Removal of Ni(II) from aqueous solutions by sulfide-modified nanoscale zero-valent iron supported by hydroxyapatite (HAP/S-nZVI)

doi:10.5004/dwt.2021.27497

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Removal of Ni(II) from aqueous solutions by sulfide-modified nanoscale zero-valent iron supported by hydroxyapatite (HAP/S-nZVI)
	Xu, Hui; Chen, Minzhang; Zhang, Yajuan; Chen, Pengdong; Chen, Yong
刊名	DESALINATION AND WATER TREATMENT
	2021-08
卷号	232 页码:149-164
关键词	Sulfur-modified Nano zero-valent iron Hydroxyapatite Removal Ni(II)
ISSN号	1944-3994
DOI	10.5004/dwt.2021.27497
英文摘要	Sulfide-modified nanoscale zero-valent iron (S-nZVI) has been widely used to remove various contaminants due to its excellent reactivity and selectivity. In this study, hydroxyapatite-supported sulfide-modified nZVI (HAP/S-nZVI) was synthesized and applied for Ni(II) elimination. The excellent performances of HAP/S-nZVI in Ni(II) removal showed that 98.25% of Ni(II) were removed using HAP/S-nZVI (1:0.5) after 15 min, much higher than HAP, nZVI and other adsorbents, and maximum adsorption capacity reached 302.27 mg g(-1) at pH = 7 and 298 K. The morphology and structure of HAP/S-nZVI (1:0.5) composites were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy and other techniques, which verified the high disperse and activity of nZVI after sulfide-modified and supported by HAP. Furthermore, the stability study confirmed that the sulfide-modified nZVI can retain high Ni(II) removal efficiency than that of pristine nZVI after storage 60 d due to such powerfully protective layers of FeSx synthesized during the sulfide modification. The pseudo-second-order kinetic model and Freundlich isotherm model more conform to describe the removal of Ni(II). The dynamic adsorption experiments further illustrated its potential ability for real applications.
WOS研究方向	Engineering ; Water Resources
语种	英语
出版者	DESALINATION PUBL
WOS记录号	WOS:000691618400016
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148562]
专题	石油化工学院
作者单位	Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hui,Chen, Minzhang,Zhang, Yajuan,et al. Removal of Ni(II) from aqueous solutions by sulfide-modified nanoscale zero-valent iron supported by hydroxyapatite (HAP/S-nZVI)[J]. DESALINATION AND WATER TREATMENT,2021,232:149-164.
APA	Xu, Hui,Chen, Minzhang,Zhang, Yajuan,Chen, Pengdong,&Chen, Yong.(2021).Removal of Ni(II) from aqueous solutions by sulfide-modified nanoscale zero-valent iron supported by hydroxyapatite (HAP/S-nZVI).DESALINATION AND WATER TREATMENT,232,149-164.
MLA	Xu, Hui,et al."Removal of Ni(II) from aqueous solutions by sulfide-modified nanoscale zero-valent iron supported by hydroxyapatite (HAP/S-nZVI)".DESALINATION AND WATER TREATMENT 232(2021):149-164.