Graphene-Based Multifunctional Iron Oxide Nanosheets with Tunable Properties

Title
Graphene-Based Multifunctional Iron Oxide Nanosheets with Tunable Properties
Authors
구혜영이하진고혜아이영부배태성김준경최원산
Keywords
graphene; graphene composites; iron oxide; nano-particles; surface chemistry
Issue Date
2011-01
Publisher
Chemistry : a European journal
Citation
VOL 17, NO 4, 1214-1219
Abstract
We report the synthesis of graphenes with tunable properties due to the growth of needlelike iron oxide (IO) nanoparticles on their surfaces. The electrical conductivity, flexibility, and magnetic properties of graphene nanosheets (GNSs) could be tuned on demand by fine controlling both the surface coverage and the length of the IO nanoneedles. The degree of coverage of the IO nanoparticles on the surface of the GNSs made it possible to control the resulting properties of the IO/GNSs on demand. As examples of their utility, paperlike materials were generated by simple filtration, and the resulting IO/GNS nanocomposites showed extraordinary removal capacity and fast adsorption rates for AsV and CrVI ions in water. Another possible application is the preparation of multifunctional films equipped with conductivity, flexibility, and magnetic properties. The fabrication process is easy to scale up at a low cost. In addition, both the colloidal solution and film forms of the resulting IO/GNSs were effective for removal of heavy metal ions, meaning this material could be utilized for actual industrial applications.
URI
http://pubs.kist.re.kr/handle/201004/45609
ISSN
0947-6539
Appears in Collections:
KIST Publication > Article
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