Hydrothermally Grown MoS2 as an Efficient Electrode Material for the Fabrication of a Resorcinol Sensor

Recently, the active surface modification of glassy carbon electrodes (GCE) has received much attention for the development of electrochemical sensors. Nanomaterials are widely explored as surface-modifying materials. Herein, we have reported the hydrothermal synthesis of molybdenum disulfide (MoS2) and its electro-catalytic properties for the fabrication of a resorcinol sensor. Structural properties such as surface morphology of the prepared MoS2 was investigated by scanning electron microscopy and phase purity was examined by employing the powder X-ray diffraction technique. The presence of Mo and S elements in the obtained MoS2 was confirmed by energy-dispersive X-ray spectroscopy. Finally, the active surface of the glassy carbon electrode was modified with MoS2. This MoS2-modified glassy carbon electrode (MGC) was explored as a potential candidate for the determination of resorcinol. The fabricated MGC showed a good sensitivity of 0.79 mu A/mu Mcm(2) and a detection limit of 1.13 mu M for the determination of resorcinol. This fabricated MGC also demonstrated good selectivity, and stability towards the detection of resorcinol.

Automated summary

In recent years, the surface modification of glassy carbon electrodes using nanomaterials has gained significant attention for the advancement of electrochemical sensors. This study synthesized molybdenum disulfide (MoS2) through hydrothermal synthesis and investigated its electro-catalytic properties for the fabrication of a resorcinol sensor. The results showed that the MoS2-modified glassy carbon electrode exhibited excellent sensitivity and stability for detecting resorcinol.