Layer-by-Layer Assembly of Polyelectrolytes on Urchin-like MnO2 for Extraction of Zn2+, Cu2+ and Pb2+ from Alkaline Solutions

doi:10.3390/cryst12030358

	Layer-by-Layer Assembly of Polyelectrolytes on Urchin-like MnO2 for Extraction of Zn2+, Cu2+ and Pb2+ from Alkaline Solutions
	Chen, Dong1,2 ; Nan, Zhongren 1
	2022-03
发表期刊	CRYSTALS
卷号	12 期号:3
摘要	Three-dimensional (3D) urchin-like MnO2@poly (sodium 4-styrene sulfonate) (PSS)/poly (diallyl dimethylammonium chloride) (PDDA)/PSS particles were prepared via the layer-by-layer (LBL) assembly of polyelectrolytes for the extraction of Zn2+ from alkaline media. The adsorption performance of Zn2+ on MnO2, MnO2@PSS/PDDA/PSS, and MnO2@(PSS/PDDA)(3)/PSS was investigated in batch experiments. The adsorption of Zn2+ on MnO2@PSS/PDDA/PSS has been studied under various conditions, such as initial Zn2+ concentration, adsorbent dosage, the solution's pH, and reaction time. The Zn2+ adsorption process is well represented by the pseudo-second-order kinetic model, and the equilibrium data fit the Freundlich isotherm well. MnO2@PSS/PDDA/PSS also showed high efficiency for Pb2+ and Cu2+ removal from slightly alkaline water. Thus, our research provides a deep insight into the preparation of 3D manganese oxides with polyelectrolyte films for the extraction of heavy metal ions, such as Pb2+, Cu2+, and Zn2+, from slightly alkaline wastewater.
关键词	urchin-like MnO2 LBL assembly heavy metal ions adsorption polyelectrolytes
DOI	10.3390/cryst12030358
收录类别	SCIE
语种	英语
WOS研究方向	Crystallography ; Materials Science
WOS类目	Crystallography ; Materials Science, Multidisciplinary
WOS记录号	WOS:000775871000001
出版者	MDPI
原始文献类型	Article
EISSN	2073-4352
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.lzufe.edu.cn/handle/39EH0E1M/32012
专题	农林经济管理学院
作者单位	1.Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China; 2.Lanzhou Univ Finance & Econ, Sch Agr & Forestry Econ & Management, Lanzhou 730020, Peoples R China
第一作者单位	兰州财经大学
推荐引用方式 GB/T 7714	Chen, Dong,Nan, Zhongren. Layer-by-Layer Assembly of Polyelectrolytes on Urchin-like MnO2 for Extraction of Zn2+, Cu2+ and Pb2+ from Alkaline Solutions[J]. CRYSTALS,2022,12(3).
APA	Chen, Dong,&Nan, Zhongren.(2022).Layer-by-Layer Assembly of Polyelectrolytes on Urchin-like MnO2 for Extraction of Zn2+, Cu2+ and Pb2+ from Alkaline Solutions.CRYSTALS,12(3).
MLA	Chen, Dong,et al."Layer-by-Layer Assembly of Polyelectrolytes on Urchin-like MnO2 for Extraction of Zn2+, Cu2+ and Pb2+ from Alkaline Solutions".CRYSTALS 12.3(2022).