Effects of humic acid and electrolytes on photocatalytic reactivity and transport of carbon nanoparticle aggregates in water.
Journal Article (Journal Article)
The effects of naturally occurring macromolecules such as humic acid (HA) and electrolytes on four fullerene nanoparticle suspensions (i.e., C(60), C(60)(OH)(24), single- and multiwall carbon nanotubes) were explored with respect to: (1) characteristics of nanoparticle aggregates, (2) transport of the aggregates through a silica porous media, and (3) production of reactive oxygen species (ROS) from the photosensitized fullerene aggregates. The presence of HA and salts increased the size of aggregates and relative hydrophobicity associated with transport through silica beads, while decreasing ROS production. These data illustrate the importance that transformation of engineered nanomaterials (ENMs) through interactions with aquatic solutes may have in altering the environmental behavior of nanomaterials.
- Chae, S-R; Xiao, Y; Lin, S; Noeiaghaei, T; Kim, J-O; Wiesner, MR
- September 2012
Volume / Issue
- 46 / 13
Start / End Page
- 4053 - 4062
Electronic International Standard Serial Number (EISSN)
International Standard Serial Number (ISSN)
Digital Object Identifier (DOI)