Preparation of ultrafine grained copper nanoparticles via immersion deposit method

Abstract

Today, the exploration about synthesis of nanoparticles is much of interest to materials scientists. In this work, copper nanoparticles have been successfully synthesized by immersion deposit method in the absence of any stabilizing and reducing agents. Copper (II) sulfate pentahydrate as precursor salt and distilled water and Ethylene glycol as solvents were used. The copper nanoparticles were deposited on plates of low carbon steel. The effects of copper sulfate concentrations and solvent type were investigated. X-ray diffraction, scanning electron microscopy and UV-Visible spectroscopy were taken to investigate the crystallite size, crystal structure, and morphology and size distribution and the growth process of the nanoparticles of obtained Cu particles. The results indicated that the immersion deposit method is a particularly suitable method for synthesis of semispherical copper nanoparticles with the crystallites size in the range of ~22 to 37 nm. By increasing the molar concentration of copper sulfate in distilled water solvent from 0.04 to 0.2 M, the average particles size is increased from 57 to 81 nm. The better size distribution of Cu nanoparticles was achieved using a lower concentration of copper sulfate. By increasing the molar concentration of copper sulfate in water solvent from 0.04 to 0.2, the location of the SPR peak has shifted from 600 to 630 nm. The finer Cu nanoparticles were formed using ethylene glycol instead water as a solvent. Also, the agglomeration and overlapping of nanoparticles in ethylene glycol were less than that of water solvent.

Dual Role of Copper Nanoparticles in Bacterial Leaf Blight-Infected Rice: A Therapeutic and Metabolic Approach

“…33 UV−vis spectroscopic analysis showed a plasmon resonance peak at 609 nm that is in agreement with the characteristic resonance peak of CuNPs (Figure S1c). 34 The size distribution was analyzed by DLS and was found to be 70 nm (Figure S1d).…”

“…UV–vis spectroscopic analysis showed a plasmon resonance peak at 609 nm that is in agreement with the characteristic resonance peak of CuNPs (Figure S1c). The size distribution was analyzed by DLS and was found to be 70 nm (Figure S1d). The DLS pattern showed a single peak that revealed the evenness in size distribution and no mixture of particles.…”

Micro- and Nanoscale Spectroscopic Investigations of Threonine Influence on the Corrosion Process of the Modified Fe Surface by Cu Nanoparticles

“…In recent years, there has been a growing interest in the use of metallic nanoparticles of less than 100 nm in size [ 12 , 13 , 14 , 15 ]. Nanoparticles (NPs) have chemical and physical characteristic properties ascribed to their comparatively small size and high surface-area-to-volume ratio.…”

Improving the quality of polycaprolactone nanofibres using glass ionomer label 1

“…Morphology of leaf fibre depends on many parameters, such as its diameter and uniformity of electrospinning polymer fibres. These parameters are divided into three groups of polymer solution parameters, machine parameters, and environmental parameters [16].…”