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

doi:10.1002/slct.202000102

IR > 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, Hongxia1 ; Du, Mei 1; Liu, Xiaoyu1 ; Wang, Kunjie1,2
	2020-02-28
发表期刊	CHEMISTRYSELECT
ISSN	2365-6549
卷号	5 期号:8 页码:2501-2507
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.
关键词	Adsorption Carbon dots Composite materials GO
DOI	10.1002/slct.202000102
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China Project[21867015][31860250]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000516865300021
出版者	WILEY-V C H VERLAG GMBH
来源库	WOS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://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
第一作者单位	石油化工学院
通讯作者单位	石油化工学院
第一作者的第一单位	石油化工学院
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.