Ultrarobust and Biomimetic Hierarchically Macroporous Ceramic Membrane for Oil–Water Separation Templated by Emulsion-Assisted Self-Assembly Method

2020 ◽  
Vol 12 (31) ◽  
pp. 35555-35562
Author(s):  
Wei Liu ◽  
Gao Yang ◽  
Meipeng Huang ◽  
Jianwei Liang ◽  
Baobao Zeng ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ceramic Membrane ◽  
Water Separation ◽  
Assembly Method ◽  
Oil Water Separation ◽  
Oil Water

Ultra-robust Superhydrophobic/superoleophilic Stainless Mesh Coated by PTFE/SiO2 for Oil/water Separation

MRS Advances ◽  
2018 ◽  
Vol 4 (07) ◽  
pp. 359-367 ◽  
Author(s):  
Chaolang Chen ◽  
Ding Weng ◽  
Awais Mahmood ◽  
Jiadao Wang
Keyword(s):  
Contact Angle ◽  
Self Assembly ◽  
High Efficiency ◽  
Water Contact ◽  
Water Separation ◽  
Low Surface Energy ◽  
Assembly Method ◽  
Potential Applications ◽  
Oil Water Separation ◽  
Oil Water

AbstractIn this study, a superhydrophobic and superoleophilic stainless mesh coated with polytetrafluoroethylene/silicon dioxide (PTFE/SiO2) was fabricated through electrostatic self-assembly method followed by sintering treatment. The PTFE was utilized to construct low-surface-energy surface and the SiO2 nanoparticles were added to enhance its surface roughness. The as-prepared stainless mesh exhibited desirable superhydrophobicity and superoleophilicity with a water contact angle of 152° and oil contact angle of 0°. The coated stainless mesh could separate a variety of oil/water mixtures with high efficiency and it also exhibited good recyclability. Moreover, the corrosion-resistance of stainless mesh was greatly improved by coating it with PTFE. The thermogravimetric analysis (TGA) measurements showed that the coated mesh could withstand high temperature of up to 430°C, indicating excellent thermal-resistance. It is believed that this ultra-robust stainless mesh would have significant potential applications in industry.

A facile surface modification of a PVDF membrane via CaCO3 mineralization for efficient oil/water emulsion separation

2020 ◽  
Vol 44 (48) ◽  
pp. 20999-21006
Author(s):  
Junda Wu ◽  
Atian Xie ◽  
Jin Yang ◽  
Jiangdong Dai ◽  
Chunxiang Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
Layer By Layer ◽  
Assembly Process ◽  
Water Separation ◽  
Water Emulsion ◽  
Pvdf Membrane ◽  
Inorganic Particles ◽  
Emulsion Separation ◽  
Oil Water Separation ◽  
Oil Water

A facile modification of a PVDF membrane using CaCO3 inorganic particles via a layer-by-layer self-assembly process for efficient oil/water separation.

scholarly journals Self-assembly modification of polyurethane sponge for application in oil/water separation

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40378-40387 ◽  
Author(s):  
Liping Liang ◽  
Yuanyuan Xue ◽  
Qian Wu ◽  
Yanyan Dong ◽  
Xu Meng
Keyword(s):  
Self Assembly ◽  
Separation Property ◽  
Water Separation ◽  
Oil Water Separation ◽  
Polyurethane Sponge ◽  
Oil Water

A polyurethane (PU) sponge with excellent oil/water separation property has been successfully prepared by modifying with octadecyltrichlorosilane (OTS) self-assemblies.

Oily Water Treatment Using Ceramic Membrane in Presence of Swirling Flow Induced by a Tangential Inlet via CFD

2014 ◽  
Vol 348 ◽  
pp. 51-57 ◽  
Author(s):  
Tássia Vieira Mota ◽  
Helton Gomes Alves ◽  
Severino Rodrigues Farias Neto ◽  
Antônio Gilson Barbosa de Lima
Keyword(s):  
Ceramic Membrane ◽  
Volume Fraction ◽  
Ceramic Membranes ◽  
Particle Model ◽  
Water Separation ◽  
Significant Difference ◽  
Oil Water Separation ◽  
Oily Water ◽  
Oil Water ◽  
Tangential Inlet

In recent years, attention has been given to the processes controlling the emission of oily effluents and their environmental impact. Many industrial processes generate large volumes of water contaminated with oil, called oily waters. The oily water must be treated before its discard in order to meet the criteria established by environmental agencies (for example in Brazil, 20 mg/L). In present days, the process of separating oil/water with ceramic membranes has attracted the attention of many researchers [1,2]. In this sense, the aim of this study is to evaluate the influence of the tangential inlet shape in the oil/water separation via ceramic membranes. We use a mathematical multiphase flow model to describe the oil-water separation, based on the particle model. Here oil is the dispersed phase while water the continuous phase. To model the turbulence effect we use the RNGk-εmodel. All simulations were carried out using the Ansys CFX ® commercial code. Results of streamlines and velocity, pressure and volume fraction of phase fields are present and analyzed. The numerical results indicate that no significant difference when using a circular or rectangular pipe with the same cross-sectional area.

Hierarchical rough surfaces formed by LBL self-assembly for oil–water separation

2014 ◽  
Vol 2 (30) ◽  
pp. 11830-11838 ◽  
Author(s):  
Xiaoyu Li ◽  
Dan Hu ◽  
Kun Huang ◽  
Chuanfang Yang
Keyword(s):  
Stainless Steel ◽  
Removal Efficiency ◽  
Self Assembly ◽  
Water Separation ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Oil In Water Emulsion

Stainless steel felt modified with hierarchically structured coatings and hydrophobicity can achieve a removal efficiency of greater than 99% for oil-in-water emulsion separation.

Tension gradient self-assembly to facilely fabricate polytetrafluoroethylene coatings for oil–water separation

2019 ◽  
Vol 9 (02) ◽  
pp. 690-696
Author(s):  
Dong Feng ◽  
Ding Weng ◽  
Chaolang Chen ◽  
Jiadao Wang
Keyword(s):  
Self Assembly ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Image Position

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