Sensitive and Selective Electrochemical Sensor for Antimony Using Boron-doped Diamond Nanoparticles
Document Type
Article
Publication Date
1-1-2023
Abstract
In this study, boron-doped diamond nanoparticles modified on the surface of a screen-printed electrode (SPE) were prepared for the sensitive and selective determination of Sb3+ using square wave voltammetry. The effect of electrochemical parameters such as the type of supporting electrolyte, pH, signal per background, and scan rate on the sensitivity of the sensor for the detection of Sb3+ was investigated. Under optimized conditions with an amplitude of 0.05 V, a frequency of 50 Hz, and an E-step of 0.05 V, the square wave voltammogram between -1.0 and 1.0 V gave a limit of detection of 2.41 x 10(-8) M for an Sb3+ concentration range from 0.19 to 0.59 mu M. The method was used to determine Sb3+ ions in river water with satisfactory results. The modified electrode displayed benefits such as high sensitivity and selectivity, long-term stability, easy preparation, and wide linear range.
Keywords
antimony, boron-doped diamond, screen-printed electrode, clean water
Divisions
CHEMISTRY,nanotechnology
Funders
Direktorat Riset, Teknologi, dan Pengabdian Kepada Masyarakat, Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi Republik Indonesia 2023 with contract number 1339/UN3.LPPM/PT.01.03/2023
Publication Title
Sensors and Materials
Volume
35
Issue
12, SI
Publisher
MYU K.K.
Publisher Location
1-23-3-303 SENDAGI, TOKYO, 113-0022, JAPAN