Journal
ULTRASONICS SONOCHEMISTRY
Volume 68, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2020.105071
Keywords
Sonochemical approach; Graphitic carbon nitride; Electrochemical detection; Bimetal oxide; ZnFe2O4; Toxic chemical sensor
Categories
Funding
- King Saud University, Riyadh, Saudi Arabia [RSP2019/1]
- Ministry of Science and Technology, Taiwan [MOST 107-2113-M-027-005-MY3]
- National Taipei University of Technology
- Mackay Memorial Hospital Joint Research Program [NTUT-MMH-10901]
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Nanoball-structured ferromagnetic zinc ferrite nanocrystals (ZnFe2O4 NPs) entrapped with graphitic-carbon nitride (g-C3N4) was produced via straightforward and facile sonochemical synthetical technique (titanium probe; 100 W/cm(2) and 50 KHz). The morphological (SEM), elemental (EDS), diffraction (XRD), XPS, and electrochemical studies (CV) have been carry out to verify the nanostructure and shape of the materials. The ZnFe2O4 NPs/g-C3N4 electrode (GCE) was constructed which displayed outstanding electrochemical ability towards toxic 4-nitrophenol (NTP). A sensitive, selective, reproducible, and durable electrochemical NTP sensor was developed by ZnFe2O4 NPs/g-C3N4 modified electrode. The modified sensor exhibited a high sensitivity and 4.17 nanomolars of LOD. It's greater than the LOD of previously reported NTP modified sensors. The real-time experiments of the modified electrochemical (ZnFe2O4 NPs/g-C3N4 electrode) sensor were successfully explained in various water (river and drinking) samples and its showed high standard recoveries. Therefore, sonochemical synthetical method and fabrication of modified electrode were developed this work based on environmental analysis of NTP sensor.
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