CN115608379B - Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof - Google Patents

Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof Download PDF

Info

Publication number
CN115608379B
CN115608379B CN202211285900.6A CN202211285900A CN115608379B CN 115608379 B CN115608379 B CN 115608379B CN 202211285900 A CN202211285900 A CN 202211285900A CN 115608379 B CN115608379 B CN 115608379B
Authority
CN
China
Prior art keywords
sulfur
ultraviolet light
graphene
hybridized
catalytic material
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
CN202211285900.6A
Other languages
Chinese (zh)
Other versions
CN115608379A (en
Inventor
张倩
洪俊明
陈思
胡腾飞
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.)
Huaqiao University
Original Assignee
Huaqiao 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 Huaqiao University filed Critical Huaqiao University
Priority to CN202211285900.6A priority Critical patent/CN115608379B/en
Publication of CN115608379A publication Critical patent/CN115608379A/en
Application granted granted Critical
Publication of CN115608379B publication Critical patent/CN115608379B/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
    • B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
    • B01J27/04—Sulfides
    • 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
    • B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
    • B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
    • 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
    • B01J35/33—Electric or magnetic 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
    • B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
    • B01J37/344—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of electromagnetic wave energy
    • B01J37/345—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of electromagnetic wave energy of ultraviolet wave energy
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/308—Dyes; Colorants; Fluorescent agents
    • 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
    • C02F2101/345—Phenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Toxicology (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses an ultraviolet light-induced sulfur hybridization graphene catalytic material and a preparation method thereof. The preparation method of the thia-hybridized graphene catalytic material comprises the steps of exciting 50-200 mL/min carrier gas by 15-40W ultraviolet light source irradiation titanium dioxide, and then introducing graphene oxide, sulfur precursor and water, and carrying out low-temperature thermal annealing for 1-8 h at 150-400 ℃, wherein the edge-type thia-hybridized structure accounts for more than 65% of the total thia-hybridized structure. According to the invention, the synergistic effect of ultraviolet light source irradiation titanium dioxide excitation carrier gas activation and low-temperature annealing is utilized, and the edge type sulfur hybridization proportion with high catalytic activity is improved by regulating and controlling the ultraviolet light induction duration and the reaction temperature under proper reaction conditions, so that the hybridized graphene material has more excellent catalytic activity; the invention can reduce the energy consumption and operation safety of directional regulation of the catalytic material, is favorable for deeply exploring the catalytic action mechanism of the hybridized graphene material, and has important significance in theoretical research and popularization and application of the hybridized graphene material.

Description

Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof
Technical Field
The invention belongs to the technical field of graphene catalysts, and particularly relates to an ultraviolet light-induced sulfur hybridization graphene catalytic material and a preparation method thereof.
Background
Graphene, one of the most interesting materials in the new era, integrates the advantages of excellent conductivity, excellent mechanical strength, surprising chemical stability, unparalleled thinness and transparency. With continuous deep research, in order to widen the practical application prospect of graphene materials, improve the problems of easy aggregation, accumulation and the like of graphene, give play to the original characteristics of the materials, and the innovative materials based on graphene hybridization get more attention and become an emerging research hot spot. Among the many hybrid elements, sulfur is considered to be a more suitable dopant for graphene due to its similar properties to carbon. The electron distribution of graphene can be effectively regulated by introducing sulfur for graphene hybridization, the structure and element composition are changed, the physical and chemical properties of the graphene are regulated, and the bottleneck of the graphene material in practical application is solved, so that the application potential of the graphene material is released.
However, studies have shown that there are four types of sulfur atoms in sulfur hybridized graphene: sulfur adsorbed on the graphene surface replaces graphene carbon atoms in two different forms of sulfur or sulfur oxide, or connects two graphene sheets by forming a sulfur cluster ring. The level of sulfur hybridization and the configuration of sulfur have a significant impact on the electrochemical activity of the sulfur hybridized graphene material, with edge sulfur (C-SO X The structure of the-C) can effectively increase the active site of the graphene material in the electrocatalytic reaction, and is beneficial to the improvement of the catalytic performance of the material. In order to effectively regulate and control the doping configuration of sulfur, the traditional thermal annealing method can utilize high-temperature calcination to promote heteroatom doping, and is widely applied to the preparation of various hybrid graphene materials. The method can realize the adjustment of the doping type of the hetero atom by controlling the reaction temperature, but the preparation of the material with the optimal performance by using the thermal annealing generally needs higher calcination temperature>500 ℃ and higher energy consumption. To solve this problem, improvements in thermal annealing have been developed. In a plurality of treatment methods, the ultraviolet light induction developed by the invention has the advantages of simple and easy operation, controllable defect degree, low cost, high efficiency and the like. The free radical generated by ultraviolet light induction can attack the graphene and generate defects, which is helpful for doping hetero atoms and adjusting sulfur doping configuration. Therefore, the ultraviolet light induction method can be used for realizing the aim of preparing the material with high catalytic performance with low energy consumption.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an ultraviolet light-induced sulfur hybridization graphene catalytic material and a preparation method thereof, and solves the problem of high energy consumption of a thermal annealing method in the background art.
One of the technical schemes adopted for solving the technical problems is as follows: the preparation method of the ultraviolet light induced thia graphene catalytic material comprises the following steps:
and (3) exciting 50-200 mL/min carrier gas to generate an active intermediate by using 15-40W ultraviolet light source to irradiate titanium dioxide, and then introducing graphene oxide, sulfur precursor and water, and carrying out low-temperature thermal annealing for 1-8 h at 150-400 ℃ to obtain the ultraviolet light-induced sulfur hybridized graphene catalytic material.
In a preferred embodiment of the invention, 80 to 90wt% graphene oxide, 1.50 to 5.00wt% sulfur precursor, and the balance water are introduced.
In a preferred embodiment of the invention, the titanium dioxide is irradiated by 20-35W ultraviolet light source to excite 80-150 mL/min carrier gas, 82-88 wt% of graphene oxide, 2.50-4.00 wt% of sulfur precursor and the balance of water are introduced, and low temperature thermal annealing is carried out for 2-6 h at 200-350 ℃.
In a preferred embodiment of the present invention, the carrier gas is carbon monoxide or methane.
In a preferred embodiment of the present invention, the sulfur precursor is diphenyl disulfide or hexamercaptobenzene.
The second technical scheme adopted by the invention for solving the technical problems is as follows: provides an ultraviolet light-induced thia-graphene catalytic material, which is prepared by adopting the method.
In a preferred embodiment of the present invention, an edge-type sulfur-hybridized graphene material is included.
In a preferred embodiment of the present invention, the edge-type sulfur-hybridized structure accounts for 65wt% or more of the total sulfur-hybridized structure.
Compared with the background technology, the technical proposal has the following advantages:
(1) The invention generates CO and CH by ultraviolet light induced excitation carrier gas 3 ·- The active intermediate is then reacted with the graphene edge with higher electron density to form an activated graphene edge structure,the preparation method has the advantages of novel preparation route, simple and easy operation, high sulfur hybridization controllability, low energy consumption and high efficiency, regulates and controls the load quantity and load form of sulfur atoms under proper reaction conditions, improves the edge type sulfur hybridization proportion with high catalytic activity, and provides an important technical means for promoting the electrocatalytic efficiency of the hybridization material and deeply researching the heteroatom action principle.
(2) The ultraviolet light induced edge type sulfur hybridization graphene catalytic material has good electrocatalytic activity under normal temperature and normal pressure.
(3) The invention can expand the practical application prospect of the material in the catalytic industry, is helpful for in-depth exploration of the catalytic action mechanism of the hybrid graphene material, and has important significance in theoretical research and popularization and application of the hybrid graphene material.
Drawings
FIG. 1 is a transmission electron microscope image of an example UV-induced edge-type thia-graphene catalytic material.
FIG. 2 is an X-ray photoelectron spectroscopy analysis of an ultraviolet light-induced edge-type thia-graphene catalytic material in an example.
Fig. 3 is a graph showing the efficiency of the graphene catalytic material and graphene catalyst material to degrade bisphenol a in the examples and comparative examples.
Fig. 4 is an efficiency graph of degradation of dye methyl orange and active black 5 by the uv-induced edge-type sulfur hybridized graphene catalytic material in the examples.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments, but the scope of the present invention is not limited to these embodiments.
The invention relates to an ultraviolet light induced thia graphene catalytic material, which utilizes the synergistic effect of ultraviolet light induced process for activating and annealing at low temperature by exciting carrier gas by irradiating titanium dioxide with ultraviolet light source 3 The intermediate is a compound of the formula II,the generated active intermediate is then reacted with graphene edges with higher electron density to form an activated graphene edge structure, so that more sulfur atoms are obtained to be doped in the graphene structure in an edge hybridization mode.
The method specifically comprises the following steps:
(1) Weighing the following raw materials: 80-90 wt% of graphene oxide, 1.50-5.00 wt% of sulfur precursor and the balance of water;
(2) Irradiating the titanium dioxide assembly with a carrier gas via an ultraviolet light source: the titanium dioxide is irradiated by a 15W to 40W ultraviolet light source to excite 50mL/min to 200mL/min carrier gas;
(3) And (3) introducing the excitation carrier gas obtained in the step (2) into the mixture obtained in the step (1), and carrying out low-temperature thermal annealing for 1-8 h at 150-400 ℃ to obtain the ultraviolet light-induced sulfur hybridized graphene catalytic material, wherein the edge type sulfur hybridized structure accounts for more than 65% of the total sulfur hybridized structure.
The sulfur precursor is diphenyl disulfide or hexamercapto benzene.
Examples
The ultraviolet light induced edge type sulfur hybridization graphene catalytic material specifically comprises the following steps:
(1) Weighing the following raw materials: 85wt% of graphene oxide, 2.0wt% of diphenyl disulfide and the balance of water;
(2) Irradiating the titanium dioxide component with carbon monoxide carrier gas through an ultraviolet light source;
(3) And (3) introducing the excitation carrier gas obtained in the step (2) into the mixture obtained in the step (1), and carrying out low-temperature thermal annealing at 1200 ℃ for 6 hours to obtain the ultraviolet light-induced edge-type sulfur hybridized graphene catalytic material.
The microscopic morphology of the ultraviolet light induced edge type sulfur hybridization graphene material is shown in fig. 1, and the analysis of the edge type sulfur hybridization morphology in the ultraviolet light induced edge type sulfur hybridization graphene material is shown in fig. 2. As shown in fig. 1, the hybrid material exhibits a typical disordered carbon structure and a stacked two-dimensional (2D) nanoplatelet morphology. FIG. 2 is a S2 p spectrum in which an ultraviolet light induced edge type sulfur hybrid graphene material is located at a peak at 169.0eV and an edge sulfur C-SO X C is related and the peak at 163.9eV is related to the central sulfur C-S-C. The hybrid material prepared by the invention adopts edge sulfur C-SO X -C is the dominant morphology (66.67%).
Comparative example
The comparative example differs from the example in that: the conventional thermal annealing method at 200 ℃, 400 ℃ and 600 ℃ is adopted respectively.
The ultraviolet light-induced edge type sulfur hybridization graphene catalytic material prepared in the embodiment is subjected to electrocatalytic activity test:
electrocatalytically degraded bisphenol a (BPA) was tested using a potentiostat.
BPA is used as a target pollutant, and the material performance is judged according to the electrocatalytic oxidative degradation effect. Coating 4mg of thia-hybridized graphene on 2cm multiplied by 2cm carbon cloth by using conductive adhesive, and taking the dried carbon cloth as an anode; taking a copper sheet with the length of 8cm multiplied by 2cm as a cathode; the distance between the two is controlled to be 1cm, a constant potential current meter (Shanghai's day) of DJS-292B is used for adjusting the external current, 1g/L NaCl is used as electrolyte, 200mL of 10mg/L BPA solution is degraded in a 250mL beaker, and a magnetic stirrer is used for keeping the solution uniformly stirred in the whole process. The potentiostat switch was turned on and 1mL of water sample was taken over the set time period and added to a 2mL centrifuge tube that had been filled with 1mL of methanol quencher. The well mixed liquid was filtered for impurities using a 0.22 μm filter head, and the BPA content of the filtered liquid was measured using an actyarc high performance liquid chromatograph (wattsu, usa).
And performing electrocatalytic activity test on the ultraviolet light-induced edge type sulfur hybridized graphene material to respectively obtain an efficiency map of degrading BPA of the ultraviolet light-induced edge type sulfur hybridized graphene catalytic material in FIG. 3 and an efficiency map of degrading dye of the ultraviolet light-induced edge type sulfur hybridized graphene catalytic material in FIG. 4. As can be seen from fig. 3, when the ultraviolet light-induced edge type sulfur hybridized graphene is adopted, the degradation effect of BPA is obviously better than that of the catalyst and the graphene prepared by the traditional thermal annealing method. The degradation efficiency of the dye of FIG. 4 (methyl orange, reactive black 5) can reach 60-80%, slightly lower than the catalytic efficiency for BPA. Ultraviolet light induces hybridization of edge type sulfur to obviously improve the removal rate of BPA and dye, which illustrates the important effect of the hybridization of the edge type sulfur.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (6)

1. A preparation method of an ultraviolet light induced thia graphene catalytic material is characterized by comprising the following steps of: the method comprises the following steps:
after titanium dioxide is irradiated by a 15-40W ultraviolet light source to excite 50-200 mL/min carrier gas to generate an active intermediate, graphene oxide, a sulfur precursor and water are introduced, and low-temperature thermal annealing is performed for 1-8 hours at 150-400 ℃ to obtain an ultraviolet light-induced sulfur hybridized graphene catalytic material; the carrier gas is carbon monoxide or methane, and the sulfur precursor is diphenyl disulfide or hexamercapto benzene; the reactive intermediate comprises CO or CH 3 -an intermediate;
the prepared ultraviolet light-induced sulfur hybridized graphene catalytic material comprises an edge type sulfur hybridized graphene material; the edge type sulfur hybridized structure accounts for more than 65 weight percent of the total sulfur hybridized structure.
2. The method for preparing the ultraviolet light induced sulfur hybridized graphene catalytic material according to claim 1, wherein the method comprises the following steps: and (3) introducing 80-90 wt% of graphene oxide, 1.50-5.00 wt% of sulfur precursor and the balance of water.
3. The method for preparing the ultraviolet light induced sulfur hybridized graphene catalytic material according to claim 1, wherein the method comprises the following steps: and (3) irradiating titanium dioxide by using a 20-35W ultraviolet light source to excite carrier gas with a concentration of 80-150 mL/min.
4. The method for preparing the ultraviolet light induced sulfur hybridized graphene catalytic material according to claim 1, wherein the method comprises the following steps: and (3) introducing 82-88 wt% of graphene oxide, 2.50-4.00 wt% of sulfur precursor and the balance of water.
5. The method for preparing the ultraviolet light induced sulfur hybridized graphene catalytic material according to claim 1, wherein the method comprises the following steps: and (3) low-temperature thermal annealing at 200-350 ℃ for 2-6 h.
6. An ultraviolet light induced thia-graphene catalytic material, characterized in that: the method of any one of claims 1-5.
CN202211285900.6A 2022-10-20 2022-10-20 Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof Active CN115608379B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211285900.6A CN115608379B (en) 2022-10-20 2022-10-20 Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211285900.6A CN115608379B (en) 2022-10-20 2022-10-20 Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN115608379A CN115608379A (en) 2023-01-17
CN115608379B true CN115608379B (en) 2024-03-29

Family

ID=84865412

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211285900.6A Active CN115608379B (en) 2022-10-20 2022-10-20 Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN115608379B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104098088A (en) * 2014-06-17 2014-10-15 华南理工大学 Preparation method for nano-zinc oxide modified graphene hybrid material
CN105399079A (en) * 2014-08-27 2016-03-16 中国石油化工股份有限公司 Synthetic method of sulfur-doped graphene
CN106587020A (en) * 2016-12-21 2017-04-26 兰州理工大学 Quick preparation method of high-conductivity sulfur-doped graphene
CN107973289A (en) * 2017-11-08 2018-05-01 华侨大学 A kind of sulfur doping graphene catalysis material and preparation method thereof
CN109573990A (en) * 2019-01-21 2019-04-05 广东工业大学 A method of quickly preparing patterning doped graphene by ultraviolet laser
KR20200002117A (en) * 2018-06-29 2020-01-08 대구대학교 산학협력단 Preparing method for sulfur-doped graphene using electrochemical method and bifunctional catalyst comprising sulfur-doped graphene prepared therefrom
CN114262914A (en) * 2021-11-29 2022-04-01 安徽格兰科新材料技术有限公司 Laser-induced graphene-supported iron-doped cobalt disulfide catalyst and preparation method thereof
CN114695603A (en) * 2020-12-30 2022-07-01 中国科学院长春光学精密机械与物理研究所 Preparation method of deep ultraviolet LEDs and deep ultraviolet LEDs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104098088A (en) * 2014-06-17 2014-10-15 华南理工大学 Preparation method for nano-zinc oxide modified graphene hybrid material
CN105399079A (en) * 2014-08-27 2016-03-16 中国石油化工股份有限公司 Synthetic method of sulfur-doped graphene
CN106587020A (en) * 2016-12-21 2017-04-26 兰州理工大学 Quick preparation method of high-conductivity sulfur-doped graphene
CN107973289A (en) * 2017-11-08 2018-05-01 华侨大学 A kind of sulfur doping graphene catalysis material and preparation method thereof
KR20200002117A (en) * 2018-06-29 2020-01-08 대구대학교 산학협력단 Preparing method for sulfur-doped graphene using electrochemical method and bifunctional catalyst comprising sulfur-doped graphene prepared therefrom
CN109573990A (en) * 2019-01-21 2019-04-05 广东工业大学 A method of quickly preparing patterning doped graphene by ultraviolet laser
CN114695603A (en) * 2020-12-30 2022-07-01 中国科学院长春光学精密机械与物理研究所 Preparation method of deep ultraviolet LEDs and deep ultraviolet LEDs
CN114262914A (en) * 2021-11-29 2022-04-01 安徽格兰科新材料技术有限公司 Laser-induced graphene-supported iron-doped cobalt disulfide catalyst and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AuCl3 chemical doping on defective graphene layer;Sooyeoun Oh等;《Journal of Vacuum Science & Technology A》;第33卷(第2期);第021502页 *
Controlled defect formation and heteroatom doping in monolayer graphene using active oxygen species under ultraviolet irradiation;Ryuichi Kato等;《Carbon》;第171卷;第55-61页 *

Also Published As

Publication number Publication date
CN115608379A (en) 2023-01-17

Similar Documents

Publication Publication Date Title
Wang et al. Facile synthesis of C3N4/NiIn2S4 heterostructure with novel solar steam evaporation efficiency and photocatalytic H2O2 production performance
Luo et al. Controlled synthesis of hollow carbon ring incorporated g-C3N4 tubes for boosting photocatalytic H2O2 production
Chen et al. Synthesis and modification strategies of g-C3N4 nanosheets for photocatalytic applications
CN109126867B (en) Photocatalytic separation membrane for water treatment and preparation method thereof
WO2019223051A1 (en) Method for promoting coking wastewater treatment by photocatalytic electrode coupled microbial fuel cell
Zhang et al. Unified photoelectrocatalytic microbial fuel cell harnessing 3D binder-free photocathode for simultaneous power generation and dual pollutant removal
CN113042084B (en) Preparation method and application of manganese oxide composite carbon nitride nanotube composite photocatalyst
CN113244943B (en) Composite graphite phase carbon nitride material and preparation method and application thereof
CN110368962A (en) A kind of BiOI/WO3Preparation method, product and the application of hetero-junctions efficient photoelectricity treater catalysis electrode
CN113023835A (en) Preparation method of electro-Fenton cathode material based on sludge-based biomass carbon, product and application thereof
Ren et al. Carrier modification and its application in continuous photo‐hydrogen production using anaerobic fluidized bed photo‐reactor
CA3154795A1 (en) Process for doping graphene with nitrogen and sulfur by reducing graphene oxide with microorganisms, nitrogen-and sulfur-doped graphene thus obtained and its use
CN115608379B (en) Ultraviolet light-induced sulfur hybridization graphene catalytic material and preparation method thereof
Yang et al. Direct Z-scheme WO 3/covalent organic framework (COF) heterostructure for enhanced photocatalytic hydrogen peroxide production in water
CN109395759B (en) Fe with core-shell structure3C nano particle and preparation method and application thereof
CN114602450A (en) Co/Zn-g-C3N4Photocatalytic material, preparation and application thereof
Yang et al. Enhancing photocatalytic cleavage of CC bonds in lignin model substrates by ternary nanocomposite of g-C3N4/rGO/CdS using rGO as electronic mediators
CN114260026A (en) Surface electron-withdrawing group-modified ultrathin graphite-phase carbon nitride nanosheet photocatalytic material and preparation method and application thereof
CN109110882A (en) A kind of method of electrochemistry removal paraxylene
CN113663713A (en) Preparation method of modified g-C3N4/CdS and method for preparing hydrogen by photocatalysis
Duarte-Urbina et al. Bioanodes containing catalysts from onion waste and Bacillus subtilis for energy generation from pharmaceutical wastewater in a microbial fuel cell
CN116726968A (en) Potassium and multi-kind iodine co-doped carbon nitride and preparation method and application thereof
CN115888787B (en) Ozone-reinforced graphite nitrogen-doped graphene catalytic material and preparation method thereof
CN113522338A (en) Boron-oxygen co-doped carbon nitride non-metallic ozone catalyst and preparation method and application thereof
Gu et al. Fabrication of WO3 nanorod/graphene/BiV1− x Mo x O4 heterojunction photoelectrode for efficient photoelectrochemical water splitting

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
GR01 Patent grant
GR01 Patent grant