CN113149156A - Preparation method of titanium suboxide DSA anode - Google Patents
Preparation method of titanium suboxide DSA anode Download PDFInfo
- Publication number
- CN113149156A CN113149156A CN202110632009.4A CN202110632009A CN113149156A CN 113149156 A CN113149156 A CN 113149156A CN 202110632009 A CN202110632009 A CN 202110632009A CN 113149156 A CN113149156 A CN 113149156A
- Authority
- CN
- China
- Prior art keywords
- titanium
- titanium suboxide
- suboxide
- dsa anode
- plasma spraying
- Prior art date
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000010936 titanium Substances 0.000 title claims abstract description 68
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000007750 plasma spraying Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 5
- 238000010306 acid treatment Methods 0.000 claims description 4
- 238000005488 sandblasting Methods 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000010405 anode material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
-
- 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
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to a preparation method of a titanium suboxide DSA anode, which takes a titanium material as a carrier, adopts a high-temperature plasma spraying method to load titanium suboxide on a titanium electrode to form the titanium suboxide DSA anode.
Description
Technical Field
The invention belongs to the technical field of water treatment, and relates to a preparation method and application of a titanium dioxide DSA anode.
Background
The electrocatalytic oxidation technology is a novel advanced oxidation technology, and decomposes and removes organic matters in water by utilizing the direct catalytic oxidation performance of an electrocatalytic anode material and strong oxidative hydroxyl radicals generated in the electrocatalytic process. However, the electrocatalytic anode material is the key for realizing high-efficiency electrocatalytic oxidation, and the preparation cost of the commercial electrocatalytic anode is higher at present, so that the development of the electrocatalytic anode material with low cost and high efficiency is the key for realizing the wide application of the electrocatalytic oxidation technology. In recent years, great researchers at home and abroad strive to obtain an electrocatalytic anode with high efficiency and high potential window by various meansMaterials, e.g. BDD electrodes, Sb-SnO2Electrode, PbO2However, the electrodes still face the defects of high manufacturing cost, difficulty in large-scale production, secondary toxic pollution and the like, and the engineering application of the electrodes is limited.
Disclosure of Invention
The invention aims to provide a preparation method and application of a titanium suboxide DSA anode.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a preparation method of a titanium suboxide DSA anode is characterized in that titanium is used as a carrier, a high-temperature plasma spraying method is adopted to load titanium suboxide on a titanium electrode to form the titanium suboxide DSA anode, and the specific operation is carried out according to the following steps:
a. placing plasma spraying equipment into a plasma spraying room, and placing titanium suboxide powder into a powder feeder of the plasma spraying equipment;
b. setting working voltage and working current of the spray gun;
c. putting a titanium carrier into the plasma spraying room;
d. setting a spraying program, controlling the spraying times, and spraying to obtain the titanium suboxide DSA anode.
Preferably, the dosage of the titanium suboxide powder is 3kg, the working voltage of the spray gun is 20-85V, the working current is 200-800A, and the spraying times are 1-20 times.
Preferably, the titanium support is a titanium plate, a titanium mesh or porous titanium.
Preferably, the titanium support is sand blasted, acid treated and washed prior to spraying titanium suboxide on the surface of the titanium support.
Preferably, the thickness of the titanium suboxide obtained in the step d on the DSA anode surface is 10-200 microns.
The titanium suboxide DSA anode prepared by the method can be used for removing COD and ammonia nitrogen in sewage.
In step b, the titanium carrier is titanium plate, titanium net or porous titanium.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the invention prepares the metal monoatomic electro-catalytic electrode material by taking the surface oxygen defect of the titanium suboxide as an active site through an in-situ pulse electro-reduction method, realizes the monoatomic dispersion and fixation of metal atoms by utilizing the defect site, and obtains the titanium suboxide DSA anode with high activity and high stability.
2. According to the invention, the thickness of the titanium suboxide layer of the electrode is controlled, so that the efficiency of removing COD and ammonia nitrogen in sewage by electrocatalysis can be increased, and the stability of the electrode is enhanced by utilizing the oxygen defect effect of titanium suboxide.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
a. Placing plasma spraying equipment into a plasma spraying room, and placing 3kg of titanium suboxide into a powder feeder of the plasma spraying equipment;
b. setting the working voltage of the spray gun to be 20V and the working current to be 200A;
c. after sand blasting, acid treatment and washing, the titanium plate is placed into a plasma spraying room;
d. and setting a spraying program, controlling the spraying times to be 5 times, and spraying to obtain the titanium suboxide DSA anode, wherein the thickness of the titanium suboxide is 50 microns.
Example 2
a. Placing plasma spraying equipment into a plasma spraying room, and placing 3kg of titanium suboxide into a powder feeder of the plasma spraying equipment;
b. setting the working voltage of the spray gun to be 40V and the working current to be 400A;
c. b, placing the titanium plate in the step b into a plasma spraying room after sand blasting, acid treatment and washing;
d. and setting a spraying program, controlling the spraying times to be 8 times, and spraying to obtain the titanium suboxide DSA anode, wherein the thickness of the titanium suboxide is 80 microns.
Example 3
a. Placing plasma spraying equipment into a plasma spraying room, and placing 3kg of titanium suboxide into a powder feeder of the plasma spraying equipment;
b. setting the working voltage of the spray gun to be 85V and the working current to be 800A;
c. b, placing the titanium plate in the step b into a plasma spraying room after sand blasting, acid treatment and washing;
d. and setting a spraying program, controlling the spraying times to be 20 times, and spraying to obtain the titanium suboxide DSA anode, wherein the thickness of the titanium suboxide is 200 microns.
Example 4
a. The titanium suboxide DSA anode prepared in the example 1 and a stainless steel cathode are alternately placed in an electrocatalytic oxidation reaction device for treating printing and dyeing wastewater;
b. b, introducing a water sample to be treated with COD of 500mg/L and ammonia nitrogen of 25mg/L into the electrocatalytic oxidation reaction device in the step a;
c. b, introducing current into the electrocatalytic oxidation reaction device in the step a, wherein the current is 1000A, the voltage is 5V, and the retention time is 1 hour;
d. b, collecting an effluent water sample after the electrocatalytic oxidation reaction device in the step a continuously operates for one hour, and determining the COD of the effluent water;
e. the COD value of the effluent is less than 50mg/L, and the ammonia nitrogen is less than 2mg/L, namely, the effluent reaches the first level A of the sewage comprehensive discharge standard.
Claims (6)
1. A preparation method of a titanium suboxide DSA anode is characterized in that titanium is used as a carrier, a high-temperature plasma spraying method is adopted to load titanium suboxide on a titanium electrode to form the titanium suboxide DSA anode, and the specific operation is carried out according to the following steps:
a. placing plasma spraying equipment into a plasma spraying room, and placing titanium suboxide powder into a powder feeder of the plasma spraying equipment;
b. setting working voltage and working current of the spray gun;
c. putting a titanium carrier into the plasma spraying room;
d. setting a spraying program, controlling the spraying times, and spraying to obtain the titanium suboxide DSA anode.
2. The method for preparing the titanium suboxide DSA anode of claim 1, wherein the amount of the titanium suboxide powder is 3kg, the operating voltage of the spray gun is 20-85V, the operating current is 200-800A, and the spraying times are 1-20.
3. The method for preparing a titanium suboxide DSA anode according to claim 1, wherein the titanium support is a titanium plate, a titanium mesh or porous titanium.
4. The method for preparing titanium suboxide DSA anode according to claim 1, wherein the titanium carrier is subjected to sand blasting, acid treatment and washing before the titanium suboxide is sprayed on the surface of the titanium carrier.
5. The method for preparing titanium suboxide DSA anode of claim 1, wherein the thickness of titanium suboxide on the surface of the titanium suboxide DSA anode obtained in step d is 10-200 μm.
6. Use of the titanium suboxide DSA anode prepared according to the claim 1 for removing COD and ammonia nitrogen in sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110632009.4A CN113149156A (en) | 2021-06-07 | 2021-06-07 | Preparation method of titanium suboxide DSA anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110632009.4A CN113149156A (en) | 2021-06-07 | 2021-06-07 | Preparation method of titanium suboxide DSA anode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113149156A true CN113149156A (en) | 2021-07-23 |
Family
ID=76875812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110632009.4A Pending CN113149156A (en) | 2021-06-07 | 2021-06-07 | Preparation method of titanium suboxide DSA anode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113149156A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249466A (en) * | 2021-12-07 | 2022-03-29 | 哈尔滨工业大学 | Electrocatalytic oxidation combined forward osmosis treatment method for reverse osmosis concentrated water in coal chemical industry |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4422917A (en) * | 1980-09-10 | 1983-12-27 | Imi Marston Limited | Electrode material, electrode and electrochemical cell |
| CN104591342A (en) * | 2014-11-10 | 2015-05-06 | 牛军峰 | Preparation method of Ti/Ebonex/PbO2 electrode for sewage deep-treatment |
| CN105297073A (en) * | 2015-10-30 | 2016-02-03 | 昆明理工大学 | Preparation method of copper-based titanium black electrode plate |
| CN105967281A (en) * | 2016-06-16 | 2016-09-28 | 中国船舶重工集团公司第七二五研究所 | Preparing method for titanium-based titanium sub-oxide electrode |
| CN110316917A (en) * | 2019-07-01 | 2019-10-11 | 任丘市谛赛驷环保科技有限公司 | A kind of preparation method for the advanced oxidation system handling oily sludge |
| CN112064084A (en) * | 2020-08-06 | 2020-12-11 | 陕西科技大学 | Preparation method of metal monoatomic titanium suboxide electrode |
-
2021
- 2021-06-07 CN CN202110632009.4A patent/CN113149156A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4422917A (en) * | 1980-09-10 | 1983-12-27 | Imi Marston Limited | Electrode material, electrode and electrochemical cell |
| CN104591342A (en) * | 2014-11-10 | 2015-05-06 | 牛军峰 | Preparation method of Ti/Ebonex/PbO2 electrode for sewage deep-treatment |
| CN105297073A (en) * | 2015-10-30 | 2016-02-03 | 昆明理工大学 | Preparation method of copper-based titanium black electrode plate |
| CN105967281A (en) * | 2016-06-16 | 2016-09-28 | 中国船舶重工集团公司第七二五研究所 | Preparing method for titanium-based titanium sub-oxide electrode |
| CN110316917A (en) * | 2019-07-01 | 2019-10-11 | 任丘市谛赛驷环保科技有限公司 | A kind of preparation method for the advanced oxidation system handling oily sludge |
| CN112064084A (en) * | 2020-08-06 | 2020-12-11 | 陕西科技大学 | Preparation method of metal monoatomic titanium suboxide electrode |
Non-Patent Citations (2)
| Title |
|---|
| 智丹: "Ti/Ti4O7阳极电化学氧化降解水中的美托洛尔", 环境科学学报, pages 1858 - 1867 * |
| 袁晓静: "特种润滑涂层构建理论与技术", 国防工业出版社, pages: 131 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249466A (en) * | 2021-12-07 | 2022-03-29 | 哈尔滨工业大学 | Electrocatalytic oxidation combined forward osmosis treatment method for reverse osmosis concentrated water in coal chemical industry |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210723 |