A robust and antibacterial superhydrophobic cotton fabric with sunlight-driven self-cleaning performance for oil/water separation

Cellulose ◽  
2021 ◽  
Author(s):  
Hongyu Liu ◽  
Lin Yang ◽  
Yifei Zhan ◽  
Jianwu Lan ◽  
Jiaojiao Shang ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Water Separation ◽  
Cleaning Performance ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

scholarly journals Preparation of fluorine-free superhydrophobic and wear-resistant cotton fabric with a UV curing reaction for self-cleaning and oil/water separation

RSC Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4660-4671
Author(s):  
Yaofa Luo ◽  
Shuang Wang ◽  
Xihan Fu ◽  
Xiaosheng Du ◽  
Haibo Wang ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Uv Curing ◽  
Water Separation ◽  
Wear Resistant ◽  
Curing Reaction ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

A durable superhydrophobic, self-cleaning cotton fabric based on UV curing was prepared and used in the field of oil/water separation.

scholarly journals Hydrophobic and Anti-Fouling Performance of Surface on Parabolic Morphology

2020 ◽  
Vol 17 (2) ◽  
pp. 644
Author(s):  
Yu Li ◽  
Shengke Yang ◽  
Yangyang Chen ◽  
Dan Zhang
Keyword(s):  
Contact Angle ◽  
Chemical Oxidation ◽  
The Self ◽  
Separation Performance ◽  
Copper Sheet ◽  
Water Separation ◽  
Cleaning Performance ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

The hydrophobicity and anti-fouling properties of materials have important application value in industrial and agricultural production and people’s daily life. To study the relationship between the unit width L0 of the parabolic hydrophobic material and the hydrophobicity and anti-fouling properties, the rough surface structure of the parabolic with different widths was prepared by grinding with different SiC sandpapers, and further, to obtain hydrophobic materials through chemical oxidation and chemical etching, and modification with stearic acid (SA). The morphology, surface wetting and anti-fouling properties of the modified materials were characterized by SEM and contact angle measurement. The oil–water separation performance and self-cleaning performance of the materials were explored. The surface of the modified copper sheet forms a rough structure similar to a paraboloid. When ground with 1500 grit SiC sandpaper, it is more conducive to increase the hydrophobicity of the copper sheet surface and increase the contact angle of water droplets on the copper surface. Additionally, the self-cleaning and anti-fouling experiments showed that as L0 decreases, copper sheets were less able to stick to foreign things such as soil, and the better the self-cleaning and anti-fouling performance was. Based on the oil–water separation experiment of copper mesh, the lower L0 has a higher oil–water separation efficiency. The results showed that material with parabolic morphology has great self-cleaning, anti-fouling, and oil–water separation performance. The smaller the L0 was, the larger the contact angle and the better hydrophobic performance and self-cleaning performance were.

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)’.

Preparation of carbon cloth membrane with visible light induced self-cleaning performance for oil-water separation

2020 ◽  
Vol 403 ◽  
pp. 126372
Author(s):  
Yuxin Song ◽  
Jihui Lang ◽  
Jiale Guo ◽  
Qi Zhang ◽  
Qiang Han ◽  
...  
Keyword(s):  
Visible Light ◽  
Carbon Cloth ◽  
Water Separation ◽  
Cleaning Performance ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

scholarly journals Preparation of durable superhydrophobic cotton fabric for self-cleaning and oil–water separation

2021 ◽  
Author(s):  
Qingbo Xu ◽  
Xiating Ke ◽  
Zongqian Wang ◽  
Peng Wang ◽  
Changlong Li
Keyword(s):  
Surface Energy ◽  
Cotton Fabric ◽  
Superhydrophobic Surface ◽  
Lower Surface ◽  
Cotton Fabrics ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning ◽  
Fabric Surface

Abstract Improving the surface roughness and reducing the surface energy are the main strategies for constructing cotton fabrics with superhydrophobic surface. However, the complex finishing process and poor durability still impede the production and application of superhydrophobic cotton fabrics. Therefore, it is critical to produce superhydrophobic fabrics with excellent durability via a noncomplicated method. In this work, monomers of methyl methacrylate (MMA) and trifluoroethyl methacrylate (TFMA) were polymerized via free radical polymerization to produce a fluoropolymer. Then, the fabric was coated with the fluoropolymer to construct a superhydrophobic surface via the pad-dry-cure technology. The TFMA unit in the fluoropolymer had lower surface energy than the MMA unit. Under the high-temperature curing condition, the MMA unit in the fluoropolymer was grafted onto the cotton fabric via transesterification, and the TFMA was exposed on the fabric surface. The finished fabric showed durable superhydrophobic properties, outstanding oil–water separation properties, and excellent self-cleaning properties. Given the results, the finished fabric has great potential application in clothing and industrial fields.

scholarly journals Robust ZnO/HNTs-Based Superhydrophobic Cotton Fabrics With UV Shielding, Self-Cleaning, Photocatalysis, and Oil/Water Separation

2021 ◽  
Author(s):  
Wei xu ◽  
LiHui Xu ◽  
Hong Pan ◽  
Liming Wang ◽  
Yong Shen ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Zno Nanoparticles ◽  
Halloysite Nanotubes ◽  
Cotton Fabrics ◽  
Hybrid Particles ◽  
Water Separation ◽  
Uv Shielding ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

Abstract In this work, robust superhydrophobic cotton fabrics with UV shielding, self-cleaning, photocatalysis, and oil/water separation were successfully prepared based on micro/nano hierarchical ZnO/HNTs (halloysite nanotubes) hybrid particles and silicone elastomer polydimethylsiloxane (PDMS). ZnO/HNTs hybrid particles were prepared by in-situ growth of ZnO nanoparticles on the surface of halloysite nanotubes (HNTs). ZnO/HNTs hybrid particles and PDMS were used to successively coat cotton fabric by dip-coating approach. The coated cotton fabric displayed excellent superhydrophobicity with a water contact angle of 162.5 ± 1° and photocatalytic degradation of methylene blue solution under UV irradiation owing to the roughness and photocatalytic performance provided by micro/nano hierarchical ZnO/HNTs hybrid particles and low surface energy achieved by PDMS. The as-prepared fabric also displayed outstanding self-cleaning and antifouling properties. In addition, due to its both superhydrophobic and superoleophilic characteristics, the as-prepared cotton fabric can be used to separate several oil/water mixtures and showed good recoverability. The superhydrophobic cotton fabric also exhibited excellent UV shielding performance with a large UV protection factor of 1643.28 due to strong ultraviolet-absorption, light scattering and frequent light reflection of ZnO nanoparticles in ZnO/HNTs composites coated on cotton fabric. Importantly, the as-prepared fabric retained superhydrophobic performance after 2000 cycles rubbing, 90h UV illumination, and immersing in acidic and alkali solutions with different pH values ranging from 1 to 14 for 1 h. These characteristics make multifunctional cotton fabrics a satisfactory candidate in various promising fields.

Bio-inspired cotton fabric with superhydrophobicity for high-efficiency self-cleaning and oil/water separation

Cellulose ◽  
2020 ◽  
Vol 27 (12) ◽  
pp. 7283-7296 ◽  
Author(s):  
Ruiyang Lu ◽  
Yucong Yu ◽  
Gafurov Adkhamjon ◽  
Wenli Gong ◽  
Xiaoqing Sun ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
High Efficiency ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

Self-cleaning pH/thermo-responsive cotton fabric with smart-control and reusable functions for oil/water separation

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24076-24082 ◽  
Author(s):  
J. D. Wu ◽  
C. Zhang ◽  
D. J. Jiang ◽  
S. F. Zhao ◽  
Y. L. Jiang ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Water Separation ◽  
Dual Responsive ◽  
Smart Control ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

Our study developed a pH and temperature dual-responsive system with self-cleaning and reusable functions for oil/water separation.

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