铁取代介孔磷铝分子筛的合成、表征及其催化性能

以水热晶化法合成了Fe取代介孔磷铝分子筛，并用XRD, FT-IR, N2吸附等对其进行了表征. 结果表明，合成的分子筛为缺乏长程有序的介孔结构，具有较高的比表面积. 在焙烧后的分子筛中，Fe3+离子主要以四配位的形式存在于骨架中. 该分子筛能有效催化氧化水溶液中苯酚，在反应温度60℃、苯酚起始浓度3 mmol/L、加入45 mmol/L H2O2、溶液起始pH值4.5的条件下，4 h后苯酚去除率达99.5%，COD去除率达87.9%，且催化剂性能稳定，反应过程中有极少量Fe3+离子流失.

Synthesis,Characterization and Catalytic Performance of Trivalent Fe-substituted Mesoporous Aluminophosphate Molecular Sieves

Fe-substituted aluminophosphate molecular sieves were prepared by hydrothermal crystallization and characterized with XRD,FT-IR,N2 adsorption,etc.The results showed that the samples were the typical mesoporous molecular sieves that were short of the long-range ordered crystal structure and had large surface area,which suggested that Fe3+ ion was successfully incorporated into the framework of molecular sieves and mainly existed in tetrahedral coordination after calcination.Fe-substituted aluminophosphate mo...