Abstract
Environmental aging of Al(OH)3·TiO2degrades the protective Al(OH)3coating and alters the activity of the material.
Highlights
Titania-based engineered nanomaterial (ENM) are widely used in water and air treatment, clean energy production, and the fabrication of selfcleaning surfaces.[2]
As Scanning Electron Microscope (SEM)-Energy Dispersive Spectroscope (EDS) is only semi-quantitative, an Anderson-Darling (AD) examination of the distribution and a Wilcoxon signed rank test were used to interpret the statistical significance of differences due to aging from 45 minutes to 14 days.[28]
The Wilcoxon signed rank test was used to determine whether the median values of Al/Ti (%) distribution changed significantly when samples were subjected to 45 min – 14 days in SPW
Summary
Titania-based ENM are widely used in water and air treatment, clean energy production, and the fabrication of selfcleaning surfaces.[2] Titanium dioxide (TiO2) is a semi-conductor that produces an electrochemical photolysis of water under UV irradiation,[3] which in process creates intermediates including hydroxide, superoxide and singlet oxygen reactive oxygen species (ROS)[4,5,6,7] In biological systems, ROS may cause extensive cell damage and lead to cell death.[8,9,10,11,12,13,14]. The particle surface is coated with a material such as AlIJOH)[3] to shield the skin from ROS.[5,15] Following dermal application of TiO2-containing sunscreen lotions, ENM may enter the aquatic environment.[16,17,18] Widespread use has contributed to
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