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以介孔材料SBA-15为模版,采用硬模版法制备了有序介孔氧化铁,并对其催化过氧化氢(H2O2)降解水中有机污染物效能与机理进行了研究。采用X射线衍射(XRD)、透射电子显微镜(TEM)、氮气吸附-脱附、X射线荧光(XRF)、X射线光电子能谱(XPS)等分析手段对介孔氧化铁进行表征。以诺氟沙星为目标物,利用介孔氧化铁催化H2O2降解水中有机污染物效能,研究了溶液初始p H、H2O2初始投加量和催化剂初始投加量对反应的影响。通过叔丁醇(TBA)、对苯醌(p-BQ)的抑制实验对反应机理进行了讨论。
Mesoporous material SBA-15 was used as a template to prepare ordered mesoporous iron oxide by hard template method. The effects of hydrogen peroxide (H2O2) on degradation of organic pollutants in water were studied. The mesoporous iron oxide was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), nitrogen adsorption-desorption, X-ray fluorescence (XRF) and X-ray photoelectron spectroscopy (XPS) Using norfloxacin as the target, mesoporous iron oxide was used to catalyze H2O2 degradation of organic pollutants in water. The effects of initial pH of p H, initial dosage of H2O2 and initial dosage of catalyst on the reaction were studied. The reaction mechanism was discussed by the inhibition experiments of t-butanol (p-BQ) and t-butanol (TBA).