A kind of preparation method of hierarchical hollow cubic tin dioxide nanoparticles

A nanoparticle, tin dioxide technology, applied in tin oxide and other directions, can solve the problems of difficult preparation of non-spherical tin dioxide, difficulty in growing and designing materials, lengthy preparation process, etc., and achieve low cost, low price and high chemical activity. Effect

Inactive Publication Date: 2018-01-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that, compared with spherical structures, due to the lack of non-spherical templates, the lengthy preparation process and the accompanying high cost, and the difficulty in growing design materials on the high-curvature edges of the templates, non-spherical two The preparation of tin oxide is still difficult

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  • A kind of preparation method of hierarchical hollow cubic tin dioxide nanoparticles
  • A kind of preparation method of hierarchical hollow cubic tin dioxide nanoparticles
  • A kind of preparation method of hierarchical hollow cubic tin dioxide nanoparticles

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Embodiment 1

[0030] Weigh 17mg of ZnO, 240mg of NaOH, 292mg of CTAB and 210mg of SnCl 4 , then dissolve ZnO, NaOH, and CTAB with 25mL deionized water and stir for 5min, then dissolve SnCl with 5ml deionized water 4 , and then add the SnCl4 solution dropwise to the aqueous solution containing ZnO, NaOH, and CTAB, fully stir for 10 minutes and then let it stand for 24 hours, then stir the solution for 5 minutes and then transfer it to a hydrothermal reaction kettle, and conduct a hydrothermal reaction at 180°C for 12 hours. After the reaction, wash with deionized water and absolute ethanol for three times each, and then dry the precipitate at 60°C in an air atmosphere to collect hierarchical hollow cube-shaped tin dioxide nanoparticles composed of ultrafine nanorods. The scanned picture See attached figure 1 , the transmission scan picture is attached figure 2 .

[0031] The X-ray diffraction pattern of the hierarchical hollow cube-shaped tin dioxide nanoparticles composed of one-dimensi...

Embodiment 2

[0033] Weigh 17mg of ZnO, 240mg of NaOH, 292mg of CTAB and 210mg of SnCl 4 , then dissolve ZnO, NaOH, and CTAB with 25mL deionized water and stir for 5min, then dissolve SnCl with 5ml deionized water 4 , and then add the SnCl4 solution dropwise to the aqueous solution containing ZnO, NaOH, and CTAB, stir well for 10 minutes and then let it stand for 24 hours, then stir the solution for 5 minutes and then transfer it to a hydrothermal reaction kettle for 12 hours at 200°C. After the reaction was completed, each was washed three times with deionized water and absolute ethanol, and then the precipitate was dried at 60°C in an air atmosphere, and the hierarchical hollow cubic tin dioxide nanoparticles composed of nanosheets and nanorods were collected. The scanned picture is attached Figure 5 , the transmission scan picture is attached Image 6 .

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Abstract

The invention relates to a preparation method for a hierarchical hollow cubic stannic oxide nanometer particle composed of ultrafine nano-rods and belongs to the technical field of nanometer material preparation. The method comprises the following steps: taking solid cubic zinc hydroxystannate as a precursor, covering a layer of stannic oxide nano-rods on the surface of the zinc hydroxystannate after the hydrothermal reaction for a period of time, and meanwhile, decomposing the inner zinc hydroxystannate, thereby acquiring the hierarchical hollow cubic stannic oxide nanometer particle composed of the ultrafine nano-rods in the shape similar to the shape of zinc hydroxystannate. Compared with the traditional template method, the preparation method has the advantages of low cost, few steps and simple operation; the prepared hollow stannic oxide nanometer particle has an obvious hierarchical structure and a mesoporous structure, is difficult to agglomerate, is excellent in crystallinity and is high in specific surface area; the hierarchical hollow cubic stannic oxide nanometer particle is composed of a large quantity of orderly arrayed nano-rods and the size of the nano-rods is close to the debye length; the air-sensitive characteristic is excellent; and the hierarchical hollow cubic stannic oxide nanometer particle has a potential application value in the field of air-sensitive sensors.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a method for preparing hierarchical hollow cubic tin oxide nanoparticles composed of ultrafine nanorods. This type of hierarchical hollow structure exhibits excellent performance in the field of gas sensors. gas-sensing performance. Background technique [0002] In recent years, hierarchical hollow structure nanomaterials with various morphologies have received more and more attention in the fields of fundamental research and practical applications. Its applications include drug delivery, catalysis, gas sensing, clean energy conversion, energy storage, etc. Today, the best way to prepare a well-formed hollow structure consists of coating the desired material on a removable template, or transforming it with preformed particles according to different principles (chemical displacement method, Kirkendall effect, acid-base etching, etc.) generate. Altho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/02
CPCC01G19/02C01P2002/72C01P2004/03C01P2004/04C01P2004/38C01P2004/62
Inventor 曾毅王艳哲郑伟涛
Owner JILIN UNIV
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