a co 3 o 4 Nanoparticle particle size detection method

Abstract

The invention discloses a method for detecting the granularity of Co3O4 nano particles. The method comprises the following steps: preparing a KBr blank sheet, utilizing an infrared spectrometer to collect the background spectrum; mixing Co3O4 nano particle with KBr powder, pressing the mixture into a tablet, scanning the tablet by the infrared spectrometer to obtain a sample spectrum; processing the sample spectrum, and observing the sample spectrum, if there is a prominent peak in the wavelength of 1384.1 cm<-1>, the granularity of the sample is less than 50 nanometers, and if the result is negative, the granularity is more than 50 nanometers. The surface enhancing effect is utilized. Nano Co3O4 particles with a granularity less than 50 nanometers can easily generate a surface enhancing effect in an infrared spectrum. The detection cost is low. The method is simple and easy to carry out. The characterization range is large. The Co3O4 micrometer particles and Co3O4 nano particles can be rapidly differentiated. The granularity of Co3O4 nano particles can be simply and rapidly detected. The method can quickly judge whether the particle size of a Co3O4 particle is less than 50 nanometers or not, in a lab or in industry, no matter the Co3O4 particle is prepared, purchased, or to be used.

Description

technical field [0001] The invention relates to the field of detection of nanoparticles, in particular to a Co 3 o 4 Nanoparticle size detection method. Background technique [0002] Nanoparticles generally refer to particles with a size between 1 nm and 100 nm. Due to their small particle size and large specific surface area, they have quantum size effects, volume effects, surface and interface effects, macroscopic quantum tunneling effects, and dielectric confinement. Effect and other specific effects, and thus derive many physical and chemical properties that traditional solids do not have. Scientists predict that the birth of nanoparticles will realize a leap in production methods and will have a significant and far-reaching impact on the development and progress of human society. [0003] Nano Co 3 o 4 It is a spinel transition metal oxide with important uses in engineering technology. It has attracted much attention because of its wide application in many fields s...

AI Technical Summary

Problems solved by technology

However, the instruments used in these analysis methods are often expensive, complicated to operate, and the cost of characterization is high, and high-resolution microscopes are often difficult to achieve large-scale observation, which cannot meet the needs of actual material characterization

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