Sulfhydryl modified beta-cyclodextrin/Fe3O4/graphene oxide magnetic nanohybrid for the adsorption of silver ions and cationic dye methylene blue

doi:10.5004/dwt.2021.27267

	Sulfhydryl modified beta-cyclodextrin/Fe3O4/graphene oxide magnetic nanohybrid for the adsorption of silver ions and cationic dye methylene blue
	Li, Xin; Ma, Yingxia; Shi, Xiaofeng; Kang, Xiaoya; Bai, Fengming; Zhang, Dingjun
刊名	DESALINATION AND WATER TREATMENT
	2021-06
卷号	226 页码:419-430
关键词	beta-cyclodextrin/Fe3O4/graphene oxide Sulthydryl Adsorption Silver ions Methylene blue
ISSN号	1944-3994
DOI	10.5004/dwt.2021.27267
英文摘要	Sulthydryl modified beta-cyclodextrin/Fe3O4/graphene oxide magnetic nanohybrid (S-CD/Fe3O4/GO-SH) was prepared using 3-mercaptopropyltrimethoxysilane functionalized beta-cyclodextrin/ Fe3O4/graphene oxide magnetic nanohybrid (beta-CD/Fe3O4/GO) fabricated by a one-step reversephase co-precipitation method. The obtained beta-CD/Fe3O4/GO-SH sample was characterized by transmission electron microscope, X-ray diffraction, Fourier-transform infrared spectroscopy, N-2 adsorption/desorption isotherm, X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis and vibrating sample magnetometer. The adsorption property of beta-CD/Fe3O4/GO-SH for silver ions (Ag(I)) and cationic dye methylene blue (MB) in a single system was investigated by batch experiments. The results indicated that the beta-CD/Fe3O4/GO-SH as superparamagnetic adsorption material with magnetic separation property in aqueous solution was successfully prepared. The maximum adsorption capacity of the beta-CD/Fe3O4/GO-SH for Ag(I) and MB was 101.87 and 105.74 mg g(-1), respectively. The XPS analysis results affirmed that the sulthydryl groups of the beta-CD/Fe3O4/GO-SH displayed a superior affinity for Ag(I), and Ag(I) was reduced to Ag element during the adsorption process. The adsorption process of the beta-CD/Fe3O4/GO-SH for Ag(I) and MB conformed to the pseudo-second-order kinetic model representing the adsorption process as predominantly chemisorption. The adsorption equilibrium data of the beta-CD/Fe3O4/GO-SH for Ag(I) and MB had better agreement with the Freundlich isothermal model and the Langmuir model, respectively, indicating that the isothermal adsorption process of the beta-CD/Fe3O4/GO-SH for Ag(I) and MB was heterogeneous multilayer adsorption and homogeneous monolayer adsorption, respectively.
WOS研究方向	Engineering ; Water Resources
语种	英语
出版者	DESALINATION PUBL
WOS记录号	WOS:000672139300038
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148578]
专题	材料科学与工程学院
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Li, Xin,Ma, Yingxia,Shi, Xiaofeng,et al. Sulfhydryl modified beta-cyclodextrin/Fe3O4/graphene oxide magnetic nanohybrid for the adsorption of silver ions and cationic dye methylene blue[J]. DESALINATION AND WATER TREATMENT,2021,226:419-430.
APA	Li, Xin,Ma, Yingxia,Shi, Xiaofeng,Kang, Xiaoya,Bai, Fengming,&Zhang, Dingjun.(2021).Sulfhydryl modified beta-cyclodextrin/Fe3O4/graphene oxide magnetic nanohybrid for the adsorption of silver ions and cationic dye methylene blue.DESALINATION AND WATER TREATMENT,226,419-430.
MLA	Li, Xin,et al."Sulfhydryl modified beta-cyclodextrin/Fe3O4/graphene oxide magnetic nanohybrid for the adsorption of silver ions and cationic dye methylene blue".DESALINATION AND WATER TREATMENT 226(2021):419-430.