A novel composite adsorbent for the separation and recovery of indium from aqueous solutions

doi:10.1016/j.hydromet.2019.04.003

IMR OpenIR

	A novel composite adsorbent for the separation and recovery of indium from aqueous solutions
	Li, Min 1; Meng, Xiaojing 1; Huang, Kun 2; Feng, Jian 1; Jiang, Songshan 1
通讯作者	Li, Min(limin1406@163.com) ; Feng, Jian(jianfeng@cqust.edu.cn)
	2019-06-01
发表期刊	HYDROMETALLURGY
ISSN	0304-386X
卷号	186 页码:73-82
摘要	In this study, a novel approach for preparing SiO2@GO-PO3H2 composite using a simple method has been reported, which can be used as an efficient adsorbent for separating In(III) ions from aqueous solutions. The adsorbent was characterized on the basis of Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Brunauer-Emmett-Teller (BET) technique. The adsorption behavior of In(III) ions on the adsorbent was investigated based upon batch experiments. The adsorption equilibrium was achieved within 50 min and the adsorption kinetics of In(III) ions followed the pseudo second-order model. The adsorption equilibrium study exhibited good agreement with the Langmuir isotherm model and the maximum adsorption capacity was as high as 149.93 mg.g(-1). Furthermore, competitive adsorption demonstrated that the adsorbent maintained good affinity for In(III) ions even in mixed solutions containing K(I), Ca(II), Na(I), Mg(II), Al(III), Zn(II), Fe(II), Pb(II) and Cu(II). The mechanism of the adsorption of In(III) ions SiO2@GO-PO3H2 surface was mainly attributed to the fact that P element in the adsorbent coordinated with In(III) ions to generate In-P bond, which confirmed that the adsorption of In(III) ions on SiO2@GO-PO3H2 belonged to a chemical adsorption process. The SiO2@GO-PO3H2 can be repeatedly used and regenerated ten times without obvious decrease in adsorption capacity, demonstrating that the adsorbent is of high stability and reusability. The results indicated that SiO2@GO-PO3H2 could serve as a promising adsorbent for efficient recovery and elimination of In(III) ions from aquatic environment.
关键词	Graphene oxide Silica gel Adsorption In(III) Chemical grafting
资助者	National Natural Science Foundation of China ; Scientific and Technological Research Program of Chongqing Municipal Education Commission
DOI	10.1016/j.hydromet.2019.04.003
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51708075] ; Scientific and Technological Research Program of Chongqing Municipal Education Commission[KJ1713335] ; Scientific and Technological Research Program of Chongqing Municipal Education Commission[KJQN201801527]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000473837400009
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/134429
专题	中国科学院金属研究所
通讯作者	Li, Min; Feng, Jian
作者单位	1.Chongqing Univ Sci & Technol, Dept Chem Engn, Chongqing 401331, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Min,Meng, Xiaojing,Huang, Kun,et al. A novel composite adsorbent for the separation and recovery of indium from aqueous solutions[J]. HYDROMETALLURGY,2019,186:73-82.
APA	Li, Min,Meng, Xiaojing,Huang, Kun,Feng, Jian,&Jiang, Songshan.(2019).A novel composite adsorbent for the separation and recovery of indium from aqueous solutions.HYDROMETALLURGY,186,73-82.
MLA	Li, Min,et al."A novel composite adsorbent for the separation and recovery of indium from aqueous solutions".HYDROMETALLURGY 186(2019):73-82.