A carbon nanotube-embedded conjugated polymer mesh with controlled oil absorption and surface regeneration via in situ wettability switch

Jian Xu, Shichen Fu, Wei Xu, Eui-Hyeok Yang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper presents a mesh-type absorbent made of a carbon nanotube (CNT)-embedded polypyrrole dodecylbenzenesulfonate (PPy(DBS)) surface for controlled absorption and release of oils and regeneration of polymer surfaces toward continuous oil/water separation. The mesh absorbs dichloromethane (DCM) under oxidation in aqueous environment and releases them under reduction via in situ switching of underwater wettability. CNTs were grown out of stainless steel surfaces and embedded into the PPy(DBS) film, which enhanced the switchable wettability as well as the surface regeneration. The CNT-embedded morphology improved oil retention by a factor of two in an oxidized state and decreased wettability switch time by 16% in a reduced state over the mesh without CNT embedment during 250 redox cyclic testing. A rolled 2 cm × 3 cm CNT-embedded PPy(DBS) mesh was furthermore used to demonstrate the continuous absorption and release of oils, during which DCM of 16 times of the absorbent weight was collected in 50 redox cycles.

Original languageEnglish (US)
Pages (from-to)790-797
Number of pages8
JournalJournal of Colloid And Interface Science
Volume532
DOIs
StatePublished - Dec 15 2018

Fingerprint

Carbon Nanotubes
Conjugated polymers
Wetting
Oils
Switches
Methylene Chloride
Time switches
Stainless Steel
Polymers
Oxidation
Water
Testing
Oxidation-Reduction

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Biomaterials
  • Colloid and Surface Chemistry

Cite this

@article{855b2ce5624b47e492122ef4503dfbd9,
title = "A carbon nanotube-embedded conjugated polymer mesh with controlled oil absorption and surface regeneration via in situ wettability switch",
abstract = "This paper presents a mesh-type absorbent made of a carbon nanotube (CNT)-embedded polypyrrole dodecylbenzenesulfonate (PPy(DBS)) surface for controlled absorption and release of oils and regeneration of polymer surfaces toward continuous oil/water separation. The mesh absorbs dichloromethane (DCM) under oxidation in aqueous environment and releases them under reduction via in situ switching of underwater wettability. CNTs were grown out of stainless steel surfaces and embedded into the PPy(DBS) film, which enhanced the switchable wettability as well as the surface regeneration. The CNT-embedded morphology improved oil retention by a factor of two in an oxidized state and decreased wettability switch time by 16{\%} in a reduced state over the mesh without CNT embedment during 250 redox cyclic testing. A rolled 2 cm × 3 cm CNT-embedded PPy(DBS) mesh was furthermore used to demonstrate the continuous absorption and release of oils, during which DCM of 16 times of the absorbent weight was collected in 50 redox cycles.",
author = "Jian Xu and Shichen Fu and Wei Xu and Eui-Hyeok Yang",
year = "2018",
month = "12",
day = "15",
doi = "https://doi.org/10.1016/j.jcis.2018.08.041",
language = "English (US)",
volume = "532",
pages = "790--797",
journal = "Journal of Colloid and Interface Science",
issn = "0021-9797",
publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - A carbon nanotube-embedded conjugated polymer mesh with controlled oil absorption and surface regeneration via in situ wettability switch

AU - Xu, Jian

AU - Fu, Shichen

AU - Xu, Wei

AU - Yang, Eui-Hyeok

PY - 2018/12/15

Y1 - 2018/12/15

N2 - This paper presents a mesh-type absorbent made of a carbon nanotube (CNT)-embedded polypyrrole dodecylbenzenesulfonate (PPy(DBS)) surface for controlled absorption and release of oils and regeneration of polymer surfaces toward continuous oil/water separation. The mesh absorbs dichloromethane (DCM) under oxidation in aqueous environment and releases them under reduction via in situ switching of underwater wettability. CNTs were grown out of stainless steel surfaces and embedded into the PPy(DBS) film, which enhanced the switchable wettability as well as the surface regeneration. The CNT-embedded morphology improved oil retention by a factor of two in an oxidized state and decreased wettability switch time by 16% in a reduced state over the mesh without CNT embedment during 250 redox cyclic testing. A rolled 2 cm × 3 cm CNT-embedded PPy(DBS) mesh was furthermore used to demonstrate the continuous absorption and release of oils, during which DCM of 16 times of the absorbent weight was collected in 50 redox cycles.

AB - This paper presents a mesh-type absorbent made of a carbon nanotube (CNT)-embedded polypyrrole dodecylbenzenesulfonate (PPy(DBS)) surface for controlled absorption and release of oils and regeneration of polymer surfaces toward continuous oil/water separation. The mesh absorbs dichloromethane (DCM) under oxidation in aqueous environment and releases them under reduction via in situ switching of underwater wettability. CNTs were grown out of stainless steel surfaces and embedded into the PPy(DBS) film, which enhanced the switchable wettability as well as the surface regeneration. The CNT-embedded morphology improved oil retention by a factor of two in an oxidized state and decreased wettability switch time by 16% in a reduced state over the mesh without CNT embedment during 250 redox cyclic testing. A rolled 2 cm × 3 cm CNT-embedded PPy(DBS) mesh was furthermore used to demonstrate the continuous absorption and release of oils, during which DCM of 16 times of the absorbent weight was collected in 50 redox cycles.

UR - http://www.scopus.com/inward/record.url?scp=85051662729&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85051662729&partnerID=8YFLogxK

U2 - https://doi.org/10.1016/j.jcis.2018.08.041

DO - https://doi.org/10.1016/j.jcis.2018.08.041

M3 - Article

VL - 532

SP - 790

EP - 797

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

ER -