Imperial College London
Alternate

ProfessorDarylWilliams

Faculty of Engineering, Department of Chemical Engineering

Professor of Particle Science
 
 
 
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Contact

 

+44 (0)20 7594 5611d.r.williams Website

 
 
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Location

 

439ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Cherukupally:2021:10.1126/sciadv.abc7926,
author = {Cherukupally, P and Sun, W and Williams, DR and Ozin, GA and Bilton, AM},
doi = {10.1126/sciadv.abc7926},
journal = {Science Advances},
title = {Wax-wetting sponges for oil droplets recovery from frigid waters},
url = {http://dx.doi.org/10.1126/sciadv.abc7926},
volume = {7},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Energy-efficient recovery of oil droplets from ice-cold water, such as oil sands tailings, marine, and arctic oil spills, is challenging. In particular, due to paraffin wax crystallization at low temperatures, the crude oil exhibits high viscosity, making it difficult to collect using simple solutions like sponges. Here, we report a wax-wetting sponge designed by conforming to the thermoresponsive microstructure of crude oil droplets. To address paraffin wax crystallization, we designed the sponge by coating a polyester polyurethane substrate with nanosilicon functionalized with paraffin-like octadecyl ligands. The wax-wetting sponge can adsorb oil droplets from wastewater between 5° and 40°C with 90 to 99% removal efficacy for 10 cycles. Also, upon rinsing with heptol, the adsorbed oil is released within seconds. The proposed approach of sponges designed to conform with the temperature-dependent microstructure of the crude oils could enable cold water technologies and improve circular economy metrics in the oil industry.
AU  - Cherukupally,P
AU  - Sun,W
AU  - Williams,DR
AU  - Ozin,GA
AU  - Bilton,AM
DO  - 10.1126/sciadv.abc7926
PY  - 2021///
SN  - 2375-2548
TI  - Wax-wetting sponges for oil droplets recovery from frigid waters
T2  - Science Advances
UR  - http://dx.doi.org/10.1126/sciadv.abc7926
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000628616300006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://advances.sciencemag.org/content/7/11/eabc7926
UR  - http://hdl.handle.net/10044/1/91093
VL  - 7
ER  -
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