Synthesis of Hybrid Reduced Graphene Oxide Decorated with Ru(bpy)(3)(2+)-Doped Silica Nanoparticles

Title
Synthesis of Hybrid Reduced Graphene Oxide Decorated with Ru(bpy)(3)(2+)-Doped Silica Nanoparticles
Author
김용신
Keywords
Electrochemiluminescence; Hybrid Materials; Reduced Graphene Oxide; Ru-Doped Silica
Issue Date
2016-05
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 16, No. 5, Page. 4534-4538
Abstract
Hybrid materials consisting of electrically conductive reduced graphene oxide (RGO) and Ru(bpy)(3)(2+)-doped silica (Ru@SiO2) nanoparticles were synthesized by hydrolysis of TEOS in the presence of Ru(bpy)(3)Cl-2 and RGO. Many spherical Ru@SiO2 nanoparticles, of an average size of 96 nm, were observed to be strongly anchored on a planar RGO surface in SEM and TEM images. FTIR and EDS analyses confirmed the chemical compositions and functional groups of Ru@SiO2 and partially reduced RGO. The RGO prepared by 200 degrees C thermal treatment of GO in N-2 was probed to have a multilayered sheet structure by XRD. An absorption spectrum of the hybrid exhibited a considerable red-shift in the characteristic visible peak of free Ru(bpy)(3)(2+) centered at 452 nm due to electrostatic interactions between Ru(bpy)(3)(2+) and negatively charged silica, indicating strong immobilization of Ru(bpy)(3)(2+) in the silica matrix.
URI
http://www.ingentaconnect.com/content/asp/jnn/2016/00000016/00000005/art00042http://repository.hanyang.ac.kr/handle/20.500.11754/102294
ISSN
1533-4880; 1533-4899
DOI
10.1166/jnn.2016.11008
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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