期刊
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
卷 6, 期 2, 页码 175-178出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1008973619801
关键词
titanium dioxide; dicarboxylic acid; Langmuir; IRFT-DRIFT
The photodegradation processes using semi-conductor like TiO2 as a catalyst, provide new methods for waste water treatment. In this method the step of adsorption of organic compounds on the semi-conductor surface could have a prominent influence. In this work we describe the results of the study of the dicarboxylic acids adsorption on TiO2 (P25) in aqueous phase. The Langmuir model gives a good representation of the adsorption of the studied organic diacids. The maximum adsorption capacities are close to 7.10(-5) mol/g for the four studied diacids. The diffuse reflectance infrared spectroscopy (IRFT-DRIFT mode) of loaded TiO2 enables to demonstrate the formation of a dicarboxylate film on the semi-conductor surface.
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