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Separation Science and Technology Volume 56, 2021 - Issue 2
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Water Treatment

Magnetic Fe3O4-graphene oxide nanocomposite – synthesis and practical application for the heterogeneous photo-Fenton degradation of different dyes in water

Ana Maria Salgueiro Baptisttellaa Chemical Engineering Department, Federal University of Pernambuco, Recife, BrazilCorrespondence[email protected]
,
Caroline Maria Bezerra de Araujoa Chemical Engineering Department, Federal University of Pernambuco, Recife, BrazilORCID Iconhttps://orcid.org/0000-0002-5336-1390
ORCID Icon,
Maryne Patrícia da Silvaa Chemical Engineering Department, Federal University of Pernambuco, Recife, Brazil
,
Gabriel Filipe Oliveira do Nascimentoa Chemical Engineering Department, Federal University of Pernambuco, Recife, Brazil
,
Gabriel Rodrigues Bezerra da Costab Mechanical Engineering Department, Federal University of Pernambuco, Recife, Brazil
,
Bruna Figueiredo do Nascimentoa Chemical Engineering Department, Federal University of Pernambuco, Recife, Brazil
,
Marcos Gomes Ghislandic Engineering Campus, Federal Rural University of Pernambuco, Cabo de Santo Agostinho, Brazil
&
Maurício Alves da Motta Sobrinhoa Chemical Engineering Department, Federal University of Pernambuco, Recife, BrazilORCID Iconhttps://orcid.org/0000-0003-2638-9096
ORCID Icon show all
Pages 425-438 | Received 18 Sep 2019, Accepted 08 Jan 2020, Published online: 21 Jan 2020
 
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ABSTRACT

Characterization and test a magnetic graphene oxide (GO) nanocomposite (Fe3O4-GO) in the photo-degradation of Methylene Blue (MB), Reactive Black 5 (RB), and Acid Blue 80 (AB) dyes were investigated in this work. Measurements indicated that GO was decorated by Fe3O4. Kinetic tests showed that the process was more efficient in degrade MB – %Degradation MB>RB>AB; also in the regeneration and reuse of the photocatalyst. Regarding the phytotoxicity, all seeds germinated, although a decrease in the root length after the photodegradation was observed. In overall, Fe3O4-GO seems to be a promissory photocatalyst for the degradation of different textile dyes.

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