Study of photocatalytic and electrocatalytic activities of calcium tungstate nanoparticles synthesized via surfactant-su
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Study of photocatalytic and electrocatalytic activities of calcium tungstate nanoparticles synthesized via surfactant-supported hydrothermal method Somayeh Mirsadeghi1,* , Hamed Zandavar2, Hamed Farhad Tooski2, Hamid Reza Rajabi3, Mehdi Rahimi-Nasrabadi4,5, Esmail Sohouli6, Mohammad Reza Ganjali7,8, and Seied Mahdi Pourmortazavi2,* 1
Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, 1411713137 Tehran, Iran 2 Faculty of Chemistry and Chemical Engineering, Malek Ashtar University of Technology, Tehran, Iran 3 Chemistry Department, Yasouj University, 75918-74831 Yasouj, Iran 4 Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran 5 Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, Iran 6 Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran 7 Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran 8 Endocrinology & Metabolism Molecular-Cellular Sciences Institute, Biosensor Research Center, Tehran University of Medical Sciences, Tehran, Iran
Received: 31 May 2020
ABSTRACT
Accepted: 23 September 2020
Here, calcium tungstate nanoparticles (CWONPs) were synthesized by the hydrothermal method. The reaction parameters including calcium salt concentration, surfactant concentration, reaction time and temperature have been optimized by Taguchi Design Method for smaller particles size. The morphology, size, crystallinity and chemical structure of nanoparticles were investigated by different methods. The optimized calcium tungstate nanoparticles (optCWONPs) with average size of 51 nm were showed outstanding removal effectiveness for three different pollutants including methyl orange, imipenem and imatinib mesylate over UV illumination. Nearly, 100% of methyl orange, 98% of imipenem and 60% of imatinib mesylate are degraded at 1800s over optCWONPs with banggap 3.7 eV. In addition, a modified carbon paste electrode was formed with opt-CWONPs and linear sweep voltammetry was used to analyze its electrocatalytical activity in acidic media. The findings showed that the carbon paste electrode modified by opt-CWONPs had a higher current density in the hydrogen evolution reaction (HER) than the bare carbon paste electrode. This article has subsequently revealed a revolutionary method for opt-
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Springer Science+Business
Media, LLC, part of Springer Nature 2020
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https://doi.org/10.1007/s10854-020-04545-7
J Mater Sci: Mater Electron
CWONPs preparation and demonstrated its multifunctionality as photocatalyst and electrocatalyst active ingredients.
1 Introduction Metal salt nanomaterials have been particularly developed in different sciences today [1–3]. They are considered due to their diverse magnetic, optical, electrical and catalytic properties, which aris
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