Dynamic graphene filters for selective gas-water-oil separation.

Abstract:

:Selective filtration of gas, water, and liquid or gaseous oil is essential to prevent possible environmental pollution and machine/facility malfunction in oil-based industries. Novel materials and structures able to selectively and efficiently filter liquid and vapor in various types of solutions are therefore in continuous demand. Here, we investigate selective gas-water-oil filtration using three-dimensional graphene structures. The proposed approach is based on the adjustable wettability of three-dimensional graphene foams. Three such structures are developed in this study; the first allows gas, oil, and water to pass, the second blocks water only, and the third is exclusively permeable to gas. In addition, the ability of three-dimensional graphene structures with a self-assembled monolayer to selectively filter oil is demonstrated. This methodology has numerous potential practical applications as gas, water, and/or oil filtration is an essential component of many industries.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Bong J,Lim T,Seo K,Kwon CA,Park JH,Kwak SK,Ju S

doi

10.1038/srep14321

subject

Has Abstract

pub_date

2015-09-23 00:00:00

pages

14321

issn

2045-2322

pii

srep14321

journal_volume

5

pub_type

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