Bioinspired underwater superoleophobic surface with ultralow oil-adhesion achieved by femtosecond laser microfabrication

Yong, Jiale; Yang, Qing; Zhang, Dongshi; Farooq, Umar; Du, Guangqing; Hou, Xun

doi:10.1039/c4ta01277a

Cited by 170 publications

(168 citation statements)

References 57 publications

(83 reference statements)

Supporting

Mentioning

162

Contrasting

Unclassified

Order By: Relevance

“…23 Chen et al, fabricated a silicon surface that shows hierarchical micro/nanostructure by a femtosecond laser treatment. 21 Similar to fish scales, the resultant surface reveals superhydrophilicity in air and superoleophobicity underwater. However, despite the fact that underwater superoleophobic surfaces have been intensively investigated, current methods still suffer from problems with respect to complex experimental procedures or expensive materials.…”

Section: Introductionmentioning

confidence: 98%

Bioinspired Underwater Superoleophobic Membrane Based on a Graphene Oxide Coated Wire Mesh for Efficient Oil/Water Separation

Liu

Zhang

et al. 2015

ACS Appl. Mater. Interfaces

177

View full text Add to dashboard Cite

Inspired from fish scales that exhibit unique underwater superoleophobicity because of the presence of micronanostructures and hydrophilic slime on their surface, we reported here the facile fabrication of underwater superoleophobic membranes by coating a layer of graphene oxide (GO) on commercially available wire meshes with tunable pore sizes. Using the wire mesh as a ready-made mask, GO-embellished mesh with open apertures (GO@mesh) could be readily fabricated after subsequent O2 plasma treatments from the back side. Interestingly, the congenital microstructures of the crossed microwires in combination with the abundant hydrophilic oxygen-containing groups of the GO layer endow the resultant GO@mesh with unique underwater superoleophobic properties. The antioil tests show that the underwater contact angles of various oils including both organic reagents (undissolved in water) and vegetable oil on GO@mesh exceed 150°, indicating the superoleophobic nature. In a representative experiment, a mixture of bean oil and water that imitates culinary sewage has been well separated with the help of our GO@mesh. GO-embellished wire meshes may find broad applications in sewage purification, especially for the treatment of oil contaminations.

show abstract

Section: Introductionmentioning

confidence: 98%

Bioinspired Underwater Superoleophobic Membrane Based on a Graphene Oxide Coated Wire Mesh for Efficient Oil/Water Separation

Liu

Zhang

et al. 2015

ACS Appl. Mater. Interfaces

177

View full text Add to dashboard Cite

show abstract

“…[ 31 ] The characteristics of fi sh scales suggest that surfaces that are superhydrophilic in air are generally superoleophobic in water. [31][32][33][34] Deserts, which are largely uninhabitable, cover a signifi cant area of the earth's surface. In addition, deserts are encroaching on cities where we live, and often cause air pollution when sandstorms occur.…”

Section: Doi: 101002/admi201500650mentioning

confidence: 99%

“…[31][32][33][34] Sand is an intrinsically superhydrophilic material that will be fully wetted (that is, the spaces between the sand particles will be fi lled with water) when immersed in water. A water cushion will form below an oil droplet placed on a sand layer in water.…”

Section: Doi: 101002/admi201500650mentioning

confidence: 99%

Oil‐Water Separation: A Gift from the Desert

Yong

Yang

Bian

et al. 2016

Adv Materials Inter

Self Cite

137

View full text Add to dashboard Cite

“…The femtosecond laser, a promising tool, has some excellent characteristics in the ablation of micro/nanoscale hierarchical rough structures2425262728, such as non-contact manufacturing, a small heat-affected zone, high precision and non-polluting processes293031. Chen et al .…”

mentioning

confidence: 99%

A highly efficient, stable, durable, and recyclable filter fabricated by femtosecond laser drilling of a titanium foil for oil-water separation

Cao

Wang

et al. 2016

Sci Rep

View full text Add to dashboard Cite

It has been a long standing challenge to efficiently separate oil and water since prehistoric times, and now it has become even more desirable in oily wastewater purification and oil spill cleanup. Here we introduce a super oil–water separation filter with superhydrophilicity and underwater superoleophobicity, fabricated using femtosecond laser micro-hole drilling of a titanium foil. Such a simply-made filter, without any modification, can achieve a separation efficiency exceeding 99% in eight typical oil–water mixtures. It remains highly efficient after 40 cycles of recycling and after suffering erosion by corrosive media. Furthermore, the used filter, polluted with oil, could be recovered by ultraviolet illumination. The flux of filtered water is tunable by simply selecting the aperture of the microhole or the spacing between adjacent microholes. Such advanced functionality is due to roughness and the TiO2 layers on the ablated surface during fabrication. With superhydrophilic and superoleophobic surfaces, this oil-water filer is also suitable for applications in anti-fouling, anti-smudge, anti-fog, and self-cleaning.

show abstract

Bioinspired underwater superoleophobic surface with ultralow oil-adhesion achieved by femtosecond laser microfabrication

Abstract: A method to fabricate superoleophobic silicon surface with ultralow oil-adhesion using a femtosecond laser.

Cited by 170 publications

References 57 publications

Bioinspired Underwater Superoleophobic Membrane Based on a Graphene Oxide Coated Wire Mesh for Efficient Oil/Water Separation

Bioinspired Underwater Superoleophobic Membrane Based on a Graphene Oxide Coated Wire Mesh for Efficient Oil/Water Separation

Oil‐Water Separation: A Gift from the Desert

A highly efficient, stable, durable, and recyclable filter fabricated by femtosecond laser drilling of a titanium foil for oil-water separation

Contact Info

Product

Resources

About