The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants

TiO2-Graphene Oxide-Hemin (TiO2/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-TiO2-Hemin was evaluated by the degradation of Rhodamine B (RhB...

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Main Authors: Munikrishnappa, C., Kumar, Surender, Shivakumara, S., Rao, G. Mohan, Munichandraiah, N.
Format: Article
Language:English
Published: Elsevier 2019
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Online Access:http://repository.vnu.edu.vn/handle/VNU_123/67937
https://doi.org/10.1016/j.jsamd.2018.12.003
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Institution: Vietnam National University, Hanoi
Language: English
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spelling oai:112.137.131.14:VNU_123-679372019-10-24T08:18:07Z The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants Munikrishnappa, C. Kumar, Surender Shivakumara, S. Rao, G. Mohan Munichandraiah, N. Photocatalysis Advance oxidation processes (AOPs) Metal ligand charge transfer processes (MLCTs) Rhodamine B TiO2-Graphene Oxide-Hemin (TiO2/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-TiO2-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 (TiO2/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 TiO2-GO-Hemin-UV processes is attributed to the Fe2þ 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 2019-10-24T08:18:07Z 2019-10-24T08:18:07Z 2019 Article Munikrishnappa, C., et al. (2019). The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants. Journal of Science: Advanced Materials and Devices 4 (2019) 80-88 2468-2179 http://repository.vnu.edu.vn/handle/VNU_123/67937 https://doi.org/10.1016/j.jsamd.2018.12.003 en Journal of Science: Advanced Materials and Devices; application/pdf Elsevier
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic Photocatalysis
Advance oxidation processes (AOPs)
Metal ligand charge transfer processes
(MLCTs)
Rhodamine B
spellingShingle Photocatalysis
Advance oxidation processes (AOPs)
Metal ligand charge transfer processes
(MLCTs)
Rhodamine B
Munikrishnappa, C.
Kumar, Surender
Shivakumara, S.
Rao, G. Mohan
Munichandraiah, N.
The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
description TiO2-Graphene Oxide-Hemin (TiO2/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-TiO2-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 (TiO2/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 TiO2-GO-Hemin-UV processes is attributed to the Fe2þ 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
format Article
author Munikrishnappa, C.
Kumar, Surender
Shivakumara, S.
Rao, G. Mohan
Munichandraiah, N.
author_facet Munikrishnappa, C.
Kumar, Surender
Shivakumara, S.
Rao, G. Mohan
Munichandraiah, N.
author_sort Munikrishnappa, C.
title The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
title_short The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
title_full The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
title_fullStr The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
title_full_unstemmed The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
title_sort tio2-graphene oxide-hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
publisher Elsevier
publishDate 2019
url http://repository.vnu.edu.vn/handle/VNU_123/67937
https://doi.org/10.1016/j.jsamd.2018.12.003
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