Facile fabrication of environmentally friendly bio-based superhydrophobic surfaces via UV-polymerization for self-cleaning and high efficient oil/water separation

Abstract A novel, versatile, environment-friendly, and economical method was developed to fabricate functional superhydrophobic surfaces on various substrates, including wood, bamboo, cotton, filter paper, sponge, glass, textile, and copper. This method involves synthesizing a two-component modifier solution consisting of SiO2 nanoparticles combination with poly(methylhydrogen)siloxane (PMHS) modification. The superhydrophobicity of the coated surfaces was created by PMHS combined with SiO2 nanoparticles to construct a rough hierarchical structure on the substrate surface. As a result, all superhydrophobic surfaces were maintained under an indoor environment and relative humidity (RH) of 50% for 30 days. Furthermore, the superhydrophobic surfaces were also maintained at environmental conditions of minus 20℃ for 24 hours. It was also confirmed that these surfaces exhibited excellent self-cleaning, oil/water separation, and elimination of underwater oil properties. The method for fabricating superhydrophobic materials proposed in this study will have great application potential in preparing large-scale superhydrophobic surfaces for use in ancient building protection.

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Synthesis of Durable Superhydrophobic Coating and Its Applications in Oil/Water Separation

Science of Advanced Materials ◽

10.1166/sam.2020.3690 ◽

2020 ◽

Vol 12 (5) ◽

pp. 676-684 ◽

Cited By ~ 3

Author(s):

Guo-Qiang Xi ◽

Jun-Feng Li ◽

Hui Deng ◽

Ming-Guo Ma

Keyword(s):

Water Resistance ◽

Collection Efficiency ◽

Superhydrophobic Surfaces ◽

Superhydrophobic Coating ◽

Water Contact ◽

Water Separation ◽

Potential Applications ◽

Oil Water Separation ◽

Oil Water ◽

Self Cleaning

Superhydrophobic surfaces have received enormous attention thanking to their potential applications in the areas of anti-icing, anti-contamination, and oil/water separation. Herein, we have successfully prepared superhydrophobic surfaces, which were synthesized by using the polydimethylsiloxane (PDMS) as adhesive and the magnesium palmitate (Mg-P) were evently coated to form roughness on the surfaces of glass, textile, stainless steel mesh, and paper. The as-fabricated superhydrophobic surfaces possessed excellent water-resistance, self-cleaning properties, durability, and robustness. Remarkably, in the actual oil/water separation, the water contact angle and oil collection efficiency of the superhydrophobic mesh were still more than 150° and 91% even after separation over 10 cycles, respectively. Thus, the superhydrophobic coating has applications potential in self-cleaning, anti-contamination, and oil/water separation fields.

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Facile fabrication of raspberry-like composite microspheres for the construction of superhydrophobic films and applications in highly efficient oil–water separation

RSC Advances ◽

10.1039/c7ra07250c ◽

2017 ◽

Vol 7 (63) ◽

pp. 39471-39479 ◽

Cited By ~ 30

Author(s):

Mingguang Yu ◽

Qing Wang ◽

Min Zhang ◽

Qianjun Deng ◽

Dongchu Chen

Keyword(s):

Superhydrophobic Surfaces ◽

Synthetic Route ◽

Water Separation ◽

Lotus Effect ◽

Highly Efficient ◽

Composite Microspheres ◽

Oil Water Separation ◽

Facile Fabrication ◽

Oil Water

Inspired by the “lotus effect”, we proposed a facile synthetic route toward raspberry-like PS@SiO2 microspheres, which further lead to superhydrophobic surfaces.

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Self-cleaning, underwater writable, heat-insulated and photocatalytic cellulose membrane for high-efficient oil/water separation and removal of hazardous organic pollutants

Progress in Organic Coatings ◽

10.1016/j.porgcoat.2021.106311 ◽

2021 ◽

Vol 157 ◽

pp. 106311

Author(s):

Zuozhu Yin ◽

Feng Yuan ◽

Min Li ◽

Mingshan Xue ◽

Dongpeng Zhou ◽

...

Keyword(s):

Organic Pollutants ◽

Cellulose Membrane ◽

Water Separation ◽

High Efficient ◽

Oil Water Separation ◽

Oil Water ◽

Self Cleaning

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CHAPTER 5. Lotus Effect-based Superhydrophobic Surfaces: Candle Soot as a Promising Class of Nanoparticles for Self-cleaning and Oil–Water Separation Applications

Green Chemistry Series - Green Chemistry for Surface Coatings, Inks and Adhesives ◽

10.1039/9781788012997-00092 ◽

2019 ◽

pp. 92-119 ◽

Cited By ~ 1

Author(s):

Sanjay S. Latthe ◽

Kazuya Nakata ◽

Rainer Höfer ◽

Akira Fujishima ◽

Chiaki Terashima

Keyword(s):

Superhydrophobic Surfaces ◽

Water Separation ◽

Lotus Effect ◽

Candle Soot ◽

Oil Water Separation ◽

Oil Water ◽

Self Cleaning

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Robust fluorine-free superhydrophobic PDMS–ormosil@fabrics for highly effective self-cleaning and efficient oil–water separation

Journal of Materials Chemistry A ◽

10.1039/c6ta04420d ◽

2016 ◽

Vol 4 (31) ◽

pp. 12179-12187 ◽

Cited By ~ 248

Author(s):

Chunyan Cao ◽

Mingzheng Ge ◽

Jianying Huang ◽

Shuhui Li ◽

Shu Deng ◽

...

Keyword(s):

Environmentally Friendly ◽

Water Separation ◽

Highly Effective ◽

Oil Water Separation ◽

Oil Water ◽

Self Cleaning

Robust superhydrophobic fabrics constructed by a novel environmentally friendly coating strategy demonstrate multifunctional applications for effective anti-fouling, self-cleaning and versatile oil/water separation.

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Surface engineering with microstructured gel networks for superwetting membranes

Journal of Materials Chemistry A ◽

10.1039/d0ta12278e ◽

2021 ◽

Author(s):

Yuandong Jia ◽

Kecheng Guan ◽

Pengfei Zhang ◽

Qin Shen ◽

Shengyao Wang ◽

...

Keyword(s):

Surface Engineering ◽

Water Harvesting ◽

Structure And Properties ◽

Water Separation ◽

Distinct Structure ◽

Oil Water Separation ◽

Oil Water ◽

Self Cleaning

Superwetting surfaces have several applications, such as self-cleaning, anti-fouling, anti-corrosion, water harvesting, and oil–water separation, owing to their distinct structure and properties. Hydrogel-based coatings are particularly attractive owing to their...

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