Esbenshade, Jennifer LynneCardoso, Juliano Carvalho [UNESP]Zanoni, Maria Valnice Boldrin [UNESP]2014-05-202014-05-202010-08-15Journal of Photochemistry and Photobiology A-chemistry. Lausanne: Elsevier B.V. Sa, v. 214, n. 2-3, p. 257-263, 2010.1010-6030http://hdl.handle.net/11449/25846An alternative method to remove sunscreen compounds 4-methylbenzylidene camphor (4-MBC), 3-benzophenone (BENZO) and 4-aminobenzoic acid (PABA) from swimming pool water is proposed based on photoeletrocatalytic oxidation using self-organized TiO2 nanotubular array electrodes irradiated by UV light. The best condition for the mineralization of these compounds was found to be 0.1 mol L-1 Na2SO4 at pH 9 with +1.5 V potential applied to the electrode. This leads to 100% removal of the 4-MBC, BENZO and PABA compounds in tap water, monitored by spectrophotometric and HPLC measurements and a maximum of 98.7%, 90.8% and 88.4% TOC reduction after a 3-h period of treatment. The method was successfully applied to sunscreen degradation in swimming pool water, reaching 100% degradation and 89.5-98.7% TOC reduction, indicating that the method could be an excellent alternative method to produce truly clean water. (C) 2010 Elsevier B.V. All rights reserved.257-263engSunscreens degradationPhotoelectrocatalytic processTiO2 nanotubular arrays4-Methylbenzylidene camphor3-Benzophenone3,4-Aminobenzoic acidResumo10.1016/j.jphotochem.2010.07.005WOS:000282077200018Acesso restrito0000-0002-2296-1393