Synthesis method of superfine nanorod-baculariate SnO2 nano-materials

Abstract

The invention relates to a synthesis method of superfine nanorod-baculariate SnO2 nano-materials, which belongs to the technical field of materials. According to invention, technically, by taking simple water-alcohol which is a mixed solution friendly to the environment and human bodies as a solvent, a superfine nanorod-baculariate SnO2 one-dimensional nano-material is synthesized by using a hydrothermal reaction, and in the process of reaction, any toxic, harmful and volatile organic solvents such as acids, alkalis, surfactants, molding templates, catalysts and the like are not added as auxiliary solvents, therefore, the method has the characteristics of environmental friendliness, and harmlessness to the human body; and the principle of the method is implemented by that parameters such as the volume fraction of the water-alcohol, the concentration of a precursor solution, and the like are adjusted so as to form specific thermodynamic reaction conditions, and then a SnO2 nanocrystal, according to the self growth rule of the nanocrystal, and through a synergistic action process of an Ostwald ripening mechanism and directional assembling, generates a SnO2 nanorod one-dimensional nano-structured crystal. A superfine nanorod-baculariate SnO2 nano-material prepared according to the invention has good sensitivity to isopropyl alcohol, ethanol, acetone, methanol and formaldehyde gas, and according to the method, gas sensors can be manufactured.

Description

technical field [0001] The invention relates to a green, environment-friendly and harmless ultrafine nanorod cluster SnO 2 A method for synthesizing one-dimensional nanometer materials belongs to the technical field of materials. Background technique [0002] Due to the reduction of material dimensions and the reduction of structural feature size, one-dimensional nanomaterials such as nanorods and nanowires have significant surface and interface effects, small size effects, and quantum size effects, which make them novel and different from traditional materials. Unique electrical, magnetic, optical, thermal and other physical and chemical properties, they have broad application prospects in optoelectronic materials, sensors, catalysts, etc. At present, various one-dimensional nanomaterials, such as nanorods, nanowires, nanobelts, and nanotubes, have been synthesized one after another. As an important n-type semiconductor functional material with a wide bandgap (at T=300 K,...

AI Technical Summary

Problems solved by technology

However, some organic solvents often have toxic, harmful and volatile properties, such as heptane, hexanol, sodium lauryl sulfate, sodium hydroxide, potassium hydroxide, NH 4 (OH) and hydrochloric acid, etc., have significant negative effects on human health and the environment during use

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