CN111573789A - Preparation method and application of photo-anode material - Google Patents

Preparation method and application of photo-anode material Download PDF

Info

Publication number
CN111573789A
CN111573789A CN202010472459.7A CN202010472459A CN111573789A CN 111573789 A CN111573789 A CN 111573789A CN 202010472459 A CN202010472459 A CN 202010472459A CN 111573789 A CN111573789 A CN 111573789A
Authority
CN
China
Prior art keywords
solution
anode
titanium sheet
pbo
titanium
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
Application number
CN202010472459.7A
Other languages
Chinese (zh)
Inventor
张凤凤
巩运军
姜思泉
张磊
姜丽明
张毅
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.)
SHANDONG TAIBAO PACKAGING PRODUCT CO Ltd
Original Assignee
SHANDONG TAIBAO PACKAGING PRODUCT CO Ltd
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 SHANDONG TAIBAO PACKAGING PRODUCT CO Ltd filed Critical SHANDONG TAIBAO PACKAGING PRODUCT CO Ltd
Priority to CN202010472459.7A priority Critical patent/CN111573789A/en
Publication of CN111573789A publication Critical patent/CN111573789A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C02F2001/46138—Electrodes comprising a substrate and a coating
    • C02F2001/46142—Catalytic coating
    • 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
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4618—Supplying or removing reactants or electrolyte
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The invention particularly relates to a preparation method of a photo-anode material, which is characterized by comprising the following steps: 1) cutting the titanium plate into titanium sheets; 2) etching the titanium sheet; 3) ultrasonically removing impurities from the etched titanium sheet and drying; 4) preparation C3N4Grinding into powder for later use; 5) 1 to 5g/L of C3N4Adding Pb (NO)3)2In solution, make C3N4Present in suspension in solution; 6) adopting a double-electrode system, respectively taking two treated titanium sheets as a cathode and an anode, taking the solution prepared in the step 5) as a supporting electrolyte, and preparing PbO by adopting an electrodeposition method2/C3N4And an anode electrode. The application of the photoanode material is characterized in that PbO is added2/C3N4The anode electrode and the titanium sheet are respectively used as an anode and a cathode, and the concentration of Na is 0.1-0.2mol/L2SO4The solution is used as supporting electrolyte until the printing and dyeing wastewater is degraded to nothingThe color is transparent. The PbO2/C3N4 nanowire in the photoanode material prepared by the invention is firmly combined with the substrate, is uniformly distributed, has low cost and good effect of degrading printing and dyeing wastewater.

Description

Preparation method and application of photo-anode material
Technical Field
The invention belongs to the field of material chemistry, and particularly relates to a preparation method and application of a photo-anode material.
Background
In the modern society, with the increasing types of printed matters and packaging products, the types and the amount of dyes are increasing day by day, and high-chroma printing and dyeing wastewater is the harmful wastewater accepted by the industry at present, wherein the harmful wastewater mainly contains organic matters which are difficult to biodegrade, such as dyes, pigments and the like, has large influence on the environment and high treatment cost, so that the degradation and decoloration treatment is needed, the pollution is reduced, and the ecological balance is protected. In order to solve the pollution problem, many materials are used as materials for degrading printing and dyeing wastewater, such as graphite, platinum, RuO2, SnO2, PbO2, and boron-doped diamond (BDD). Among them, PbO2 is attractive because of its high electrical conductivity, high overpotential for Oxygen Evolution Reaction (OER), chemical inertness, and low cost. In recent years, the skilled person has focused on modifying the catalytic activity and stability of PbO2 electrodes. For example, patent CN106222717 provides a method for preparing an iodine-containing lead dioxide electrode, which has the characteristics of low cost, high activity and long service life, and has a good removing effect on 4-chlorophenol; patent CN106868509 provides a preparation method of a graphene-modified fluorine-containing lead dioxide electrode, and the electrode prepared by the method has higher electrocatalytic activity and longer service life than a common fluorine-containing lead dioxide electrode.
Disclosure of Invention
The invention aims to provide a preparation method and application of a photoanode material, which is used for preparing an electrode of carbon nitride modified lead dioxide for treating printing and dyeing wastewater generated by manufacturing printed matters and packaging products and prepared PbO2/C3N4The nanowires are firmly combined with the matrix and are uniformly distributed, the cost is low, and the effect of degrading printing and dyeing wastewater is good.
The invention is realized by the following technical scheme:
namely, the preparation method of the photo-anode material is characterized by comprising the following steps:
1) cutting a titanium plate with the purity of 99.7% and the thickness of 0.5-2 mm into a rectangular titanium sheet with the length of 60-80 mm, the width of 5-15 mm and the thickness of 0.5-2 mm by using an aviation shear, using the rectangular titanium sheet as a matrix, and then washing with deionized water for 3-5 times;
2) etching the titanium sheet cleaned in the step 1) for 1-3 hours in an oxalic acid solution with the water bath temperature of 75-85 ℃ and the concentration of 7-15%, stirring once every 15-25 min, and then repeatedly cleaning for 3-5 times by using deionized water;
3) respectively carrying out ultrasonic treatment on the titanium sheet etched in the step 2) in an acetone solution and an ethanol solution for 15-30 min, carrying out ultrasonic treatment in deionized water for 25-40 min, taking out the titanium sheet after ultrasonic treatment, and drying the titanium sheet in a drying oven at 50-70 ℃ for 7-9 h;
4) uniformly mixing 4-6 g of urea and melamine, placing the mixture in a muffle furnace, wherein the urea content is 35% -45%, the calcination temperature is 520-600 ℃, the calcination time is 3-4 h, after the calcination is finished, cooling the mixture to room temperature, and taking out a sample, namely C3N4Grinding into powder for later use;
5) preparing 80-100 mL (1mmol/L) of Pb (NO)3)2The solution is slowly mixed with 1-5 g/L of C3N4Adding Pb (NO)3)2In solution, make C3N4Present in suspension in solution;
6) adopting a double-electrode system, respectively taking two processed titanium sheets as a cathode and an anode, taking the solution prepared in the step 5) as a supporting electrolyte, and applying 3-6 mA/cm to the electrodes through an adjustable direct current voltage-stabilizing power supply2The constant current density is 25-35 min, the deposition time is 65-70 ℃, and after the deposition is finished, the anode is washed by deionized water for 3-5 times to obtain PbO2/C3N4And an anode electrode.
Further, the substrate in step 1) of the present invention may also be a nickel foil or a zinc or tin sheet.
Further, the shape of the substrate in step 1) of the present invention may be square or triangular or circular.
Further, PbO in step 6) of the present invention2The electrodes can also be made using a pulsed current process or a thermal oxidation process or a hydrolysis process.
Further, PbO in step 6) of the present invention2/C3N4The electrodes can also be produced using a hydrothermal method or a vapor deposition method or a coating method.
Use of a photoanode material according to claim 1, wherein PbO is added2/C3N4The anode electrode and the titanium sheet are respectively used as an anode and a cathode, and the concentration of Na is 0.1-0.2mol/L2SO4The solution is used as a supporting electrolyte until the printing and dyeing wastewater is degraded to be colorless and transparent.
And after the printing and dyeing wastewater is degraded, sampling by using an ultraviolet spectrophotometer to test the degradation degree of the wastewater.
PbO in the photoanode material prepared by the invention2/C3N4The nanowires are firmly combined with the matrix and are uniformly distributed, the cost is low, and the effect of degrading printing and dyeing wastewater is good. The invention is in PbO2Introduction of C into the coating3N4Changes the appearance, surface hydrophilicity and hydrophobicity of the electrode, promotes an electrochemical active region and generates efficient hydroxyl radicals. In addition, in PbO2Introduction of C into the coating3N4Can improve PbO2The oxygen evolution capacity and the carrier density of the PbO2 are further improved, and an obvious photoelectric synergistic effect exists in the photoelectrocatalysis process, namely the PbO with surface hydrophobicity combined with photoelectrocatalysis2/C3N4The photo-anode material has good effect of degrading printing and dyeing wastewater.
Drawings
FIG. 1 is PbO2A Scanning Electron Microscope (SEM) image of the electrode;
FIG. 2 is C3N4A Scanning Electron Microscope (SEM) image of the electrode;
FIG. 3 is PbO2/C3N4Scanning electron of electrodeMicroscope (SEM) images;
FIG. 4 shows different ratios of PbO2/C3N4Degradation rate profile of the electrode.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In order to make the objects, schemes, procedures and advantages of the present invention more clear, the present invention is further described in detail with reference to the embodiments, it should be noted that the specific embodiments are only used for explaining the present invention and not for limiting the present invention. For example, PbO2The preparation process of the electrode also comprises a pulse current method, a heating oxidation method, a hydrolysis method and PbO2/C3N4The preparation process of the electrode also comprises a hydrothermal method, a vapor deposition method and a coating method.
In the following examples, unless otherwise specified, the experimental procedures used were all conventional, the titanium sheets were obtained from titanium processing factory of Baoji, and the reagents were obtained from chemical reagents of Kemiou, Tianjin.
Example 1
A preparation method of carbon nitride modified lead dioxide as a photo-anode material comprises the following steps:
s1: cutting a titanium plate (with the purity of 99.7%) with the thickness of 1mm into a rectangular titanium sheet with the size of 70mm multiplied by 10mm multiplied by 1mm by using an aviation shear, using the rectangular titanium sheet as a substrate, and then washing the rectangular titanium sheet with deionized water for 5 times;
s2: etching the titanium sheet cleaned in the step S1 for 2h under the conditions of water bath 80 ℃ and 10% oxalic acid solution, stirring once every 20min, and then repeatedly cleaning for 5 times by using deionized water;
s3: carrying out ultrasonic treatment on the titanium sheet etched in the step S2 in acetone solution, ethanol solution and deionized water for 30min, taking out the titanium sheet after ultrasonic treatment, and drying the titanium sheet in a 60 ℃ drying oven for 8 h;
s4: uniformly mixing 5g of urea and melamine, placing the mixture in a muffle furnace, wherein the urea content is 40%, the calcination temperature is 520 ℃, the calcination time is 4h, and after the calcination is finished, cooling the mixture to room temperatureTaking out the sample, namely C3N4Grinding into powder for later use;
s5: 100mL (1mmol/L) of Pb (NO) was prepared3)2Then slowly adding 1g/L of C3N4Adding Pb (NO)3)2In solution, make C3N4Present in suspension in solution;
s6: adopting a double-electrode system, respectively using two processed titanium sheets as a cathode and an anode, using the solution described in S5 as a supporting electrolyte, and applying 5mA/cm to the electrodes by an adjustable DC voltage-stabilizing power supply2Constant current density of (2). The deposition time was 30min and the temperature 65 ℃. Washing the anode with deionized water for 5 times after deposition to obtain PbO2/C3N4An anode material.
Example 2
A preparation method of carbon nitride modified lead dioxide as a photo-anode material comprises the following steps:
s1: cutting a titanium plate (with the purity of 99.7%) with the thickness of 1mm into a rectangular titanium sheet with the size of 70mm multiplied by 10mm multiplied by 1mm by using an aviation shear, using the rectangular titanium sheet as a substrate, and then washing the rectangular titanium sheet with deionized water for 5 times;
s2: etching the titanium sheet cleaned in the step S1 for 2h under the conditions of water bath 80 ℃ and 10% oxalic acid solution, stirring once every 20min, and then repeatedly cleaning for 5 times by using deionized water;
s3: carrying out ultrasonic treatment on the titanium sheet etched in the step S2 in acetone solution, ethanol solution and deionized water for 30min, taking out the titanium sheet after ultrasonic treatment, and drying the titanium sheet in a 60 ℃ drying oven for 8 h;
s4: uniformly mixing 5g of urea and melamine, placing the mixture in a muffle furnace, wherein the urea content is 40%, the calcination temperature is 520 ℃, the calcination time is 4 hours, after the calcination is finished, cooling the mixture to room temperature, and taking out a sample, namely C3N4Grinding into powder for later use;
s5: 100mL (1mmol/L) of Pb (NO) was prepared3)2Then slowly adding 5g/L of C3N4Adding Pb (NO)3)2In solution, make C3N4Present in suspension in solution;
s6: adopting a double-electrode system, respectively using two processed titanium sheets as a cathode and an anode, using the solution described in S5 as a supporting electrolyte, and applying 5mA/cm to the electrodes by an adjustable DC voltage-stabilizing power supply2Constant current density of (2). The deposition time was 30min and the temperature 65 ℃. Washing the anode with deionized water for 5 times after deposition to obtain PbO2/C3N4An anode material.
Experimental example 1
The carbon nitride modified lead dioxide prepared in example 2 was used as a photoanode material and observed by a Scanning Electron Microscope (SEM):
firstly, cutting a sample into a size of 5 multiplied by 5mm, pasting the sample on a test disc by using a conductive adhesive tape, spraying a layer of gold, putting the sample into a test groove, vacuumizing, and starting testing. The electrode surface was observed using a scanning electron microscope (Hitachi, Japan) of type Hitachi-1510.
As shown in FIG. 1, the observation result by a Scanning Electron Microscope (SEM) showed C3N4In a lamellar form, PbO2The electrodes present a massive and uneven rock structure. PbO2/C3N4The electrodes exhibit a rock-like structure similar to that of PbO2Electrode phase comparison, PbO2/C3N4Tend to be smaller and more compact and therefore have a greater specific surface area, the adsorption effect being better for the same mass.
Experimental example 2
Experiments of the carbon nitride modified lead dioxide prepared in example 1 and example 2 as the photoanode material to degrade reactive brilliant blue (KN-R):
the PEC activity of the electrodes was evaluated by removing the anthraquinone dye (reactive Brilliant blue KN-R) solution at a concentration of 60mg/L in a quartz reactor. 250mL of a solution containing 0.1mol/LNa2SO4The solution of (a) serves as a supporting electrolyte. Preparation of C3N4Modified PbO2The electrode sample and the titanium sheet were used as an anode and a cathode, respectively. The anode and cathode were placed vertically and parallel to each other at a distance of 30 mm. Before the experiment, the reaction solution was kept in blackStirring for 30min using a magnetic stirrer in the dark until an adsorption-desorption equilibrium is established between the dye and the finished electrode. Using a DC power supply (constant current density of 30mA cm)-2) PEC oxidation experiments were performed. A175W xenon lamp (used to simulate sunlight) was used for illumination, and the reaction vessel was cooled with a circulating water jacket (the xenon lamp was placed in the jacket). During the experiment, samples were withdrawn from the reactor every 20min for detection and analysis.
The results of the experiment are shown in FIG. 2. Lead dioxide-carbon nitrides-1 to-5 are each C in step S5 of example 13N4The concentration of (A) is 1g/L to 5g/L, and C can be clearly seen in the figure3N4The adsorption rate and the degradation rate are the best when the concentration of the compound is 4g/L, and the degradation rate after 2 hours of illumination can reach 84.3 percent. And it can be seen from the curves that the degradation continues with the increase of time, compared with the PbO alone2The degradation rate of the electrode 2h is much higher than 61.3%.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (6)

1. A preparation method of a photo-anode material is characterized by comprising the following steps:
1) cutting a titanium plate with the purity of 99.7% and the thickness of 0.5-2 mm into a rectangular titanium sheet with the length of 60-80 mm, the width of 5-15 mm and the thickness of 0.5-2 mm by using an aviation shear, using the rectangular titanium sheet as a matrix, and then washing with deionized water for 3-5 times;
2) etching the titanium sheet cleaned in the step 1) for 1-3 hours in an oxalic acid solution with the water bath temperature of 75-85 ℃ and the concentration of 7-15%, stirring once every 15-25 min, and then repeatedly cleaning for 3-5 times by using deionized water;
3) respectively carrying out ultrasonic treatment on the titanium sheet etched in the step 2) in an acetone solution and an ethanol solution for 15-30 min, carrying out ultrasonic treatment in deionized water for 25-40 min, taking out the titanium sheet after ultrasonic treatment, and drying the titanium sheet in a drying oven at 50-70 ℃ for 7-9 h;
4) uniformly mixing 4-6 g of urea and melamine, placing the mixture in a muffle furnace, wherein the urea content is 35% -45%, the calcination temperature is 520-600 ℃, the calcination time is 3-4 h, after the calcination is finished, cooling the mixture to room temperature, and taking out a sample, namely C3N4Grinding into powder for later use;
5) preparing 80-100 mL (1mmol/L) of Pb (NO)3)2The solution is slowly mixed with 1-5 g/L of C3N4Adding Pb (NO)3)2In solution, make C3N4Present in suspension in solution;
6) adopting a double-electrode system, respectively taking two processed titanium sheets as a cathode and an anode, taking the solution prepared in the step 5) as a supporting electrolyte, and applying 3-6 mA/cm to the electrodes through an adjustable direct current voltage-stabilizing power supply2The constant current density is 25-35 min, the deposition time is 65-70 ℃, and after the deposition is finished, the anode is washed by deionized water for 3-5 times to obtain PbO2/C3N4And an anode electrode.
2. The method of claim 1, wherein the substrate in step 1) is a nickel foil or a zinc or tin sheet.
3. The method of claim 1, wherein the shape of the substrate in step 1) is square, triangular or circular.
4. A method for preparing a photoanode material as claimed in claim 1, wherein the PbO of step 6)2The electrodes can also be made using a pulsed current process or a thermal oxidation process or a hydrolysis process.
5. A method for preparing a photoanode material as claimed in claim 1, wherein the PbO of step 6)2/C3N4The electrodes can also be applied by hydrothermal or vapor depositionPrepared by a method or a coating method.
6. Use of a photoanode material according to claim 1, wherein PbO is added2/C3N4The anode electrode and the titanium sheet are respectively used as an anode and a cathode, and the concentration of Na is 0.1-0.2mol/L2SO4The solution is used as a supporting electrolyte until the printing and dyeing wastewater is degraded to be colorless and transparent.
CN202010472459.7A 2020-05-29 2020-05-29 Preparation method and application of photo-anode material Pending CN111573789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010472459.7A CN111573789A (en) 2020-05-29 2020-05-29 Preparation method and application of photo-anode material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010472459.7A CN111573789A (en) 2020-05-29 2020-05-29 Preparation method and application of photo-anode material

Publications (1)

Publication Number Publication Date
CN111573789A true CN111573789A (en) 2020-08-25

Family

ID=72125687

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010472459.7A Pending CN111573789A (en) 2020-05-29 2020-05-29 Preparation method and application of photo-anode material

Country Status (1)

Country Link
CN (1) CN111573789A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090263647A1 (en) * 2008-03-25 2009-10-22 The Curators Of The University Of Missouri Nanocomposite dielectric coatings
CN105668718A (en) * 2016-04-12 2016-06-15 上海应用技术学院 Preparation method of boron carbide/graphite co-doped lead dioxide plastic piece electrode
CN110902777A (en) * 2019-11-26 2020-03-24 大连工业大学 Preparation method of anion-doped cobalt-based photo-anode material
CN110898822A (en) * 2019-11-26 2020-03-24 大连工业大学 Preparation method of black titanium dioxide nanowire network photo-anode material
US20200127279A1 (en) * 2018-10-18 2020-04-23 UTI Limited Parternship Electrochemically Exfoliated Phosphated Graphene

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090263647A1 (en) * 2008-03-25 2009-10-22 The Curators Of The University Of Missouri Nanocomposite dielectric coatings
CN105668718A (en) * 2016-04-12 2016-06-15 上海应用技术学院 Preparation method of boron carbide/graphite co-doped lead dioxide plastic piece electrode
US20200127279A1 (en) * 2018-10-18 2020-04-23 UTI Limited Parternship Electrochemically Exfoliated Phosphated Graphene
CN110902777A (en) * 2019-11-26 2020-03-24 大连工业大学 Preparation method of anion-doped cobalt-based photo-anode material
CN110898822A (en) * 2019-11-26 2020-03-24 大连工业大学 Preparation method of black titanium dioxide nanowire network photo-anode material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WENFENG LI等: "Fabrication and photoelectrocatalytic performance of C3N4-modified Ti/PbO2 anode with surface hydrophobicity", 《JOURNAL OF SOLID STATE ELECTROCHEMISTRY》 *

Similar Documents

Publication Publication Date Title
Morisaki et al. Photoelectrolysis of water with TiO2‐covered solar‐cell electrodes
Cerro-Lopez et al. Formation and growth of PbO2 inside TiO2 nanotubes for environmental applications
CN110273165A (en) A kind of method that lower temperature plasma technology prepares oxygen defect type bismuth tungstate optoelectronic pole
CN109569684A (en) Plasma modification metal oxide and the co-modified titanium dioxide nano-rod composite photo-catalyst of g- carbonitride and its preparation and application
CN103014755A (en) Fabrication method of long-life titanium base electrode
CN110241439B (en) Plasma treatment for preparing surface hydroxylation WO3Method for preparing thin film photoelectrode material
CN104313663B (en) A kind of N, Ti3+The visible light catalytic TiO of codope2The preparation method of nano-tube array
CN110272100A (en) Ti4O7Preparation method of ceramic microfiltration membrane electrode of coating
CN110965073B (en) WO containing defects3Preparation method of photoelectrode
CN111424301B (en) Pulse potential mode for improving CuO photoelectrocatalysis CO2Method for conversion efficiency
CN114808013B (en) Tungsten trioxide/manganese tungstate/cobalt tungstate photoelectrode material and preparation method and application thereof
CN109160594A (en) Plate-load catalysis material microbiological fuel cell and the preparation method and application thereof
Huang et al. The effect of the photochemical environment on photoanodes for photoelectrochemical water splitting
CN101396651B (en) Nano phototranslating composite film in order structure and preparation method thereof
CN110205638A (en) A kind of Z-type CuBi2O4/SnO2Photocathode film and its preparation method and application
CN109133259A (en) A method of utilizing light anode activation sulfuric acid salt treatment waste water and by-product hydrogen
CN109972149B (en) Bi2Te3/Bi2O3/TiO2Preparation method of ternary heterojunction film
CN109701511B (en) Preparation method of titanium oxide with fractal structure
WO2014175507A1 (en) Manufacturing method of titanium oxide electrode, active oxygen species production system including same, chlorine production system, dye-sensitised solar cell and electric double-layer capacitor
CN111573789A (en) Preparation method and application of photo-anode material
CN111003760A (en) Preparation method of photoelectrocatalysis anode material with TNTs as substrate
CN109574153B (en) Synchronous efficient coupling process for reducing chlorophenol by cathode and oxidizing phenol by anode
WO2022188503A1 (en) Photogenerated anti-corrosion electrode material and preparation method and application thereof
CN111763954A (en) Lamellar WO3Preparation method of photo-anode material and application of photo-anode material in photoelectrocatalysis
CN110002547A (en) A kind of the ruthenium Zirconium oxide electrode and its PhotoelectrocatalytiPerformance Performance of sol-gal process preparation

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20200825