(1. 江蘇大學(xué) 化學(xué)化工學(xué)院，鎮(zhèn)江 212013；
2. 齊齊哈爾大學(xué) 化學(xué)化工學(xué)院，齊齊哈爾 161006)
摘 要: 以十六烷基三甲基溴化銨(CTAB)為模板劑，硅酸鈉、氯化鎳、氯化鈷和氯化銅為原料，通過微波輻射法合成純硅MCM-41和Ni(Co、Cu)MCM-41介孔分子篩。采用X射線衍射、透射電子顯微鏡、Fourier變換紅外光譜和比表面積孔徑分析等測試手段對所合成的介孔分子篩進(jìn)行表征。考察了分別將雜原子Ni、Co和Cu引入MCM-41介孔分子篩對其介孔有序性、比表面積及孔徑大小的影響。結(jié)果表明：在微波條件下可以合成出純硅MCM-41和摻雜Ni(Co、Cu)MCM-41介孔分子篩，樣品經(jīng)550 ℃焙燒后模板劑被有效去除，合成樣品的介孔結(jié)構(gòu)沒有被破壞；雜原子Ni(或Co、Cu)引入純硅MCM-41介孔分子篩后，其比表面積和平均孔徑均增大，且介孔有序性變好。
關(guān)鍵字: 介孔分子篩；微波合成；表征；比表面積
（1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013,
2. School of Chemistry and Chemical Engineering, Qiqihaer University, Qiqihaer 161006, China）
Abstract:Silica MCM-41 and Ni (Co or Cu) MCM-41 mesoporous molecular sieve were synthesized by microwave irradiation method using cetyltrimethyl ammonium bromide as template and sodium silicate, nickel chloride, cobalt chloride and cooper chloride as raw materials, respectively. The synthesized samples were characterized by X-ray diffractometry, transmission electron microscopy, specific surface area analysis, Fourier transform infrared spectroscopy and N2 physical adsorption. After hetero-atom (Ni, Co or Cu) was introduced into silica MCM-41 mesoporous molecular sieve, the effects of hetero-atom (Ni, Co or Cu) on its specific surface area, mesoporous ordering and pore size were also investigated. The results show that silica MCM-41 and Ni (Co or Cu) MCM-41 mesoporous molecular sieves are synthesized. The template is effectively removed from the samples after calcinations at 550 J, and the pore structure of the synthesized samples is not damaged. After hetero-atom Ni (Co or Cu) is introduced into silica MCM-41 mesoporous molecular sieve, its specific surface area and average pore size increase and mesoporous order becomes good.
Key words: mesoporous molecular sieve; microwave synthesis; characterization; specific surface area
