Figure 5.
FT-IR spectra of (a) PHPP, (b) (Fe
3
O
4
/OA)/SiO
2
, and (c) (PHPP-Fe
3
O
4
/OA)/SiO
2
Chen
et al.
Nanoscale Research Letters
2009
4
:400 doi:10.1007/s11671-009-9254-5