Enhanced charge separation in TiO/nanocarbon hybrid photocatalysts through coupling with short carbon nanotubes.

The interfacial contact between TiO and graphitic carbon in a hybrid composite plays a critical role in electron transfer behavior, and in turn, its photocatalytic efficiency. Herein, we report a new approach for improving the interfacial contact and delaying charge carrier recombination in the hybrid by wrapping short single-wall carbon nanotubes (SWCNTs) on TiO particles (100 nm) a hydration-condensation technique. Short SWCNTs with an average length of 125 ± 90 nm were obtained from an ultrasonication-assisted cutting process of pristine SWCNTs (1-3 μm in length).

Design of highly porous FeO@reduced graphene oxide a facile PMAA-induced assembly.

Advances in the synthesis and processing of graphene-based materials have presented the opportunity to design novel lithium-ion battery (LIB) anode materials that can meet the power requirements of next-generation power devices. In this work, a poly(methacrylic acid) (PMAA)-induced self-assembly process was used to design super-mesoporous FeO and reduced-graphene-oxide (FeO@RGO) anode materials. We demonstrate the relationship between the media pH and FeO@RGO nanostructure, in terms of dispersion state of PMAA-stabilized FeO@GO sheets at different surrounding pH values, and porosity of the resulted FeO@RGO anode.