. 2020 Mar 27;5(13):7406–7417. doi: 10.1021/acsomega.9b04450

Table 2. TGA and Elemental Analysis for Fe₃O₄@SiO₂–NH₂, Fe₃O₄@SiO₂–TCT, Fe₃O₄@SiO₂–TCT–NH₂, and Fe₃O₄@SiO₂–EDTA–Ni(II) NPs.

sample		C (%)	H (%)	N (%)	total (%)^a
Fe₃O₄@SiO₂–NH₂	TGA (wt %)	6.746	1.501	2.627	10.874
	EA (wt %)	6.614	1.475	2.532	10.621
Fe₃O₄@SiO₂–TCT	TGA (wt %)	7.377	0.717	5.736	3.830
	EA (wt %)	7.468	0.750	5.627	13.845
Fe₃O₄@SiO₂–TCT–NH₂	TGA (wt %)	16.172	2.918	10.564	29.654
	EA (wt %)	15.946	2.871	10.377	29.194
Fe₃O₄@SiO₂–EDTA–Ni(II)	TGA (wt %)	22.821	2.853	9.112	34.786
	EA (wt %)	21.611	2.871	9.232	33.714

Total (%) = C (%) + H (%) + N (%).

Table 2. TGA and Elemental Analysis for Fe3O4@SiO2–NH2, Fe3O4@SiO2–TCT, Fe3O4@SiO2–TCT–NH2, and Fe3O4@SiO2–EDTA–Ni(II) NPs.