Simple and Fast Approach for Synthesis of Reduced Graphene Oxide–MoS2 Hybrids for Room Temperature Gas Detection

The combination of two highly versatile materials as reduced graphene oxide (rGO) and molybdenum disulfide (MoS
₂
) forms the layered rGO–MoS
₂
hybrids that have great potential for sensing applications. In this paper, we developed a cost-effective, time-saving, and efficient microwave-assisted method to exfoliate rGO and MoS
₂
nanosheets in a powder mixture for the formation of rGO–MoS
₂
hybrids. The formation of hybrids with a combination of organic and inorganic 2-D layered materials offers new possibilities for the development of gas sensitive materials. The applied microwave treatment is a simple and fast process for the large-scale synthesis of rGO–MoS
₂
hybrids. The synthesized rGO–MoS
₂
hybrids were characterized by X-ray diffraction, scanning electron microscope, energy dispersive X-ray spectroscopy, Raman, X-ray photoelectron spectroscopy, and thermogravimetric analyses to determine the phase structure, surface morphology, defect formation, binding energy, thermal stability and so on. The synthesized rGO–MoS
₂
hybrids were tested for sensing application and showed the good performance to detect gases such as O
₂
, N
₂
, and NH
₃
at room temperature.