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Fe(II)-Anchored Cotton Fabric for Heterogeneous Fenton Degradation of Rhodamine B Dye
Yuhui Yang,Hongbin Chen,Ruquan Zhang,Jingjing Huang,Zhikui Bai,Shili Xiao 한국섬유공학회 2022 Fibers and polymers Vol.23 No.10
The ferric ions sludge produced during pollutants degradation was an obstacle for large scale application of Fentonoxidation technology. Herein, we reported a facile method using 2,2,6,6-tetramethylpiperidine-1-oxygen radical (TEMPO)-oxidized cotton fabric as a substrate for anchoring Fe(II) ions to produce Fe(II)-anchored cotton fabric. The formation ofFe(II)-anchored cotton fabric was confirmed using EDS analysis and FTIR measurement. Bath experiments indicated thatFe(II)-anchored cotton fabric could Fenton oxidize rhodamine B (RhB) dye in a high efficient rate (95.9 %) within 60 minwithout second pollution. Fe(II)-anchored cotton could be reused without any physical/chemical treatment and itsdecolorization efficiency was retained at 89.9 % even after the third cycle. Moreover, the decolorization behavior of Fe(II)-anchored cotton fabric for the RhB solution was affected by H2O2 dosage, Fe(II) ion content, and inorganic salts. Kineticstudy indicated that the RhB decolorization process fits a pseudo-first order well and the sorption isotherm assessmentrevealed that the reactive sorption of RhB dye on Fe(II)-anchored cotton fabric fits the Freundlich model.