RCEES OpenIR  > 环境水质学国家重点实验室
Preparation of magnetic polyimide@ Mg-Fe layered double hydroxides core-shell composite for effective removal of various organic contaminants from aqueous solution
Wu, Hanjun; Zhang, Huali; Zhang, Weijun; Yang, Xiaofang; Zhou, Hong; Pan, Zhiquan; Wang, Dongsheng
2019-03
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume219Pages:66-75
AbstractIn this work, a novel core-shell structured magnetic polyimide@layered double oxides (LDO) composites coating a porous polyimide (PO-coated Fe3O4 magnetic core and layered double hydroxide (LDH) has been successfully synthesized by solve-thermal synthesis and co-precipitation process. The magnetic PI@LDO composites were characterized by scanning and transmission electron microscopy (SEM and TEM), X-ray diffraction (XRD), thermogravimetry analysis (TGA) and magnetic properties analysis. The composite materials displayed core-shell structure with flower-like morphology. The magnetic PI@LDO composites were applied to remove tetracycline (TC), 2,4-dichlorophenol (2,4-DCP) and glyphosate (GP) from aqueous solution. The action pH value was ranged from 5 to 9 for TC and GP and 3 to 7 for 2,4-DCP, respectively. Cl- showed a weak competitive adsorption effect to TC, 2, 4-DCP and GP. In addition, the presence of humic acid (HA) could slightly reduce the adsorption capacity of magnetic PI@LDO composites. The adsorption process could be well described by pseudo-second-order model for TC and GP, while pseudo-first-order model for 2,4-DCP. The experimental data of TC and 2,4-DCP could be fitted better with Freundlich model, while that of GP were fitted better with Langmuir model. The adsorptions of TC, 2,4-DCP and GP were both spontaneous and endothermic. The adsorption capacity decreased slightly after adsorption-desorption cycles repeated five times. This study demonstrated that magnetic PI@LDO exhibited great potential to be a mild and cost-effective adsorbent for the removal of various organic contaminants from wastewater. (C) 2018 Elsevier Ltd. All rights reserved.
Department环境水质学国家重点实验室
KeywordAdsoption behavior Core-shell structure Magnetic polyimide@ layered double oxides composites Organic contaminants Regeneration
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43107
Collection环境水质学国家重点实验室
Affiliation1.Wuhan Inst Technol, Sch Chem & Environm Engn, Wuhan 430074, Hubei, Peoples R China
2.China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China
3.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Hubei, Peoples R China
4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Wu, Hanjun,Zhang, Huali,Zhang, Weijun,et al. Preparation of magnetic polyimide@ Mg-Fe layered double hydroxides core-shell composite for effective removal of various organic contaminants from aqueous solution[J]. CHEMOSPHERE,2019,219:66-75.
APA Wu, Hanjun.,Zhang, Huali.,Zhang, Weijun.,Yang, Xiaofang.,Zhou, Hong.,...&Wang, Dongsheng.(2019).Preparation of magnetic polyimide@ Mg-Fe layered double hydroxides core-shell composite for effective removal of various organic contaminants from aqueous solution.CHEMOSPHERE,219,66-75.
MLA Wu, Hanjun,et al."Preparation of magnetic polyimide@ Mg-Fe layered double hydroxides core-shell composite for effective removal of various organic contaminants from aqueous solution".CHEMOSPHERE 219(2019):66-75.
Files in This Item: Download All
File Name/Size DocType Version Access License
Preparation of magne(2157KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wu, Hanjun]'s Articles
[Zhang, Huali]'s Articles
[Zhang, Weijun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wu, Hanjun]'s Articles
[Zhang, Huali]'s Articles
[Zhang, Weijun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wu, Hanjun]'s Articles
[Zhang, Huali]'s Articles
[Zhang, Weijun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Preparation of magnetic polyimide@ Mg-Fe layered double hydroxides core-shell composite for effective removal of various organic contaminants from aqueous solution.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.