Munikrishnappa, C and Kumar, S and Shivakumara, S and Mohan Rao, G and Munichandraiah, N (2019) The TiO 2 -graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants. In: Journal of Science: Advanced Materials and Devices, 4 (1). pp. 80-88.
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Abstract
TiO 2 -Graphene Oxide-Hemin (TiO 2 /GO/Hemin) ternary composite hybrid material was prepared by the sol-gel method and used as a heterogeneous catalyst for the photocatalytic degradation of organic contaminants. The catalytic activity of GO-TiO 2 -Hemin was evaluated by the degradation of Rhodamine B (RhB) under the UV-visible light irradiation and in the presence of hydrogen peroxide. The ternary composite of (TiO 2 /GO/Hemin) shows an excellent activity over a wide pH range from 3 to 11 and also a stable catalytic activity after five recycles. The increase in the efficiency of TiO 2 -GO-Hemin-UV processes is attributed to the Fe 2+ ions produced from the cleavage of stable iron complexes, which participate in the continuous cyclic process for the generation of hydroxyl radicals resulting from the heterogeneous photocatalytic reactions and the adsorption power of GO.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of Science: Advanced Materials and Devices |
| Publisher: | Elsevier B.V. |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | The TiO 2 -graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
| Date Deposited: | 28 Oct 2022 05:40 |
| Last Modified: | 28 Oct 2022 05:40 |
| URI: | https://eprints.iisc.ac.in/id/eprint/77716 |
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