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Morjène L, Tasbihi M, Schwarze M, Schomäcker R, Aloulou F, Seffen M. A composite of clay, cement, and wood as natural support material for the immobilization of commercial titania (P25, P90, PC500, C-TiO 2) towards photocatalytic phenol degradation. Water Sci Technol 2020; 81:1882-1893. [PMID: 32666943 DOI: 10.2166/wst.2020.244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Different types of commercial titania (P25, P90, PC500, and C-TiO2) were immobilized as single or mixed photocatalyst onto the surface of a natural support material made of cement, clay, and wood fibers. The successful immobilization was studied by different techniques showing a composite material with the mechanical properties of the support material and the photocatalytic behavior of the immobilized titania. The supported photocatalyst showed high mechanical stability and was applied to the photocatalytic degradation of phenol as a model pollutant under UV light irradiation. As the most active photocatalytic material, a mixture PC500 and P90 (comp-PC500/P90) was identified with an apparent pseudo first-order kinetic rate constant (kapp) of 0.010 min-1 at a degradation efficiency of 100%. The catalyst was used several times and showed minor loss in activity during four runs due to degradation intermediates adsorbed to the surface, shown by a color change from white to yellow.
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Affiliation(s)
- L Morjène
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail: ; Laboratory of Energy and Materials, High School of Sciences and Technology of Hammam Sousse, University of Sousse, Rue Lamine Abassi 4011, Hammam Sousse, Tunisia
| | - M Tasbihi
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail:
| | - M Schwarze
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail:
| | - R Schomäcker
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail:
| | - F Aloulou
- Laboratory of Energy and Materials, High School of Sciences and Technology of Hammam Sousse, University of Sousse, Rue Lamine Abassi 4011, Hammam Sousse, Tunisia
| | - M Seffen
- Laboratory of Energy and Materials, High School of Sciences and Technology of Hammam Sousse, University of Sousse, Rue Lamine Abassi 4011, Hammam Sousse, Tunisia
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