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All Journal JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya
Fauziatul Fajaroh
Department of Chemistry, Faculty of Mathematics and Science, State University of Malang, Indonesia
Biochemistry, Genetics & Molecular Biology

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Electrochemical Synthesis of Nickel Hydroxide Ni(OH)2 Nanoparticles Solution for Detecting Mercury (Hg) Yanatra Budi Pramana; Djoko Adi Walujo; Marianus Subandowo; Indah Nurhayati; Fauziatul Fajaroh; Krisyanti Budipramana
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 5 No. 2 (2021)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v5i22021p008

Abstract

Nickel hydroxide Ni(OH)2 nanoparticles were used as sensors for mercury (Hg) in water using a UV-Visspectrophotometer instrument. The synthesis of Ni(OH)2 nanoparticles was carried out by electrochemical method using nickel plates as anode and cathode and the process was operated at constant voltage of 25 V for 30 minutes. In this study, 2 variations of the concentration of Ni(OH)2 nanoparticles were used, namely (5 mL and 4 mL) to detect mercury at concentrations of 10 ppm, 40 ppm, and 50 ppm. Changes in the absorbance value of Ni(OH)2 nanoparticles will be observed. From the observations, there was a decrease in the absorbance value of Ni(OH)2 nanoparticles along with the increase in mercury concentration. The decrease in the absorbance value of Ni(OH)2 nanoparticles is directly proportional to the amount of mercury concentration. The detection limit value was obtained at a volume of 5 mL and 4 mL are 45 ppm, and 35 ppm.
Co-Authors Djoko Adi Walujo Indah Nurhayati Krisyanti Budipramana Subandowo, Marianus Yanatra Budi Pramana