After the high resolution TEM observing of silver TNPs before and after being reacted with iodide (Fig. 2), we found that the sil-ver TNPs transformed as fused nanoparticles after interaction with iodide, but not circular nanoplates. Elemental analysis of the fused nanoparticles showed that they are silver nanoparticles adsorbed less iodide on the particles surface (Supporting Information, Fig.S1–S2). Thus, the morphological transformation of silver TNPs inthe presence of iodide shows a pathway that fusing the plates of silver TNPs to nanoparticles that is a unique phenomenon differentfrom the previously reported phenomenon of etching [55,56,58]. Adrawing of the possible morphological transformation mechanismwas showed in Fig. 3.