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Article

Advantages of the Incorporation of Luffa-Based Activated Carbon to Titania for Improving the Removal of Methylene Blue from Aqueous Solution

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Laboratoire de Chimie Physique des Interfaces des Matériaux Appliquées à l’Environnement, Faculté de Technologie, Université Blida 1, B.P. 270 Route de Soumaa, Blida 09000, Algeria
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Departamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, Spain
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Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venezia Mestre, Italy
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MCMA Group, Department of Inorganic Chemistry, Materials Institute (IUMA), University of Alicante, Ap. 99, 03080 Alicante, Spain
*
Authors to whom correspondence should be addressed.
Academic Editor: Leonarda Francesca Liotta
Appl. Sci. 2021, 11(16), 7607; https://doi.org/10.3390/app11167607
Received: 10 July 2021 / Revised: 13 August 2021 / Accepted: 16 August 2021 / Published: 19 August 2021
This research aims to study the possible improvement of methylene blue (MB) removal from aqueous solution by hybrid adsorbent-catalysts (AdsCats) prepared through the incorporation of activated carbon derived from Luffa cylindrica fibers (LAC) to TiO2 photocatalysts. LAC with a specific surface area of 1170 m2/g was prepared by chemical activation with phosphoric acid at 500 °C. TiO2/LAC composites with 70 and 90 wt.% Degussa P25 titania content were prepared. The materials were characterized by N2 physical adsorption, XRD, FTIR, and XPS. The AdsCats displayed a very good dispersion of TiO2 over LAC, a surface area of close to 200 or 400 m2/g, depending on the composition, and high crystallinity, showing the presence of anatase and rutile phases. MB removal was studied in two different scenarios: under UV-light after reaching adsorption equilibrium, and under UV-light once the liquid effluent and the AdsCats were in contact. The MB removal by LAC has proved to be very efficient, highlighting the predominant role of adsorption over photodegradation. The prepared AdsCats have also been compared with their components. The results showed that TiLAC hybrids have superior photocatalytic performance than P25, showing TiLAC-7/3 90% MB removal with respect to the initial concentration just after 30 min of UV light irradiation for both studied scenarios. View Full-Text
Keywords: luffa activated carbon; biomass; TiO2; photodegradation; organic pollutants; MB luffa activated carbon; biomass; TiO2; photodegradation; organic pollutants; MB
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MDPI and ACS Style

Boumad, S.; Infantes-Molina, A.; Barroso-Martín, I.; Moretti, E.; Rodríguez-Castellón, E.; Román-Martínez, M.d.C.; Lillo-Ródenas, M.Á.; Bouchenafa-Saib, N. Advantages of the Incorporation of Luffa-Based Activated Carbon to Titania for Improving the Removal of Methylene Blue from Aqueous Solution. Appl. Sci. 2021, 11, 7607. https://doi.org/10.3390/app11167607

AMA Style

Boumad S, Infantes-Molina A, Barroso-Martín I, Moretti E, Rodríguez-Castellón E, Román-Martínez MdC, Lillo-Ródenas MÁ, Bouchenafa-Saib N. Advantages of the Incorporation of Luffa-Based Activated Carbon to Titania for Improving the Removal of Methylene Blue from Aqueous Solution. Applied Sciences. 2021; 11(16):7607. https://doi.org/10.3390/app11167607

Chicago/Turabian Style

Boumad, Souad, Antonia Infantes-Molina, Isabel Barroso-Martín, Elisa Moretti, Enrique Rodríguez-Castellón, María del Carmen Román-Martínez, María Ángeles Lillo-Ródenas, and Naima Bouchenafa-Saib. 2021. "Advantages of the Incorporation of Luffa-Based Activated Carbon to Titania for Improving the Removal of Methylene Blue from Aqueous Solution" Applied Sciences 11, no. 16: 7607. https://doi.org/10.3390/app11167607

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