▎ 摘　　要

One-pot green approach to the synthesis of Prussian blue nanocubes/reduced graphene oxide (PBNCs/RGO) nanocomposite had been attempted. It was based on the extract of mushroom with K-3[Fe(CN)(6)] and graphene oxide (GO) as precursors, where the reduction of GO and the deposition of PBNCs occurred simultaneously. The obtained nanocomposite was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy and electrochemical techniques. With the introduction of beta-cyclodextrin (beta-CD), the beta-CD/PBNCs/RGO system showed linear behavior in the range from 0.01 to 700 mu M for 4-nitrophenol with a low detection limit of 2.34 nM (S/N = 3). (C) 2014 Elsevier B.V. All rights reserved.