Functional structured polymer coatings for water condensation
Development and optimisation of micro-patterned surfaces that can collect water by condensation from humid air.
Maintaining a stable supply of drinking water in Australia is a continual challenge. In 2006 the Australian mainland was gripped by “the worst drought in 1000 years”, with the once-ferocious Murray River receiving only 5% of its average inflow. Existing technical solutions to water shortages include the building of dam infrastructures, desalination plants, and waste-water recycling plants, methods which are energy intensive, result in water wastage through evaporation, or are potentially environmentally damaging.
Harvesting water directly from the atmosphere is an increasingly popular alternative, which could provide an energy-effective and localised method of water capture, especially useful in remote communities where the local humidity is high.
In this PhD project, we aim to optimise the potential for water collection of micro-patterned surfaces obtained by dewetting of bilayers of thin polymer films.1, 2 We will investigate the physico-chemical principles which underpin water condensation and collection, and ultimately design new water capture devices that can help us provide sustainable sources of water.
1. Thickett, S. C.; Harris, A.; Neto, C., Langmuir 2010, 26, (20), 15989-15999. DOI: 10.1021/la103078k
2. Thickett, S. C.; Neto, C.; Harris, A. T., Adv. Mat. 2011, 23, (32), 3718-3722. DOI: 10.1002/adma.201100290
The project primarily involves performing experiments suing a wide range of surface modification techniques, and surface characterisation techniques such as atomic force microscopy (AFM), contact angle goniometry, ellipsometry, and grazing angle FTIR. The modification of solid surfaces using advanced surface coatings will be performed both in the lab and through external collaborations. Interested students should source their own scholarship, as detailed on the University’s website.
Want to find out more?
Physical chemistry, surface and materials science, interfaces, Atomic force microscopy, nanotechnology, polymer films, nanostructured coatings, superhydrophobic surfaces, micro-patterning, water condensation, wettability.
The opportunity ID for this research opportunity is: 1563
Other opportunities with Dr Chiara Neto