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. 2023 Sep 6;13(18):2506. doi: 10.3390/nano13182506

Table 2.

Comparison of composition element content of CQDs/FeO_x composite, FeO_x and IOS.

Serial Number	Elemental Composition (wt%)
Serial Number	Fe	O	C	Al	Si	Ca	Mn
IOS	71.09	27.41	-	0.23	0.47	0.42	0.38
FeO_x ^a	70.46	28.05	-	0.21	0.49	0.4	0.39
CQDs/FeO_x composite ^b	62.6	24.94	11.14	0.21	0.44	0.35	0.32

^a calcining IOS at 300 °C in an air atmosphere for 4 h; ^b CQDs/FeO_x–3 sample.