Stretford, United Kingdom (PressExposure) July 22, 2009 -- An environment-friendly coating of nano particles that will be doing the job of cleaning and disinfecting bathrooms is developed by Australian scientists at the Particles and Catalysts Research Group, University of New South Wales. This coating will largely reduce the use of toxic cleaning and disinfecting liquids.
Earlier self-cleaning materials were largely used for outdoor cleaning. This is because of the fact that these materials contained titanium dioxide which needs ultraviolet light with a wavelength of less than 380 nanometres to be activated. However, the recently developed coating has modified titanium dioxide particles that can be activated by light of higher wave length such as bathroom light [http://www.atlasbathrooms.co.uk/default.aspx?Category=7]. Apart from titanium dioxide, the coating material contains cations of iron or vanadium and anions of oxygen, nitrogen or carbon. These ingredients enhance the cleaning efficiency of the coating and enable it for indoor use too.
This coating is highly oxidizing in nature and prevents fungus to grow on surface. Hydrophobic property of this coating will ensure that water slides away and carries all dirt. This coating can be a one time purchase and will have several advantages in environmental terms.
However, some researchers are highly critical regarding this hi-tech material. The major concern among them is recycling of this coating. Friends of the Earth spokesperson Mary Taylor is of the view that "We would have to consider, for example, whether the material could be recycled or disposed of safely, and how much more energy went into production of the raw materials and its manufacture."
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