Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 109, Issue 49, Pages 23170-23174Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp053565w
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Naphthol has been used as an in-situ fluorescent probe to characterize the dispersibility of carbon nanofibers (CNFs) into the sol-gel matrix of silicon alkoxide. The ion-pair fluorescence of I-naphthol was found in the gel dispersing acid-treated CNFs instead of L-1(b) fluorescence, which was preferred in the low polar gel matrix. This indicates that 1-naphthol easily interacts with oxidized groups present on the surface of the acid-treated CNFs due to the high dispersibility of the CNFs into the gel matrix. The oxidized groups on the CNF surface are useful for preventing self-assembly and/or aggregation of the CNFs in the gel matrix.
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