In addition, from Fig. S4A, it is clear that the residue weight of WNP, p-WNP and Film was more than that of f-Film at 650◦C.This phenomenon indicates the existence of inorganic substances in WNP, p-WNP and Film. After the filtration of the p-WNP/AmimClsolution, most of the inorganic substance was removed, so the f-Film gave a less residue weight than WNP, p-WNP and Film. This result accords with the XRD and FTIR results in Figs. 3 and 4.