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The structural, photophysical, and chemical properties were investigated using XRD, Raman spectroscopy, XPS, GSDR, and LIL. XRD and Raman results confirmed the presence of TiO<jats:sub>2<\/jats:sub> and CdS with intensities dependent on the ratio Cd\/Ti. The presence of CdSO<jats:sub>4<\/jats:sub> was detected by XPS at the surface of all TiO<jats:sub>2<\/jats:sub>-CdS composites. The relative amount of sulphate was dependent on the CdS loading. Luminescence time-resolved spectra clearly proved the existence of an excitation transfer process from CdS to TiO<jats:sub>2<\/jats:sub> through the luminescence emission from TiO<jats:sub>2<\/jats:sub> after excitation of CdS at <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:msub><mml:mrow><mml:mi>\u03bb<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi mathvariant=\"normal\">e<\/mml:mi><mml:mi mathvariant=\"normal\">x<\/mml:mi><mml:mi mathvariant=\"normal\">c<\/mml:mi><\/mml:mrow><\/mml:msub><mml:mo>=<\/mml:mo><mml:mn fontstyle=\"italic\">410<\/mml:mn><mml:mo>\u2009<\/mml:mo><\/mml:math>nm, where no direct excitation of TiO<jats:sub>2<\/jats:sub> occurs. Photodegradation of a series of aromatic carboxylic acids\u2014benzoic, salicylic, 4-bromobenzoic, 3-phenylpropionic, and veratric acids\u2014showed a great enhancement in the photocatalytic efficiency of the TiO<jats:sub>2<\/jats:sub>-CdS composites, which is due, mainly, to the effect of the charge carriers\u2019 increased lifetime. In addition, it was shown that the oxidation of CdS to CdSO<jats:sub>4<\/jats:sub> did not result in the deactivation of the photocatalytic properties and even contributed to enhance the degradation efficiency.<\/jats:p>","DOI":"10.1155\/2016\/6581691","type":"journal-article","created":{"date-parts":[[2016,11,6]],"date-time":"2016-11-06T16:01:31Z","timestamp":1478448091000},"page":"1-11","source":"Crossref","is-referenced-by-count":22,"title":["TiO<sub>2<\/sub>-CdS Nanocomposites: Effect of CdS Oxidation on the Photocatalytic Activity"],"prefix":"10.1155","volume":"2016","author":[{"given":"A.","family":"Hamdi","sequence":"first","affiliation":[{"name":"Laboratoire de Chimie Inorganique, Facult\u00e9 des Sciences de Sfax, Universit\u00e9 de Sfax, BP 1171, 3000 Sfax, Tunisia"}]},{"given":"D. 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