Manganese oxide octahedral molecular sieve (OMS-2) and a series of OMS-2 doped with Co, Cu, and Ce were prepared via a solvent-free method, and tested in heterogeneous activation of peroxymonosulfate (PMS) for diclofenac (DCF) degradation in aqueous solutions. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), N2adsorption/desorption isotherms, Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and X-ray photoelectron spectroscopy (XPS) were used to characterize the properties of those materials. It was found that (Co+Ce)-OMS-2 seemed to be most efficient and had the best adsorption capacity, which may due to most abundant lattice oxygen and more macropore than other materials caused by cerium ions enter into the channel. Results from XPS suggested that the highly catalytic efficiency possible involved the activation of PMS to sulfate and hydroxyl radical meditated by the redox pair of Mn(IV)/Mn(III) and Co(III)/Co(II) in catalysts.

通过无溶剂方法制备了锰氧化物八面体分子筛（OMS-2）和一系列掺杂Co，Cu和Ce的OMS-2，并测试了过氧单硫酸盐（PMS）的异质活化对双氯芬酸（DCF）的降解作用在水溶液中。X射线衍射（XRD），傅立叶变换红外光谱（FT-IR），扫描电子显微镜（SEM），N2吸附/解吸等温线，电感耦合等离子体发射光谱（ICP-OES）和X射线光电子能谱（XPS）被用来表征那些材料的特性。发现（Co + Ce）-OMS-2似乎是最有效的，并且具有最佳的吸附能力，这可能是由于铈离子进入该通道所引起的晶格氧最多，且比其他材料所致的大孔更大。