The Removal of Uranium onto Nanoscale Zero-Valent Iron Particles in Anoxic Batch Systems

Table 1

Bulk and surface properties of the nano-Fe⁰  used in the current work.

Parameter		Nano-Fe^0
Particle size distribution (%)	0–50 nm; 50–100 nm; >100 nm	85; 8; 7
Crystallinity		Amorphous; (α-Fe)
Oxide thickness (nm)		3-4
Surface area (m^2 g^−1)		14.8
Surface composition (%)	Fe; O; C; B	30.5; 32.1; 14.5; 22.9
Surface stoichiometry	(Fe^0/Fe^2+ + Fe^3+); Fe^2+/Fe^3+	0.02; 0.38

Note: a significant proportion of the carbon detected is likely to be adventitious carbon.