Abstract
A study demonstrates how the MoS 2 nanoflowers (NFs) are discovered for the first time to have a highly efficient piezo-catalyst effect, which can dramatically improve their degradation activity for destructing the organic dyes by imposing an ultrasonic wave in the dark. The piezoresponse force microscopy (PFM) reveals that a significant amount of piezoelectric potential generated on the edge sites of the abundantly single- and few-layer MoS 2 NFs. The ultra-high degradation activity of the MoS 2 NFs has been attributed to that of the electric field generated from the spontaneous polarization of the MoS 2 NFs, and induced the polar molecules in the Rhodamine-B (RB) dye solution to be absorbed on the polarized surface of the NFs.