Highly efficient degradation of dyes by reduced graphene oxide–ZnCdS supramolecular photocatalyst under visible light

The assembly of ZnCdS nanoparticles decorated on a 2D platform of reduced graphene oxide (RGO) sheets by a one-pot ionic-liquid-assisted hydrothermal process is reported. The preparation of RGO and the intimate interfacial contact between ZnCdS nanoparticles and the RGO sheets are achieved simultaneously. The structure and composition of the obtained nanocomposites were studied by means of Fourier transform infrared spectrometery, Raman spectrometery, Thermogravimetric analysis, X-ray diffraction, Scanning electronic microscopy and Transmission electron microscopy. The as-prepared RGO-based nanocomposites show excellent photocatalytic activities toward the photo-degradation of organic dyes.