CN104826620A - Preparation method of MgTi2O5 nano catalyst - Google Patents
Preparation method of MgTi2O5 nano catalyst Download PDFInfo
- Publication number
- CN104826620A CN104826620A CN201510201203.1A CN201510201203A CN104826620A CN 104826620 A CN104826620 A CN 104826620A CN 201510201203 A CN201510201203 A CN 201510201203A CN 104826620 A CN104826620 A CN 104826620A
- Authority
- CN
- China
- Prior art keywords
- preparation
- mgti
- nanocatalyst
- mgti2o5
- roasting
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of an MgTi2O5 nano catalyst, and relates to the preparation method of the nano catalyst. The preparation method aims to solve the technical problem that pure-phase MgTi2O5 nanocrystals are difficultly prepared by a conventional method. The method comprises the steps: firstly, adding magnesium acetate and tetrabutyl titanate into an ethylene glycol solution, and stirring; secondly, washing, and drying; and thirdly, roasting. The method can prepare pure-phase MgTi2O5, moreover, the average particle size of MgTi2O5 is less than 100 nm, and MgTi2O5 is a nano photocatalyst having quite high catalytic efficiency. The method is used for preparing the MgTi2O5 nano catalyst.
Description
Technical field
The present invention relates to the preparation method of nanocatalyst.
Background technology
Photolysis water hydrogen technology starts from 1972, is taught find TiO by Fujishima A and Honda K two
2single Crystalline Electrodes photochemical catalyzing thus produce hydrogen this phenomenon, thus disclose the possibility utilizing the hydrogen manufacturing of solar energy Direct Resolution water, open the research road utilizing solar photolysis water hydrogen.The principle of photocatalytic water is: light radiation on the semiconductor, when the energy of radiation is greater than or is equivalent to the energy gap of semiconductor, in semiconductor, electronics is stimulated from valence band and transits to conduction band, valence band is then stayed in hole, electronics is separated with hole, then water is reduced into hydrogen at the diverse location of semiconductor respectively or Water oxidize is become oxygen.
In this compounds of titanate, TiO
8octahedra corner-sharing or altogether limit form electronegative layer structure, and the metal ion of positively charged is filled between layers, and the TiO of distortion
8octahedron is considered to play an important role in the generation of photocatalytic activity.Particularly magnesium titanate is nanocrystalline has good photocatalytic activity, but pure phase magnesium titanate is difficult to synthesis.Particularly pure phase MgTi
2o
5nanocrystallinely also not to be in the news.
In sum, preparation synthesis pure phase MgTi
2o
5nanocrystallinely can provide a kind of high-performance nano photochemical catalyst.On the other hand, the performance of nano-photocatalyst depends on the synthetic method of nano material.
Summary of the invention
The present invention will solve existing method and be difficult to prepare pure phase MgTi
2o
5nanocrystalline technical problem, and a kind of MgTi is provided
2o
5the preparation method of nanocatalyst.
A kind of MgTi
2o
5the preparation method of nanocatalyst, specifically carries out according to following steps:
One, join in ethylene glycol solution by magnesium acetate and butyl titanate, control temperature is 20 DEG C, and mixing speed is 100r/min, stirs 20min, obtains mixture;
Two, the mixture adopting absolute ethanol washing step one to obtain, then vacuum drying 6h under temperature is 80 DEG C of conditions, obtains preformed objects;
Three, preformed objects step 2 obtained carries out roasting, obtains MgTi
2o
5nanocatalyst.
The invention has the beneficial effects as follows: the inventive method can prepare the MgTi of pure phase
2o
5, and this MgTi
2o
5average particle diameter size is less than 100 nanometers, and under UV-irradiation, hydrogen output is per hour reaches 400 micromoles, is the nano-photocatalyst that a kind of catalytic efficiency is very high.
The present invention is for the preparation of MgTi
2o
5nanocatalyst.
Accompanying drawing explanation
Fig. 1 is MgTi prepared by embodiment one
2o
5the transmission electron microscope photo of nanocatalyst;
Fig. 2 is MgTi prepared by embodiment one
2o
5the XRD spectra of nanocatalyst;
Fig. 3 is MgTi prepared by embodiment one
2o
5the photocatalytic water hydrogen output figure of nanocatalyst.
Detailed description of the invention
Technical solution of the present invention is not limited to following cited detailed description of the invention, also comprises any combination between each detailed description of the invention.
Detailed description of the invention one: a kind of MgTi of present embodiment
2o
5the preparation method of nanocatalyst, specifically carries out according to following steps:
One, join in ethylene glycol solution by magnesium acetate and butyl titanate, control temperature is 20 DEG C, and mixing speed is 100r/min, stirs 20min, obtains mixture;
Two, the mixture adopting absolute ethanol washing step one to obtain, then vacuum drying 6h under temperature is 80 DEG C of conditions, obtains preformed objects;
Three, preformed objects step 2 obtained carries out roasting, obtains MgTi
2o
5nanocatalyst.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: in step one, magnesium acetate is 0.268g, and butyl titanate is 0.425mL, and ethylene glycol solution is 60mL.Other is identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two unlike: in step 3 during roasting, controlling programming rate is 1 ~ 20 DEG C/min, and being warming up to temperature is 400 ~ 700 DEG C, and roasting time is 1 ~ 8h.Other is identical with detailed description of the invention one or two.
Detailed description of the invention four: present embodiment and detailed description of the invention one or two unlike: in step 3 during roasting, controlling programming rate is 10 ~ 15 DEG C/min, and being warming up to temperature is 500 ~ 650 DEG C, and roasting time is 2 ~ 6h.Other is identical with detailed description of the invention one or two.
Detailed description of the invention five: present embodiment and detailed description of the invention one or two unlike: in step 3 during roasting, being warming up to temperature is 600 DEG C.Other is identical with detailed description of the invention one or two.
Following examples are adopted to verify beneficial effect of the present invention:
Embodiment one:
A kind of MgTi of the present embodiment
2o
5the preparation method of nanocatalyst, specifically carries out according to following steps:
One, join in 60mL ethylene glycol solution by 0.268g magnesium acetate and 0.425mL butyl titanate, control temperature is 20 DEG C, and mixing speed is 100r/min, stirs 20min, obtains mixture;
Two, the mixture adopting absolute ethanol washing step one to obtain, then vacuum drying 6h under temperature is 80 DEG C of conditions, obtains preformed objects;
Three, preformed objects step 2 obtained carries out roasting, obtains MgTi
2o
5nanocatalyst, during roasting, controlling programming rate is 10 DEG C/min, and being warming up to temperature is 600 DEG C, and roasting time is 5h.
MgTi prepared by the present embodiment
2o
5the transmission electron microscope photo of nanocatalyst as shown in Figure 1, as can be seen from Figure 1, MgTi
2o
5average particle diameter size is less than 100 nanometers.
MgTi prepared by the present embodiment
2o
5the XRD spectra of nanocatalyst as shown in Figure 2, as can be seen from the figure MgTi
2o
5nanocatalyst is orthorhombic crystal phase.
MgTi prepared by the present embodiment
2o
5the photocatalytic water hydrogen output figure of nanocatalyst as shown in Figure 3, as can be seen from the figure MgTi
2o
5it is the nano-photocatalyst that a kind of catalytic efficiency is very high.
Claims (5)
1. a MgTi
2o
5the preparation method of nanocatalyst, is characterized in that what the method was specifically carried out according to following steps:
One, join in ethylene glycol solution by magnesium acetate and butyl titanate, control temperature is 20 DEG C, and mixing speed is 100r/min, stirs 20min, obtains mixture;
Two, the mixture adopting absolute ethanol washing step one to obtain, then vacuum drying 6h under temperature is 80 DEG C of conditions, obtains preformed objects;
Three, preformed objects step 2 obtained carries out roasting, obtains MgTi
2o
5nanocatalyst.
2. a kind of MgTi according to claim 1
2o
5the preparation method of nanocatalyst, it is characterized in that in step one, magnesium acetate is 0.268g, butyl titanate is 0.425mL, and ethylene glycol solution is 60mL.
3. a kind of MgTi according to claim 1
2o
5the preparation method of nanocatalyst, when it is characterized in that roasting in step 3, controlling programming rate is 1 ~ 20 DEG C/min, and being warming up to temperature is 400 ~ 700 DEG C, and roasting time is 1 ~ 8h.
4. a kind of MgTi according to claim 3
2o
5the preparation method of nanocatalyst, when it is characterized in that roasting in step 3, controlling programming rate is 10 ~ 15 DEG C/min, and being warming up to temperature is 500 ~ 650 DEG C, and roasting time is 2 ~ 6h.
5. a kind of MgTi according to claim 4
2o
5the preparation method of nanocatalyst, when it is characterized in that roasting in step 3, being warming up to temperature is 600 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201203.1A CN104826620B (en) | 2015-04-24 | 2015-04-24 | A kind of MgTi2O5The preparation method of nanocatalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201203.1A CN104826620B (en) | 2015-04-24 | 2015-04-24 | A kind of MgTi2O5The preparation method of nanocatalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104826620A true CN104826620A (en) | 2015-08-12 |
| CN104826620B CN104826620B (en) | 2017-05-31 |
Family
ID=53805031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510201203.1A Expired - Fee Related CN104826620B (en) | 2015-04-24 | 2015-04-24 | A kind of MgTi2O5The preparation method of nanocatalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104826620B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835155A (en) * | 2019-11-19 | 2020-02-25 | 浙江工业大学 | Method for treating water by catalyzing ozone oxidation through magnesium titanate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD258213A1 (en) * | 1987-03-06 | 1988-07-13 | Univ Schiller Jena | PROCESS FOR PRODUCING DISPERSER POWDER OF MG LOW2 TIO DEEP4, MGTIO LOW 3 AND MGTI LOW2 O LOW 5 |
| CN102351242A (en) * | 2011-08-17 | 2012-02-15 | 南京师范大学 | Solvent-thermal method for preparing single-phase bismuth titanate Bi2Ti2O7 |
| CN103011264A (en) * | 2012-12-19 | 2013-04-03 | 黑龙江大学 | Preparation method of one-dimensional metal titanate nanorods |
| CN104084184A (en) * | 2014-06-12 | 2014-10-08 | 陕西师范大学 | Preparation method and application of semiconductor photo-catalyst sodium magnesium titanate |
-
2015
- 2015-04-24 CN CN201510201203.1A patent/CN104826620B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD258213A1 (en) * | 1987-03-06 | 1988-07-13 | Univ Schiller Jena | PROCESS FOR PRODUCING DISPERSER POWDER OF MG LOW2 TIO DEEP4, MGTIO LOW 3 AND MGTI LOW2 O LOW 5 |
| CN102351242A (en) * | 2011-08-17 | 2012-02-15 | 南京师范大学 | Solvent-thermal method for preparing single-phase bismuth titanate Bi2Ti2O7 |
| CN103011264A (en) * | 2012-12-19 | 2013-04-03 | 黑龙江大学 | Preparation method of one-dimensional metal titanate nanorods |
| CN104084184A (en) * | 2014-06-12 | 2014-10-08 | 陕西师范大学 | Preparation method and application of semiconductor photo-catalyst sodium magnesium titanate |
Non-Patent Citations (3)
| Title |
|---|
| SHUAI LIU ET AL.: ""Photocatalytic activity of MTiO3(M=Ca,Ni,and Zn) nanocrystals for water decomposition to hydrogen", 《JOURNAL OF MATERIALS RESEARCH》 * |
| XUEYUN WANG ET AL.: ""Heavy metal sorption properties of magnesium titanate mesoporous nanorods"", 《JOURNAL OF MATERIALS CHEMISTRY A》 * |
| YANG QU ET AL.: ""A novel phase-mixed MgTiO3-MgTi2O5 heterogeneous nanorod for high efficiency photocatalytic hydrogen production"", 《CHEMCOMM》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835155A (en) * | 2019-11-19 | 2020-02-25 | 浙江工业大学 | Method for treating water by catalyzing ozone oxidation through magnesium titanate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104826620B (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | The development of better photocatalysts through composition‐and structure‐engineering | |
| Sun et al. | NiO nanosheet/TiO2 nanorod-constructed p–n heterostructures for improved photocatalytic activity | |
| Guo et al. | Photocatalytic Reduction of CO2 over Heterostructure Semiconductors into Value‐Added Chemicals | |
| Nguyen et al. | Recent advances in the development of sunlight-driven hollow structure photocatalysts and their applications | |
| Zheng et al. | Mesoporous TiO2 single crystals: facile shape-, size-, and phase-controlled growth and efficient photocatalytic performance | |
| Li et al. | Bismuth oxyhalide nanomaterials: layered structures meet photocatalysis | |
| CN105772041B (en) | A kind of Photocatalyzed Hydrogen Production co-catalyst, photocatalytic system and the method for producing hydrogen | |
| Sun et al. | Bi5FeTi3O15 hierarchical microflowers: hydrothermal synthesis, growth mechanism, and associated visible-light-driven photocatalysis | |
| Bai et al. | Semimetal bismuth mediated UV–vis-IR driven photo-thermocatalysis of Bi4O5I2 for carbon dioxide to chemical energy | |
| Wei et al. | Titanium glycolate-derived TiO2 nanomaterials: Synthesis and applications | |
| Huang et al. | Hetero-structural NiTiO3/TiO2 nanotubes for efficient photocatalytic hydrogen generation | |
| Li et al. | Visible-light photochemical activity of heterostructured core–shell materials composed of selected ternary titanates and ferrites coated by TiO2 | |
| CN104988533A (en) | TiO2/BiVO4 photo-anode material and preparation method thereof | |
| Liu et al. | Ag/CdS heterostructural composites: fabrication, characterizations and photocatalysis | |
| CN105905940B (en) | A kind of preparation method of nickel titanate/titanium dioxide composite nano material | |
| CN103223338A (en) | Titanium dioxide microsphere array supported platinum visible-light photocatalyst and preparation method | |
| CN103721700B (en) | A kind of high activity SnO 2-TiO 2the preparation method of composite photo-catalyst | |
| CN103691433A (en) | Ag-doped TiO2 material, and preparation method and application thereof | |
| Song et al. | Construction of TiO2@ Bi2WO6 hollow microspheres by template method for enhanced degradation of ethylene under visible light | |
| CN105289578A (en) | Metal oxide/carbon nanotube composite photocatalyst, and preparation method and application thereof | |
| CN105621474A (en) | Hyperbranched graded cuprous oxide nanomateiral and preparation method and application thereof | |
| Shen et al. | Fabrication of porous graphitic carbon nitride-titanium dioxide heterojunctions with enhanced photo-energy conversion activity | |
| Zhang et al. | Enhanced photocatalytic activity of SiC-based ternary graphene materials: A DFT study and the photocatalytic mechanism | |
| Luo et al. | Visible-light-driven HSr2Nb3O10/CdS heterojunctions for high hydrogen evolution activity | |
| CN104307536B (en) | Ternary Z-type visible ray photolytic hydrogen production catalyst and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20200424 |