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A preparation method of α-feooh three-dimensional multi-level microspheres

A microsphere, three-dimensional technology, applied in the direction of iron oxide/iron hydroxide, etc., can solve the problems of time-consuming, etc., and achieve the effect of simple preparation process, easy mass production, and low reaction temperature

Inactive Publication Date: 2017-06-16
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Recently, "B.Wang, H.Wu, L.Yu, R.Xu, T.T.Lim, X.W.Lou, Adv.Mater., 2012, 24, 1111-1116." reported that FeSO 4 ·7H 2 O is the reactant, ethylene glycol and water are used as the mixed solvent, and the α-FeOOH multi-level microspheres are prepared at 120 °C for 24 hours, but the preparation process of this method takes a long time

Method used

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  • A preparation method of α-feooh three-dimensional multi-level microspheres
  • A preparation method of α-feooh three-dimensional multi-level microspheres
  • A preparation method of α-feooh three-dimensional multi-level microspheres

Examples

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Effect test

Embodiment 1

[0024] In this example, first add 0.261g FeSO to 40mL deionized water 4 ·7H 2 O and 0.015g CH 3 COONa, stirred and dissolved to obtain a reaction solution, then put the reaction solution into a 50mL polytetrafluoroethylene hydrothermal reaction kettle, kept it at 120°C for 2 hours, then cooled to room temperature to obtain a reaction solution; then centrifuged the obtained reaction solution, and used it in turn Ionized water and ethanol were washed three times respectively to obtain a light yellow product, and finally the light yellow product was dried at 60° C. for 12 hours to prepare α-FeOOH three-dimensional multi-level microspheres.

[0025] In this embodiment, the product α-FeOOH three-dimensional multi-level microspheres are characterized by XRD, as shown in figure 1 As shown, the sample phase is orthorhombic goethite α-FeOOH.

[0026] In this example, the product α-FeOOH three-dimensional multi-level microspheres were characterized by SEM, as figure 2 As shown, the...

Embodiment 2

[0028] In this example, first add 0.261g FeSO to 40mL deionized water 4 ·7H 2 O and 0.015g CH 3 COONa, stirring and dissolving to obtain a reaction solution, then put the reaction solution into a 50mL polytetrafluoroethylene hydrothermal reaction kettle, heat the reaction at 120°C for 6h, then cool to room temperature to obtain the reaction solution; then centrifuge the obtained reaction solution, and use Ionized water and ethanol were washed three times respectively to obtain a light yellow product, and finally the light yellow product was dried at 60° C. for 12 hours to prepare α-FeOOH three-dimensional multi-level microspheres.

[0029] In this example, the product α-FeOOH three-dimensional multi-level microspheres were characterized by SEM, as image 3 As shown, the sample has a three-dimensional microsphere structure assembled by one-dimensional nanorods.

[0030] In this example, the obtained α-FeOOH three-dimensional multi-level microsphere structure was calcined at ...

Embodiment 3

[0032]In this example, 0.261g of FeSO was added successively to 40mL of deionized water 4 ·7H 2 O and 0.015g CH 3 COONa, stirring and dissolving to obtain a reaction solution, then put the reaction solution into a 50mL polytetrafluoroethylene hydrothermal reaction kettle, keep the reaction at 120°C for 12h, then cool to room temperature to obtain the reaction solution; then centrifuge the obtained reaction solution, and use Wash with deionized water and ethanol three times respectively to obtain a light yellow product, and finally dry the light yellow product at 60° C. for 12 hours to obtain a three-dimensional multi-level microsphere structure of α-FeOOH.

[0033] In this example, the product α-FeOOH three-dimensional multi-level microspheres were characterized by SEM, as Figure 4 As shown, the sample has a three-dimensional microsphere structure assembled by one-dimensional nanorods.

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Abstract

The invention belongs to the technical field of nanomaterial preparation, and relates to a preparation method for an alpha-FeOOH three-dimensional multi-grade microsphere.The three-dimensional multi-grade microsphere structure assembled by one-dimensional alpha-FeOOH nanorods is prepared by taking FeSO4.7H2O and CH3COONa as reaction raw materials and taking water as solvent through a hydrothermal synthesis method.The preparation process is simple, no special reaction equipment is needed, the reaction temperature is low, batched production is easily achieved, the microstructure of the product is controllable, and a potential value in studying on preparation and application of an iron oxide nanomateiral is achieved.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of nanomaterial preparation, and relates to a method for preparing α-FeOOH three-dimensional multilevel microspheres, in particular to a method for preparing α-FeOOH multilevel microspheres assembled from nanorods. [0003] Background technique: [0004] Iron oxide is an important inorganic oxide material, which has important applications in many fields such as glazes, paints, rubber, catalysts, magnetic materials, gas sensors, etc. Therefore, the preparation of iron oxide nanomaterials has attracted researchers Widespread concern. FeOOH is a very important precursor for the preparation of iron oxide. By preparing FeOOH with special morphology and then thermally decomposing it to obtain iron oxide nanomaterials with special morphology, the morphology, structure and properties of iron oxide materials can be studied. connection between. At present, the main method of preparing FeOOH is the chemical me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/02
CPCC01G49/02C01P2002/72C01P2004/03C01P2004/50C01P2004/61
Inventor 刘相红张军
Owner QINGDAO UNIV
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