Preparation of MoS2-Ag/g-C3N4 Composite for Rhodamine B Degradation

Layered g-C3N4 was obtained through secondary calcination, and the MoS2-Ag/g-C3N4 catalyst was prepared via hydrothermal and light deposition methods. XRD, SEM and TEM results proved that the MoS2-Ag/g-C3N4 sandwich biscuit structure was successfully obtained, and the sharper diffraction peak of MoS2-Ag/g-C3N4 than g-C3N4 or MoS2 is attributed to the synergistic crystallinity effect. SPR effect of Ag increases the electron transport time, which effectively prolonging the survival time of electron-hole pairs. Compared the degradation performance of 10 mg/L rhodamine B (RhB) with different ratios of materials, 10 wt.% MoS2-Ag/g-C3N4 has the highest degradation property. The degradation rate remains at 87.2% under the best condition after four cycles proved that the MoS2-Ag/g-C3N4 composite possesses good stability.