Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 347, Issue -, Pages 78-88Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2017.12.055
Keywords
Hippospongia communis; Spongin; Advanced oxidation process; Halphenol and bisphenol A removal; Photodegradation kinetics
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Funding
- Poznan University of Technology [03/32/DS-MK/0710]
- German Research Foundation (DFG) [HE 394-3]
- Kruger Research School, Biohydrometallurgical Center for Strategic Elements (BHMZ) at TU Bergakademie Freiberg
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This study investigated for the first time the degradation of phenol, chlorophenol, fluorophenol and bisphenol A (BPA) by the novel iron phthalocyanine/spongin hybrid material under various process conditions: hydrogen peroxide and UV irradiation. The heterogeneous catalyst, iron phthalocyanine/spongin (SFe), was produced by an adsorption process. The product obtained was investigated by a variety of spectroscopic techniques - X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and carbon-13 nuclear magnetic resonance (C-13 NMR) - as well as elemental and thermal analysis. The study confirmed the stable immobilization of the dye on the biopolymer. The results demonstrate that the degradation of phenols and BPA followed pseudo-second-order kinetics under different experimental conditions. The synergy of SFe, H2O2 and UV was found to produce a significant increase in the removal efficiency and resulted in complete removal of contaminants in a short time of 1 h. The reaction products were identified by high-performance liquid chromatography/mass spectrometry (HPLC-MS) and possible degradation pathways were proposed, featuring a series of steps including cleavage of C-C bonds and oxidation. (C) 2017 Elsevier B.V. All rights reserved.
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