引用本文:
秦颖, 乐英红, 高滋. 丝光沸石的疏水化研究[J]. 应用化学,
1997, 14(3): 9-11.
Citation: Qin Ying, Yue Yinghong, Gao Zi. On the Hydrophobicity of Mordenite[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 9-11.
Citation: Qin Ying, Yue Yinghong, Gao Zi. On the Hydrophobicity of Mordenite[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 9-11.
丝光沸石的疏水化研究
English
On the Hydrophobicity of Mordenite
Abstract:
Dealuminated mordenites with Si/Al ratio of 15~112 have been prepared. The amount of dealumination defects in the zeolites was measured by IR method. Experimental results on the thermal stability and hydrophobicity of the zeolites showed that the majority of the terminal silanol groups formed during dealumination still remains as hydrophilic center. Additional treatment with steam or (NH4)2SiF6 solution,which transforms the hydrophilic surface silanol groups into hydrophobic-Si-O-Si-bonds, markedly increases the hydrophobicity of the dealuminated zeolite.
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Key words:
- mordenite
- / dealumination
- / thermal stability
- / hydrophobicity
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