title: Reactive Black 5 dye degradation using filters of smuggled cigarette modified with Fe3.
abstract: This study presents an attempt to solve two serious environmental problems: the generation of toxic effluents and solid waste disposal. The work proposes recycling cigarette filters with the purpose of degrading reactive dyes, which are used in the textile industry. Filters of smuggled cigarettes were recycled through Fe3+immobilization on their surface. The material obtained was characterized through Fourier transform infrared spectroscopy (FTIR), atomic absorption spectroscopy (AAS), scanning electron microscopy-energy-dispersive spectroscopy (SEM-EDS), and ultraviolet-visible spectroscopy (UV-vis). The factorial design revealed that the most suitable conditions for the degradation of Reactive Black 5 dye were obtained by using 1 g of material at pH 3.0 in a 100 mg L-1hydrogen peroxide solution. The material showed excellent performance in the Reactive Black 5 dye degradation process; in 60 min, 99.09 % dye was removed. At pH 7.0, the dye degradation was 72.67 %, indicating that the material prepared can be used at pH values greater than 3.0 without the occurrence of hydrated Fe3+oxide precipitation. Furthermore, the material showed no loss of catalytic activity after three degradation studies.
authors.affiliation: Departamento de Química, Universidade Estadual de Ponta Grossa, 84030-900, Ponta Grossa, PR, Brazil.
authors.forename: Letícia Polli
authors.initials: LP
authors.lastname: Glugoski
authors.affiliation: Departamento de Química, Universidade Estadual de Ponta Grossa, 84030-900, Ponta Grossa, PR, Brazil.
authors.forename: Paloma
authors.initials: P
authors.lastname: de Jesus Cubas
authors.affiliation: Departamento de Química, Universidade Estadual de Ponta Grossa, 84030-900, Ponta Grossa, PR, Brazil. sergiofujiwara@gmail.com.
authors.forename: Sérgio Toshio
authors.initials: ST
authors.lastname: Fujiwara
mesh_terms: D005290:Ferric Compounds / Q000737:chemistry; D005374:Filtration / Q000379:methods*; D007220:Industrial Waste; D009282:Naphthalenesulfonates / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D018508:Water Purification / Q000379:methods*
chemical_list: D005290:Ferric Compounds; D007220:Industrial Waste; D009282:Naphthalenesulfonates; D014874:Water Pollutants, Chemical; C000499:ferric oxide; C063421:Remazol black B
keywords: Advanced oxidation processes; Dye degradation; Factorial design; Filters of smuggled cigarettes; Immobilized Fe3+; Photo-Fenton reactions