RTW photodegradation experiments exhibited removal efficiencies of % for apparent color, and % for turbidity. Phytotoxicity assays using cucumber seeds showed low toxicity of the samples after photodegradation, which indicated that toxic compounds were fully mineralized. | Environmental Advances 4 2021 100064 Contents lists available at ScienceDirect Environmental Advances journal homepage locate envadv Photodegradation of Reactive Black 5 and raw textile wastewater by heterogeneous photo-Fenton reaction using amino-Fe3 O4 -functionalized graphene oxide as nanocatalyst Maryne Patrícia da Silva a Ana Caroline Alves de Souza a Lettícia Emely de Lima Ferreira a b Luiz Martins Pereira Neto c Bruna Figueiredo Nascimento a Caroline Maria Bezerra de Araújo a d Tiago José Marques Fraga a Maurício Alves da Motta Sobrinho a Marcos Gomes Ghislandi a e a Department of Chemical Engineering Federal University of Pernambuco UFPE 1235 Prof. Moraes Rego Av Cidade Universitária 50670-901 Recife PE Brazil b Center of Biosciences Federal University of Pernambuco UFPE Engineering Av. Cidade Universitária 50740-570 Recife PE Brazil c Department of Rural Technology Federal Rural University of Pernambuco UFRPE Dom Manuel de Medeiros St. W N Dois Irmãos 521171-900 Recife PE Brazil d Faculty of Engineering FEUP University of Porto Dr. Roberto Frias St. w n 4200-465 Porto Portugal e Engineering Campus UACSA Federal Rural University of Pernambuco UFRPE 300 Cento e sessenta e Três Av. Cabo de Santo Agostinho PE Brazil a r t i c l e i n f o a b s t r a c t Keywords Amino-Fe3 O4 -functionalized graphene oxide AmGO was synthesized and had its photocatalytic properties in- 2D nanomaterials vestigated in the degradation of Reactive Black 5 RB5 dye and raw textile wastewater RTW . Graphene oxide Functionalization was synthesized via modified Hummers method and functionalized with diethylenetriamine and FeCl3 to obtain Graphene oxide the AmGO. A 23 factorial design was carried out to optimize the best working conditions the most statistically Heterogeneous photo-Fenton significant effect was the AmGO dosage followed by the initial pH. Kinetics studies were performed and Chan Textile wastewater amp Chu model the most representative of the experimental .
