铁-镍磁性复合材料的制备及催化臭氧化应用  

Preparation of Iron-nickle Composite Magnetic Materials and Their Application in Catalytic Ozonation

作　　者：吴丽娜[1] 董玉明[1] 蒋平平[1] 

机构地区：[1]江南大学化学与材料工程学院食品胶体与生物技术教育部重点实验室,江苏无锡214122

出　　处：《广东化工》2013年第11期8-9,共2页Guangdong Chemical Industry

基　　金：国家自然科学基金(20903048)

摘　　要：催化材料在催化臭氧化水处理中显示了优越的性能,然而由于许多材料难以分离限制了其实际应用,兼具磁性与催化性能的高效材料日益受到关注、成为研究的热点。文章基于铁-镍氧化物,设计合成了一种复合型磁性材料。实验表明,镍组分的引入显著提高了催化性能,同时保持了良好的磁分离效果和活性稳定性,显示了广阔的应用前景。通过磷酸根的影响,确定了催化活性中心为路易斯酸。Catalytic materials reveal efficient performance in catalytic ozonation for water treatment. However, many of catalysts are difficult to be separated from water, which limited their practical application. Recently, the development of novel magnetic materials with catalytic activity attracts more and more attention and becomes research hot. Based on iron-nickle oxide, a composite magnetic material was designed and prepared in the paper. The results indicated that the catalytic activity was greatly increased through the introduction of nickel. Furthermore, the composite material is promising in application for its good separability and stability. By the influence of PO43＂, Lewis acid sites were confirmed as reactive centers for catalytic ozonation

关 键 词：磁性材料 催化臭氧化 活性中心 

分 类 号：O614.813[理学—无机化学]