Adsorption properties of graphene oxide@sodium alginate composite for Pb(II)

被引:4
|
作者
Fu, Qiuping [1 ,2 ,3 ]
Hu, Jing [3 ]
Zhou, Shaoqi [1 ,3 ]
机构
[1] Guizhou Acad Sci, Guiyang 550009, Peoples R China
[2] Guiyang Univ, Coll Mat Sci & Engn, Guiyang 550005, Peoples R China
[3] Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550003, Peoples R China
关键词
Graphene oxide; Sodium alginate; Adsorption; Pb(II); REMOVAL; WATER;
D O I
10.1007/s13738-023-02932-5
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Graphene oxide@sodium alginate (GO@SA) composites were prepared by combining graphene oxide (GO) with sodium alginate (SA) for adsorption of Pb(II). Fourier-transform infrared spectra (FT-IR) and field emission scanning electron microscopy (FESEM) were used to characterize the structure and morphology of the composites. And the adsorption performance of Pb(II) by GO@SA was studied. The adsorption capacity of Pb(II) by GO@SA increased with the increase of pH and temperature. The adsorption process was consistent with the Langmuir isothermal adsorption model and quasi-second-order kinetic model, and the adsorption process was spontaneous and endothermic. At 303.15 K, the maximum adsorption capacity fitted by the Langmuir isothermal model was 241.5 mg/g.
引用
收藏
页码:399 / 407
页数:9
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