Nanocomposites Fe/Activated Carbon/PVA for Microwave Absorber: Synthesis and Characterization

Table 1

Chemical compounds for pure Fe, AC, and nanocomposites determined by XRF spectroscopy. The total amount of chemical compounds is 100% with loss on ignition (LOI) by XRF spectroscopy which is up to 3.9%.

Chemical compound	Sample (composition (%))
	Fe	Activated carbon (AC)	10% AC	20% AC	25% AC
Fe2O3	97.98	35.47	82.87	88.28	89.89
TiO2	0.67	2.36	1.71	2.15	2.51
MnO	0.56	0.749	1.27	1.57	1.59
CaO	0.297	6.98	0.526	0.709	0.85
P2O5	0.356	—	0.27	—	—
K2O	—	12.18	0.526	1.40	1.91
SiO2	—	38.41	4.12	5.02	5.15
MgO	—	—	8.73	1.27	0.11