Fe,V取代SBA-15分子筛的合成及其对苯羟基化反应的催化  

Synthesis of Iron and Vanadium Incorporated SBA-15 Molecular Sieves and Its Catalysis for Hydroxylation of Benzene

作　　者：顾颖颖[1] 李疆[1] 赵新华[1] 王莉萍[1] 单永奎[1] 

机构地区：[1]华东师范大学化学系,上海200062

出　　处：《化学学报》2007年第21期2423-2427,共5页Acta Chimica Sinica

基　　金：国家自然科学基金(No.20273021);上海市科委重点项目(Nos.05JC14070;0552nm042)资助项目.

摘　　要：用水热法合成了铁、钒双金属取代的SBA-15分子筛(FVS).通过XRD,TEM,N2吸附-脱附等技术表征,证实了该材料具有高度有序的二维六方结构.ESR、紫外可见光谱结果表明铁和钒以高度分散的四配位状态存在于分子筛的骨架中.在以分子氧为氧化剂的苯羟基化反应中铁、钒双金属取代的SBA-15分子筛表现出很高的催化活性,苯酚的产率达到了14.5%.Bimetallic iron and vanadium incorporated SBA-15 molecular sieves （FVS） has been hydrothermally synthesized. XRD, TEM and N2 adsorption-desorption results show that the FVS catalyst has a 2D P6mm hexagonal structure. ESR and UV-vis spectroscopic investigations suggested that the tetrahedrally coordinated iron and vanadium species incorporated within the silica framework. The FVS catalyst exhibited high activity toward hydroxylation of benzene with molecular oxygen, over which the yield of phenol reaches 14.5%.

关 键 词：SBA-15 介孔分子筛 双金属取代 苯 羟基化 

分 类 号：O643.3[理学—物理化学]