Superhydrophobic and superelastic thermoplastic polyurethane/multiwalled carbon nanotubes porous monolith for durable oil/water separation

2020 ◽  
Vol 21 ◽  
pp. 100378 ◽  
Author(s):  
Shihang Ye ◽  
Bo Wang ◽  
Yutao Shi ◽  
Bingzhong Wang ◽  
Yiru Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Thermoplastic Polyurethane ◽  
Multiwalled Carbon ◽  
Water Separation ◽  
Porous Monolith ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Carbon Nanotubes and Polydopamine Modified Poly(dimethylsiloxane) Sponges for Efficient Oil–Water Separation

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2431
Author(s):  
Wen Zhang ◽  
Juanjuan Wang ◽  
Xue Han ◽  
Lele Li ◽  
Enping Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Large Scale ◽  
Absorption Capacity ◽  
Potential Candidate ◽  
Hard Template ◽  
Water Separation ◽  
Industrial Oil ◽  
The Matrix ◽  
Oil Water Separation ◽  
Oil Water

In this paper, effective separation of oil from both immiscible oil–water mixtures and oil-in-water (O/W) emulsions are achieved by using poly(dimethylsiloxane)-based (PDMS-based) composite sponges. A modified hard template method using citric acid monohydrate as the hard template and dissolving it in ethanol is proposed to prepare PDMS sponge composited with carbon nanotubes (CNTs) both in the matrix and the surface. The introduction of CNTs endows the composite sponge with enhanced comprehensive properties including hydrophobicity, absorption capacity, and mechanical strength than the pure PDMS. We demonstrate the successful application of CNT-PDMS composite in efficient removal of oil from immiscible oil–water mixtures within not only a bath absorption, but also continuous separation for both static and turbulent flow conditions. This notable characteristic of the CNT-PDMS sponge enables it as a potential candidate for large-scale industrial oil–water separation. Furthermore, a polydopamine (PDA) modified CNT-PDMS is developed here, which firstly realizes the separation of O/W emulsion without continuous squeezing of the sponge. The combined superhydrophilic and superoleophilic property of PDA/CNT-PDMS is assumed to be critical in the spontaneously demulsification process.

Hierarchical oil–water separation membrane using carbon fabrics decorated with carbon nanotubes

2016 ◽  
Vol 286 ◽  
pp. 148-154 ◽  
Author(s):  
Chien-Te Hsieh ◽  
Jo-Pei Hsu ◽  
Hsiu-Hui Hsu ◽  
Wei-Hsun Lin ◽  
Ruey-Shin Juang
Keyword(s):  
Carbon Nanotubes ◽  
Water Separation ◽  
Separation Membrane ◽  
Oil Water Separation ◽  
Oil Water ◽  
Carbon Fabrics
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