干旱区生态环境知识资源中心(Arid): Desert beetle-like microstructures bridged by magnetic Fe(3)O4 grains for enhancing oil-in-water emulsion separation performance and solar-assisted recyclability of graphene oxide

Arid

DOI	10.1016/j.cej.2021.130904
	Desert beetle-like microstructures bridged by magnetic Fe(3)O4 grains for enhancing oil-in-water emulsion separation performance and solar-assisted recyclability of graphene oxide
	Xu, Yong; Wang, Gang; Zhu, Lijing; Deng, Wanshun; Wang, Chunting; Ren, Tianhui; Zhu, Baikang; Zeng, Zhixiang
通讯作者	Wang, G ; Zeng, ZX (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China. ; Ren, TH (corresponding author), Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Frontiers Sci Ctr Transformat Mol, Key Lab Thin Film & Microfabricat Technol, Shanghai 200240, Peoples R China.
来源期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
EISSN	1873-3212
出版年	2022
卷号	427
英文摘要	Owing to its high selective adsorption and excellent cyclability, superwetting materials have attracted considerable attention in environmental governance, especially oily wastewater treatment. However, the inferior separation efficiency and high recovery energy consumption seriously limit the actual application of superwetting particles in oil-water emulsion separation. Herein, inspired reversely by the water collection and water retention of the hydrophilic/superhydrophobic structure on the Stenocara beetle's back, we fabricated magnetic graphene oxide composite with beetle-like microstructure by one-step solvothermal and environmentally friendly ball milling method. Magnetic composite with superhydrophobic/superoleophilic bumps-hydrophilic underlayer exhibits high hydrophobicity/oleophilicity in air and high oleophobicity underwater. In the process of particle assembly, the Fe3O4 grains with abundant oxygen vacancies peeled off from the in-situ deposited magnetic Fe3O4 microspheres play a bridging role to immobilize the superhydrophobic carbon black particles on the graphene oxide (GO) surface. On the unique surface of magnetic composite, attributed to strong 7C-7C/n-7C interface adsorption and hydrophobic interaction, the oil-water separation can be rapidly demulsified and the superoleophilic bumps (superhydrophobic carbon black nanoparticles) can capture and aggregate tiny oil droplets. The hydration layer formed in the hydrophilic region effectively prevents the captured oil droplets from spreading on the composite structure, thus enhancing the emulsion separation ability of magnetic GO. More importantly, the prepared composites exhibit efficient recycling and regeneration under solar irradiation, which is superior to the recovery efficiency of traditional GO sheets lacking high self-heating components. These inverse beetle-like magnetic GO-based particles open up a new opportunity for the design and fabrication of advanced demulsifiers in the field of oil-water emulsion separation.
英文关键词	Bionic strategy Superwetting materials Magnetic graphene oxide Emulsion separation Solar-assisted recyclability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000724702100005
WOS关键词	DEMULSIFICATION ; COLLECTION ; NANOSHEETS ; PARTICLES ; ULTRAFAST ; MEMBRANES ; SEDIMENTS ; SURFACE
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374404
作者单位	[Xu, Yong; Wang, Gang; Zhu, Lijing; Deng, Wanshun; Wang, Chunting; Zeng, Zhixiang] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China; [Xu, Yong; Deng, Wanshun; Ren, Tianhui] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Frontiers Sci Ctr Transformat Mol, Key Lab Thin Film & Microfabricat Technol, Shanghai 200240, Peoples R China; [Zhu, Baikang] Zhejiang Ocean Univ, Sch Petrochem Engn & Environm, United Natl Local Engn Lab Oil & Gas Storage & Tr, Zhoushan 316022, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Xu, Yong,Wang, Gang,Zhu, Lijing,et al. Desert beetle-like microstructures bridged by magnetic Fe(3)O4 grains for enhancing oil-in-water emulsion separation performance and solar-assisted recyclability of graphene oxide[J],2022,427.
APA	Xu, Yong.,Wang, Gang.,Zhu, Lijing.,Deng, Wanshun.,Wang, Chunting.,...&Zeng, Zhixiang.(2022).Desert beetle-like microstructures bridged by magnetic Fe(3)O4 grains for enhancing oil-in-water emulsion separation performance and solar-assisted recyclability of graphene oxide.CHEMICAL ENGINEERING JOURNAL,427.
MLA	Xu, Yong,et al."Desert beetle-like microstructures bridged by magnetic Fe(3)O4 grains for enhancing oil-in-water emulsion separation performance and solar-assisted recyclability of graphene oxide".CHEMICAL ENGINEERING JOURNAL 427(2022).