TY - JOUR AU - 이선영 DA - 2015/01 PY - 2015 UR - http://www.sciencedirect.com/science/article/pii/S0360319914023842?via%3Dihub UR - http://hdl.handle.net/20.500.11754/35427 AB - We report nanostructured composites based on single crystal hematite (Fe2O3), reduced graphene oxide (RGO) and functionalized multi-walled carbon nanotubes (MWCNTs), which were synthesized via the hydrothermal method. The Fe2O3/MWCNT/RGO composite exhibits enhanced photocatalytic activity in terms of the degradation of Rhodamine B under visible irradiation compared with Fe2O3, or the Fe2O3/MWCNT or Fe2O3/RGO composites. The Fe2O3 and composite samples were analyzed using X-ray diffraction, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, Brunauer-Emmett-Teller theory, and ultraviolet visible spectrophotometry. From these analyses, we find that a uniform distribution of MWCNTs and RGO sheets with Fe2O3 nanorhombohedra results in an increase in the specific surface area and optical absorbance, as well as a reduction in the charge carrier recombination rate, and favorable charge transport properties were observed using photoelectrochemical measurements. This synthesis method represents a technique for fabrication of composite materials with low cost, and that are suitable for photocatalysis, with potential applications in water purification. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. PB - PERGAMON-ELSEVIER SCIENCE LTD KW - Hydrothermal synthesis KW - Photocatalysis KW - Hematite KW - Reduced graphene oxide KW - Multi-walled carbon nanotubes KW - VISIBLE-LIGHT PHOTOCATALYSTS KW - CARBON NANOTUBE COMPOSITE KW - CDS NANOPARTICLES KW - RHODAMINE-B KW - OXIDATION KW - NANOSTRUCTURES KW - NANOCOMPOSITES KW - PERFORMANCE KW - NANORODS KW - ENERGY TI - Reduced graphene oxide composites with MWCNTs and single crystalline hematite nanorhombohedra for applications in water purification IS - 1 VL - 40 DO - 10.1016/j.ijhydene.2014.08.084 T2 - INTERNATIONAL JOURNAL OF HYDROGEN ENERGY ER -