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Home / Science of Advanced Materials, Volume 4, Numbers 5-6

Nanostructured-[CeO2, La2O3, C]/TiO2 Catalysts for Lignin Photodegradation

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The present paper is focused on the photodegradation study of lignin, dissolved in a water medium under three catalytic systems: CeO2 nanotubes/TiO2, La2O3 nanotubes/TiO2 and C nanotubes/TiO2. Photocatalytic reactions were conducted in a micro reactor batch system under UV irradiation. CeO2, La2O3 and TiO2 were synthesized by means of the sol–gel method followed by post hydrothermal synthesis of CeO2 and La2O3 to obtain the nanotubular structures, while C nanotubes were from Alfa Aesar. The catalysts were analyzed by means of XRD, SEM, BET, EDS, TEM. In order to optimize the yield reaction it was performed one experimental design. According to the results nanostructured CeO2, La2O3, C enhances the catalytic activity of TiO2, reaching in some cases degradation near to 60% in 25 minutes.

Keywords: CERIUM OXIDE; LANTHANUM OXIDE; NANOTUBES; PHOTOCATALYST; UV RADIATION

Document Type: Research Article

Publication date: 01 May 2012

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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