Three-dimensional biomimetic superhydrophobic nickel sponge without chemical modifications for efficient oil/water separation

doi:10.1016/j.seppur.2022.120723

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	Three-dimensional biomimetic superhydrophobic nickel sponge without chemical modifications for efficient oil/water separation
	Song, Ru 1,2; Zhang, Ningshuang 1,2,3; Dong, Hong 1,2; Wang, Peng 1,2; Ding, Hao 1,2; Wang, Jie 1,2; Li, Shiyou 1,2,3
刊名	Separation and Purification Technology
	2022-05-15
卷号	289
关键词	Biomimetics Chemical modification Hydrophobicity Losses Mixtures Oil spills Porosity Ecological environments Economic damages Economic loss Industrial oil Large amounts Modifier-free Oil wastewater Oil/water mixtures Oil/water separation Wastewater discharge
ISSN号	1383-5866
DOI	10.1016/j.seppur.2022.120723
英文摘要	The frequent oil spill accidents and a large amount of industrial oil wastewater discharges had caused serious economic losses and damage to the marine ecological environment. Hence, oil–water separation technology had received increasing attention from researchers. Herein, three-dimensional (3D) nickel sponge was prepared via a facile hydrothermal reduction route. The nano-spines structure of nickel sponge could exhibit superhydrophobic/superlipophilic properties without further hydrophobic modification by low-surface-energy chemicals. Due to the opened hierarchical porous structures and higher porosity, nickel sponges have excellent adsorption capacity for various oils and organic solvents. Nickel sponge has good resistance to ultraviolet radiation, corrosive aqueous solution ability, can be used for long-term outdoor applications. Moreover, the nickel sponge can also selectively absorb oil from oil/water mixtures under turbulent flow conditions. In addition, nickel sponges can continuously and rapidly collect oil from immiscible oil/water mixtures with the aid of a vacuum. Nickel sponge can also efficient selective filter oil/water mixture with a high separation efficiency over 97%. Due to the combination of metallic properties and the low density, nickel sponges are expected to have potential applications in oil absorption, flexible electrodes and industrial catalysis. © 2022 Elsevier B.V.
WOS研究方向	Engineering
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000780384900001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157941]
专题	石油化工学院
作者单位	1.Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou; 730050, China; 2.School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Gansu Engineering Laboratory of Cathode Material for Lithium-ion Battery, Baiyin; 730900, China
推荐引用方式 GB/T 7714	Song, Ru,Zhang, Ningshuang,Dong, Hong,et al. Three-dimensional biomimetic superhydrophobic nickel sponge without chemical modifications for efficient oil/water separation[J]. Separation and Purification Technology,2022,289.
APA	Song, Ru.,Zhang, Ningshuang.,Dong, Hong.,Wang, Peng.,Ding, Hao.,...&Li, Shiyou.(2022).Three-dimensional biomimetic superhydrophobic nickel sponge without chemical modifications for efficient oil/water separation.Separation and Purification Technology,289.
MLA	Song, Ru,et al."Three-dimensional biomimetic superhydrophobic nickel sponge without chemical modifications for efficient oil/water separation".Separation and Purification Technology 289(2022).