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Materials 2015, 8(6), 3633-3647; doi:10.3390/ma8063633

Photocatalytic Membrane Reactor for the Removal of C.I. Disperse Red 73

1
Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa (INTEXTER), Universitat Politècnica de Catalunya-BarcelonaTech (UPC). C/Colom 15, Terrassa 08222, Spain
2
Institut Européen des Membranes (IEM), UMR Université Montpellier 2 Place E. Bataillon, Montpellier F-34095, France
*
Author to whom correspondence should be addressed.
Academic Editor: Harold Freeman
Received: 7 April 2015 / Revised: 15 May 2015 / Accepted: 11 June 2015 / Published: 18 June 2015
(This article belongs to the Special Issue Developments in Organic Dyes and Pigments)
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Abstract

After the dyeing process, part of the dyes used to color textile materials are not fixed into the substrate and are discharged into wastewater as residual dyes. In this study, a heterogeneous photocatalytic process combined with microfiltration has been investigated for the removal of C.I. Disperse Red 73 from synthetic textile effluents. The titanium dioxide (TiO2) Aeroxide P25 was selected as photocatalyst. The photocatalytic treatment achieved between 60% and 90% of dye degradation and up to 98% chemical oxygen demand (COD) removal. The influence of different parameters on photocatalytic degradation was studied: pH, initial photocatalyst loading, and dye concentration. The best conditions for dye degradation were pH 4, an initial dye concentration of 50 mg·L−1, and a TiO2 loading of 2 g·L1. The photocatalytic membrane treatment provided a high quality permeate, which can be reused. View Full-Text
Keywords: photocatalytic membrane reactor; titanium dioxide; C.I. Disperse Red 73; UV light; polysulfone membrane; microfiltration photocatalytic membrane reactor; titanium dioxide; C.I. Disperse Red 73; UV light; polysulfone membrane; microfiltration
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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MDPI and ACS Style

Buscio, V.; Brosillon, S.; Mendret, J.; Crespi, M.; Gutiérrez-Bouzán, C. Photocatalytic Membrane Reactor for the Removal of C.I. Disperse Red 73. Materials 2015, 8, 3633-3647.

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