. 2018 Nov 30;3(11):16328–16337. doi: 10.1021/acsomega.8b02411

Table 2. Data of Magnetic Measurements and X-ray Photoelectron Spectroscopy (XPS) for Zn-Doped IONPs, Zn_xFe_3–xO₄, at Various Doping Concentrations.

sample notation	“x” value in Zn_xFe_3–xO₄^a	NP diameter, nm	M_s, emu/g^b	T_B	M_sⁿ emu/g^c	Fe 2p, at. %	Zn 2p, at. %	Fe 3p, at. %	Zn 3p, at. %
IONPs	0	16.6	56.7	270	60.5	100	0	100	0
Zn_0.05Fe_2.95O₄	0.05	17.2	57.2	270	55.2	96.6	4.7	99	1.0
Zn_0.1Fe_2.9O₄	0.1	17.1	49.2	200	48.9	84.7	11.5	97.4	2.6
Zn_0.19Fe_2.81O₄	0.19	17.2	25.9	220	25.7	80	20	93.1	6.9
Zn_0.35Fe_2.65O₄	0.35	17.3	25.9	210	25.7	74.8	25.2	90.7	9.3
Zn_0.43Fe_2.57O₄	0.43	19.2				72.8	27.2	86.9	13.1

By loading.

Saturation magnetization at 300 K at the magnetic field strength of 10 kOe.

Normalized saturation magnetization adjusted for 17 nm NPs.

Table 2. Data of Magnetic Measurements and X-ray Photoelectron Spectroscopy (XPS) for Zn-Doped IONPs, ZnxFe3–xO4, at Various Doping Concentrations.