Title: Photocatalytic degradation of organic dye using Fe_xO_y -TiO₂ and powered by solar cells

Authors: Rokia Youcef; Amel Benhadji; Haithem Bel Hadjltaief; Sameh Ben Ameur; Mania Terki; Mourad Benzina; Mourad Taleb Ahmed

Addresses: Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering, USTHB, 16111, Algiers, Algeria ' Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering, USTHB, 16111, Algiers, Algeria ' Laboratory of Eau, Energie et Environnement, National Engineering School of Sfax, University of Sfax, B.P1173.W, 3038, Sfax, Tunisia ' Laboratory of Eau, Energie et Environnement, National Engineering School of Sfax, University of Sfax, B.P1173.W, 3038, Sfax, Tunisia ' Laboratory of Eau, Energie et Environnement, National Engineering School of Sfax, University of Sfax, B.P1173.W, 3038, Sfax, Tunisia ' Laboratory of Eau, Energie et Environnement, National Engineering School of Sfax, University of Sfax, B.P1173.W, 3038, Sfax, Tunisia ' Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering, USTHB, 16111, Algiers, Algeria

Abstract: The main objective of this work is to evaluate the performance of novel semiconductor Fe_xO_y-TiO₂ under visible lamp and the use of the photovoltaic panel as a direct energy source. The results showed that 91.81% occurred by using lamp of 20 W under the condition of [Fe_xO_y-TiO₂] = 0.5g/L, [BBF] = 20 mg/L, [H₂SO₄] = 0.1 M, pH = 3.8, P = 18 W and three hours of reaction. It was also found that the presence of PO₄^3- and S₂O₈^2- (3 g/L) increase the rate of degradation to 97.72% in about 1.5 h. The second part of this work was dedicated to choose a lamp with the best intensity of irradiation. The maximum of current intensity generated by solar cells reaching the values of 3,400 mA at 11.08 h and 2,260 mA at 13.83 h by using lamps of 20 W and 75 W respectively.

Keywords: solar cells; Fe_xO_y; TiO₂; photocatalysis; illumination; brilliant blue.

DOI: 10.1504/IJEWM.2023.130544

International Journal of Environment and Waste Management, 2023 Vol.31 No.2, pp.206 - 230

Received: 20 Oct 2019
Accepted: 02 Jul 2020
Published online: 27 Apr 2023 *

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