Document Type

Article

Publication Date

1-1-2017

Publication Title

Asian Journal of Chemistry

Abstract

© 2017, Chemical Publishing Co. All rights reserved. Heterogeneous photocatalysis has proved to be a successful method for the degradation of water pollutants. In this work, the photocatalytic decolourization of acid orange 7 was performed by cobalt-doped titanium dioxide (Co-doped TiO2). The Co-doped TiO2 was synthesized and characterized using X-ray diffraction, scanning electron microscopy, energy diffraction spectroscopy, UV-visible reflective dispersion spectroscopy and adsorption of nitrogen gas. The acid orange 7 was prepared as a synthetic textile wastewater at three initial concentrations (24, 34 and 44 mg/L) with three photocatalyst loadings (0.025 g, 0.050, 0.1 g/100 mL acid orange 7). Results show a plateauing behaviour with the effect of photocatalyst concentration on removal of acid orange 7. As the concentration increased of acid orange 7, an ideal photocatalytic loading was found that outperformed higher concentrations in regards to removal of acid orange 7. As such it was concluded that high photocatalyst concentrations are not synonymous with efficient water treatment.

Comments

This project was carried out with support from the ClevelandState University Doctoral Dissertation Research Expense Awardand Fellowship Program (DDREAFP) Account No. 0010-1812-10and National Science Council of Taiwan for financially supportingthis research under Contract No. NSC 101-2918-I-259-005.

DOI

10.14233/ajchem.2017.20162

Version

Publisher's PDF

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Volume

29

Issue

1

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