Fe掺杂磁性生物炭的制备及其对金属离子Ni2+ 和Co2+ 的吸附性能

Fe掺杂磁性生物炭的制备及其对金属离子Ni²⁺ 和Co²⁺ 的吸附性能

余谟鑫, 孙宇航, 史文旭, 张晨, 王晓婷

Preparation of Fe-doped Biochar and Its Adsorption Performance for Ni²⁺ and Co²⁺ Metal Ions

YU Moxin, SUN Yuhang, SHI Wenxu, ZHANG Chen, WANG Xiaoting

表3 XPS分析中O1s、N1s和Co2p谱图的官能团摩尔分数

Table 3 Functional group content of O1s spectrum, S2p spectrum and Fe2p spectrum in XPS analysis (mole fraction, %)

sample	C-O	C=O	-OH	S^2-	S^-	SO $_{3}^{2 -}$	SO $_{3}^{2 -}$	Fe²⁺	Fe³⁺
FSBC_3-1	69.55	22.25	8.20	9.10	8.79	53.71	53.71	49.90	50.10
FSBC_3-1-Ni²⁺	44.73	33.46	21.81	10.90	11.50	45.70	45.70	54.70	45.30
FSBC_3-1-Co⁺	36.65	37.75	25.60	12.80	16.20	44.10	44.10	51.40	48.60