中孔分子筛由于具有孔径大、吸附能力强和热稳定性好等特点而引起了国内外研究者的极大关注［１，２］．近年来，有关ＭＣＭ－４８的合成、结构表征及应用研究的报道甚少［３，４］．ＭＣＭ－４８分子筛因无酸性而催化活性较弱，因此，向其骨架中引入Ｔｉ、Ｚｒ、Ｃｒ和Ｃ... Mesoporous molecular sieves due to its large pore size, strong adsorption capacity and thermal stability and other characteristics have attracted great attention of researchers at home and abroad [1,2]. In recent years, there are few reports on the synthesis, structure characterization and application of MCM-48 [3,4]. MCM-48 molecular sieve due to the lack of acidity and catalytic activity is weak, therefore, into the framework of the introduction of Ti, Zr, Cr and C ...