Fullerol cluster formation in aqueous solutions: implications for environmental release.

Published

Journal Article

Here we report on the characteristics of fullerol in aqueous systems and examine those conditions that affect the physical state of fullerol in water. When dispersed in water fullerol forms polydisperse suspensions characterized by both small ( approximately 100 nm) and large associations (>500 nm). These clusters are charged with a point of zero net proton charge (PZNPC) of approximately pH 3. Though the size of fullerol clusters may be manipulated through changes in solution chemistry, principally pH, cluster formation cannot be entirely prevented through these means alone. The fullerol cluster structure is amorphous as revealed by X-ray diffraction analysis, which is in contrast to clusters of C(60) formed through dissolution in toluene and then introduced into water through sonication (SONnC(60)). The SONnC(60) clusters are crystalline with a structure similar to that of unreacted C(60) crystals.

Full Text

Duke Authors

Cited Authors

  • Brant, JA; Labille, J; Robichaud, CO; Wiesner, M

Published Date

  • October 2007

Published In

Volume / Issue

  • 314 / 1

Start / End Page

  • 281 - 288

PubMed ID

  • 17583721

Pubmed Central ID

  • 17583721

Electronic International Standard Serial Number (EISSN)

  • 1095-7103

International Standard Serial Number (ISSN)

  • 0021-9797

Digital Object Identifier (DOI)

  • 10.1016/j.jcis.2007.05.020

Language

  • eng