Hydrothermal preparation and electrochemical sensing properties of TiO(2)-graphene nanocomposite.
A facile hydrothermal method has been developed and shown to be effective for the preparation of TiO(2)-graphene nanocomposite. The as-prepared nanocomposite was characterized using FT-IR spectroscopy, powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). The TiO(2)-graphene modified glassy carbon electrode (GCE) exhibited remarkable electron transfer kinetics and electrocatalytic activity toward the oxidation of dopamine (DA). Furthermore, the oxidation of common interfering agent such as ascorbic acid (AA) was significantly suppressed at this modified electrode, which resulted in good selectivity and sensitivity for electrochemical sensing of DA. These results demonstrate that the TiO(2)-graphene hybrid material has promising potential applications in electrochemical sensors and biosensors design.
College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, PR China. yfanchem@gmail.com
Yang
Y
Fan
Hai-Ting
HT
Lu
Jin-Hang
JH
Liu
Chun-Peng
CP
Yang
Qiang-Shan
QS
Jing
Yu-Xia
YX
Zhang
Xing-Kun
XK
Yang
Ke-Jing
KJ
Huang
D001205:Ascorbic Acid / Q000032:analysis; D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D004298:Dopamine / Q000032:analysis; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D005898:Glass / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D010084:Oxidation-Reduction; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D014025:Titanium / Q000737:chemistry*; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction
D014867:Water; C009495:titanium dioxide; D002244:Carbon; D006108:Graphite; D014025:Titanium; D001205:Ascorbic Acid; D004298:Dopamine