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Preparation method and application of multifunctional SnO2@C composite nanometer material

A composite nanomaterial and multi-purpose technology, applied in the field of multi-purpose SnO2@C composite nanomaterial preparation, can solve the problems of complexity, high production cost and equipment cost, complicated process, etc., achieve good reproducibility, convenient operation, low cost effect

Inactive Publication Date: 2011-05-11
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Preparation of SnO in existing patent 2 The method of @C composite nanomaterials is generally a multi-step reaction, the process is complicated, and the synthesis methods require complex equipment and fine operations, and the production cost and equipment cost are relatively high.

Method used

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  • Preparation method and application of multifunctional SnO2@C composite nanometer material
  • Preparation method and application of multifunctional SnO2@C composite nanometer material
  • Preparation method and application of multifunctional SnO2@C composite nanometer material

Examples

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Effect test

Embodiment 1

[0041] 0.005mol tin tetrachloride is dissolved in a mixed solvent of 30 milliliters of ethanol and 20 milliliters of ethylene glycol to form a homogeneous solution. The homogeneous solution is ignited, and the temperature during combustion is 400-500°C. After the solution is completely burned, to form SnO 2 @C, the yield is 95.8%.

[0042] Carry out phase identification to the product that embodiment 1 generates with Japan Shimadzu XRD-6000 type X-ray powder diffractometer (Cu target, Kα ray, λ=0.154060nm, scanning speed 0.02 ° / S), its XRD pattern (X-ray powder diffraction pattern), such as figure 1 shown. The diffraction peaks of all X-ray diffraction patterns compared with the JCPDS standard card (41-1445) can be consistent with the tetragonal tin dioxide. Strong diffraction peaks indicate that SnO 2 is highly crystalline. exist figure 1 In the X-ray diffraction pattern, no characteristic absorption peaks of impurities were found, which indicated that the prepared prod...

Embodiment 2

[0046] 0.005mol of tin tetrachloride is dissolved in 50ml of ethanol to form a homogeneous solution. The homogeneous solution is ignited. The temperature during combustion is 400-500°C. After the solution is completely burned, SnO can be formed. 2 @C.

[0047] Get 0.1g of the product produced in Example 2 in 20ml of ethanol, after ultrasonic dispersion in an ultrasonic cleaner for 5min, drop it on a copper sheet and dry it in the air; adopt a Japanese Hitachi S-4800 type field emission scanning electron microscope to analyze the initial particle size and shape Looks like Figure 2b shown.

Embodiment 3

[0049] 0.005 mol of tin tetrachloride is dissolved in a mixed solvent of 20 milliliters of ethanol and 30 milliliters of ethylene glycol to form a homogeneous solution. The homogeneous solution is ignited, and the temperature during combustion is 400-500 ° C. After the solution is completely burned, to form SnO 2 @C.

[0050] Get 0.1g embodiment 3 produced product in 20ml ethanol, after ultrasonic dispersion 5min in the ultrasonic cleaner, be dropped on the copper sheet and dry; Adopt Japan Hitachi S-4800 type field emission scanning electron microscope to analyze particle primary particle size and shape Looks like Figure 2c shown.

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Abstract

The invention discloses a preparation method and application of a multifunctional SnO2@C composite nanometer material. Pinksalt is dissolved in monohydric lower alcohol or a mixed solvent of monohydric alcohol and dihydric alcohol to form a homogeneous mixed solvent; then the mixed solvent is burnt and the temperature during burning is 400-800 DEG C; and the weight / volume (g / ml) ratio of the pinksalt to the mixed solvent is 1:2-100. Compared with the prior art, complex equipment and operations do not need in the invention; reaction conditions are mild and easily controlled; products can be obtained under room temperature, have low cost, and are friendly to environment; meanwhile, the products in the invention can be served as anode materials of lithium ion batteries, and can also be served as adsorbents of heavy metal ions Pb and Cd, and photocatalytic degradation catalysts of organic dyes like safranine T, and the like.

Description

technical field [0001] The invention belongs to the preparation method and application of nanomaterials, in particular to a multipurpose SnO 2 Preparation methods and applications of @C composite nanomaterials. Background technique [0002] Materials with nanometer size have many properties possessed by original bulk materials in terms of optical, electrical, magnetic and catalytic properties. Tin dioxide is one of the important semiconductor materials, widely used in photocatalysis, transparent conductive film, gas sensor, solar energy conversion, etc. As a semiconductor material, the smaller the particle size, the more atoms on the surface, and the more obvious the nanometer performance of the material. [0003] The methods for preparing nano-tin dioxide include hydrothermal / solvothermal method, microwave-assisted synthesis method, sol-gel method, precipitation method and so on. Most of these preparation methods require complex experimental equipment and delicate experi...

Claims

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Application Information

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IPC IPC(8): H01M4/139H01M4/36B82Y40/00
CPCY02E60/10
Inventor 倪永红朱燕
Owner ANHUI NORMAL UNIV
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