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Preparation method of 8-hydroxyquinoline zinc with shape of octahedron

A technology of hydroxyquinoline zinc and hydroxyquinoline, applied in the field of preparation of octahedral shape 8-hydroxyquinoline zinc, to achieve the effect of easy to obtain raw materials, simple raw materials and short time consumption

Inactive Publication Date: 2010-10-13
ANHUI UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, some solution chemistry methods have been used to prepare Znq 2 Nanomaterials have also been developed. Zhu Junjie's research group prepared Znq by ultrasonic microemulsion method 2 Nanorods, Shao Mingwang's research group also prepared Znq 2 nanoribbons, but not yet for other morphologies Znq 2 report

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  • Preparation method of 8-hydroxyquinoline zinc with shape of octahedron
  • Preparation method of 8-hydroxyquinoline zinc with shape of octahedron
  • Preparation method of 8-hydroxyquinoline zinc with shape of octahedron

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preparation example Construction

[0012] The object of the present invention is to provide a kind of preparation method of octahedral morphology 8-hydroxyquinoline zinc, and its concrete steps comprise: (1) 8-hydroxyquinoline powder is dissolved in ethylene glycol, obtains 8-hydroxyquinoline The concentration is the solution A of 145 mg / ml; (2) zinc acetate dihydrate is dissolved in ethylene glycol, and the concentration scope that obtains zinc acetate dihydrate is solution B between 110 mg / ml to 220 mg / ml; (3) After mixing solution A and solution B, move it into a stainless steel reaction kettle with a polytetrafluoroethylene substrate; (4) react at a temperature of 160°C to 190°C for 12 to 48 hours; (4) after the reaction, The product was separated by centrifugation, the precipitate was washed successively with distilled water and ethanol, and the obtained precipitate was dried under vacuum to obtain light yellow 8-hydroxyquinoline zinc powder.

[0013] The median diameter (D50) of the prepared octahedral 8-...

Embodiment 1

[0016] Dissolve 1mmol of 8-hydroxyquinoline in 20mL of ethylene glycol, and 1mmol of zinc acetate dihydrate in 20mL of ethylene glycol. After mixing the above two solutions, move them into a stainless steel reactor with a polytetrafluoroethylene substrate, and then raise the temperature To 180 ℃ and constant temperature reaction for 24h. After the reaction, the product was centrifuged, the precipitate was washed with distilled water and ethanol in sequence, and the obtained precipitate was dried under vacuum to obtain a light yellow powder, that is, to obtain 8-hydroxyquinoline with a median diameter of about 1 μm and an octahedral shape. zinc. see figure 1 and figure 2 Octahedral morphology Znq prepared in the first embodiment 2 scanning electron microscope photographs. see image 3 Octahedral morphology Znq prepared in the first embodiment 2 The XRD pattern of image 3 It can be seen that 8-hydroxyquinoline zinc is a hexagonal crystal phase, and no heterophase peak i...

Embodiment 2

[0018] Dissolve 1mmol of 8-hydroxyquinoline in 20mL of ethylene glycol, and 0.5mmol of zinc acetate dihydrate in 20mL of ethylene glycol. After mixing the above two solutions, move them into a stainless steel reactor with a polytetrafluoroethylene substrate, and then The temperature was raised to 180°C and the reaction was carried out at a constant temperature for 24h. The other preparation conditions were the same as in Example 1, and 8-hydroxyquinoline zinc with a median diameter of about 0.2 μm in octahedral shape was obtained.

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Abstract

The invention provides a preparation method of 8-hydroxyquinoline zinc with the shape of an octahedron, which comprises the following steps: dissolving 8-hydroxyquinoline powder in glycol to obtain a solution A; dissolving zinc acetate dehydrate in glycol to obtain a solution B; mixing the solution A and the solution B and moving the mixture into a stainless steel reactor with a teflon substrate; reacting for 12-48h at the temperature of 160-190 DEG C; separating the product centrifugally after reaction, sequentially cleaning the sediment with distilled water and ethanol, and drying the obtain sediment in vacuum to obtain the 8-hydroxyquinoline zinc powder with the shape of the octahedron. The preparation method is operated simply and is suitable for industrialized production.

Description

technical field [0001] The invention relates to an octahedral morphology 8-hydroxyquinoline zinc (Znq 2 ) preparation method. Specifically, 8-hydroxyquinoline zinc with octahedral morphology was prepared by solvothermal method. Background technique [0002] In 1987, the Tang research group discovered that 8-hydroxyquinoline aluminum has a small driving voltage and can be used in organic electroluminescent devices. Since then, 8-hydroxyquinoline and its derivatives have become the most promising organic photoluminescent materials. . Among them, 8-hydroxyquinoline zinc has been used in organic light-emitting devices and biosensing due to its excellent photoelectric properties. With the development of nanotechnology today, Znq 2 Shape control of nanomaterials has become one of the research hotspots. [0003] Currently, the preparation of Znq 2 The method of nanomaterials mainly adopts the vapor phase deposition method, but this method often requires special equipment, hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D215/30
Inventor 毛昌杰陈西宝张胜义宋吉明牛和林金葆康
Owner ANHUI UNIVERSITY
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