CN105819502A - Preparation method of ultrathin B phase titanium dioxide nano sheet - Google Patents
Preparation method of ultrathin B phase titanium dioxide nano sheet Download PDFInfo
- Publication number
- CN105819502A CN105819502A CN201610156781.2A CN201610156781A CN105819502A CN 105819502 A CN105819502 A CN 105819502A CN 201610156781 A CN201610156781 A CN 201610156781A CN 105819502 A CN105819502 A CN 105819502A
- Authority
- CN
- China
- Prior art keywords
- titanium dioxide
- preparation
- nano sheet
- dioxide nano
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
- C01G23/0536—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing chloride-containing salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
Abstract
The invention discloses a preparation method of an ultrathin B phase titanium dioxide nano sheet, and relates to the field of titanium dioxide. The preparation method comprises the following steps: (1) adding a titanium precursor into glycol, and stirring to obtain a glycol-titanium solution; (2) adding water into the glycol-titanium solution obtained in the step (1), stirring, carrying out reactions at a temperature of 150 to 180 DEG C, and subjecting the obtained turbid liquid to centrifugation so as to obtain white precipitate; (3) washing the white precipitate obtained in the step (2), and drying white precipitate in the air to obtain the ultrathin B phase titanium dioxide nano sheet. The preparation method has the advantages that the raw materials are cheap, little sulfuric acid is used, the output of waste byproducts is little; the reaction temperature is mild and is far lower than the boiling point of glycol; the reaction pressure is not high and thus is benefit for amplification operation; the thickness of the prepared ultrathin titanium dioxide nano sheet is less than 2 nm, the nano sheet appears typical characteristics of a two-dimensional material; the operability is strong, the reaction apparatus is simple, the synthesis and post treatment conditions are mild, the conditions during the preparation process are mild, the reaction process is clean and pollution-free, and the reaction efficiency is high.
Description
Technical field
The present invention relates to titanium dioxide, especially relate to the preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet.
Background technology
Titanium dioxide, is commonly called as titanium valve, titanium white, is a kind of important inorganic chemical product.Owing to titanium dioxide is in the important use of the industrial circles such as photocatalysis, coating, plastics, papermaking, synthetic fibers, printing-ink, rubber, enamel, its consumption figure has become economist for weighing one of outstanding feature of a national living standard.World's titanium dioxide yield development is the rapidest, and nineteen twenty is only 1kt, and nineteen twenty-five is 5kt, since occurring in that rutile-type commodity titanium dioxide, within 1974, has reached 2.5Mt on nineteen forty-one American market.Thereafter, owing to being affected by the factor such as the energy and environmental protection, yield declines.Since 1984, international titanium dioxide occurs in that the situation that supply falls short of demand.
Along with basic research is to the most deep concern of the nanostructured of the man-made assembly synthesis such as nano material, Nanoscale assemblies system, nano material the most largely can design according to the wish of people, assemble, become new system, makes these systems more on purpose have desirable characteristic.Nano titanium oxide such a system just, due to its transparency and the high unity of absorption ultraviolet function, make it once appearance, just at functional film, sun-generated electric power, structural ceramics, function ceramics, anti-aging rubber, function paint, photocatalytic degradation agent, anti-biotic material, the cosmetics industry etc. of keeping a public place clean field cause extensive concern.In the market of nano material increases, 0 dimension-3-dimensional structure technology, extra accuracy process technology, ultrathin membrane production technology, the most market growth potential of the product manufactured by transversary technology.
The production of titanium dioxide belongs to highly technology-intensive type, and production difficulty is big.The most only more than 20 company of country about 40 produces, and wherein the production capacity of 80%～85% concentrates on West Europe, North America and Japan.The industrialized production of China's titanium dioxide starts from the 1950's, currently mainly uses Production By Sulfuric Acid Process anatase titanium dioxide and a small amount of rutile titanium dioxide, and its major defect is that sulfuric acid dosage substandard goods yield big, useless is high.And there is the shortcomings such as energy consumption is high, pollution is big in the method that the chloridising that the world is commonly used prepares titanium dioxide.
Summary of the invention
It is an object of the invention to provide that use raw material is easy to get, step is easy, the preparation method of the less a kind of ultra-thin B phase titanium dioxide nano sheet of energy consumption.
The present invention comprises the following steps:
1) presoma of titanium is added in ethylene glycol, after stirring, obtain titanium ethylene glycolate solution；
2) in step 1) the titanium ethylene glycolate solution that obtains adds water, after stirring, gained solution is reacted at 150～180 DEG C, then the suspension of gained is centrifuged, obtains white precipitate；
3) by step 2) washing of gained white precipitate, dry, obtain ultra-thin B phase titanium dioxide nano sheet.
In step 1) in, the presoma of described titanium can use titanium tetrachloride；Described stirring can be stirred to solution clarification without precipitation；The presoma of described titanium and the volume ratio of ethylene glycol can be 1: (10～50).
In step 2) in, described titanium ethylene glycolate solution can be (10～50) with the volume ratio of water: 1；The time of described stirring can be 10～30min；Described reaction can be reacted in reactor or flask, and the time of reaction can be 4～12h.
In step 3) in, described washing can be successively by water and washing with alcohol at least 1 time.
B phase titanic oxide is different from common Rutile Type, Anatase and brookite, is a kind of metastable titanium dioxide, and it has open microcellular structure, therefore has the specific surface area bigger than other nanometer titanium dioxide titanium products.The most still there is no the report of a large amount of synthesis of titanium dioxide B phase at present.It addition, the ultra-thin titanium dioxide nanosheet of present invention synthesis is typical two-dimensional structure material, there is ultra-thin construction features, it can thus be anticipated that it has higher value and market prospect in commercial production such as optical, electrical, catalysis.
The present invention utilizes titanium tetrachloride as titanium source, and pre-synthesis intermediate titanium ethylene glycolate under the effect of ethylene glycol, recycling solvent thermal reaction makes it hydrolyze in acid condition, thus obtains ultra-thin B phase titanium dioxide nano sheet.The present invention uses raw material to be easy to get, and step is easy, and energy consumption is less.
The present invention is by just obtaining ultra-thin B phase titanium dioxide nano sheet to the solvent heat treatment of titanium ethylene glycolate.Relative to the method for existing industrially prepared titanium dioxide, the invention has the advantages that:
(1) present invention can synthesize B phase titanic oxide.Being different from common Rutile Type, Anatase and brookite, B phase titanic oxide has the microcellular structure of abundant opening so that it is have bigger specific surface area.
(2) use cheap titanium tetrachloride and ethylene glycol as raw material.Compared with traditional sulfuric acid process, the present invention need not use in a large number sulphuric acid, and useless substandard goods yield is few.
(3) present invention can select relatively mild reaction temperature, and far below the boiling point of ethylene glycol, reaction pressure is little, beneficially amplifieroperation.
(4) ultra-thin titanium dioxide nanosheet prepared by the present invention, its thickness is in 2nm, and presents typical two-dimensional material character, has good using value.
(5) present invention is workable, and reaction unit is simple, and synthesis is gentle with post-treatment condition, preparation process mild condition, course of reaction cleanliness without any pollution, and reaction efficiency is high, and comparing other synthetic methods has good commercial synthesis prospect.
Accompanying drawing explanation
Fig. 1 is the transmission electron microscope figure of the ultra-thin titanium dioxide of gained.
Fig. 2 is that the powder X-ray of the ultra-thin titanium dioxide of gained is accused of diffraction pattern.Show the B phase structure of its uniqueness.
Fig. 3 is the nitrogen adsorption curve of the ultra-thin titanium dioxide of gained.
Fig. 4 is surface charge and the pH value of solution relation of the ultra-thin titanium dioxide of gained.
Detailed description of the invention
The invention will be further described to combine accompanying drawing below by embodiment.
Embodiment 1
(1) in uncovered beaker, 1mL titanium tetrachloride is added in 30mL ethylene glycol, after stirring 10min, obtain titanium ethylene glycolate solution.
(2) 1mL water is added in step (1) made titanium ethylene glycolate solution, after stirring 10min, gained solution is transferred in reactor, at 150 DEG C, then react 4h, then the suspension of gained is centrifuged.
(3) by step (2) gained white precipitate water and washing with alcohol 3 times, target product after the most naturally drying, is i.e. obtained.
As seen from Figure 1, prepared ultra-thin titanium dioxide is typical two-dimensional material structure.As seen from Figure 2, the powder X-ray of the ultra-thin titanium dioxide of gained is accused of diffraction pattern and is shown the B phase structure of its uniqueness.Nitrogen adsorption curve (Fig. 3) based on ultra-thin titanium dioxide, it can be seen that ultra-thin titanium dioxide has the absorption behavior of typical poromerics, the specific surface area that be can be calculated ultra-thin titanium dioxide by BET method is 340m2/ g, and mesoporous content shows that product is substantially ultra-thin flaky nanometer structure at least.Surface charge shown in Fig. 4 show obtained titanium dioxide nanoplate isoelectric point, IP about 8.6, positively charged in neutral aqueous solution.
Embodiment 2
(1) in uncovered beaker, 3mL titanium tetrachloride is added in 30mL ethylene glycol, after stirring 10min, obtain titanium ethylene glycolate solution.
(2) 3mL water is added in step (1) made titanium ethylene glycolate solution, after stirring 10min, gained solution is transferred in flask, at 150 DEG C, then react 4h, then the suspension of gained is centrifuged.
(3) by step (2) gained white precipitate water and washing with alcohol 3 times, target product after the most naturally drying, is i.e. obtained.
Embodiment 3
(1) in uncovered beaker, 1mL titanium tetrachloride is added in 30mL ethylene glycol, after stirring 10min, obtain titanium ethylene glycolate solution.
(2) 1mL water is added in step (1) made titanium ethylene glycolate solution, after stirring 10min, gained solution is transferred in flask, at 160 DEG C, then react 4h, then the suspension of gained is centrifuged.
(3) by step (2) gained white precipitate water and washing with alcohol 3 times, target product after the most naturally drying, is i.e. obtained.
Embodiment 4
(1) in uncovered beaker, 1mL titanium tetrachloride is added in 30mL ethylene glycol, after stirring 10min, obtain titanium ethylene glycolate solution.
(2) 1mL water is added in step (1) made titanium ethylene glycolate solution, after stirring 10min, gained solution is transferred in flask, at 180 DEG C, then react 4h, then the suspension of gained is centrifuged.
(3) by step (2) gained white precipitate water and washing with alcohol 3 times, target product after the most naturally drying, is i.e. obtained.
Embodiment 5
(1) in uncovered beaker, 5mL titanium tetrachloride is added in 30mL ethylene glycol, after stirring 10min, obtain titanium ethylene glycolate solution.
(2) 5mL water is added in step (1) made titanium ethylene glycolate solution, after stirring 10min, gained solution is transferred in flask, at 150 DEG C, then react 4h, then the suspension of gained is centrifuged.
(3) by step (2) gained white precipitate water and washing with alcohol 3 times, target product after the most naturally drying, is i.e. obtained.
Embodiment 6
(1) in uncovered beaker, 50mL titanium tetrachloride is added in 300mL ethylene glycol, after stirring 10min, obtain titanium ethylene glycolate solution.
(2) 50mL water is added in step (1) made titanium ethylene glycolate solution, after stirring 10min, gained solution is transferred in flask, at 150 DEG C, then react 4h, then the suspension of gained is centrifuged.
(3) by step (2) gained white precipitate water and washing with alcohol 3 times, target product after the most naturally drying, is i.e. obtained.
Embodiment 7
(1) in uncovered beaker, 1mL titanium tetrachloride is added in 30mL ethylene glycol, after stirring 10min, obtain titanium ethylene glycolate solution.
(2) 1mL water is added in step (1) made titanium ethylene glycolate solution, after stirring 10min, gained solution is transferred in flask, at 150 DEG C, then react 12h, then the suspension of gained is centrifuged.
(3) by step (2) gained white precipitate water and washing with alcohol 3 times, target product after the most naturally drying, is i.e. obtained.
The present invention utilize titanium tetrachloride as titanium source, pre-synthesis intermediate titanium ethylene glycolate under the effect of ethylene glycol；Recycling solvent thermal reaction makes it hydrolyze in acid condition, thus obtains ultra-thin B phase titanium dioxide nano sheet.Having workable, use raw material to be easy to get, with low cost, energy consumption is less, and step is easy, and reaction unit is simple, and synthesis is gentle with post-treatment condition, preparation process mild condition, course of reaction cleanliness without any pollution, reaction efficiency advantages of higher.
Claims (9)
1. the preparation method of a ultra-thin B phase titanium dioxide nano sheet, it is characterised in that comprise the following steps:
1) presoma of titanium is added in ethylene glycol, after stirring, obtain titanium ethylene glycolate solution；
2) in step 1) the titanium ethylene glycolate solution that obtains adds water, after stirring, gained solution is reacted at 150～180 DEG C, then the suspension of gained is centrifuged, obtains white precipitate；
3) by step 2) washing of gained white precipitate, dry, obtain ultra-thin B phase titanium dioxide nano sheet.
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 1) in, the presoma of described titanium uses titanium tetrachloride.
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 1) in, described stirring is to stir to solution clarification without precipitation.
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 1) in, the presoma of described titanium and the volume ratio of ethylene glycol are 1: (10～50).
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 2) in, described titanium ethylene glycolate solution is (10～50) with the volume ratio of water: 1.
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 2) in, the time of described stirring is 10～30min.
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 2) in, described reaction is reacted in reactor or flask.
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 2) in, the time of described reaction is 4～12h.
The preparation method of a kind of ultra-thin B phase titanium dioxide nano sheet the most as claimed in claim 1, it is characterised in that in step 3) in, described washing is successively by water and washing with alcohol at least 1 time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156781.2A CN105819502A (en) | 2016-03-18 | 2016-03-18 | Preparation method of ultrathin B phase titanium dioxide nano sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156781.2A CN105819502A (en) | 2016-03-18 | 2016-03-18 | Preparation method of ultrathin B phase titanium dioxide nano sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105819502A true CN105819502A (en) | 2016-08-03 |
Family
ID=56523995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610156781.2A Pending CN105819502A (en) | 2016-03-18 | 2016-03-18 | Preparation method of ultrathin B phase titanium dioxide nano sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105819502A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237995A (en) * | 2016-09-13 | 2016-12-21 | 中国科学院化学研究所 | A kind of titanium ethylene glycolate nano material and preparation method and application |
| CN106495212A (en) * | 2016-11-09 | 2017-03-15 | 中国科学院新疆理化技术研究所 | A kind of preparation method of the humidity sensor material based on ultra-thin titanium dioxide nanosheet |
| CN107285376A (en) * | 2017-07-18 | 2017-10-24 | 浙江大学 | A kind of two-dimentional TiO2Ultrathin nanometer piece and preparation method thereof |
| CN107935034A (en) * | 2017-11-09 | 2018-04-20 | 中国科学院上海硅酸盐研究所 | Few layer titanium oxide and preparation method thereof |
| CN108404920A (en) * | 2018-01-16 | 2018-08-17 | 天津大学 | A kind of preparation method of the catalyst of degradation VOCs |
| CN109762233A (en) * | 2019-01-30 | 2019-05-17 | 中国科学院长春应用化学研究所 | A kind of titania modified PE nano composite film of high barrier two-dimensional ultrathin and preparation method thereof |
| CN109762312A (en) * | 2019-01-30 | 2019-05-17 | 中国科学院长春应用化学研究所 | A kind of nano-titanium dioxide modified PTT composite material and preparation method of high tenacity two-dimensional ultrathin |
| CN109796679A (en) * | 2019-01-30 | 2019-05-24 | 中国科学院长春应用化学研究所 | A kind of titania modified PP nanocomposite of the two-dimensional ultrathin of high tenacity and preparation method thereof |
| CN109837605A (en) * | 2019-01-30 | 2019-06-04 | 中国科学院长春应用化学研究所 | Compound brush filament of a kind of titania modified polyester nano of two-dimensional ultrathin and preparation method thereof |
| CN112892523A (en) * | 2021-01-28 | 2021-06-04 | 南京大学 | Heterojunction photocatalyst with high catalytic activity and preparation method and application thereof |
| CN113336265A (en) * | 2021-03-10 | 2021-09-03 | 北京航空航天大学 | Preparation method of black titanium dioxide B nanosheet with high-content oxygen vacancy defects |
| CN116272937A (en) * | 2023-03-28 | 2023-06-23 | 南京大学 | TiO (titanium dioxide) 2 Preparation method and application of nanosheet material |
| CN116553607A (en) * | 2023-03-28 | 2023-08-08 | 南京大学 | Ultra-thin TiO (titanium dioxide) prepared based on condensation reflux method 2 Method for preparing nanosheets and application thereof |
| CN116272937B (en) * | 2023-03-28 | 2024-05-03 | 南京大学 | TiO (titanium dioxide)2Preparation method and application of nanosheet material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310468A (en) * | 2014-10-14 | 2015-01-28 | 吉林大学 | Method for preparing monodisperse titanium dioxide (B) nano particles |
| CN105271395A (en) * | 2015-10-12 | 2016-01-27 | 上海第二工业大学 | Ultrathin titanium dioxide nanometer sheet and preparation method thereof |
-
2016
- 2016-03-18 CN CN201610156781.2A patent/CN105819502A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310468A (en) * | 2014-10-14 | 2015-01-28 | 吉林大学 | Method for preparing monodisperse titanium dioxide (B) nano particles |
| CN105271395A (en) * | 2015-10-12 | 2016-01-27 | 上海第二工业大学 | Ultrathin titanium dioxide nanometer sheet and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| GUOLEI XIANG ET AL.: "Large-scale synthesis of metastable TiO2(B) nanosheets with atomic thickness and their photocatalytic properties", 《CHEM. COMMUN.》 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237995A (en) * | 2016-09-13 | 2016-12-21 | 中国科学院化学研究所 | A kind of titanium ethylene glycolate nano material and preparation method and application |
| CN106237995B (en) * | 2016-09-13 | 2019-08-20 | 中国科学院化学研究所 | A kind of titanium ethylene glycolate nano material and the preparation method and application thereof |
| CN106495212A (en) * | 2016-11-09 | 2017-03-15 | 中国科学院新疆理化技术研究所 | A kind of preparation method of the humidity sensor material based on ultra-thin titanium dioxide nanosheet |
| CN107285376A (en) * | 2017-07-18 | 2017-10-24 | 浙江大学 | A kind of two-dimentional TiO2Ultrathin nanometer piece and preparation method thereof |
| CN107935034A (en) * | 2017-11-09 | 2018-04-20 | 中国科学院上海硅酸盐研究所 | Few layer titanium oxide and preparation method thereof |
| CN108404920A (en) * | 2018-01-16 | 2018-08-17 | 天津大学 | A kind of preparation method of the catalyst of degradation VOCs |
| CN109837605A (en) * | 2019-01-30 | 2019-06-04 | 中国科学院长春应用化学研究所 | Compound brush filament of a kind of titania modified polyester nano of two-dimensional ultrathin and preparation method thereof |
| CN109796679A (en) * | 2019-01-30 | 2019-05-24 | 中国科学院长春应用化学研究所 | A kind of titania modified PP nanocomposite of the two-dimensional ultrathin of high tenacity and preparation method thereof |
| CN109762312A (en) * | 2019-01-30 | 2019-05-17 | 中国科学院长春应用化学研究所 | A kind of nano-titanium dioxide modified PTT composite material and preparation method of high tenacity two-dimensional ultrathin |
| CN109762233A (en) * | 2019-01-30 | 2019-05-17 | 中国科学院长春应用化学研究所 | A kind of titania modified PE nano composite film of high barrier two-dimensional ultrathin and preparation method thereof |
| CN109837605B (en) * | 2019-01-30 | 2020-09-04 | 芜湖万隆新材料有限公司 | Two-dimensional ultrathin titanium dioxide modified polyester nano composite brush wire and preparation method thereof |
| CN109762312B (en) * | 2019-01-30 | 2021-04-30 | 芜湖万隆新材料有限公司 | High-toughness two-dimensional ultrathin nanometer titanium dioxide modified PTT composite material and preparation method thereof |
| CN112892523A (en) * | 2021-01-28 | 2021-06-04 | 南京大学 | Heterojunction photocatalyst with high catalytic activity and preparation method and application thereof |
| CN112892523B (en) * | 2021-01-28 | 2022-02-08 | 南京大学 | Heterojunction photocatalyst with high catalytic activity and preparation method and application thereof |
| CN113336265A (en) * | 2021-03-10 | 2021-09-03 | 北京航空航天大学 | Preparation method of black titanium dioxide B nanosheet with high-content oxygen vacancy defects |
| CN116272937A (en) * | 2023-03-28 | 2023-06-23 | 南京大学 | TiO (titanium dioxide) 2 Preparation method and application of nanosheet material |
| CN116553607A (en) * | 2023-03-28 | 2023-08-08 | 南京大学 | Ultra-thin TiO (titanium dioxide) prepared based on condensation reflux method 2 Method for preparing nanosheets and application thereof |
| CN116553607B (en) * | 2023-03-28 | 2024-04-12 | 南京大学 | Ultra-thin TiO (titanium dioxide) prepared based on condensation reflux method 2 Method for preparing nanosheets and application thereof |
| CN116272937B (en) * | 2023-03-28 | 2024-05-03 | 南京大学 | TiO (titanium dioxide)2Preparation method and application of nanosheet material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105819502A (en) | Preparation method of ultrathin B phase titanium dioxide nano sheet | |
| AU2005207253B2 (en) | Metal oxide dispersion, metal oxide electrode film, and dye sensitized solar cell | |
| CN102924979B (en) | Method for preparing inorganic and organic coating titanium dioxide | |
| CN101318698B (en) | Method for preparing anatase type nano-titanium dioxide | |
| CN107311227B (en) | A kind of preparation method and product of the titanium dioxide nanoplate mixing crystal form | |
| CN100358625C (en) | Prepn process of nanometer crystal titania aerogel with high photocatalysis activity | |
| CN101791565A (en) | TiO2@ graphite phase carbon nitride heterojunction composite photocatalyst and preparation method thereof | |
| CN103332737B (en) | Preparation method of titanium dioxide nano-powder | |
| CN105944738A (en) | Preparation method of TiO2/MoS2 composite material based on surface modification | |
| CN105129849A (en) | Flowerlike nano-sized titanium dioxide material and template-free preparation method thereof | |
| CN107308927A (en) | A kind of preparation method of titanium dioxide homojunction nano-photocatalyst | |
| CN103816897A (en) | Titanium dioxide-silver composite ball adopting core-shell structure as well as preparation method and application of ball | |
| CN100551829C (en) | A kind of preparation method of titanic oxide hollow microballoon | |
| CN103803633B (en) | Preparation method of zinc oxide/titanium dioxide nanometer composite material | |
| CN103466695B (en) | Method for preparing titanium dioxide submicron tube with high specific surface area | |
| CN103787408B (en) | A kind of preparation method of trifluoro oxygen titanium acid ammonium | |
| CN108529669A (en) | A kind of preparation method and titania aerogel of titania aerogel | |
| CN105439197B (en) | Preparation method of urchin-like rutile type nano titanium oxide | |
| CN105148953B (en) | A kind of bundle-shaped TiOF2Low temperature preparation method | |
| CN103601237A (en) | Charged anatase titania nanoparticles and low-temperature preparation method thereof | |
| CN103588244B (en) | Without the method for the sandwich hollow titanium dioxide nano material of template synthesis | |
| CN103043716A (en) | Preparation method of titanium dioxide nanosphere | |
| CN102120612B (en) | Preparation method of anatase type titanium dioxide nanoparticles | |
| CN101805017B (en) | Preparation method of rutile type titanium dioxide nano particle | |
| WO2018001175A1 (en) | Preparation method for high visible light absorption titanium dioxide nanoparticle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |
|
| RJ01 | Rejection of invention patent application after publication |