WO2005002724A1 - Hydrotalcite du type a radical nitrate dote de photochromisme et procede de preparation correspondant - Google Patents
Hydrotalcite du type a radical nitrate dote de photochromisme et procede de preparation correspondant Download PDFInfo
- Publication number
- WO2005002724A1 WO2005002724A1 PCT/CN2003/000615 CN0300615W WO2005002724A1 WO 2005002724 A1 WO2005002724 A1 WO 2005002724A1 CN 0300615 W CN0300615 W CN 0300615W WO 2005002724 A1 WO2005002724 A1 WO 2005002724A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydrotalcite
- nitrate
- metal ion
- preparing
- photochromic properties
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/028—Beta-aluminas
-
- 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
- C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
- C09K9/02—Organic tenebrescent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/007—Mixed salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/20—Two-dimensional structures
- C01P2002/22—Two-dimensional structures layered hydroxide-type, e.g. of the hydrotalcite-type
-
- 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
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
Definitions
- the invention relates to a nitrate intercalated hydrotalcite with photochromic properties and a preparation method thereof.
- hydrotalcite is directly used as a substrate, and molecular design is performed according to the molecular controllability and intercalability of the ice talc to prepare a photochromic material with specific photosensitive properties.
- the material is based on the interlayer anionic nitrate receiving ultraviolet radiation to coordinate with the bivalent transition metal element of the laminate, and accompanied by electron transfer to produce a photochromic phenomenon.
- the material is limited to a certain photosensitivity, can achieve photothermal reversibility, and is a pollution-free inorganic-inorganic hybrid system.
- the photochromic material is a hydrotalcite whose interlayer anion is nitrate and has a layered structure. Its structural formula is:
- M 2+ represents a divalent metal ion, it may be Ni 2 +, Co 2 + Fe 2 +, or any one, preferably M 2+ Ni 2 +;
- M 3+ represents a trivalent metal ion, and may be any of Co 3 + , Fe 3 + , Al 3 + or Ga 3 + , and M 3+ is preferably Al 3+ ; '
- the hydrotalcite has photochromic properties, that is, when the high-pressure mercury lamp of 200W-1000W is irradiated for 10-60 minutes, the color of the hydrotalcite changes, and the color is restored after heating at 60-100 ° C, and this photothermal process Reversible.
- the nitrate-type hydrotalcite is prepared by the following method,
- A. Prepare a mixed solution of soluble divalent metal nitrate and soluble trivalent metal nitrate, in which the concentration of the divalent metal ion is' 0.2-1.2M, and the molar ratio of the divalent and trivalent metal ion is 2-4: 1; polyvalent metal ion may be a Ni 2+, Co 2 + Fe 2 +, or any one, preferably Ni 2 +; trivalent metal ion may be a Co 3 +, Fe 3 +, Al 3 + , or any of a Ga 3 + Species, preferably Al 3 + ;
- step C Slowly add the nitrate mixed solution prepared in step A to the alkaline solution prepared in step B, and stir vigorously until the pH range is 8-10, the end of the dropwise addition is performed at 50 ° C-9 (TC crystallized 12 -70 hours, filtered, washed to neutrality, dried at 60 ° C-10 ° C for 24 hours to obtain nitrate-type hydrotalcite.
- the preparation method used is simple, low cost, and the reaction is easy to perform;
- the photochromic performance of hydrotalcite can be controlled by controlling the types and molar ratios of divalent and trivalent metal ions in the solution.
- the nitrate-type hydrotalcite containing a transition metal in the laminate is an inorganic-inorganic composite photochromic material, which is simpler and more pollution-free than traditional organic or inorganic-organic photochromic materials.
- Step A Dissolve 21.76 g (0.1 mol) of solid Ni (N0 3 ) 2 ⁇ 6H 2 0 and 14 g (0.05 mol) of solid A1 (N0 3 ) 3 ⁇ 9H 2 0 in 100 ml of water.
- Step B Dissolve 12g NaOH in 100ml water to prepare a 3.0M alkaline solution.
- Step C Slowly add the salt solution to the alkaline solution while vigorously stirring, adjust the pH to 9 and finish the dropwise addition, crystallize at 65 ° C for 24h, filter and wash until the pH is about 7, 65 ° C and dry for 24h. A nickel-aluminum-nitrate-type hydrotalcite material was obtained.
- the anion in the obtained hydrotalcite layer is all nitrate, which is a LDHs material with a single crystal phase and a uniform structure.
- Step A Dissolve 11.64 g (0.04 mol) of solid Co (N0 3 ) 2 ⁇ 6H 2 0 and 7.5 g (0.02 mol) of solid A1 (N0 3 ) 3 ⁇ 9H 2 0 in 100 ml of water.
- Step B Dissolve 8g NaOH in 100ml water to prepare 2.0M alkali solution.
- the anion in the obtained hydrotalcite layer is all nitrate, which is a LDHs material with a single crystal phase and a uniform structure.
- the product was irradiated under a 500W high-pressure mercury lamp for 30 minutes, and its color changed from pink to light red, and the process was photothermally reversible.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003248228A AU2003248228A1 (en) | 2003-07-01 | 2003-08-01 | The nitrate radical-type hidrotalcite with photochronism and the process for preparing it |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN03148426.3A CN1566260A (zh) | 2003-07-01 | 2003-07-01 | 一种具有光致变色特性的硝酸根型水滑石及其制备方法 |
CN03148426.3 | 2003-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005002724A1 true WO2005002724A1 (fr) | 2005-01-13 |
Family
ID=33557749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2003/000615 WO2005002724A1 (fr) | 2003-07-01 | 2003-08-01 | Hydrotalcite du type a radical nitrate dote de photochromisme et procede de preparation correspondant |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN1566260A (zh) |
AU (1) | AU2003248228A1 (zh) |
WO (1) | WO2005002724A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105688212A (zh) * | 2016-03-03 | 2016-06-22 | 北京化工大学 | 一种具有双模成像以及协同治疗作用的复合物及其制备方法 |
CN110755617A (zh) * | 2019-11-27 | 2020-02-07 | 东华大学 | 一种层状双氢氧化物纳米载药复合物及其制备和应用 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100382886C (zh) * | 2005-05-26 | 2008-04-23 | 天津大学 | 去除植物药体系中铜和铅的吸附材料及其制备方法 |
CN100463858C (zh) * | 2006-04-12 | 2009-02-25 | 北京化工大学 | 超疏水层状双羟基复合金属氧化物薄膜及其制备方法 |
CN107651712B (zh) * | 2017-09-13 | 2019-06-18 | 太原理工大学 | 共沉淀一步制备硝酸根插层镍铝类水滑石的方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4843168A (en) * | 1987-12-22 | 1989-06-27 | Amoco Corporation | Catalysis using pillared hydrotalcites |
CN1192727A (zh) * | 1995-06-22 | 1998-09-09 | 英国石油化学品有限公司 | 乙二醇醚的合成 |
-
2003
- 2003-07-01 CN CN03148426.3A patent/CN1566260A/zh active Pending
- 2003-08-01 AU AU2003248228A patent/AU2003248228A1/en not_active Abandoned
- 2003-08-01 WO PCT/CN2003/000615 patent/WO2005002724A1/zh active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4843168A (en) * | 1987-12-22 | 1989-06-27 | Amoco Corporation | Catalysis using pillared hydrotalcites |
CN1192727A (zh) * | 1995-06-22 | 1998-09-09 | 英国石油化学品有限公司 | 乙二醇醚的合成 |
Non-Patent Citations (1)
Title |
---|
YANG A.Z. ET AL.: "Studies on synthesis and properties of Mg-Al-Nitrate layered double hydroxide", ACTA CHIMICA SINICA, vol. 60, no. 9, 2002, pages 1712 - 1715 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105688212A (zh) * | 2016-03-03 | 2016-06-22 | 北京化工大学 | 一种具有双模成像以及协同治疗作用的复合物及其制备方法 |
CN110755617A (zh) * | 2019-11-27 | 2020-02-07 | 东华大学 | 一种层状双氢氧化物纳米载药复合物及其制备和应用 |
Also Published As
Publication number | Publication date |
---|---|
AU2003248228A1 (en) | 2005-01-21 |
CN1566260A (zh) | 2005-01-19 |
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