CN109021967A - A kind of preparation method of molybdate red phosphor - Google Patents
A kind of preparation method of molybdate red phosphor Download PDFInfo
- Publication number
- CN109021967A CN109021967A CN201810816030.8A CN201810816030A CN109021967A CN 109021967 A CN109021967 A CN 109021967A CN 201810816030 A CN201810816030 A CN 201810816030A CN 109021967 A CN109021967 A CN 109021967A
- Authority
- CN
- China
- Prior art keywords
- red phosphor
- molybdate red
- preparation
- molybdate
- mof
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7736—Vanadates; Chromates; Molybdates; Tungstates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
The present invention relates to fluorescent powder preparation technical fields, are related to a kind of preparation method of molybdate red phosphor, include the following steps, molybdate red phosphor semi-finished product are first prepared；Then by Zn (NO in terms of quality proportioning3)2·6H2O47~95 part, H2BDC20~40 part and 3~50 parts of molybdate red phosphor semi-finished product are sequentially placed into N-Methyl pyrrolidone and ultrasonic vibration dissolves to obtain mixed solution；Then mixed solution is placed in reaction in isoperibol and obtains the initial product of the molybdate red phosphor containing MOF；The initial product of the molybdate red phosphor containing MOF are finally cleaned and dried to obtain the molybdate red phosphor containing MOF.The present invention organically combines metal organic framework MOF material and nano fluorescent powder particles, utilize the characteristic of the high-specific surface area of MOF material, high porosity, realize dispersion of the nano fluorescent powder particles in MOF material, the defect that nano-phosphor particle light-emitting is inefficient in the prior art is overcome, to achieve the purpose that improve light-emitting phosphor efficiency.
Description
Technical field
The present invention relates to fluorescent powder preparation technical fields, more specifically to a kind of system of molybdate red phosphor
Preparation Method.
Background technique
Currently, red fluorescence powder, preparation method thereof mainly uses sol-gel method and high temperature solid-state method, high temperature solid-state method can be with
Produce in enormous quantities but fluorescent powder grain size is larger, usually micron dimension.The fluorescent powder grain size of sol-gel method preparation
It is small, generally in nanometer scale.The shortcomings that prior art/deficiency: although (1) nano-phosphor of sol-gel method preparation shines
Efficiency is higher than prepared by high temperature solid-state method, but compared to the luminous efficiency of YAG:Ce bloom or lower, cannot be used for well white
In the raising of light LED colour rendering index.(2) the nano-phosphor technique of sol-gel method preparation is more complex, it is difficult to which high-volume is raw
It produces, higher cost.
Summary of the invention
In view of this, the present invention provides a kind of preparation method of molybdate red phosphor, to solve in the prior art
The inefficient defect of nano-phosphor particle light-emitting.
A kind of preparation method of molybdate red phosphor, comprising the following steps:
S1, by Eu2O3、SrCO3And NaHCO3It is sequentially placed into HNO3Inside prepare nitrate solution, wherein Eu2O3:
HNO3: SrCO3: NaHCO3Molar ratio be 2.1:2.1:9.8:9.8；Step S1 specifically: according to 2.1:2.1:9.8:9.8
Molar ratio, first weigh the Eu of 4.2mmol2O3It is dissolved in the HNO of 4.2mmol3In, then again toward HNO3In sequentially add
19.6mmol SrCO3With the NaHCO of 19.6mmol3, reaction obtains nitrate solution at normal temperature.
S2, the citric acid solution for preparing 4.76mol/L；Step S2 the specifically: by (C of 47.6mmol6H8O7)·H2O
It is dissolved in the distilled water of 10ml and obtains citric acid solution.
S3, nitrate solution and ethylene glycol are poured into citric acid solution and stirred, then put after adjusting solution pH value to 5
Enter to water bath with thermostatic control several hours and obtains colloidal sol；Step S3 specifically: respectively by nitrate solution obtained in step S1 and
Ethylene glycol is poured into citric acid solution and stirs, and then utilizes the thermostatted water that 60 DEG C are put into after ammonium hydroxide adjusting solution pH value to 5
Bath obtains colloidal sol in 3 hours.
S4, by (NH4)6Mo7O24·4H2O aqueous solution is imported into colloidal sol be stirred to react several hours after be put into constant temperature
Dry glue presoma is dried to obtain in environment；Step S4 specifically: by (NH4)6Mo7O24·4H2O aqueous solution is added step S3 and obtains
Colloidal sol in, uniform stirring 5 hours at 80 DEG C, the then electric heating constant temperature air blast drying box by gained colloidal sol at 150 DEG C again
Middle drying 24 hours obtains the dry glue presoma of brown.
S5, dry glue presoma is calcined and grinds to obtain molybdate red phosphor semi-finished product；Step S5 is specific
Are as follows: the dry glue presoma that step S4 is obtained is put into 700 DEG C of environment of chamber type electric resistance furnace and is calcined 4 hours, ground after cooling
Obtain molybdate red phosphor semi-finished product.
S6, by Zn (NO3)2·6H2O、H2BDC and molybdate red phosphor semi-finished product are sequentially placed into N- methyl pyrrole
In pyrrolidone and ultrasonic vibration dissolves to obtain mixed solution, wherein Zn (NO3)2·6H2O、H2BDC and molybdate red fluorescence
The molar ratio of powder semi-finished product is 20:15:1；Step S6 specifically: by the Zn (NO of 20mmol3)2·6H2O, 15mmol
H2The molybdate red phosphor semi-finished product of BDC and 1mmol are added in the N-Methyl pyrrolidone of 30ml simultaneously, and are put
Enter into ultrasonic wave dissolution and obtains mixed solution；Alternatively, by Zn (NO in terms of quality proportioning3)2·6H2O50~70 part, H2BDC25
~35 parts and 15~35 parts of molybdate red phosphor semi-finished product are sequentially placed into N-Methyl pyrrolidone simultaneously ultrasonic vibration
Dissolution obtains mixed solution.
S7, it mixed solution is placed in isoperibol reaction obtains the initial product of the molybdate red phosphor containing MOF；It should
Step S7 specifically: the step S7 mixed solution obtained is placed in 120 DEG C of electric heating constant temperature air blast drying box and is reacted 12 hours
Obtain the initial product of the molybdate red phosphor containing MOF.Reactive chemistry equation in step S7 are as follows: 4Zn (NO3)2·
6H2O+3H2BDC→Zn4O(BDC)3+23H2O+8HNO3。
S8, that the initial product of the molybdate red phosphor containing MOF are cleaned and dried to obtain the molybdate containing MOF is red
Color fluorescent powder.Step S8 specifically: first with the molybdic acid containing MOF being prepared in N-Methyl pyrrolidone cleaning step S7
The initial product of salt red fluorescence powder, then use CH again2Cl2The molybdate red fluorescence containing MOF being prepared in rinsing step S7
The initial product of powder, last pole obtain the molybdate red phosphor containing MOF.
It can be seen from the above technical scheme that containing the molybdate red phosphor of MOF prepared by the present invention, it will be golden
The preparation and nano fluorescent powder particles for belonging to organic backbone MOF material organically combine, and utilize the high-specific surface area of MOF material, Gao Kong
The characteristic of gap rate realizes dispersion of the nano fluorescent powder particles in MOF material, improves the hair of the nano red fluorescent powder of molybdate
Light efficiency reduces the dosage of rare earth, simplifies the preparation process of fluorescent powder, reduces production cost, overcomes in the prior art
The inefficient defect of nano-phosphor particle light-emitting, so that containing the molybdate red phosphor of MOF prepared by the present invention
Molybdate red phosphor prepared by the present invention containing MOF can perform well in white light LEDs and show in index, to reach
Improve the purpose of light-emitting phosphor efficiency.
Detailed description of the invention
Fig. 1 is nano-phosphor particle emission spectrogram in the prior art.
Fig. 2 is the molybdate red phosphor launching light spectrogram containing MOF prepared by the embodiment of the present invention.
Fig. 3 is that the SEM of pure MOF-5 material schemes.
Fig. 4 is the SEM figure of the molybdate red phosphor containing MOF prepared by the embodiment of the present invention.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing described in technical description to be briefly described, it is therefore apparent that the attached drawing in description below is only of the invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Specific embodiment
Following example is for present invention be described in more detail, but embodiment does not do any type of limit to the present invention
Fixed, except illustrating, reagent that the present invention uses, method and apparatus are the conventional reagent of the art, method and apparatus,
But the invention is not limited in any way.
Embodiment: molybdate red phosphor, step are prepared first are as follows:
1. (the NH for the electronic balance weighing 6.0mmol for being first 0.0001g with precision4)6Mo7O24·4H2O is dissolved in 25ml
Distilled water in.
2. then weighing the Eu of 4.2mmol2O3It is dissolved in HNO3In (1:1), the SrCO of 19.6mmol is added to it3, then to its
The NaHCO of 19.6mmol is added3, sufficiently react and form nitrate solution.
3. weighing the (C of 47.6mmol again6H8O7)·H2O is dissolved in 10ml distilled water, and citric acid solution is made.
4. nitrate mixed solution is poured into citric acid solution, 1.4mmol ethylene glycol is added and is vigorously stirred, utilizes ammonium hydroxide
Solution pH value is transferred to 5 or so, 60 DEG C of water bath with thermostatic control 3 hours is put into, faint yellow colloidal sol is made.
5. by (NH4)6Mo7O24·4H2O aqueous solution is added in faint yellow colloidal sol, the uniform stirring at 80 DEG C, and reaction 5 is small
When, by gained colloidal sol, drying for 24 hours, just prepares the dry glue presoma of brown in 150 DEG C of electric heating constant temperature air blast drying box.
6. finally (temperature is 700 DEG C) calcines 4h in chamber type electric resistance furnace, ground after natural cooling to get required molybdenum is arrived
Silicate red fluorescent powder semi-finished product.
7. prepared molybdate red phosphor semi-finished product are placed in the synthesis of MOF-5 material: according to generation MOF-5
When chemical equation: 4Zn (NO3)2·6H2O+3H2BDC→Zn4O(BDC)3+23H2O+8HNO3, electronic balance is used first
Weigh 20mmol Zn (NO3)2·6H2O and 15mmol H2BDC and 1mmol molybdate red phosphor semi-finished product dissolve in together
In the NMP (N-Methyl pyrrolidone) of 30ml, it is then placed in ultrasonic wave and dissolves 30min, stir evenly, then solution is poured into water
In thermal response kettle, reaction kettle is placed in electric heating constant temperature air blast drying box and is reacted 12 hours, reaction temperature is 120 DEG C, has been reacted
Bi Hou, hydrothermal reaction kettle natural cooling.It is cleaned three times with NMP again, each dosage about 20ml is complete to remove the unreacted in product
Reactant.CH is used again2Cl2(methylene chloride) rinses, and impregnates three times, each dosage 15ml, displacement sorption guest molecule in the product
Sub- NMP.Product is finally placed on drying 12 hours in drying box, temperature is 120 DEG C, and required molybdate is obtained after natural cooling
Red fluorescence powder and Zn4O(BDC)3Molar ratio is the sample of 1:5.
As shown in Figs. 1-2, Fig. 1 and Fig. 2 is the spectrum test figure that two kinds of fluorescent powders carry out under traditional technology the same terms,
Wherein, Fig. 1 is that nano-phosphor particle emission spectrogram, Fig. 2 are to contain MOF prepared by the embodiment of the present invention in the prior art
Molybdate red phosphor launching light spectrogram.It would know that from the comparing result of Fig. 1 and Fig. 2: under the same conditions, containing MOF
The luminous efficiency of molybdate red phosphor be 3 times of pure phosphor luminous efficiency.
As shown in Figure 3-4, Fig. 3 and Fig. 4 is the SEM test chart that two kinds of materials carry out under traditional technology the same terms,
In, it is that the SEM of pure MOF-5 material schemes, Fig. 4 is the molybdate red phosphor containing MOF prepared by the embodiment of the present invention
SEM figure.It would know that from the comparing result of Fig. 3 and Fig. 4: under the same conditions, using the fluorescent powder grain point of MOF-5 materials synthesis
It dissipates and is strengthened.
Obviously, the molybdate red phosphor containing MOF prepared by the present invention, by metal organic framework MOF material
Preparation is organically combined with nano fluorescent powder particles, using the characteristic of the high-specific surface area of MOF material, high porosity, realizes nanometer
Dispersion of the fluorescent powder grain in MOF material, improves the luminous efficiency of the nano red fluorescent powder of molybdate, reduces the use of rare earth
Amount, simplifies the preparation process of fluorescent powder, reduces production cost, overcomes nano-phosphor particle light-emitting effect in the prior art
The not high defect of rate so that prepared by the present invention containing MOF molybdate red phosphor the present invention prepared by contain MOF
Molybdate red phosphor can perform well in white light LEDs and show in index, improve light-emitting phosphor efficiency to reach
Purpose.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment cross-reference.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized the present invention.To these
A variety of modifications of embodiment will be readily apparent to those skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
Be intended to be limited to the embodiments shown herein, and be to fit to it is consistent with the principles and novel features disclosed in this article most
Wide range.
Claims (10)
1. a kind of preparation method of molybdate red phosphor, which comprises the following steps:
S1, by Eu2O3、SrCO3And NaHCO3It is sequentially placed into HNO3Inside prepare nitrate solution, wherein Eu2O3: HNO3:
SrCO3: NaHCO3Molar ratio be 2.1:2.1:9.8:9.8；
S2, the citric acid solution for preparing 4.76mol/L；
S3, nitrate solution and ethylene glycol are poured into citric acid solution and stirred, be then put into after adjusting solution pH value to 5
Water bath with thermostatic control several hours obtain colloidal sol；
S4, by (NH4)6Mo7O24·4H2O aqueous solution is imported into colloidal sol be stirred to react several hours after be put into isoperibol
In be dried to obtain dry glue presoma；
S5, dry glue presoma is calcined and grinds to obtain molybdate red phosphor semi-finished product；
S6, by Zn (NO3)2·6H2O、H2BDC and molybdate red phosphor semi-finished product are sequentially placed into N-Methyl pyrrolidone
Interior and ultrasonic vibration dissolves to obtain mixed solution, wherein Zn (NO3)2·6H2O、H2BDC and molybdate red phosphor half at
The molar ratio of product is 20:15:1；Alternatively, by Zn (NO in terms of quality proportioning3)2·6H2O47~95 part, H220~40 parts of BDC with
And 3~50 parts of molybdate red phosphor semi-finished product be sequentially placed into N-Methyl pyrrolidone and ultrasonic vibration is dissolved and mixed
Close solution；
S7, it mixed solution is placed in isoperibol reaction obtains the initial product of the molybdate red phosphor containing MOF；
S8, the initial product of the molybdate red phosphor containing MOF are cleaned and dried to obtain it is molybdate red glimmering containing MOF
Light powder.
2. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S1 is specific
Are as follows: according to the molar ratio of 2.1:2.1:9.8:9.8, first weigh the Eu of 4.2mmol2O3It is dissolved in the HNO of 4.2mmol3In, then again
Toward HNO3In sequentially add the SrCO of 19.6mmol3With the NaHCO of 19.6mmol3, reaction obtains nitrate solution at normal temperature.
3. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S2 is specific
Are as follows: by (the C of 47.6mmol6H8O7)·H2O, which is dissolved in the distilled water of 10ml, obtains citric acid solution.
4. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S3 is specific
Are as follows: nitrate solution obtained in step S1 and ethylene glycol are poured into citric acid solution stir respectively, then utilizes ammonium hydroxide
It adjusts solution pH value and obtains colloidal sol within water bath with thermostatic control 3 hours to being put into 60 DEG C after 5.
5. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S4 is specific
Are as follows: by (NH4)6Mo7O24·4H2O aqueous solution is added in the colloidal sol that step S3 is obtained, uniform stirring 5 hours at 80 DEG C, then
It is again that gained colloidal sol is 24 hours dry in 150 DEG C of electric heating constant temperature air blast drying box, obtain the dry glue presoma of brown.
6. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S5 is specific
Are as follows: the dry glue presoma that step S4 is obtained is put into 700 DEG C of environment of chamber type electric resistance furnace and is calcined 4 hours, ground after cooling
Obtain molybdate red phosphor semi-finished product.
7. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S6 is specific
Are as follows: by the Zn (NO of 20mmol3)2·6H2O, the H of 15mmol2The molybdate red phosphor semi-finished product of BDC and 1mmol according to
It is secondary to be added in the N-Methyl pyrrolidone of 30ml, and be put into dissolution in ultrasonic wave and obtain mixed solution；Or matched with quality
Than counting Zn (NO3)2·6H2O50~70 part, H225~35 parts of BDC and 15~30 parts of molybdate red phosphor semi-finished product
It is sequentially placed into N-Methyl pyrrolidone and ultrasonic vibration dissolves to obtain mixed solution.
8. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S7 is specific
Are as follows: it the step S7 mixed solution obtained is placed in react 12 hours in 120 DEG C of electric heating constant temperature air blast drying box obtains containing MOF
The initial product of molybdate red phosphor.
9. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that step S8 is specific
Are as follows: first with the initial product of the molybdate red phosphor containing MOF being prepared in N-Methyl pyrrolidone cleaning step S7, so
Use CH again afterwards2Cl2The initial product of the molybdate red phosphor containing MOF being prepared in rinsing step S7, last pole obtain
Molybdate red phosphor containing MOF.
10. a kind of preparation method of molybdate red phosphor as described in claim 1, which is characterized in that in step S7
Reactive chemistry equation are as follows:
4Zn(NO3)2·6H2O+3H2BDC→Zn4O(BDC)3+23H2O+8HNO3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816030.8A CN109021967A (en) | 2018-07-24 | 2018-07-24 | A kind of preparation method of molybdate red phosphor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816030.8A CN109021967A (en) | 2018-07-24 | 2018-07-24 | A kind of preparation method of molybdate red phosphor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109021967A true CN109021967A (en) | 2018-12-18 |
Family
ID=64644475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816030.8A Pending CN109021967A (en) | 2018-07-24 | 2018-07-24 | A kind of preparation method of molybdate red phosphor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109021967A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305657A (en) * | 2019-06-17 | 2019-10-08 | 五邑大学 | A method of improving nitride red fluorescent powder luminescent properties with MOF material |
| CN113956499A (en) * | 2021-11-25 | 2022-01-21 | 常州大学 | Zinc-containing isopolymolybdic acid metal organic framework material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333182A (en) * | 2013-06-04 | 2013-10-02 | 中南大学 | Method for preparing MOF-5 |
| CN106252676A (en) * | 2016-07-28 | 2016-12-21 | 青岛大学 | A kind of quantum dot modified metal organic backbone embeds the preparation of carbon nano-tube material |
| CN107805495A (en) * | 2017-09-18 | 2018-03-16 | 上海师范大学 | The preparation method of high brightness zinc-manganese sulfide nano-phosphor |
-
2018
- 2018-07-24 CN CN201810816030.8A patent/CN109021967A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333182A (en) * | 2013-06-04 | 2013-10-02 | 中南大学 | Method for preparing MOF-5 |
| CN106252676A (en) * | 2016-07-28 | 2016-12-21 | 青岛大学 | A kind of quantum dot modified metal organic backbone embeds the preparation of carbon nano-tube material |
| CN107805495A (en) * | 2017-09-18 | 2018-03-16 | 上海师范大学 | The preparation method of high brightness zinc-manganese sulfide nano-phosphor |
Non-Patent Citations (2)
| Title |
|---|
| QIONG WEI等: "Luminescent properties and the morphology of SrMoO4：Eu3+ powders synthesized via combining sol-gel and solid-state route", 《CENT. EUR. J. PHYS.》 * |
| 吴锦绣等: "SrMoO4∶Sm3+,Na+红色荧光粉的形貌调控和发光性能", 《无机化学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305657A (en) * | 2019-06-17 | 2019-10-08 | 五邑大学 | A method of improving nitride red fluorescent powder luminescent properties with MOF material |
| CN113956499A (en) * | 2021-11-25 | 2022-01-21 | 常州大学 | Zinc-containing isopolymolybdic acid metal organic framework material and preparation method and application thereof |
| CN113956499B (en) * | 2021-11-25 | 2022-11-11 | 常州大学 | Zinc-containing isopolymolybdic acid metal organic framework material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071027B (en) | Water-soluble rare-earth terbium ion-doped cerium fluoride nanocrystallines and preparation method thereof | |
| CN105754594A (en) | Fluorescent carbon dot/mesoporous molecular sieve composite luminescent material as well as preparation and application of fluorescent carbon dot/mesoporous molecular sieve composite luminescent material | |
| CN110358109B (en) | Luminous Zr-MOG metal organogel and synthesis method thereof | |
| CN107226914B (en) | Terbium organic framework complex and preparation method thereof | |
| CN105502421B (en) | A kind of preparation method of zinc silicate hollow sub-microsphere | |
| CN103275110B (en) | Highly stable Tb coordination polymer green luminous material and preparation method thereof | |
| CN109021967A (en) | A kind of preparation method of molybdate red phosphor | |
| CN101597494A (en) | The low temperature preparation method of yttrium aluminum garnet rare earth phosphor powder | |
| CN109135744B (en) | Tungstate NaLaW2O7(OH)2(H2O) and process for producing the same | |
| CN102676164B (en) | Spherical calcium molybdate-base red phosphor and preparation method thereof | |
| CN104326739B (en) | A kind of disilicic acid neodymium high temperature pigment of ceramic and preparation method thereof | |
| CN105018073B (en) | Complex red luminescent crystal material of a kind of Eu containing two kinds of parts and preparation method thereof | |
| CN110551291B (en) | Porous interpenetrating zinc-organic supramolecular polymer and preparation method and application thereof | |
| CN109957400A (en) | A kind of Mn4+The preparation method of ion-activated fluorination matter fluorescent powder | |
| CN107686730A (en) | A kind of Tb3+Adulterate tungstates novel green fluorescent material | |
| CN112592358A (en) | Blue light luminescent crystal material and preparation method and application thereof | |
| CN106753361B (en) | A kind of bismuth doping tungstate red fluorescent powder and preparation method, application | |
| CN108913134A (en) | A kind of CaMoO4:Eu3+Raw powder's production technology and application | |
| CN104927856B (en) | The method that tungstate red fluorescent powder is prepared based on sol-gel combustion method | |
| CN109158062A (en) | Silicon dioxide colloid compound rare-earth core-shell type microballoon and preparation method thereof | |
| CN110041933A (en) | A kind of Bi3+Doping enhancing Ce3+The fluorescent powder of yellow emission | |
| CN109810706B (en) | Preparation method of hydrangea-like europium-doped calcium molybdate powder | |
| CN105349136A (en) | Non-doped rear earth coordination polymer capable of emitting white light | |
| CN105131957B (en) | Polyacrylic acid modified bar-shaped single dispersing NaGdF4:Yb3+,Er3+Up-conversion phosphor | |
| CN110172345A (en) | A kind of graphene nanocomposite material doping prepares rare earth phosphor and preparation method thereof |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181218 |