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Molecules 2018, 23(1), 224; https://doi.org/10.3390/molecules23010224

A Semi-Pilot Photocatalytic Rotating Reactor (RFR) with Supported TiO2/Ag Catalysts for Water Treatment

Department of Chemical Sciences, Universidad Autónoma del Carmen, Calle 56 No. 4, Avenida Concordia, Ciudad del Carmen, Campeche 24180, Mexico
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Received: 21 October 2017 / Revised: 15 December 2017 / Accepted: 30 December 2017 / Published: 20 January 2018
(This article belongs to the Section Photochemistry)
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Abstract

A four stage semi-pilot scale RFR reactor with ceramic disks as support for TiO2 modified with silver particles was developed for the removal of organic pollutants. The design presented in this article is an adaptation of the rotating biological reactors (RBR) and its coupling with the modified catalyst provides additional advantages to designs where a catalyst in suspension is used. The optimal parameter of rotation was 54 rpm and the submerged surface of the disks offer a total contact area of 387 M2. The modified solid showed a decrease in the value of its bandgap compared to commercial titanium. The system has a semi-automatic operation with a maximum reaction time of 50 h. Photo-activity tests show high conversion rates at low concentrations. The results conform to the Langmuir heterogeneous catalysis model. View Full-Text
Keywords: rotating photocatalytic reactor; TiO2/Ag catalysts; water treatment rotating photocatalytic reactor; TiO2/Ag catalysts; water treatment
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Montalvo-Romero, C.; Aguilar-Ucán, C.; Alcocer-Dela hoz, R.; Ramirez-Elias, M.; Cordova-Quiroz, V. A Semi-Pilot Photocatalytic Rotating Reactor (RFR) with Supported TiO2/Ag Catalysts for Water Treatment. Molecules 2018, 23, 224.

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