The Ti-KIT-1 sieve was obtained by a grafting method using tetrabutyl titanate as Ti source and KIT-1 as support. An amphiphilic Ti-KIT-1 sieve was prepared from Ti-KIT-1 modified with trimethylchlorosilane and characterized by XRD, DRS, FT-IR and nitrogen adsorption-desorption techniques. Experimental results show that the resultant amphiphilic Ti-KIT-1 sieve remains the original mesoporous structure with a smaller specific BET surface area and BJH volume of pores compared to the Ti-KIT-1 sieve. DRS and FT-IR indicate the existence of tetrahedral titanium (Ⅳ), which may act as active sites for epoxidation of olefin. The amphiphilicity of samples are measured through adsorption capacity for the vapour of water or toluene, acetone, n-hexane. The resultant Ti-KIT-1 sieve is amphiphilic due to the partial coverage of the external surface with the hydrophobic alkylsilane groups and the hydrophilicity of the rest of the surface.
LI Hui-Yun
,
LIU Yuan-Ying
,
WANG Shao-Mei
,
GUO Jin-Fu
. Preparation and Characterization of Amphiphilic Ti-grafted KIT-1[J]. Journal of Inorganic Materials, 2008
, 23(5)
: 981
-985
.
DOI: 10.3724/SP.J.1077.2008.00981
[1] Beck J S, Vartuli C, Roth W J, et al. J. Am. Chem. Soc., 1992, 114 (27): 10834--10843.
[2] 徐文革, 何静, 孙鹏, 等. 高等学校化学校报, 1999, 20 (9): 1429--1433.
[3] 李惠云, 孙渝, 乐英红, 等. 高等学校化学学报, 1999, 20 (2): 272--276.
[4] Ryoo R, Kim J M, Shin C H, et al. Stud. Surf. Sci. Catal., 1997, 105(Part A-C): 45--52.
[5] Liu Yu, Zhang Wenzhong, Thomas J. Pinnavaia. J. Am. Chem. Soc., 2000, 122 (36): 8791--8792.
[6] Li Defeng, Han Yu, Song Jiangwei, et al. Chem. Eur. J., 2004, 10 (23): 5911--5922.
[7] 李惠云, 华伟明, 王绍梅, 等. 应用化学, 2006, 23 (10): 1124--1128.
[8] 李惠云, 王绍梅, 刘立新, 等. 化学世界, 2006, 47 (9): 517--520.
[9] Zhao X S, Lu G Q, Hu X. Microporous and Mesoporous Materials, 2000, 41 (1-3): 37--47.
[10] Hiromi Yamashita, Kazuhiro Maekawa, et al. Applied Surface Science, 2004, 237 (1-4): 393--397.
[11] Yang Hengquan, Zhang Gaoyong, Hong Xinlin, et al. Microporous and Mesoporous Materials, 2004, 68 (1-3): 119--125.
[12] 周炜, 须沁华, 董家, 等. 化学学报, 2003, 61 (10): 1533--1536.
[13] Dutoit D C M, Schneider M, Baiker A. J. Catal., 1995, 153 (1): 165--176.
[14] Dusi M, Mallat T, Baiker A. Catal. Rev. Sci. Eng., 2000, 42 (1, 2): 213--278.
[15] Chen J, Li Q, Xu R, et al. Angew. Chem; Lnt. Ed. Engl, 1995, 34 (23-24): 2694--2696.
[16] Dudiey H, Williams lan Fleming 著, 王剑波, 施卫峰译. 有机化学中的光谱方法. 北京: 北京大学出版社, 2001. 42.
[17] 秦颖, 乐英红, 高滋. 高等学校化学学报, 1998, 19 (9): 1479--1483.
