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A sea urchin-like three-dimensional fe3o4/sno2 nanorod array and its synthesis method and application

A technology of nanorod array and synthesis method, which is applied in the field of sea urchin-like three-dimensional Fe3O4/SnO2 nanorod array and its synthesis, achieving the effects of mild conditions, easy control, and stable product shape

Inactive Publication Date: 2019-05-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there are few reports in the literature on the use of ferroferric oxide as the base, which is combined with tin dioxide to form a three-dimensional sea urchin-like structure, and at present, there are few reports on its use in the field of adsorption and photocatalysis, and the adsorption and photocatalysis activities need to adjust the temperature. , pH and other conditions to achieve the optimal value

Method used

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  • A sea urchin-like three-dimensional fe3o4/sno2 nanorod array and its synthesis method and application
  • A sea urchin-like three-dimensional fe3o4/sno2 nanorod array and its synthesis method and application
  • A sea urchin-like three-dimensional fe3o4/sno2 nanorod array and its synthesis method and application

Examples

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Effect test

Embodiment 1

[0043] A sea urchin-like three-dimensional Fe 3 o 4 / SnO 2 The synthesis method of the nanorod array is as follows:

[0044] Step 1: Weigh 0.2g of Fe with a particle size of 500nm 3 o 4 Place in 50mL beaker A, add 40mL0.005MSnCl·5H 2 In O, sonicate for 30 minutes, mix well, let stand for 12 hours, rinse with ethanol once, and dry at 85°C for 1 hour.

[0045] The second step: put the product in A into 35mL by SnCl 4 ·5H 2 O, NaOH and SDS molar ratio of 1:20:4 in the mixed solution, ultrasonic dispersion until completely dissolved, placed in a 50mL reactor at 200 ° C for 20h.

[0046] The third step: wash the above product with absolute ethanol and deionized water alternately several times, and dry it under vacuum at 60°C for 12 hours. SEM of the resulting product as figure 1 shown. Fe with different particle sizes 3 o 4 Synthetic Fe 3 o 4 / SnO 2 , products such as figure 2 Shown, the substrate Fe used in this embodiment 3 o 4 TEM and product Fe 3 o 4 / SnO 2 ...

Embodiment 2

[0052] A sea urchin-like three-dimensional Fe 3 o 4 / SnO 2 The synthesis method of the nanorod array is as follows:

[0053] Step 1: Weigh 0.2g of Fe with a particle size of 500nm 3 o 4 Place in 50mL beaker A, add 40mL0.005MSnCl·5H 2 In O, sonicate for 30 minutes, mix well, let stand for 12 hours, rinse with ethanol once, and dry at 85°C for 1 hour.

[0054] The second step: put the product in A into 35mL by SnCl 4 ·5H 2 O, KOH and SDS in a mixed solution with a molar ratio of 1:20:2, ultrasonically dispersed until completely dissolved, and placed in a 50mL reactor at 200°C for 20h.

[0055] The third step: wash the above product with absolute ethanol and deionized water alternately several times, and dry it under vacuum at 60°C for 12 hours.

[0056] The Fe obtained by the above method 3 o 4 / SnO 2 The material is used in sewage treatment.

Embodiment 3

[0058] A sea urchin-like three-dimensional Fe 3 o 4 / SnO 2 The synthesis method of the nanorod array is as follows:

[0059] Step 1: Weigh 0.2g of Fe with a particle size of 500nm 3 o 4 Place in 50mL beaker A, add 40mL0.005MSnCl·5H 2 In O, sonicate for 30 minutes, mix well, let stand for 12 hours, rinse with ethanol once, and dry at 85°C for 1 hour.

[0060] The second step: put the product in A in 35mL by SnCl 4 ·5H 2 O, NH 4 OH and SDS in a mixed solution with a molar ratio of 1:25:1, ultrasonically dispersed until completely dissolved, and placed in a 50mL reactor at 200°C for 20h.

[0061] The third step: the above product was alternately washed several times with absolute ethanol and deionized water, and dried in vacuum at 60° C. for 12 hours.

[0062] The Fe obtained by the above method 3 o 4 / SnO 2 The material is used in sewage treatment.

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Abstract

The invention relates to a sea urchin-like three-dimensional Fe 3 O 4 / SnO 2 Nanorod arrays and their synthesis methods and applications. Specifically, the present invention uses common ferric oxide and tin tetrachloride as precursors, and synthesizes for the first time a multifunctional nanorod array integrating adsorption and photocatalytic functions through a simple two-step growth method. Sea urchin-like three-dimensional Fe 3 0 4 / SnO 2 Composite materials and achieve control over product morphology. Compared with the existing technology, the present invention uses cheap and easily available materials, has a simple process, universal preparation conditions, stable product morphology, high purity, and simple product processing, and is suitable for medium-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanomaterials, in particular to a sea urchin-shaped three-dimensional Fe 3 o 4 / SnO 2 Nanorod arrays and their synthesis methods and applications. Background technique [0002] The use of adsorbents to adsorb organic pollutants and heavy metal ions and the use of semiconductor-based photocatalytic materials for photocatalytic degradation of organic pollutants are currently the most studied technologies. However, when it is applied in the sewage treatment process, the characteristics of difficult separation and recovery greatly restrict its wide application. The magnetic separation technology of photocatalysts is an ideal solution. [0003] Tin dioxide as a wide bandgap (E g =3.6eV) semiconductor materials, widely used in gas sensing, lithium-ion batteries, catalysis, adsorption and other fields. Due to the excellent photoelectric characteristics, chemical stability and non-toxicity of tin ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/06B01J20/28B01J20/30C02F1/28C02F1/30B01J23/835
CPCB01J20/06C02F1/281C02F1/30B01J20/28042B01J23/002B01J23/835B01J35/33B01J35/40B01J35/39
Inventor 陈云李静吴庆生
Owner TONGJI UNIV
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