A Novel Catalytic Process for Degradation of Bisphenol A in Aqueous Solutions Using Fe Supported on Alginate/Carboxymethylcellulose

This work aimed to synthesize new heterogeneous iron-based catalysts supported on biopolymers (alginate (Alg), carboxymethylcellulose (CMC), xanthan gum (GX) and chitosan (Qui)) and their mixtures—and their mixtures—to evaluate their degradation Bisphenol A (BPA) in aqueous solutions. The Alg-Fe, Qu...

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Bibliographic Details
Published inCatalysis letters Vol. 151; no. 5; pp. 1477 - 1487
Main Authors da Silva Bezerra, Diego, França, Rodrigo José, da Costa Marques, Mônica Regina
Format Journal Article
LanguageEnglish
Published New York Springer US 01.05.2021
Springer
Springer Nature B.V
Subjects
Alginates
Aqueous solutions
Biopolymers
Bisphenol A
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Chemistry
Chemistry and Materials Science
Chitosan
Degradation
High performance liquid chromatography
Hydrogen peroxide
Industrial Chemistry/Chemical Engineering
Iron
Leaching
Organometallic Chemistry
Oxidation
Phenols
Physical Chemistry
Polysaccharides
Reaction time
Xanthan
Advanced oxidation processes
POP
Heterogeneous Fenton
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Summary:This work aimed to synthesize new heterogeneous iron-based catalysts supported on biopolymers (alginate (Alg), carboxymethylcellulose (CMC), xanthan gum (GX) and chitosan (Qui)) and their mixtures—and their mixtures—to evaluate their degradation Bisphenol A (BPA) in aqueous solutions. The Alg-Fe, QuiGa-Fe and CMC-Fe, CMCGX-Fe, AlgCMC-Fe, AlgGX-Fe catalysts were prepared and characterized by SEM, FTIR and FAAS. For the degradation of BPA was evaluated and AlgCMC-Fe was considered the best catalyst for having high catalytic activity and less leaching of iron ions in the reaction medium. Then, the kinetics of BPA degradation by Fenton oxidation process were investigated varying: H 2 O 2 concentration, AlgCMC-Fe content, pH, reaction time and initial BPA concentrations. The degradation of BPA was monitored by HPLC–DAD and the results showed that AlgCMC-Fe were able to promote total degradation of BPA in aqueous solutions a (2.00 mg L −1 BPA) at a pH close to neutral, with a recycling capacity of up to three times with the same efficiency. The pseudo-second-order was the most appropriate model to describe the kinetic mechanism. Graphic Abstract
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-020-03403-9