Nano boron solid fuel risks to environment and human health
PT J
AU Liu, XY
Wazne, M
Christodoulatos, C
Jasinkiewicz, KL
AF Liu, Xuyang
Wazne, Mahmoud
Christodoulatos, Christos
Jasinkiewicz, Kristin L.
TI Aggregation and deposition behavior of boron nanoparticles in porous
media
SO JOURNAL OF COLLOID AND INTERFACE SCIENCE
LA English
DT Article
DE Nanoparticles; Boron; Aggregation; Deposition; Fate and transport; DLVO;
Critical coagulation concentration; Attachment efficiency; Primary
energy minima; Secondary energy minima
ID NATURAL ORGANIC-MATTER; UNFAVORABLE CHEMICAL CONDITIONS; FULLERENE C-60
NANOPARTICLES; PARTICLE ADHESION; ELECTROLYTE-SOLUTIONS; COLLOIDAL
STABILITY; LATEX-PARTICLES; BED FILTRATION; MODEL SYSTEMS; KINETICS
AB New kinds of solid fuels and propellants comprised of nanomaterials are making their way into civilian and military applications yet the impact of their release on the environment remains largely unknown. One such material is nano boron, a promising solid fuel and propellant. The fate and transport of nano boron under various aquatic systems was investigated in aggregation and deposition experiments. Column experiments were performed to examine the effects of electrolyte concentration and flow velocity on the transport of boron nanoparticles under saturated conditions, whereas aggregation tests were conducted to assess the effects of electrolytes on the aggregation of the boron nanoparticles. Aggregation tests indicated the presence of different reaction-controlled and diffusion-controlled regimes and yielded critical coagulation concentrations (CCC) of 200 mM, 0.7 mM and 1.5 mM for NaCl, CaCl(2), and MgCl(2), respectively. Aggregation and deposition experimental data corresponded with the classic Derjaguin-Landau-Verwey-Overbeek (DLVO) model and the constant attachment efficiency filtration model, respectively. Theoretical calculations indicated that both the primary and secondary energy minima play important roles in the deposition of nano boron in sand columns. (C) 2008 Elsevier Inc. All rights reserved.
C1 [Liu, Xuyang; Wazne, Mahmoud; Christodoulatos, Christos] Stevens Inst Technol, Ctr Environm Syst, Keck Geotech Geoenvironm Lab, Hoboken, NJ 07030 USA.
[Jasinkiewicz, Kristin L.] USA, Demil & Environm Technol Div, Picatinny Arsenal, NJ 07806 USA.
RP Wazne, M (reprint author), Stevens Inst Technol, Ctr Environm Syst, Keck Geotech Geoenvironm Lab, Hoboken, NJ 07030 USA.
EM mwazne@stevens.edu
RI Liu, Xuyang/F-3373-2011
FU RDECOM/ARDEC [W15QKN-05-D-011]
FX This study Was Supported by RDECOM/ARDEC, Picatinny Arsenal under
Contract #W15QKN-05-D-011.
NR 49
TC 44
Z9 45
U1 1
U2 19
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9797
J9 J COLLOID INTERF SCI
JI J. Colloid Interface Sci.
PD FEB 1
PY 2009
VL 330
IS 1
BP 90
EP 96
DI 10.1016/j.jcis.2008.10.028
PG 7
WC Chemistry, Physical
SC Chemistry
GA 391JN
UT WOS:000262229700013
PM 18977491
ER
