Manipulating the surface wettability of polysaccharide based complex membrane for oil/water separation

2019 ◽  
Vol 225 ◽  
pp. 115231 ◽  
Author(s):  
Hajo Yagoub ◽  
Liping Zhu ◽  
Mahmoud H.M.A. Shibraen ◽  
Ali A. Altam ◽  
Dafaalla M.D. Babiker ◽  
...  
Keyword(s):  
Surface Wettability ◽  
Water Separation ◽  
Complex Membrane ◽  
Oil Water Separation ◽  
Oil Water

Complex membrane of cellulose and chitin nanocrystals with cationic guar gum for oil/water separation

2019 ◽  
Vol 136 (37) ◽  
pp. 47947 ◽  
Author(s):  
Hajo Yagoub ◽  
Liping Zhu ◽  
Mahmoud H. M. A. Shibraen ◽  
Xiaowei Xu ◽  
Dafaalla M. D. Babiker ◽  
...  
Keyword(s):  
Guar Gum ◽  
Water Separation ◽  
Complex Membrane ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Electrophoretic Deposition of Graphene Oxide on Laser-Ablated Copper Mesh for Enhanced Oil/Water Separation

Coatings ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 157 ◽  
Author(s):  
Rui Zhou ◽  
Fei Shen ◽  
Jingqin Cui ◽  
Yonggang Zhang ◽  
Huangping Yan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Laser Processing ◽  
High Surface ◽  
Copper Substrate ◽  
Synergetic Effect ◽  
Surface Wettability ◽  
Hole Drilling ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

The fabrication of bionic surfaces resembling hydrophobic plants through micro manufacturing, which creates abundant multi-level micro/nanostructures and elemental variations, has been widely employed to change the surface wettability of metallic materials. Based on the mechanisms for selective permeation of various liquids, it could achieve the function of oil/water separation. Herein, a separation copper membrane fabricated with pulsed laser ablation and modified with graphene oxide (GO) deposition showed a synergetic effect on tunable surface wettability. Micro/nanostructures were generated on the copper substrate membrane through concentric circular scanning, which was followed by hole drilling. Afterwards, charged GO nanosheets were deposited via electrophoresis. The spacing of circular lines, the diameter of the holes and the abundant high-surface-energy hydrophilic oxygen contained in deposited GO amounts could be regulated in the laser processing and deposition, resulting in oleophobicity and hydrophilicity at the same time. The highest contact angle of oil in water of the prepared mesh could reach above 165° with a hole size of 200 µm and a circular line spacing of 100 µm after the laser processing. Water flux and oil-holding capacity, which represent the separation capability of the mesh, were also evaluated. The as-prepared separation mesh also showed great stability under harsh environments.

Hydrogen-bonded methylcellulose/poly(acrylic acid) complex membrane for oil-water separation

2019 ◽  
Vol 367 ◽  
pp. 49-57 ◽  
Author(s):  
Dafaalla M.D. Babiker ◽  
Liping Zhu ◽  
Hajo Yagoub ◽  
Xiaowei Xu ◽  
Xuejian Zhang ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Acid Complex ◽  
Water Separation ◽  
Complex Membrane ◽  
Oil Water Separation ◽  
Oil Water ◽  
Poly Acrylic Acid ◽  
Hydrogen Bonded

Surface wettability switching of metal-organic framework mesh for oil-water separation

2017 ◽  
Vol 189 ◽  
pp. 82-85 ◽  
Author(s):  
Zixi Kang ◽  
Sasa Wang ◽  
Lili Fan ◽  
Zhenyu Xiao ◽  
Rongming Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Surface Wettability ◽  
Water Separation ◽  
Oil Water Separation ◽  
Metal Organic ◽  
Oil Water ◽  
Organic Framework

Microscopic Dimensions Engineering: Stepwise Manipulation of the Surface Wettability on 3D Substrates for Oil/Water Separation

2015 ◽  
Vol 28 (5) ◽  
pp. 936-942 ◽  
Author(s):  
Ran Du ◽  
Xin Gao ◽  
Qingliang Feng ◽  
Qiuchen Zhao ◽  
Pan Li ◽  
...  
Keyword(s):  
Surface Wettability ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water
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