Na Wang, Chenxi Zhan, Junzhuo Li, Dan Liu, Junjie Xiong, Geshan Zhang, Yin-an Ming
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引用次数: 0
摘要
为了去除甲硝唑，采用浸渍-煅烧法制备了负载在颗粒活性炭上的铁氧化物（FeOx-GAC）。催化剂的理化性质通过电子显微镜（SEM）、透射电子显微镜（TEM）、傅立叶变换红外光谱（FTIR）、X 射线衍射（XRD）和 X 射线光电子能谱（XPS）进行了表征。结果表明，FeOx-GAC 具有多孔结构，不同价态的铁氧化物平滑地附着在活性炭上。对 FeOx-GAC 去除甲硝唑的催化活性进行了评估，结果表明该催化剂具有很高的催化效率。此外，还通过改变臭氧和催化剂的剂量以及溶液的 pH 值优化了催化臭氧去除甲硝唑的效果。
Efficient degradation of metronidazole in wastewater by FeOx/GAC catalytic ozonation
To remove the metronidazole, the iron oxides loaded on granular activated carbon (FeOx-GAC) were prepared by the impregnation–calcination approach. The physicochemical properties of the catalysts were characterized by electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results show that FeOx-GAC has a porous structure, in which the iron oxides with a variety of valence states are smoothly attached on the activated carbon. The catalytic activity of FeOx-GAC was evaluated for metronidazole removal, exhibiting great catalytic efficiency of the catalyst. Besides, the catalytic ozonation of metronidazole was optimized by varying the dose of ozone and catalyst, as well as the pH of the solution.
期刊介绍：
Transition Metal Chemistry is an international journal designed to deal with all aspects of the subject embodied in the title: the preparation of transition metal-based molecular compounds of all kinds (including complexes of the Group 12 elements), their structural, physical, kinetic, catalytic and biological properties, their use in chemical synthesis as well as their application in the widest context, their role in naturally occurring systems etc.
Manuscripts submitted to the journal should be of broad appeal to the readership and for this reason, papers which are confined to more specialised studies such as the measurement of solution phase equilibria or thermal decomposition studies, or papers which include extensive material on f-block elements, or papers dealing with non-molecular materials, will not normally be considered for publication. Work describing new ligands or coordination geometries must provide sufficient evidence for the confident assignment of structural formulae; this will usually take the form of one or more X-ray crystal structures.
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