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Iron(III) phthalocyanine supported on a spongin scaffold as an advanced photocatalyst in a highly efficient removal process of halophenols and bisphenol A
Journal of Hazardous Materials ( IF 13.6 ) Pub Date : 2017-12-23 , DOI: 10.1016/j.jhazmat.2017.12.055
Małgorzata Norman , Sonia Żółtowska-Aksamitowska , Agnieszka Zgoła-Grześkowiak , Hermann Ehrlich , Teofil Jesionowski

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 (13C 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 hour. 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.



中文翻译:

海绵状支架上负载的酞菁铁(III)作为先进的光催化剂,可高效去除卤代酚和双酚A

这项研究首次研究了新型铁酞菁/海绵铁杂化材料在各种工艺条件下(过氧化氢和紫外线辐射下)对苯酚,氯酚,氟酚和双酚A(BPA)的降解。非均相催化剂,酞菁铁/海绵铁(SFe),是通过吸附工艺生产的。所获得的产品已通过多种光谱技术进行了研究-X射线光电子能谱(XPS),能量色散X射线能谱(EDS),傅里叶变换红外光谱(FTIR)和碳13核磁共振(13C NMR)–以及元素分析和热分析。研究证实了染料在生物聚合物上的稳定固定。结果表明,在不同的实验条件下,苯酚和BPA的降解遵循伪二级动力学。发现SFe,H 2 O 2和UV的协同作用可显着提高去除效率,并在短短的1小时内完全去除污染物。通过高效液相色谱/质谱(HPLC-MS)鉴定了反应产物,并提出了可能的降解途径,其特征是包括裂解C–C键和氧化的一系列步骤。

更新日期:2017-12-27
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