Continuous, High-Speed, and Efficient Oil/Water Separation using Meshes with Antagonistic Wetting Properties

2015 ◽  
Vol 7 (34) ◽  
pp. 18915-18919 ◽  
Author(s):  
Gary J. Dunderdale ◽  
Chihiro Urata ◽  
Tomoya Sato ◽  
Matt W. England ◽  
Atsushi Hozumi
Keyword(s):  
High Speed ◽  
Water Separation ◽  
Wetting Properties ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Controllable synthesis of pomelo peel-based aerogel and its application in adsorption of oil/organic pollutants

2019 ◽  
Vol 6 (2) ◽  
pp. 181823 ◽  
Author(s):  
Guangyu Shi ◽  
Yizhu Qian ◽  
Fengzhi Tan ◽  
Weijie Cai ◽  
Yuan Li ◽  
...  
Keyword(s):  
High Speed ◽  
Chemical Properties ◽  
Absorption Capacity ◽  
High Porosity ◽  
X Ray Diffraction ◽  
Water Separation ◽  
Physico Chemical ◽  
Wide Range ◽  
Oil Water Separation ◽  
Oil Water

Oil/water separation is a field of high significance as it might efficiently resolve the contamination of industrial oily wastewater and other oil/water pollution. In this paper, an environmentally-friendly hydrophobic aerogel with high porosity and low density was successfully synthesized with renewable pomelo peels (PPs) as precursors. Typically, a series of sponge aerogels (HPSA-0, HPSA-1 and HPSA-2) were facilely prepared via high-speed dispersion, freeze-drying and silanization with methyltrimethoxysilane. Indeed, the physical properties of aerogel such as density and pore diameter could be tailored by different additives (filter paper fibre and polyvinyl alcohol). Hence, their physico-chemical properties including internal morphology and chemical structure were characterized in detail by Fourier transform infrared, Brunauer–Emmett–Teller, X-ray diffraction, scanning electron microscope, Thermal gravimetric analyzer (TG) etc. Moreover, the adsorption capacity was further determined and the results revealed that the PP-based aerogels presented excellent adsorption performance for a wide range of oil products and/or organic solvents (crude oil 49.8 g g −1 , soya bean oil 62.3 g g −1 , chloroform 71.3 g g −1 etc.). The corresponding cyclic tests showed the absorption capacity decreased slightly from 94.66% to 93.82% after 10 consecutive cycles, indicating a high recyclability.

Fabrication of superoleophobic cotton fabric for multi-purpose applications

2019 ◽  
Vol 377 (2150) ◽  
pp. 20190129 ◽  
Author(s):  
Balraj K. Tudu ◽  
Aditya Kumar ◽  
Bharat Bhushan
Keyword(s):  
Cotton Fabric ◽  
Water Separation ◽  
Practical Applications ◽  
Wetting Properties ◽  
Stain Resistance ◽  
Mechanical Durability ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning ◽  
Liquid Repellency

Superoleophobicity is of interest for practical applications such as liquid repellency, self-cleaning, stain resistance, anti-bacterial properties and oil–water separation. In this work, the superoleophobic coating on cotton fabric was applied by simple immersion in TiO 2 nanoparticles, perfluorodecyltriethoxysilane and tertraethylorthosilicate solution. Its anti-wetting properties, surface morphology and functionality were characterized. The coated cotton fabric shows superoleophobicity with oil (surface tension more than 27 mN m −1 ) contact angle of 152° and tilt angle of 6°. Furthermore, the superoleophobic cotton fabric was demonstrated to exhibit self-cleaning, stain resistance, mechanical durability, chemical stability, thermal stability, anti-bacterial properties and oil–water separation capabilities. This article is part of the theme issue ‘Bioinspired materials and surfaces for green science and technology (part 2)’.

scholarly journals Superhydrophobic paper with mussel-inspired polydimethylsiloxane–silica nanoparticle coatings for effective oil/water separation

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8008-8015 ◽  
Author(s):  
Xuewei Ruan ◽  
Tiancheng Xu ◽  
Dingjiang Chen ◽  
Ziwen Ruan ◽  
Haitu Hu
Keyword(s):  
Low Cost ◽  
Silica Nanoparticle ◽  
Water Separation ◽  
Wetting Properties ◽  
Oil Water Separation ◽  
Oil Water ◽  
Nanoparticle Coatings ◽  
Superhydrophobic Paper

Although various filtration materials with (super)wetting properties have been fabricated for effective oil/water separation, eco-friendly and low-cost materials are still highly desired.

scholarly journals Modeling oil–water separation with controlled wetting properties

2021 ◽  
Vol 154 (10) ◽  
pp. 104704
Author(s):  
Cristina Gavazzoni ◽  
Marion Silvestrini ◽  
Carolina Brito
Keyword(s):  
Water Separation ◽  
Wetting Properties ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Hydrophilic nanofibrous composite membrane prepared by melt-blending extrusion for effective separation of oil/water emulsion

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7108-7115 ◽  
Author(s):  
Dandan Xu ◽  
Xiaoting Zheng ◽  
Ru Xiao
Keyword(s):  
Composite Membrane ◽  
High Speed ◽  
Composite Membranes ◽  
Melt Blending ◽  
Nanofiber Membrane ◽  
Water Separation ◽  
Nanofiber Composite ◽  
Water Emulsion ◽  
Oil Water Separation ◽  
Oil Water

EVOH nanofiber membrane was prepared by melt blending extrusion and high-speed airflow deposition. Then NCC/EVOH nanofiber composite membranes were obtained via coating and deposition the barrier layer on the surface of the nanofiber membrane for oil/water separation.

scholarly journals Preparation and modification of cellulose sponge and application of oil/water separation

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41713-41719
Author(s):  
Xu Meng ◽  
Yanyan Dong ◽  
Yajun Zhao ◽  
Liping Liang
Keyword(s):  
Surface Wetting ◽  
Water Separation ◽  
Wetting Properties ◽  
Cellulose Sponge ◽  
Oil Water Separation ◽  
Oil Water ◽  
Facile Preparation

This work presents a facile preparation and modification of cellulose sponge with hydrophobic/oleophilic surface wetting properties.

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