Barzegar, M. H., Sabzehmeidani, M. M., Ghaedi, M., Avargani, V. M., Moradi, Z., Roy, V. A.L. and Heidari, H. (2021) S-scheme heterojunction g-C3N4/TiO2 with enhanced photocatalytic activity for degradation of a binary mixture of cationic dyes using solar parabolic trough reactor. Chemical Engineering Research and Design, 174, pp. 307-318. (doi: 10.1016/j.cherd.2021.08.015)
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Abstract
Developing photocatalytic systems by larger design to achieve degradation of dye pollutants by using solar light is highly desirable. Present work is devoted to the synthesis of step-scheme (S-scheme) g-C3N4/TiO2 heterojunction which subsequently employed for simultaneous degradation of a binary mixture of Methylene blue (MB) and Rhodamine B (RhB) solution in parabolic trough collectors (PTC) as continuous flow loop photoreactor. The as-prepared g-C3N4/TiO2 was analyzed by various techniques such as FE-SEM, EDS, XRD, FT-IR, BET, elements mapping and DRS. The composite central design (CCD) was applied to express mathematical relationships among variables such as process time, catalyst mass and initial concentrations of MB and RhB in the degradation process. The photocatalytic activity of the as-prepared composite is higher than pure TiO2 and g-C3N4 that is attributed to the positive synergetic effect of S-scheme between g-C3N4 and TiO2 nanostructure. Under solar irradiation in PTC, g-C3N4/TiO2 was able to degrade about 94.92 and 93.07% of binary mixture MB and RhB, respectively.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Heidari, Professor Hadi and Vellaisamy, Professor Roy |
Authors: | Barzegar, M. H., Sabzehmeidani, M. M., Ghaedi, M., Avargani, V. M., Moradi, Z., Roy, V. A.L., and Heidari, H. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | Chemical Engineering Research and Design |
Publisher: | Elsevier |
ISSN: | 0263-8762 |
ISSN (Online): | 1744-3563 |
Published Online: | 16 August 2021 |
Copyright Holders: | Copyright © 2021 The Authors |
First Published: | First published in Chemical Engineering Research and Design 174: 307-318 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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