Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7139212 | Sensors and Actuators B: Chemical | 2018 | 39 Pages |
Abstract
A new type of terbium diselenide (Tb2Se2) was prepared in the structure of nano octagon and integrated with oxidized carbon nanofiber (f-CNF) by using a simple hydrothermal technique. The oxidation of CNF and the formation of f-CNF/Tb2Se2 nanocomposite were studied by using various analytical techniques such as TEM, FT-IR, Raman, XRD and XPS analysis. In addition, the electrochemical properties of f-CNF/Tb2Se2 nanocomposite modified glassy carbon electrode (GCE) were studied by using the electrochemical techniques such as CV and DPV techniques, which showed low charge transfer resistance (Rctâ¯=â¯7.26â¯Î©) and high active surface area (Aâ¯=â¯0.113â¯cm2). Meanwhile, the CV of ferricyanide at this electrode showed a low peak potential separation (ÎEpâ¯=â¯0.060â¯V). Furthermore, the reported f-CNF/Tb2Se2/GCE exhibited an excellent electrochemical activity towards the detection of morin. As expected, f-CNF/Tb2Se2/GCE exhibited high sensitivity (1.07â¯Î¼A μMâ1â¯cmâ2) and acceptable detection limit (0.6â¯Î¼M) of morin. In addition, f-CNF/Tb2Se2/GCE was found with feasible selectivity, stability, and reproducibility. Finally, the real sample analysis also stated the exclusive performance of f-CNF/Tb2Se2/GCE electrode towards the detection of morin in guava leaves extract.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Ramaraj Sukanya, Mani Sakthivel, Shen-Ming Chen, Tse-Wei Chen,