【摘要】 以共沉淀氧化法制备一组铬掺杂的磁铁矿样品,对它们进行XRD分析,结果显示铬的掺杂不会让磁铁矿的晶体结构有明显变化,并且样品的纯度也较高。对它们进行热重与差重(TG-DSC)分析,数据表明铬能提高磁铁矿的热稳定性。降解实验在下列条件下进行:以茜素绿为目标降解物,以样品和双氧水为催化剂,结果表明铬的掺杂有利于磁铁矿对茜素绿的降解。更多还原

【Abstract】 The coprecipitation oxidation method was used to prepare a set of Cr- containing magnetite,which was analyzed by XRD. The result showed that Chromium adulteration will not cause significant changes in the structure of the magnetite and the purity of samples was higher. The TG- DSC was employed to detect the samples,the data indicated Chromium can prompt the thermostability of magnetite. The degradation experiment was conducted under the following conditions: alizarin green was used as degradation agent,the samples and H₂O₂ were served as catalyst. The result stated that chromium adulteration helped magnetite degrade alizarin green.更多还原