sanglaite New Energy Co ltd
Priority to CN201811300163.6A priority Critical patent/CN109622003B/en
Publication of CN109622003A publication Critical patent/CN109622003A/en
Application granted granted Critical
Publication of CN109622003B publication Critical patent/CN109622003B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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—
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/0605—Binary compounds of nitrogen with carbon
    • 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 g-C 3 N 4 @g‑C 4 N 3 The composite photocatalyst is formed by covalent bond coupling and has a two-dimensional plane structure, wherein g-C 4 N 3 The content of (2) is 3-25wt%; the material is prepared from tricyanomethanoimidazole ionic liquid and g-C 3 N 4 Dispersing the precursor of (2) as raw material in water, ultrasonic treating for 0.5-1 h, evaporating off water phase to obtain uniform mixture; heating to 400-420 ℃ in a tube furnace at a certain heating rate, maintaining for 1-2 h, heating to 500-550 ℃ again, heating for 2-5 h, naturally cooling to room temperature, washing with deionized water, and vacuum drying to obtain g-C 3 N 4 @g‑C 4 N 3 A composite photocatalyst.

Description

g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof
Technical Field
The invention belongs to the technical field of high polymer semiconductor materials, and in particular relates to a g-C 3 N 4 @g-C 4 N 3 (graphite-like Nitrogen Compound g-C) 3 N 4 And g-C 4 N 3 ) A carbon composite photocatalyst and a preparation method thereof.
Background
In recent years, with the intensive research on organic semiconductor materials, a high molecular polymer semiconductor material, graphite-like carbon nitride (g-C 3 N 4 ) And has attracted a great deal of attention. With classical inorganic oxide semiconductor photocatalyst TiO 2 g-C compared with ZnO 3 N 4 Has the advantages of better visible light response (the band gap is narrower Eg=2.70 eV), stable chemical property, low price, easy manufacture and the like, and more importantly, the proper energy band structure, especially the higher conduction band position and the unique two-dimensional lamellar structure thereof, so that the device has higher photocatalytic degradation pollutant, photocatalytic water decomposition and photocatalytic CO in theory at the same time 2 Reduction activity. In addition, g-C 3 N 4 The method also has the characteristics of easy regulation and control of the chemical composition and energy band structure of the polymer semiconductor, and the like, so that the method becomes one of the novel semiconductor photocatalysts with the most research potential. However, g-C 3 N 4 As with conventional high molecular polymer, the crystallinity is relatively poor, and the exciton binding energy is relatively high, which is unfavorable for the rapid migration of the photon-generated carriers to the surface of the catalyst, so that the separation efficiency of the photon-generated carriers is relatively low, and g-C is severely inhibited 3 N 4 The photocatalytic activity of the catalyst affects the large-scale popularization and application of the catalyst. To further improve g-C 3 N 4 Is formed into g-C in recent years by morphology regulation, element doping and compounding with different semiconductor materials 3 N 4 Research hotspots on materials. Patent CN103170358A discloses a porous g-C 3 N 4 The photocatalyst and the preparation method thereof, the method comprises the steps of grinding and mixing dicyandiamide and thiourea, and calcining the mixture in air atmosphere to obtain porous g-C 3 N 4 . However, single-phase materials cannot realize effective separation of photogenerated electron-hole pairs, and the photocatalytic activity is limited. Patent CN 105858730a discloses a carbon nitride/tungsten oxide composite hollow microsphere material and a preparation method thereof, wherein glucose is used for heating to form carbon spheres, tungsten oxide and carbon nitride are synchronously loaded, and then a template is removed by high-temperature calcination to synchronously form carbon nitride, so that hollow microspheres with shells constructed by tungsten oxide and carbon nitride are prepared. But two materials constituting the heterojunctionThe photogenerated carriers have limited transport and separation capacity for physical bonding.
Recently, g-C 4 N 3 As a novel semi-metallic material, attention has been paid, and its application to photocatalytic water splitting to produce hydrogen has been reported. g-C 4 N 3 Has the same structure as g-C 3 N 4 And the precursors of the two have functional groups cyano capable of undergoing copolymerization. Will g-C 4 N 3 With g-C 3 N 4 Through covalent bond combination, excellent interface performance is favorable for rapid electron transport, so that photo-generated electrons and holes can be effectively separated and transferred, further the photoelectric performance of the material can be remarkably improved, and the composite material can degrade photocatalytic pollutants, decompose water to produce hydrogen, oxygen and CO 2 The method has great application potential in the fields of reduction conversion and the like.
Disclosure of Invention
The invention aims to provide a g-C 3 N 4 @g-C 4 N 3 (graphite-like Nitrogen Compound g-C) 3 N 4 And g-C 4 N 3 ) The composite photocatalyst and the preparation method and application thereof have the advantages that the preparation process of the material is simple and controllable, the material has higher specific surface area and good visible light responsiveness, and particularly the material has excellent photo-generated electron-hole separation capability, so that the material can degrade pollutants, water and CO in photocatalysis 2 The application field has great potential.
The technical solution for realizing the purpose of the invention is as follows: g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst g-C 3 N 4 And g-C 4 N 3 Is formed by covalent bond coupling and has a two-dimensional plane structure, wherein g-C 4 N 3 The content of (C) is 3-25wt%. The material is prepared from tricyanomethanoimidazole ionic liquid and g-C 3 N 4 The precursor of (C) is prepared by high-temperature copolymerization. The invention uses high molecular semi-metal g-C 4 N 3 With macromolecular semiconductor g-C 3 N 4 Coupling by covalent bond, semimetallic nature, g-C 4 N 3 With g-C 3 N 4 Similar structure and tightly continuous phaseThe interface provides conditions for photon-generated carrier migration, effective separation and efficient utilization thereof.
g-C as described above 3 N 4 @g-C 4 N 3 The preparation method of the composite photocatalyst comprises the following specific steps:
step a), tricyanomethanoimidazole ionic liquid and g-C 3 N 4 Dispersing the precursor of (2) as raw material in water, ultrasonic treating for 0.5-1 h, evaporating off water phase to obtain uniform mixture;
step b), heating the uniform mixture obtained in the step a) to 400-420 ℃ in a tube furnace at a certain heating rate, maintaining for 1-2 h, then heating to 500-550 ℃ for 2-5 h, naturally cooling to room temperature, washing with deionized water, and vacuum drying to obtain g-C 3 N 4 @g-C 4 N 3 A composite photocatalyst.
The tricyanomethanoimidazole ionic liquid in the step a) is one of tricyanomethanoimidazole 1-ethyl-3-methylimidazole, tricyanomethanoimidazole 1-butyl-3-methylimidazole and tricyanomethanoimidazole 1-hexyl-3-methylimidazole.
g-C as described in step a) 3 N 4 The precursor of the carbon nitride is one of dicyandiamide and cyanamide.
Tricyanomethanoimidazole ionic liquid with g-C in step a) 3 N 4 The mol ratio of the precursors is 1:10-1:30.
Said g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst for photocatalytic pollutant degradation, water decomposition and CO 2 Use in reduction reactions.
Photocatalytic pollutant degradation, water decomposition and CO 2 Use in reduction reactions.
The invention has the beneficial effects that the composite photocatalyst is of a two-dimensional nano-sheet structure, has higher specific surface area and is semi-metal g-C 4 N 3 Through covalent bond with g-C 3 N 4 The coupling and the compact interface have high-efficiency carrier transmission and photo-generated electron-hole separation efficiency, and can be applied to photocatalytic pollutant degradation, water decomposition and CO 2 Reduction field。
(1) Unlike common physically-bound heterojunctions, the present invention prepares g-C by high temperature copolymerization 3 N 4 @g-C 4 N 3 The composite photocatalyst has a 2D plane structure, and g-C in the composite photocatalyst can be regulated by changing the proportion of precursors 3 N 4 With g-C 4 N 3 The content of (3) is simple in preparation process.
(2)g-C 3 N 4 With g-C 4 N 3 The structure is similar, the compatibility and the binding force are excellent, the interface performance is outstanding, the transmission resistance of charges between two materials can be effectively reduced, and the separation capability of photo-generated electrons and holes is improved. The internal electrons of the two-dimensional material can reach the surface of the material to participate in the reaction more quickly, and the photon utilization rate is high.
(3) Semi-metallic material g-C 4 N 3 The conductivity is higher, the electron density is high, the improvement of the adsorption capacity of the material is facilitated, and more catalytic reaction active sites are provided.
Drawings
FIG. 1 is g-C 3 N 4 @g-C 4 N 3 And (3) preparing a flow chart of the composite photocatalyst.
FIG. 2 is the g-C obtained in example 2 3 N 4 @g-C 4 N 3 SEM photograph of the composite photocatalyst.
FIG. 3 shows the g-C obtained in example 2 3 N 4 @g-C 4 N 3 TEM photographs of composite photocatalysts.
FIG. 4 shows the g-C obtained in example 2 3 N 4 @g-C 4 N 3 AFM photographs of composite photocatalyst.
FIG. 5 shows the g-C obtained in example 2 3 N 4 @g-C 4 N 3 UV-vis spectra of the composite photocatalyst and its components.
FIG. 6 shows the g-C obtained in example 2 3 N 4 @g-C 4 N 3 TG curve of composite photocatalyst and its components.
FIG. 7 shows the g-C obtained in example 2 3 N 4 @g-C 4 N 3 Composite photo-catalystPhotocatalytic CO of a catalyst 2 And reducing application efficiency.
FIG. 8 shows the g-C obtained in example 3 3 N 4 @g-C 4 N 3 Of composite photocatalysts 13 C solid nuclear magnetic resonance spectrum.
Detailed Description
The present invention is described in further detail below with reference to the accompanying drawings. The present invention will be more fully understood by those skilled in the art from the following examples.
Example 1
0.402g (2.0 mmol) of tricyanomethanated 1-ethyl-3-methylimidazole and 3.363g (40 mmol) of dicyan diamine were added to 50ml of deionized water, and the mixture was stirred for 30 minutes with ultrasonic stirring. Evaporating the mixed solution to remove water phase, heating the mixture in a tube furnace at 2 ℃/min to 400 ℃, calcining for 1 hour, then heating to 550 ℃, preserving heat for 4 hours, naturally cooling, washing with water, and vacuum drying to obtain g-C 3 N 4 @g-C 4 N 3 A composite photocatalyst.
Example 2
0.458g (2.0 mmol) of tricyanomethanated 1-butyl-3-methylimidazole and 3.363g (40 mmol) of dicyan diamine were added to 50ml of deionized water, and the mixture was stirred for 30 minutes with ultrasonic stirring. Evaporating the mixed solution to remove water phase, heating the mixture in a tube furnace at 2 ℃/min to 400 ℃, calcining for 1 hour, then heating to 550 ℃, preserving heat for 4 hours, naturally cooling, washing with water, and vacuum drying to obtain g-C 3 N 4 @g-C 4 N 3 A composite photocatalyst.
FIG. 2 is g-C 3 N 4 @g-C 4 N 3 SEM photograph of composite photocatalyst, g-C can be seen 3 N 4 @g-C 4 N 3 The composite photocatalyst has a 2D planar structure, and the surface is flat and smooth.
FIG. 3 is g-C 3 N 4 @g-C 4 N 3 TEM photograph of the composite photocatalyst shows that the composite photocatalyst is ultrathin nano-sheet and has complete and uniform structure.
FIG. 4a is g-C 3 N 4 @g-C 4 N 3 Composite photocatalystFIG. 4b is an AFM photograph of selected regions g-C of FIG. 4a 3 N 4 @g-C 4 N 3 The thickness distribution diagram of the composite photocatalyst nano-sheet has the nano-sheet thickness of about 4nm and uniform size.
FIG. 5 g-C 3 N 4 @g-C 4 N 3 The composite photocatalyst and the ultraviolet-visible absorption diffuse reflection spectrum of the components thereof have good visible light absorption capacity, compared with the pure g-C 3 N 4 The absorption band is obviously red shifted and is similar to g-C 3 N 4 @g-C 4 N 3 Is consistent with the brown appearance of (c).
FIG. 6 is g-C 3 N 4 @g-C 4 N 3 The thermal weight curve of the composite photocatalyst and the components thereof can be calculated to obtain the g-C in the composite material 4 N 3 The mass percentage of (2) is 13%.
FIG. 7 is g-C 3 N 4 @g-C 4 N 3 Photocatalytic CO of composite photocatalyst 2 Reduction performance characterization, experiments used a 300W xenon lamp as the light source. As can be seen from the figure, g-C 3 N 4 @g-C 4 N 3 Has excellent catalytic activity, and CO yield reaches 99.03 mu mol g after 6 hours illumination -1 Average yield of 16.5. Mu. Mol g -1 h -1 。
Test shows that g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst for photocatalytic pollutant degradation, water decomposition and CO 2 The application effect of the reduction reaction is good, in particular to the application of the reduction reaction.
Example 3
0.458g (2.0 mmol) of tricyanomethanated 1-butyl-3-methylimidazole and 0.841g (10 mmol) of dicyan diamine were added to 50ml of deionized water, and the mixture was stirred for 30 minutes with ultrasonic treatment. Evaporating the mixed solution to remove water phase, heating the mixture in a tube furnace at 2 ℃/min to 400 ℃, calcining for 1 hour, then heating to 550 ℃, preserving heat for 4 hours, naturally cooling, washing with water, and vacuum drying to obtain g-C 3 N 4 @g-C 4 N 3 A composite photocatalyst.
FIG. 8 is g-C 3 N 4 @g-C 4 N 3 Solid nuclear magnetic carbon spectrum, g-C of composite photocatalyst 3 N 4 Signals of carbon atoms on heptazine rings and g-C 4 N 3 The signal of the carbon atom on the triazine ring forms an absorption peak of 156ppm chemical shift, and the absorption peak at 86ppm chemical shift corresponds to g-C 4 N 3 To a carbon atom of the triazine ring.
Example 4
0.514g (2.0 mmol) tricyanomethanate 1-hexyl-3-methylimidazole and 3.363g (40 mmol) dicyan diamine were added to 50ml deionized water, and the mixture was stirred for 30min and mixed uniformly. Evaporating the mixed solution to remove water phase, heating the mixture in a tube furnace at 2 ℃/min to 420 ℃, calcining for 1 hour, then heating to 550 ℃, preserving heat for 3 hours, naturally cooling, washing with water, and vacuum drying to obtain g-C 3 N 4 @g-C 4 N 3 A composite photocatalyst.
Example 5
0.458g (2.0 mmol) of tricyanomethanated 1-butyl-3-methylimidazole and 2.522g (60 mmol) of cyanamide are added to 50ml of deionized water, sonicated and stirred for 30min for uniform mixing. Evaporating the mixed solution to remove water phase, heating the mixture in a tube furnace at 2 ℃/min to 420 ℃, calcining for 2 hours, then heating to 550 ℃, preserving heat for 5 hours, naturally cooling, washing with water, and vacuum drying to obtain g-C 3 N 4 @g-C 4 N 3 A composite photocatalyst.

Claims (3)

1. g-C 3 N 4 @g-C 4 N 3 The preparation method of the composite photocatalyst is characterized by g-C 3 N 4 @g-C 4 N 3 The composite photocatalyst is composed of g-C 3 N 4 And g-C 4 N 3 Is formed by covalent bond coupling and has a two-dimensional plane structure, wherein g-C 4 N 3 The content of (2) is 3-25wt%; g-C 3 N 4 @g-C 4 N 3 The composite photocatalyst is prepared from tricyanomethanoimidazole ionic liquid and g-C 3 N 4 The precursor of (2) is prepared by high-temperature copolymerization reaction; the preparation method comprises the following stepsThe method comprises the following steps:
step a) Tricyanomethanation imidazole Ionic liquid and g-C 3 N 4 Dispersing the precursor of (2) as raw material in water, ultrasonic treating for 0.5-1 h, evaporating off water phase to obtain uniform mixture;
step b), heating the uniform mixture obtained in the step a) to 400-420 ℃ in a tube furnace at a certain heating rate, maintaining for 1-2 h, then heating to 500-550 ℃ for 2-5 h, naturally cooling to room temperature, washing with deionized water, and vacuum drying to obtain g-C 3 N 4 @g-C 4 N 3 A composite photocatalyst;
the tricyanomethanoimidazole ionic liquid in the step a) is one of tricyanomethanoimidazole 1-ethyl-3-methylimidazole, tricyanomethanoimidazole 1-butyl-3-methylimidazole and tricyanomethanoimidazole 1-hexyl-3-methylimidazole; said g-C 3 N 4 The precursor of (2) is one of dicyandiamide and cyanamide.
2. g-C according to claim 1 3 N 4 @g-C 4 N 3 The preparation method of the composite photocatalyst is characterized in that in the step a), tricyanomethanoimidazole ionic liquid and g-C 3 N 4 The mol ratio of the precursors is 1:10-1:30.
3. The process according to claim 1, wherein g-C is obtained 3 N 4 @g-C 4 N 3 Composite photocatalyst for photocatalytic pollutant degradation, water decomposition and CO 2 Use in reduction reactions.
CN201811300163.6A 2018-11-02 2018-11-02 g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof Active CN109622003B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811300163.6A CN109622003B (en) 2018-11-02 2018-11-02 g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811300163.6A CN109622003B (en) 2018-11-02 2018-11-02 g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN109622003A CN109622003A (en) 2019-04-16
CN109622003B true CN109622003B (en) 2023-12-15

Family

ID=66067241

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811300163.6A Active CN109622003B (en) 2018-11-02 2018-11-02 g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN109622003B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110433840A (en) * 2019-07-22 2019-11-12 盐城工学院 A kind of high activity g-C with Lamellar cracking micro-structure3N4The preparation method of catalysis material
CN111740076A (en) * 2020-06-22 2020-10-02 珠海冠宇电池股份有限公司 Preparation method of nitrogen-doped, boron-doped or phosphorus-doped graphitized carbon nitride material
CN112844438B (en) * 2021-02-05 2022-08-16 南京理工大学 Erythroid BiVO 4 /hm-C(CN) 3 Z-type heterojunction and preparation method and application thereof
CN113680361B (en) * 2021-08-09 2022-07-29 电子科技大学 Cobalt-ruthenium bimetallic monatomic photocatalyst as well as preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774700A (en) * 2009-12-30 2010-07-14 北京工业大学 Cellular automata model-based visual simulation method for sewage purification process
CN102067257A (en) * 2008-02-19 2011-05-18 索拉普琳特有限公司 Electrolyte composition
CN103140285A (en) * 2010-09-30 2013-06-05 赢创奥克森诺有限责任公司 Use of supported ionic liquid phase (silp) catalyst systems in the hydroformylation of olefin-containing mixtures to give aldehyde mixtures with a high proportion of 2-unbranched aldehydes
CN104475140A (en) * 2014-11-07 2015-04-01 江苏大学 Silver-modified carbon nitride composite photocatalytic material and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8632743B2 (en) * 2010-01-04 2014-01-21 Michigan Technological University Synthesis of carbon nitrides from carbon dioxide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102067257A (en) * 2008-02-19 2011-05-18 索拉普琳特有限公司 Electrolyte composition
CN101774700A (en) * 2009-12-30 2010-07-14 北京工业大学 Cellular automata model-based visual simulation method for sewage purification process
CN103140285A (en) * 2010-09-30 2013-06-05 赢创奥克森诺有限责任公司 Use of supported ionic liquid phase (silp) catalyst systems in the hydroformylation of olefin-containing mixtures to give aldehyde mixtures with a high proportion of 2-unbranched aldehydes
CN104475140A (en) * 2014-11-07 2015-04-01 江苏大学 Silver-modified carbon nitride composite photocatalytic material and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Half-metallic and magnetic properties in nonmagnetic element embedded graphitic carbon nitride sheets";Bo Meng et al.;《Phys.Chem.Chem.Phys.》;第17卷;第22136-22143页 *
"A multifunctional material of two-dimensional g-C4N3/graphene bilayer";Jie Cui et al.;《Phys.Chem.Chem.Phys.》;第18卷;第25388-25393页 *

Also Published As

Publication number Publication date
CN109622003A (en) 2019-04-16

Similar Documents

Publication Publication Date Title
CN109622003B (en) g-C 3 N 4 @g-C 4 N 3 Composite photocatalyst, preparation method and application thereof
CN112169819B (en) g-C 3 N 4 /(101)-(001)-TiO 2 Preparation method and application of composite material
CN108906111B (en) Self-assembly carbon nitride copolymerized photocatalytic composite material and preparation method and application thereof
CN110342477B (en) Oxygen-doped porous carbon nitride nanosheet and preparation method thereof
CN107876074B (en) g-C3N4Preparation method of nanoparticle/flower-shaped BiOI composite material
CN107983387B (en) Preparation method and application of carbon nitride/bismuth selenate composite material
CN107876079B (en) Preparation method and application of sulfur-doped zinc oxide quantum dot modified porous graphite phase nitrogen carbide composite material
CN113042090B (en) Nonmetallic photocatalyst with charge transfer chain and preparation method and application thereof
CN113145138B (en) Thermal response type composite photocatalyst and preparation method and application thereof
CN113086955A (en) Preparation method of carbon-deficient carbon nitride material for photocatalytic nitrogen fixation
CN105688969A (en) Preparation method of catalyst for photo-catalytically splitting water to produce hydrogen
CN110756223A (en) Adsorption catalysis composite material and application thereof in pollutant treatment
CN113522340A (en) Photocatalyst composite material for reducing carbon dioxide and preparation method and application thereof
CN112495402A (en) Molybdenum disulfide-loaded cobalt-doped zinc oxide photocatalytic degradation material and preparation method thereof
CN110227530B (en) Carbon/sulfur co-doped mesoporous g-C3N4Preparation method of composite photocatalytic material
CN115090318B (en) Preparation method and application of high specific surface area intermolecular heterojunction carbon nitride photocatalyst
CN112973755B (en) Graphite-phase carbon nitride-based two-dimensional composite photocatalytic material and preparation method and application thereof
CN112808290B (en) Enol-ketone covalent organic framework/graphite phase carbon nitride composite photocatalyst and preparation method and application thereof
CN110479336B (en) Bi5O7Br/thin layer Ti3C2Preparation method and application of composite photocatalyst
CN110711599A (en) g-C3N4/Bi5O7I composite microsphere material and preparation method thereof
CN113663723A (en) Carbon nitride composite material, preparation method thereof and application thereof in artificial photosynthesis
CN112892572A (en) Au-PCN-CNT composite material and preparation method and application thereof
CN111957334A (en) Preparation method of composite ternary heterojunction photocatalyst
CN112871165A (en) Two-dimensional WO modified by noble metal loading3Preparation method of nanosheet photocatalyst
CN114632532B (en) In (In) 2 O 3 @InN/ZnIn 2 S 4 Ternary composite photocatalyst and preparation method thereof

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
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 215300 room 4, 1798 Zhonghua Garden West Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province

Applicant after: Jiangsu Yanchang sanglaite new energy Co.,Ltd.

Applicant after: KUNSHAN INNOVATION RESEARCH INSTITUTE OF NANJING University

Applicant after: NANJING University

Address before: 215300 1st floor, Tianrui building, 1666 Zuchongzhi South Road, Kunshan City, Suzhou City, Jiangsu Province

Applicant before: KUNSHAN SUNLAITE NEW ENERGY Co.,Ltd.

Applicant before: KUNSHAN INNOVATION RESEARCH INSTITUTE OF NANJING University

Applicant before: NANJING University

GR01 Patent grant
GR01 Patent grant