RESUMO
In this article, cerium oxide nanoparticles (CeO2 NPs) and reduced graphene oxide nanocomposite have been fabricated through simple, easy and cost effective co-precipitation method. The structural, optical and morphological characterization provides the evidence of successful synthesis of CeO2 NPs and nanocomposite. X-ray photoelectron spectroscopic characterization provides useful information about the concentrations and proportions of Ce3+ and Ce4+ ions in nanoparticles as well as in nanocomposite. These studies provide an insight to understand enhanced photocatalytic activity of nanocomposite. The nanocomposite produces 81% photocatalytic degradation of methyl orange compared to only 45% degradation by CeO2 NPs alone.
RESUMO
In the title binaphthyl compound, C34H24Cl2O2, the dihedral angle between the two naphthyl ring systems (r.m.s. deviations = 0.016 and 0.035â Å) is 76.33â (8)°. The chloro-phenyl rings make dihedral angles of 58.15â (12) and 76.21â (13)° with the naphthyl ring to which they are linked. The dihedral angle between the planes of the two chloro-phenyl rings is 27.66â (16)°. In the crystal, C-Hâ¯O hydrogen bonds link mol-ecules into chains propagating along [1-10]. The chains are linked by C-Hâ¯π inter-actions, forming a three-dimensional framework.