Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water

In recent years, there has been a growing concern about some substances in the aquatic environment such as methylene blue dye (MB) and 17α-ethynylestradiol (EE2) hormone, mainly from waste textile and pharmaceutical industries, respectively. This waste, which is not effectively treated, generates la...

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Principais autores: Ferreira, T. L. B., Garcia, Laurênia Martins Pereira, Gurgel, G. H. M., Nascimento, Rubens Maribondo do, Godinho Junior, Mario, Rodrigues, Murillo Henrique de Matos, Delmonte, Maurício Roberto Bomio, Motta, Fabiana Villela da
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Idioma:English
Publicado em: Springer
Assuntos:
Methylene blue
Alpha-ethynylestradiol
Endereço do item:https://repositorio.ufrn.br/handle/123456789/44775
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spelling ri-123456789-447752021-11-04T19:06:20Z Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water Ferreira, T. L. B. Garcia, Laurênia Martins Pereira Gurgel, G. H. M. Nascimento, Rubens Maribondo do Godinho Junior, Mario Rodrigues, Murillo Henrique de Matos Delmonte, Maurício Roberto Bomio Motta, Fabiana Villela da Methylene blue Alpha-ethynylestradiol In recent years, there has been a growing concern about some substances in the aquatic environment such as methylene blue dye (MB) and 17α-ethynylestradiol (EE2) hormone, mainly from waste textile and pharmaceutical industries, respectively. This waste, which is not effectively treated, generates large amounts of contaminated effluents. Textile industries, which use dyes mainly in their dyeing and finishing processes, generate a lot of effluent contamination by dyes. The 17α-ethynylestradiol hormone which is used in different contraceptive pills and in hormone replacement therapy, is the main substance found in the aquatic environment because of its high resistance to biodegradation. It is known that conventional water treatment processes, which involve the steps of coagulation, flocculation and sedimentation among others, have been reported to be ineffective in the removal of dyes and hormones. The heterogeneous photocatalysis has attracted great interest from many research groups around the world due to its potential application as a pollutant degradation method. For this purpose, the present work evaluated the performance of MnO2/In2O3 thin films in the degradation process of the blue methylene and 17α-ethynylestradiol in aqueous solutions. The degradation processes were monitored by UV–Vis spectroscopy and HPLC chromatography. From these analyzes, the concentration of the solutions was evaluated and it was possible to infer that the MnO2/ In2O3 thin films significantly promoted a degradation of 89% of 17α-ethynylestradiol, however, the degradation of the methylene blue was not efficient 2021-11-04T19:06:18Z 2021-11-04T19:06:18Z 2018-05-23 article FERREIRA, T. L. B.; GARCIA, L. M. P.; GURGEL, G. H. M.; NASCIMENTO, R. M.; GODINHO, M. J.; RODRIGUES, M. H. M.; BOMIO, M. R. D.; MOTTA, F. V.. Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water. Journal of Materials Science: Materials in Electronics, [S.L.], v. 29, n. 14, p. 12278-12287, 23 maio 2018. Disponível em: https://link.springer.com/article/10.1007%2Fs10854-018-9341-4. Acesso em: 19 mar. 2021. http://dx.doi.org/10.1007/s10854-018-9341-4. 1573-482X 0957-4522 https://repositorio.ufrn.br/handle/123456789/44775 10.1007/s10854-018-9341-4 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Springer
institution Repositório Institucional
collection RI - UFRN
language English
topic Methylene blue
Alpha-ethynylestradiol
spellingShingle Methylene blue
Alpha-ethynylestradiol
Ferreira, T. L. B.
Garcia, Laurênia Martins Pereira
Gurgel, G. H. M.
Nascimento, Rubens Maribondo do
Godinho Junior, Mario
Rodrigues, Murillo Henrique de Matos
Delmonte, Maurício Roberto Bomio
Motta, Fabiana Villela da
Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water
description In recent years, there has been a growing concern about some substances in the aquatic environment such as methylene blue dye (MB) and 17α-ethynylestradiol (EE2) hormone, mainly from waste textile and pharmaceutical industries, respectively. This waste, which is not effectively treated, generates large amounts of contaminated effluents. Textile industries, which use dyes mainly in their dyeing and finishing processes, generate a lot of effluent contamination by dyes. The 17α-ethynylestradiol hormone which is used in different contraceptive pills and in hormone replacement therapy, is the main substance found in the aquatic environment because of its high resistance to biodegradation. It is known that conventional water treatment processes, which involve the steps of coagulation, flocculation and sedimentation among others, have been reported to be ineffective in the removal of dyes and hormones. The heterogeneous photocatalysis has attracted great interest from many research groups around the world due to its potential application as a pollutant degradation method. For this purpose, the present work evaluated the performance of MnO2/In2O3 thin films in the degradation process of the blue methylene and 17α-ethynylestradiol in aqueous solutions. The degradation processes were monitored by UV–Vis spectroscopy and HPLC chromatography. From these analyzes, the concentration of the solutions was evaluated and it was possible to infer that the MnO2/ In2O3 thin films significantly promoted a degradation of 89% of 17α-ethynylestradiol, however, the degradation of the methylene blue was not efficient
format article
author Ferreira, T. L. B.
Garcia, Laurênia Martins Pereira
Gurgel, G. H. M.
Nascimento, Rubens Maribondo do
Godinho Junior, Mario
Rodrigues, Murillo Henrique de Matos
Delmonte, Maurício Roberto Bomio
Motta, Fabiana Villela da
author_facet Ferreira, T. L. B.
Garcia, Laurênia Martins Pereira
Gurgel, G. H. M.
Nascimento, Rubens Maribondo do
Godinho Junior, Mario
Rodrigues, Murillo Henrique de Matos
Delmonte, Maurício Roberto Bomio
Motta, Fabiana Villela da
author_sort Ferreira, T. L. B.
title Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water
title_short Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water
title_full Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water
title_fullStr Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water
title_full_unstemmed Effects of MnO2/In2O3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water
title_sort effects of mno2/in2o3 thin films on photocatalytic degradation 17 alpha-ethynylestradiol and methylene blue in water
publisher Springer
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/44775
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