Title: Novel quantification for silver ion generated by the submerged arc discharge method

Authors: Kuo-Hsiung Tseng; Chih-Ju Chou; Sheng-hao Shih; Der-Chi Tien; Hsueh-Chien Ku; Leszek Stobinski

Addresses: Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan ' Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan ' Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan ' Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan ' Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan ' Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland

Abstract: This study used the submerged arc discharge method (SADM) to produce metal fluid containing nanoparticles and submicron particles, whereby the energy focused by an electric arc was used to dissolve silver metal in deionised water. No additional chemical substances were required throughout the process, which enabled production to be fast and straightforward. Conventional concentration measurement of silver ions (Ag⁺) uses 200 ml of sample solution for every test wherein the Ag⁺ revert to atoms, resulting in the incapacity of the solution to be reused. This study devised a new quantification method that requires only a trace amount (6 ml) of Ag⁺ solution and used equations and data from electrical conductivity, concentration and ultraviolet-visible (UV-Vis) absorption values to determine their respective relationships with Ag⁺ concentration, after which the solution can still be reused.

Keywords: submerged arc discharge method; SADM; electrical conductivity meter; ultraviolet-visible spectrophotometer; zeta potential; nanosilver; silver ions; micro-discharge machine system; absorbance.

DOI: 10.1504/IJMPT.2019.097676

International Journal of Materials and Product Technology, 2019 Vol.58 No.2/3, pp.239 - 255

Accepted: 03 Oct 2018
Published online: 04 Feb 2019 *

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