Preparing Cuprous Iodide Nanocolloid by the Electrical Spark Discharge Method

In this study, the electric spark discharge method was used to prepare a cuprous iodide nanocolloid (CuINC); specifically, an electrical discharge machine was used to prepare a CuINC under five sets of pulse width modulation (Ton–Toff) parameters, and ultraviolet–visible spectrophotometry and a zeta...

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Bibliographic Details
Published in:Journal of cluster science 2022-09, Vol.33 (5), p.2069-2075
Main Authors: Tseng, Kuo-Hsiung, Lin, Wei-Jhih, Chung, Meng-Yun, Tien, Der-Chi, Stobinski, Leszek
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Copper
Copper wire
Crystal structure
Cuprous iodide
Deionization
Electric discharges
Electric fields
Electric sparks
Electrodes
Energy
Heat
High temperature
Inorganic Chemistry
Iodine
Methods
Molecular structure
Nanochemistry
Nanoparticles
Nanotechnology
Original Paper
Parameters
Physical Chemistry
Pulse duration modulation
Spectrophotometry
Trace elements
Zeta potential
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Summary:In this study, the electric spark discharge method was used to prepare a cuprous iodide nanocolloid (CuINC); specifically, an electrical discharge machine was used to prepare a CuINC under five sets of pulse width modulation (Ton–Toff) parameters, and ultraviolet–visible spectrophotometry and a zetasizer were used to evaluate the most suitable parameter set. Copper wires were used as electrodes (copper content = 99.7%, diameter = 1 mm), and deionized water mixed with iodine was used as the dielectric fluid. The analysis results indicated that the CuINC prepared under Ton–Toff = 10–10 µs had absorbance of 1.8 and a zeta potential of − 31.9 mV. The resultant CuINC had the highest concentration and suspension stability; this indicated that Ton–Toff = 10–10 µs is the most suitable parameter combination for preparing a CuINC. X-ray diffraction revealed a complete CuI crystal structure. Transmission electron microscopy images showed that most of the CuI nanoparticles were smaller than 5 nm and that the nanoparticles were evenly dispersed. The electric-discharge-based production process employed in this study is rapid and simple, and the end products have favorable suspension power. The method is a safe, environmentally friendly, and rapid method of preparing CuINCs.
ISSN:1040-7278
1572-8862
DOI:10.1007/s10876-021-02127-z