Fabrication of multiwall carbon nanotubes decorated with MoS2 nanoflowers for adsorption of Ag(I) from aqueous solution

doi:10.1016/j.diamond.2022.109147

	Fabrication of multiwall carbon nanotubes decorated with MoS2 nanoflowers for adsorption of Ag(I) from aqueous solution
	Yang, Hai-Jun; Ma, Ying-Xia; Shi, Xiao-Feng; Li, Xiao-Hua; Wang, Jia-Wei; Meng, Wen-Li; Xue, Jia-Geng
刊名	Diamond and Related Materials
	2022-08-01
卷号	127
关键词	Carboxylation Fabrication High resolution transmission electron microscopy Layered semiconductors Molybdenum compounds Multiwalled carbon nanotubes (MWCN) Nanoflowers Scanning electron microscopy Adsorption desorption isotherms Ag(Ι) Carboxylation multiwall carbon nanotube In-situ growth N 2 adsorption Nanohybrids Solution pH Solvothermal method X- ray diffractions Zeta potential analyzers
ISSN号	0925-9635
DOI	10.1016/j.diamond.2022.109147
英文摘要	In this work, a facile solvothermal method was employed to fabricate multiwall carbon nanotubes (MWCNTs) decorated with MoS2 nanoflowers (MoS2/MWCNTs) nanohybrid using carboxylation multiwall carbon nanotubes (MWCNTs-COOH) as skeleton for MoS2 in-situ growth, and the MoS2/MWCNTs nanohybrid was used as a novel sorbent to adsorb Ag(I) from aqueous solution. The structures and components of the obtained samples before and after adsorption were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), zeta potential analyzer and N2 adsorption-desorption isotherms. Meanwhile, the effect of solution pH, initial concentrations of Ag(I), contact time and temperature on the adsorption performance of the MoS2/MWCNTs nanohybrid for Ag(I) in aqueous solution were explored by batch experiments. The results show that MoS2 was decorated on MWCNTs in nanoflower-like structure, which could avoid agglomeration of MWCNTs and MoS2, expose as much of the sulfur-rich surface as possible, and provide abundant adsorption sites and transport channels for Ag(I) ions. The specific surface area of the MoS2/MWCNTs nanohybrid was 4.5 times that of pure MoS2. At the optimal adsorption conditions, the maximum adsorption capacity of the MoS2/MWCNTs nanohybrid for Ag(I) was 601.97 mg/g. The formation of Ag2S was main contribution for the adsorption, besides that, there was electrostatic adsorption. Based on the advantages of the simple synthesis method and high adsorption capacity, the MoS2/MWCNTs nanohybrid could be a promising candidate material for Ag(I) removal from wastewater. © 2022
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000811724200007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158461]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science & Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Yang, Hai-Jun,Ma, Ying-Xia,Shi, Xiao-Feng,et al. Fabrication of multiwall carbon nanotubes decorated with MoS2 nanoflowers for adsorption of Ag(I) from aqueous solution[J]. Diamond and Related Materials,2022,127.
APA	Yang, Hai-Jun.,Ma, Ying-Xia.,Shi, Xiao-Feng.,Li, Xiao-Hua.,Wang, Jia-Wei.,...&Xue, Jia-Geng.(2022).Fabrication of multiwall carbon nanotubes decorated with MoS2 nanoflowers for adsorption of Ag(I) from aqueous solution.Diamond and Related Materials,127.
MLA	Yang, Hai-Jun,et al."Fabrication of multiwall carbon nanotubes decorated with MoS2 nanoflowers for adsorption of Ag(I) from aqueous solution".Diamond and Related Materials 127(2022).