Smart candle soot coated membranes for on-demand immiscible oil/water mixture and emulsion switchable separation

Nanoscale ◽  
2017 ◽  
Vol 9 (36) ◽  
pp. 13610-13617 ◽  
Author(s):  
Jian Li ◽  
Zhihong Zhao ◽  
Dianming Li ◽  
Haifeng Tian ◽  
Fei Zha ◽  
...  
Keyword(s):  
Water Mixture ◽  
On Demand ◽  
Candle Soot ◽  
Coated Membranes ◽  
Emulsion Separation ◽  
Oil Water ◽  
Underwater Superoleophobicity

Candle soot coated membranes with underwater superoleophobicity and underoil superhydrophobicity were used for on-demand immiscible oil/water mixture and emulsion separation.

3D Superhydrophobic Sponge Coated with Magnesium Hydroxide for Effective Oil/Water Mixture and Emulsion Separation

2020 ◽  
Vol 59 (25) ◽  
pp. 11713-11722
Author(s):  
Shuaizhuo Liu ◽  
Qian Zhang ◽  
Leiyi Fan ◽  
Rui Wang ◽  
Mingjun Yang ◽  
...  
Keyword(s):  
Magnesium Hydroxide ◽  
Water Mixture ◽  
Emulsion Separation ◽  
Oil Water

A robust surface with superhydrophobicity and underwater superoleophobicity for on-demand oil/water separation

Nanoscale ◽  
2021 ◽  
Author(s):  
Siyang Zhao ◽  
Yongmin Liang ◽  
Yu Yang ◽  
Jinxia Huang ◽  
Zhiguang Guo ◽  
...  
Keyword(s):  
Water Separation ◽  
On Demand ◽  
Oil Water Separation ◽  
Oil Water ◽  
Underwater Superoleophobicity ◽  
Hydrophobic Areas

Superhydrophobic and underwater superoleophobic surface combines superiorities of the two opposite wettabilities. Generally, such surface is constructed by hydrophilic areas and hydrophobic areas treated by fluorine-containing modifiers. However, the surface...

scholarly journals 3D Printing of an Oil/Water Mixture Separator with In Situ Demulsification and Separation

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 774 ◽  
Author(s):  
Changyou Yan ◽  
Shuanhong Ma ◽  
Zhongying Ji ◽  
Yuxiong Guo ◽  
Zhilu Liu ◽  
...  
Keyword(s):  
3D Printing ◽  
Fused Deposition Modeling ◽  
Separation Efficiency ◽  
Water Mixture ◽  
Fused Deposition ◽  
Oil In Water ◽  
Wide Range ◽  
Hydrogel Coatings ◽  
Oil Water ◽  
Underwater Superoleophobicity

Currently, many meshes, membranes, and fabrics with extreme wettability of superhydrophobicity/superoleophilicity, or superhydrophilicity and underwater superoleophobicity are promising candidates for oil/water mixture separation. Nevertheless, a facile yet effective way to design and fabricate porous mesh still remains challenging. In this work, fused deposition modeling (FDM) 3D printing of Fe/polylactic acid (PLA) composites was employed to fabricate superhydrophilic and underwater superoleophobic mesh (S-USM) with hydrogel coatings via the surface polymerization of Fe(II)-mediated redox reaction. In addition, salt of aluminum chloride was incorporated within the hydrogel coating, which was attributed to strengthening the demulsification of oil-in-water emulsions, resulting in efficient separation of oil-in-water mixtures. The S-USM was efficient for a wide range of oil-in-water mixtures, such as dodecane, diesel, vegetable oil, and even crude oil, with a separation efficiency of up to 85%. In this study, the flexible design and fabrication of 3D printing were used for the facile creation of spherical oil skimmers with hydrogel coatings that were capable of removing the floating oil. Most importantly, this work is expected to promote post-treatment processes using 3D printing as a new manufacturing technology and, in this way, a series of devices of specific shape and function will be expanded to satisfy desired requirements and bring great convenience to personal life.

Sign in / Sign up

Export Citation Format

Share Document