A new material NaY/MCM-48 composite molecular sieve was prepared with NaY-zeolite as the inner core. The synthesized composite sample was characterized by XRD, SEM, TEM, IR, N 2 adsorption/desorption method and TPD. In addition, it’s hydrothermal stability was studied. The results show that the composite material has the properties of both mesoporous MCM-48 and the microporous NaY. The composite molecular sieve has thicker pore wall, larger pore size, stronger acid strength and higher hydrothermal stability than pure mesoporous molecular sieve MCM-48. The DFT pore diameter is mainly located at 1.2nm and 3.2nm.
LI Yong-Xin
,
ZHANG Yan-Hua
,
XUE Bing
. Synthesis and Characterization of NaY/MCM-48 Composite Molecular Sieve[J]. Journal of Inorganic Materials, 2006
, 21(5)
: 1209
-1216
.
DOI: 10.3724/SP.J.1077.2006.01209
[1] Beck J S, Vartuli J C, Roth W J, et al. J. Am. Chem. Soc., 1992, 114(27): 10834--10843.
[2] 申宝剑, 黄海燕, 徐春明, 等. 化学学报. 2003, 61(12): 1904--1910.
[3] Kresge C T, Leonowicz M E, Roth W J, et al. Nature, 1992, 359 (6397): 710--712.
[4] Ryoo R, Jun J. J. Phys. Chem. B, 1997, 101(3): 317--320.
[5] Xiao F S, Han Y, Yu Y, et al. J. Am. Chem. Soc., 2002, 124(6): 888--889.
[6] Huang L M, Guo W P, Deng P, et al. J. Phys. Chem. B, 2000, 104(13): 2817--2823.
[7] Kloetstra K R, Zandbergen H W, Jansen J C, et al. Microporous Mater., 1996, 6(5--6): 287--293.
[8] Karlsson A, Stocker M, Schmidt R. Microporous Mesoporous Mater., 1999, 27(2--3): 181--192.
[9] Poladi R H, Landry C C. J. Solid. State Chem., 2002, 167(2): 363--369.
[10] 李玉平, 李香兰, 张瑛, 等. 燃料化学学报, 2002, 30(2): 162--166.
[11] 黄海燕, 申宝剑, 徐春明, 等. 化学学报, 2002, 60(7): 1350--1352.
[12] 郭万平, 黄立民, 陈海鹰, 等. 高等学校化学学报, 1999, 20(3): 356--358.
[13] Guo W P, Huang L M, Deng P. Microporous Mesoporous Mater., 2001, 44--45: 427--434.
[14] 张晔, 吴东, 孙玉罕, 等. 燃料化学学报. 2001, 29: 28--29.
[15] Liu Y, Zhang W Z, Pinnavaia T J. J. Am. Chem. Soc., 2001, 123(21): 5014--5021.
[16] 万克树, 刘茜, 张存满(WAN Ke-shu, et al). 无机材料学报
(Journal of Inorganic Materials), 2003, 18(5): 1097--1101.
[17] 王亚军, 唐颐, 王星东, 等. 高等学校化学学报, 2000, 21(7): 1013--1015.
[18] 王姗, 窦志荣, 李玉平 ,等. 太原理工大学学报, 2005, 36(3): 273--275.
[19] Matsumoto A, Tsutsumi K, Schumacher K, et al. Langmuir, 2002, 18: 4014--4019.
