1. Wheat bran valorisation: Towards photocatalytic nanomaterials for benzyl alcohol photo-oxidation
- Author
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Juan Carlos Colmenares, Rafael Luque, Antonio A. Romero, Alfonso Yepez, Weiyi Ouyang, Jose M. Reina, Ewelina Kuna, and Alina M. Balu
- Subjects
Environmental Engineering ,02 engineering and technology ,Wheat bran ,Management, Monitoring, Policy and Law ,010402 general chemistry ,7. Clean energy ,01 natural sciences ,Catalysis ,Nanomaterials ,Benzaldehyde ,chemistry.chemical_compound ,X-Ray Diffraction ,X-ray photoelectron spectroscopy ,Organic chemistry ,Photocatalysis ,Waste Management and Disposal ,Benzyl Alcohols ,Triticum ,Titanium ,Photoelectron Spectroscopy ,Benzyl alcohol oxidation ,General Medicine ,021001 nanoscience & nanotechnology ,Waste valorization ,Refuse Disposal ,0104 chemical sciences ,chemistry ,Benzyl alcohol ,Yield (chemistry) ,Titanium dioxide ,Nanoparticles ,0210 nano-technology ,Nuclear chemistry - Abstract
In this work, we have successfully synthesized a set of titania photocatalytic nanocomposites by the incorporation of different TiO2 content on wheat bran residues. The obtained catalysts were characterized by different techniques including UVeVis spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Transmission Electron Microscopy (TEM) while their photocatalytic activity was investigated in the oxidation of benzyl alcohol under UV light irradiation. Benzaldehyde yields were ca. 20%, with conversion in the systems of ca. 33% of benzyl alcohol by using 10%Ti-Bran catalyst, as compared to 33% yield to the target product (quantitative conversion of benzyl alcohol) using commercial pure TiO2 (P-25). The photocatalytic activity results indicate that designed waste-derived nanomaterials with low TiO2 content can efficiently photocatalyze the conversion of benzyl alcohol with relative high selectivity towards benzaldehyde.
- Published
- 2017
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