Synthesis of a Novel CQDs-GO-Ag2S Composite and Study on the Adsorption of Methylene Blue

doi:10.1002/slct.202000102

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Synthesis of a Novel CQDs-GO-Ag2S Composite and Study on the Adsorption of Methylene Blue
	Zhang, Dongqiang, I 1; Xu, Jialin 1; Liang, Lei 1; Li, Hongxia 1; Du, Mei 1; Liu, Xiaoyu 1; Wang, Kunjie 1,2
刊名	CHEMISTRYSELECT
	2020-02-28
卷号	5 期号:8 页码:2501-2507
关键词	Adsorption Carbon dots Composite materials GO
ISSN号	2365-6549
DOI	10.1002/slct.202000102
英文摘要	The present work aims to develop a composite that takes the advantages of carbon quantum dots (CQDs) such as wide absorption band, high optical absorption coefficient and chemical stability as well as the nano-sized silver sulfide with excellent redox capacity and the strong absorption in the visible range. Such nanocomposites were crafted on a template developed using polyethyleneimine (PEI) modified Graphene oxide (GO). The adsorption properties of methylene blue dyes were tested. With the large specific surface area, the as prepared nanocomposites achieved the removal rate of the blue dye up to 99.0%. The adsorption process was able to be described using the Freundlich isothermal model, wherein, the maximum adsorption capacity was obtained as 348 mg.g(-1). Thermodynamic analysis indicates the adsorption is entropy driven process with Delta G < 0, Delta H > 0, and Delta S > 0. The present study shows that CQDs-GO-Ag2S composites as a promising adsorbent that may be applied to wastewater treatment and waste gas removal.
资助项目	National Natural Science Foundation of China Project[21867015][31860250]
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000516865300021
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64148]
专题	石油化工学院
通讯作者	Wang, Kunjie
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Gansu, Peoples R China 2.Minist Educ, Key Lab Ecofunct Polymer Mat, Lanzhou 730070, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Dongqiang, I,Xu, Jialin,Liang, Lei,et al. Synthesis of a Novel CQDs-GO-Ag2S Composite and Study on the Adsorption of Methylene Blue[J]. CHEMISTRYSELECT,2020,5(8):2501-2507.
APA	Zhang, Dongqiang, I.,Xu, Jialin.,Liang, Lei.,Li, Hongxia.,Du, Mei.,...&Wang, Kunjie.(2020).Synthesis of a Novel CQDs-GO-Ag2S Composite and Study on the Adsorption of Methylene Blue.CHEMISTRYSELECT,5(8),2501-2507.
MLA	Zhang, Dongqiang, I,et al."Synthesis of a Novel CQDs-GO-Ag2S Composite and Study on the Adsorption of Methylene Blue".CHEMISTRYSELECT 5.8(2020):2501-2507.