We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Highly sensitive electrochemical sensor based on zirconium oxide-decorated gold nanoflakes nanocomposite 2,4-dichlorophenol detection.
- Authors
Ha, Vu Thi Thu; Nguyen, Manh B.; Tam, Tran Nhu; Thu, Vu Thi; Yen, Pham Thi Hai; Phong, Pham Hong; Nhiem, Dao Ngoc; Hung, Le Quoc; Hai, Tran Quang
- Abstract
In this study, a sensitive and selective electrochemical sensor based on a zirconia oxide-decorated gold nanoflake nanocomposite-modified glassy carbon electrode (AuNP/ZrO2/GCE) for the detection of 2,4-dichlorophenol (2,4-DCP) was developed. ZrO2 was first synthesized using the sol–gel method and then drop-cast onto the electrode surface, followed by electrodeposition of AuNPs by chronoamperometry under acidic conditions. The as-prepared ZrO2 nanoparticles had porous structures with pore sizes of 3.25 nm and particle sizes of 20–30 nm. The combination of an electrocatalytic and porous material ZrO2 and a highly conductive material AuNPs might help to improve the electrochemical signals. Under the optimal conditions, the AuNP/ZrO2/GCE sensor is able to detect 2,4-DCP in a water environment at a detection limit as low as 0.053 µM within a wide linear range from 1.5 to 24 µM. The developed sensor was also employed for real samples collected from West Lake and showed good recoveries (95.4–101.8%). This is valuable when considering practical field applications of the sensor, especially in terms of on-site measurements.
- Subjects
ELECTROCHEMICAL sensors; POROUS materials; ZIRCONIUM; CARBON electrodes; NANOCOMPOSITE materials; CHLOROPHENOLS; ZIRCONIUM oxide
- Publication
Journal of Applied Electrochemistry, 2022, Vol 52, Issue 3, p607
- ISSN
0021-891X
- Publication type
Article
- DOI
10.1007/s10800-021-01655-w