Ultralight, robustly compressible and super-hydrophobic biomass-decorated carbonaceous melamine sponge for oil/water separation with high oil retention

Lei, Zhiwen1; Zheng, Peitao2; Niu, Liyong5; Yang, Yu2,3; Shen, Jinlai1; Zhang, Weide4; Wang, Chaoyang1

2019-09-30

10.1016/j.apsusc.2019.06.025

APPLIED SURFACE SCIENCE   影响因子和分区

0169-4332

1873-5584

To address the high-cost hydrophobic modification of three dimensional commercial sponges, here natural cellulose nanocrystcals (CNCs) were employed to prepare ultralight, robustly compressible and super-hydrophobic biomass-decorated carbonaceous melamine (BCM) sponges by a facile immersing-adsorption-pyrolysis method. Due to the introduction of CNCs, originally pyrolyzed melamine sponges with super-hydrophilicity were changed into the ultralight BCM sponge (7.3 mg cm(-3)) with super-hydrophobicity and excellent mechanical property. Being applied to the oil/water separation, BCM sponges showed good oil selectivity, high oil absorption capacities up to 201 g/g or 94% of its own volume, and even high oil retention. Simultaneously, the excellent compressibility and good flame retardancy of BCM sponges ensured that the absorbed oil can be recovered by combustion and squeezing methods. Based on super-hydrophobicity, good flexibility and high porosity of BCM sponges, the spilled oils could be also consecutively collected from water surface to collecting vessels by our designed oil collection apparatus.

Cellulose nanocrystals Melamine sponge Double network structure Oil/water separation High oil retention

SCI ; EI

英语

通讯

China Postdoctoral Science Foundation[2018M640778]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter

WOS:000474530600099

ELSEVIER

20192507063159

Cellulose ; Cellulose derivatives ; Hydrophilicity ; Separation

Chemical Operations:802.3 ; Cellulose, Lignin and Derivatives:811.3 ; Physical Properties of Gases, Liquids and Solids:931.2

MATERIALS SCIENCE

Web of Science

1.South China Univ Technol, Res Inst Mat Sci, Guangzhou 510640, Guangdong, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China
4.South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
5.Henan Univ, Engn Res Ctr Nanomat, Kaifeng 475004, Peoples R China

Lei, Zhiwen,Zheng, Peitao,Niu, Liyong,et al. Ultralight, robustly compressible and super-hydrophobic biomass-decorated carbonaceous melamine sponge for oil/water separation with high oil retention[J]. APPLIED SURFACE SCIENCE,2019,489:922-929.

Lei, Zhiwen.,Zheng, Peitao.,Niu, Liyong.,Yang, Yu.,Shen, Jinlai.,...&Wang, Chaoyang.(2019).Ultralight, robustly compressible and super-hydrophobic biomass-decorated carbonaceous melamine sponge for oil/water separation with high oil retention.APPLIED SURFACE SCIENCE,489,922-929.

Lei, Zhiwen,et al."Ultralight, robustly compressible and super-hydrophobic biomass-decorated carbonaceous melamine sponge for oil/water separation with high oil retention".APPLIED SURFACE SCIENCE 489(2019):922-929.