WO2012012947A1 - 掺杂金属纳米粒子的硅酸盐发光材料及其制备方法 - Google Patents
掺杂金属纳米粒子的硅酸盐发光材料及其制备方法 Download PDFInfo
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- WO2012012947A1 WO2012012947A1 PCT/CN2010/075577 CN2010075577W WO2012012947A1 WO 2012012947 A1 WO2012012947 A1 WO 2012012947A1 CN 2010075577 W CN2010075577 W CN 2010075577W WO 2012012947 A1 WO2012012947 A1 WO 2012012947A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/87—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing platina group metals
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- 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
- C09K11/77342—Silicates
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- Silicate phosphors are also a good yellow phosphor. Compared with YAG phosphors, silicate phosphors have a wider excitation spectrum and better color purity, but at present, such phosphors have a problem of low luminous efficiency. However, further improvement of the luminescent properties of this material is a goal that researchers have been striving for.
- the technical problem to be solved by the present invention is to provide a silicate luminescent material incorporating a rare metal nanoparticle with good stability and high luminescence intensity and a preparation method thereof.
- Step 3 adding a stoichiometric ratio of the corresponding element in the chemical formula (Sr 1-x A x ) 3 SiO 5 : Eu y , D z to the final solution of the second solution to the Sr, A and Eu nitrate solution, and SrD 2 Or AD 2 is dissolved in a solution of nitric acid or water, A is one of alkali metal elements, D is F or Cl, x ranges from 0 ⁇ x ⁇ 0.5, and y ranges from 0.001 ⁇ y ⁇ 0.15 , the value of z is 0 ⁇ z ⁇ 0.5, and then a precipitant is added. After stirring the reaction, the precipitate is dried to obtain a precursor;
- Step 4 The precursor is subjected to heat treatment and reduction treatment and then cooled to obtain the silicate luminescent material doped with the metal nanoparticles.
- the auxiliary agent is polyvinylpyrrolidone, sodium citrate, cetyltrimethylammonium bromide, sodium lauryl sulfate or dodecylsulfonate. At least one of the sodium salts, the amount of the auxiliary agent added is from 1 ⁇ 10 -4 g / mL to 5 ⁇ 10 -2 g / mL in the finally obtained metal nanoparticle colloid.
- the reducing agent is at least one of hydrazine hydrate, ascorbic acid, sodium citrate or sodium borohydride, and the molar ratio of the reducing agent to the metal ion is 3.6:1 to 18:1.
- FIG. 1 is a flow chart of a method for preparing a metal nanoparticle-doped silicate luminescent material of the present invention
- the surface treatment agent is polyvinylpyrrolidone
- the solvent is water
- the concentration of the surface treatment agent is 0.005 to 0.1 g/mL.
- Colloidal metal nanoparticles to successively added ethanol, deionized water, ammonia, TEOS SiO 2 coated nanospheres prepared according to the sol is first proposed in Stöber et al - SiO 2 nanospheres be coated gel .
- step S03 the precipitating agent is ammonium carbonate, and the ammonium carbonate has an excess of 25% in the solution of step S03, based on the mass of the substance. This will ensure complete precipitation.
- the ammonium carbonate is added in this step S03, a white precipitate is formed, and then the reaction is stirred for a certain period of time. After the reaction is completed, the precipitate is placed in an oven to be dried to obtain a precursor.
- compositions of the doped metal nanoparticle-containing silicate luminescent materials and their preparation methods, as well as their properties, etc., are exemplified below by various embodiments.
- PVP polyvinylpyrrolidone
- 6 ml (mL) of deionized water dissolved, and then 4 mL of 1 ⁇ 10 -2 mol/L platinum metal nanoparticles were added and stirred for 18 hours ( h), then, while stirring, add 30 mL of absolute ethanol, 5 mL of ammonia water, and 1.0 mL of tetraethyl orthosilicate; after 6 hours of reaction, adjust the pH of the solution to 5, and then add 10.2 mL of 1 mol/L Sr(NO 3 ) 2 6mL 0.2mol/L Eu(NO 3 ) 3 , 3mL 0.2mol/L SrCl 2 aqueous solution, stir evenly, add 30mL 0.5mol/L (NH 4 ) 2 CO 3 slowly, stir the reaction for 5 hours, then precipitate It is placed in an oven and dried at 600 ° C for 10 h.
- PVP polyvinylpyrrolidone
- the luminescence intensity of the luminescent material is higher than that of the uncoated metal nanoparticles.
- the luminescence is enhanced by 45%, and the luminescent material of the embodiment has the characteristics of good stability, good color purity, and high luminous efficiency.
- Example 5 Preparation of Ag-doped nanoparticles (Ca 0.5 Sr 0.45 Eu 0.05 ) 3 SiO 5 @Ag 0.005
- Example 6 Preparation of doped Cu nanoparticles (Ba 0.075 Mg 0.025 Sr 0.75 Eu 0.15 ) 3 SiO 5 :Cl 0.01 @Cu 0.00125
- Example 8 Preparation of doped Ag And Au nanoparticles (Mg 0.1 Sr 0.84 Eu 0.06 ) 3 SiO 5 :F 0.1 @ (Ag 0.5 /Au 0.5 ) 0.002
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- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Description
Claims (10)
- 一种掺杂金属纳米粒子的硅酸盐发光材料,其特征在于:所述掺杂金属纳米粒子的硅酸盐发光材料的化学通式为:(Sr1-x-yAxEuy)3SiO5:Dz@Mn,其中,A为碱金属元素中的一种或者两种,D为F或Cl,@为包覆,M为金属纳米粒子,选自Ag、Au、Pt、Pd或Cu中的一种或者两种,x的取值范围为0≤x ≤0.5,y的取值范围为0.001<y≤0.15,z的取值为0≤z≤0.5,n 为金属纳米粒子与硅元素的摩尔之比,取值为0<n≤0.01。
- 如权利要求1所述的掺杂金属纳米粒子的硅酸盐发光材料,其特征在于:所述A为Ba、Ca、Mg或Zn中的一种或者两种。
- 如权利要求1所述的掺杂金属纳米粒子的硅酸盐发光材料,其特征在于:x的取值范围为0.05≤x≤0.3;y的取值范围为0.01≤y≤0.1;z的取值范围为0.01≤z≤0.13;n的取值范围为1×10-4≤n≤5×10-3。
- 一种掺杂金属纳米粒子的硅酸盐发光材料的制备方法,其包括如下步骤:步骤一:将金属的盐溶液、助剂和还原剂混合并反应制得金属纳米粒子胶体;其中,金属选自Ag、Au、Pt、Pd或Cu中的一种或者两种;步骤二:往金属纳米粒子胶体加入含表面处理剂的溶液对所述金属纳米粒子胶体进行表面处理后,然后加入无水乙醇、去离子水、氨水、正硅酸乙脂制备包覆SiO2纳米球,并将溶液的酸度调节为pH值为5;步骤三:按化学通式(Sr1-xAx)3SiO5: Euy, Dz中相应元素化学计量比往步骤二最终溶液中加入Sr、A和Eu的硝酸盐溶液,以及SrD2或AD2溶于硝酸或水的溶液,其中,A为碱金属元素中的一种,D为F或Cl,x的取值范围为0≤x ≤0.5,y的取值范围为0.001<y≤0.15,z的取值为0≤z≤0.5,接着再加入沉淀剂,搅拌反应后,将沉淀物干燥得到前驱体;步骤四:将前驱体进行热处理和还原处理后冷却即得所述掺杂金属纳米粒子的硅酸盐发光材料。
- 如权利要求4所述的制备方法,其特征在于:在步骤一中,所述助剂为聚乙烯砒咯烷酮、柠檬酸钠、十六烷基三甲基溴化铵、十二烷基硫酸钠或十二烷基磺酸钠中的至少一种,所述助剂的添加量在最终得到的金属纳米粒子胶体中的含量为1×10-4g/mL~5×10-2g/mL。
- 如权利要求4所述的制备方法,其特征在于:在步骤一中,所述还原剂为水合肼、抗坏血酸、柠檬酸钠或硼氢化钠中的至少一种,所述还原剂的添加量与金属离子的摩尔比为3.6:1~18:1。
- 如权利要求4所述的制备方法,其特征在于:在步骤二中,所述含表面处理剂的溶液中,表面处理剂为聚乙烯基吡咯烷酮,溶剂为水,所述表面处理剂的浓度为0.005~0.1g/mL。
- 如权利要求4所述的制备方法,其特征在于:在步骤三中,所述沉淀剂为碳酸铵,按照物质量计算,所述碳酸铵的在步骤三的溶液中过量25%。
- 如权利要求4所述的制备方法,其特征在于:在步骤四中,所述热处理为将前驱体放在马弗炉中于600℃~1000℃下处理2~10小时。
- 如权利要求4所述的制备方法,其特征在于:在步骤四中,所述还原处理为将经热处理后的前驱体置于还原气氛中在1300℃~1600℃还原1~8 小时,该还原气氛为氮气和氢气的混合气、一氧化碳气体、或者纯氢气中的至少一种。
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US13/812,908 US9206353B2 (en) | 2010-07-30 | 2010-07-30 | Metal nano particles doped with silicate luminescent materials and preparation methods thereof |
CN201080068190.0A CN103025847B (zh) | 2010-07-30 | 2010-07-30 | 掺杂金属纳米粒子的硅酸盐发光材料及其制备方法 |
EP10855175.5A EP2599852B1 (en) | 2010-07-30 | 2010-07-30 | Metal nano particles doped with silicate luminescent materials and preparation methods thereof |
PCT/CN2010/075577 WO2012012947A1 (zh) | 2010-07-30 | 2010-07-30 | 掺杂金属纳米粒子的硅酸盐发光材料及其制备方法 |
JP2013520942A JP5570663B2 (ja) | 2010-07-30 | 2010-07-30 | 金属ナノ粒子をドープしたケイ酸塩発光材料及びその調製方法 |
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Cited By (4)
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WO2014040220A1 (zh) * | 2012-09-11 | 2014-03-20 | 海洋王照明科技股份有限公司 | 硅酸盐发光材料及其制备方法 |
WO2014119913A1 (ko) * | 2013-01-31 | 2014-08-07 | 서울대학교 산학협력단 | 수분산성이 뛰어난 실리카 나노입자 제조 방법 |
CN104119892A (zh) * | 2013-04-26 | 2014-10-29 | 海洋王照明科技股份有限公司 | 一种包覆金属纳米粒子的硅酸盐发光材料及其制备方法 |
EP2832820A4 (en) * | 2012-05-08 | 2015-12-09 | Oceans King Lighting Science | LUMINESCENT TITANATE MATERIAL AND METHOD FOR PREPARING THE SAME |
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EP3300128B1 (en) * | 2016-09-21 | 2021-03-03 | Vestel Elektronik Sanayi ve Ticaret A.S. | Phosphor arrangement and method |
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- 2010-07-30 JP JP2013520942A patent/JP5570663B2/ja active Active
- 2010-07-30 WO PCT/CN2010/075577 patent/WO2012012947A1/zh active Application Filing
- 2010-07-30 EP EP10855175.5A patent/EP2599852B1/en active Active
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2832820A4 (en) * | 2012-05-08 | 2015-12-09 | Oceans King Lighting Science | LUMINESCENT TITANATE MATERIAL AND METHOD FOR PREPARING THE SAME |
WO2014040220A1 (zh) * | 2012-09-11 | 2014-03-20 | 海洋王照明科技股份有限公司 | 硅酸盐发光材料及其制备方法 |
CN104619811A (zh) * | 2012-09-11 | 2015-05-13 | 海洋王照明科技股份有限公司 | 硅酸盐发光材料及其制备方法 |
WO2014119913A1 (ko) * | 2013-01-31 | 2014-08-07 | 서울대학교 산학협력단 | 수분산성이 뛰어난 실리카 나노입자 제조 방법 |
CN104119892A (zh) * | 2013-04-26 | 2014-10-29 | 海洋王照明科技股份有限公司 | 一种包覆金属纳米粒子的硅酸盐发光材料及其制备方法 |
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EP2599852A1 (en) | 2013-06-05 |
JP5570663B2 (ja) | 2014-08-13 |
US9206353B2 (en) | 2015-12-08 |
CN103025847A (zh) | 2013-04-03 |
EP2599852A4 (en) | 2014-12-24 |
JP2013532743A (ja) | 2013-08-19 |
EP2599852B1 (en) | 2016-03-02 |
US20130126785A1 (en) | 2013-05-23 |
CN103025847B (zh) | 2014-08-13 |
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