|Title:||Hydrothermal synthesis of manganese sulfide decorated graphene oxide for effective electrochemical sensing of dopamine||Authors:||Hao, Qingli
Ye, Yi Ting
Chen, Shen Ming
Chen, Tse Wei
|Keywords:||Dopamine | Electrochemical sensor | Graphene oxide | LSV technique | MnS microspheres||Issue Date:||1-Jan-2019||Journal Volume:||14||Journal Issue:||1||Source:||International Journal of Electrochemical Science||Abstract:||
© 2019 The Authors. Microsphere like structured manganese sulfide decorated graphene oxide (MnS/GO) composites were synthesized by using simple hydrothermal method. The above prepared MnS/GO composite was characterized by using X-ray diffraction spectroscopy (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray analysis (EDX), and Raman spectroscopy. The obtained results confirmed the formation of MnS/GO composite with required stoichiometry and morphology. For the first time, MnS based materials were used as a modifier and dopamine as a model system for the electrochemical application. The electrochemical studies were performed for MnS/GO composite modified GCE using Cyclic Voltammetry (CV) and linear sweep voltammetry techniques. The results suggest that the effective response of MnS/GO/GCE with very low limit of detection (LOD) and sensitivity of 0.007 μM and 3.11 μA μM -1 cm -2 respectively. Moreover the selectivity results exhibited excellent interference property of MnS/GO/GCE towards sensing of dopamine. Moreover, the reported MnS/GO/GCE sensor exhibits excellent long cyclic stability, and selectivity and greater support for the real-time detection of DA in human urine samples. Thus, the proposed MnS/GO/GCE is believed as an excellent electrode material for the sensing of dopamine.
|Appears in Collections:||政治學系|
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