Self-cleaning properties

Abstract A colloidal solution of titanium dioxide (TiO ) nanoparticles was prepared by the solvothermal method and dip-coated onto a polypropylene fabric with TMOS binder. The prepared TiO particles, colloidal solution and the coated fabrics were characterized by X-ray diffraction, SEM and TEM. The results showed that the TiO particles prepared by the solvothermal method were composed of anatase which uniformly coated the snbstrate. Photocatalysis induced bactericidal properties of coated fabrics were tested by measuring the viability of Escherichia coli. It was fonnd that solvothermally prepared TiO coatings have the ability to kill E. coli. This nniqne property of TiO makes it an ideal candidate in producing self-sterilizing protective masks and in providing bactericidal and self-cleaning properties to a variety of snrfaces. 

In case of the yield (e.g., mass) per subunit, a negative deviation from the mean was followed by a positive deviation, showing the self-cleaning property of the mixer (Figs. 8-9). This test is not needed if the system is... 

Self-cleaning Properties of Ti02-coated Substrates... 

Furstner R, Barthlott W, Neinhuis C, Walzel P (2005) Wetting and self-cleaning properties of artificial superhydrophobic surfaces. Langmuir 21 956-961... 

For the particular case where the self-cleaning properties of Ti02-coated plates have to be evaluated, a photoreactor allowing a comparison of several plates under simulated solar irradiation has been designed (70). 

B. Turkiewicz, M. Rucka, G. Pozniak, and E. Zboinska. Biofunctional membranes from poly(2,6-dimethyl-l,4-phenylene oxide) with self-cleaning properties. Enzyme Microb. Tech., 39(4) 527-530, August2006. 

It has been demonstrated in recent years that the nanotechnology can be applied to textiles to enhance various properties, especially in functional coatings, such as fabric softness, durability and breathability, water repellency, fire retardency, antimicrobial properties, anticrease properties, UV protection, self-cleaning properties and like in fiber, yarn and fabrics [131, 134-136]. Undyable polypropylene fiber can be made dyeable by... 

The lotus plant grows in aquatic environments. To thrive in such an environment the surface of a lotus leaf is highly water repellent. Scientists call surfaces with this property superhydrophobic. The superhydrophobic character of the lotus leaf not only allows it to float on water but also causes any water that falls on the leaf to bead up and roll off. The water drops collect dirt as they roll off, keeping the leaf clean, even in the muddy ponds and lakes where lotus plants tend to grow. Because of its self-cleaning properties, the lotus plant is considered a symbol of purity in many Eastern cultures. 

Moafi HF, Shojaie AF, Zanjanchi MA. Photocatalytic self-cleaning properties of ceUu-losic fibres modified by nano-sized zinc oxide. Thin Solid Films 2011 519(ll) 3641-6. 

Qi, K., Xin, J. H., Daoud, W. A. and Mak, C. L. 2007. Functionalizing polyester fiber with a self-cleaning property using Anatase Ti02 and low-temperature plasma treatment. IntemationalJoumal of Applied Ceramic Technology, 4, 554-63. 

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