Enhancing photocatalytic performance of heterostructure MoS2/g-C3N4 embeded in PAN frameworks by electrospining process

A ternary MoS2/g-C3N4/PAN heterostructure photocatalyst was synthesized via high temperature calcination and electrospining process. The photocatalytic tests results indicated that the obtained MoS2/g-C3N4/PAN products exhibited enhanced photocatalytic activity. Compared with M-MoS2/g-C3N4/PAN, g-C3N4/PAN and bulk MoS2/g-C3N4, the 1.9%-MoS2/g-C3N4/PAN sample exhibited the highest photocatalytic activity, and the degradation rate for RhB was about 3.6 times higher than that of bulk g-C3N4. The enhanced photocatalytic activity of 1.9%-MoS2/g-C3N4/PAN sample was mainly attributed to the formation of heterostructure between MoS2 and g-C3N4, which effectively suppressed the recombination of photogenerated charge carriers. Moreover, the one-dimensional mats structures of PAN nanofibers films made the composites more easily to reuse and recycle. Hence, this work can provide a good method for the design and preparation of novel visible-light-driven photocatalysts.