Environmental Engineering Reference
In-Depth Information
+
Wash
Fe(II)
Wash
(1)
Complexed with
Fe(II) ions
(3)
+
(1)
(3)
Wash
-
NaBH
4
Wash
(2)
(4)
Negatively charged
CAc nanofiber
LbL assembly
n
cycles
Binding/reduction
n
cycles
+
PDADMAC
ZVI NPs
-
PA A
figure 6.2
Schematic illustration of immobilizing ZVI NPs onto PE multilayer-assembled CAc nanofibers. reprinted with permission
from ref. [20]. © 2009, American Chemical Society.
(a)
(b)
200 nm
ZVI NPs
(c)
80
Mean size =1.4 nm
σ
= 0.28nm
70
60
50
40
30
20
10
0
20 nm
0.8
1
1.2 1.4 1.6
Particle size (nm)
1.8
2
2.2
figure 6.3
Cross-sectional TEM images of ZVI NP-immobilized CAc nanofibrous mats: (a) overview of the TEM image; (b) magnified
TEM image showing individual ZVI NPs; (c) size distribution histogram of the formed ZVI NPs. reprinted with permission from ref. [20].
© 2009, American Chemical Society.
