| 초록 |
Graphene and graphene oxide (GO) have a great potential in many applications. More recently, these materials have been regarded molecular filters to separate ions as well as gases. GO sheets have been also considered as promising membrane materials for gas and liquid separation. GO can be easily obtained from chemical exfoliation of graphite, and mass production is also available. A key idea to use two-dimensional GO sheets as membranes is to generate slit-like pores or channels by tailoring interplanar spacing between GO sheets. More recently our group has demonstrated the potential of thin GO membranes for selective gas transport by changing stacking manner, and pore evolution by thermal treatment. The GO membranes have great ability to separate gas molecules very effectively. The gas transport behavior through GO membranes can be also tuned. |
