Journal
MICROCHIMICA ACTA
Volume 188, Issue 6, Pages -Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-021-04847-5
Keywords
Titanium dioxide (TiO2); Rare-earth doping; Environmental monitoring; Modified electrode; Pesticide sensor
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Funding
- National Kaohsiung University of Science and Technology
- Deanship of Scientific Research at Princess Nourah bint Abdulrahman University through the Fast-track Research Funding Program
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A sensitive voltammetric sensor has been developed for detecting hazardous methyl parathion using graphene oxide@Ce-doped TiO2 nanoparticles. The sensor shows excellent sensitivity, selectivity, and long-term stability for real-time monitoring of environmental samples.
A sensitive voltammetric sensor has been developed for hazardous methyl parathion detection (MP) using graphene oxide@Ce-doped TiO2 nanoparticle (GO@Ce-doped TiO2 NP) electrocatalyst. The GO@Ce-doped TiO2 NPs were prepared through the sol-gel method and characterized by various physicochemical and electrochemical techniques. The GO@Ce-doped TiO2 NP-modified glassy carbon electrode (GCE) addresses excellent electrocatalytic activity towards MP detection for environmental safety and protection. The developed strategy of GO@Ce-doped TiO2 NPs at GCE surfaces for MP detection achieved excellent sensitivity (2.359 mu A mu M-1 cm(-2)) and a low detection limit (LOD) 0.0016 mu M with a wide linear range (0.002 to 48.327 mu M). Moreover, the fabricated sensor shows high selectivity and long-term stability towards MP detection; this significant electrode further paves the way for real-time monitoring of environmental quantitative samples with satisfying recoveries.Graphical abstract
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