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Mesoporous molecular sieves AlMCM-41 were synthesized by static hydrothermal crystallization using cetyltrimethylammonium bromide as template,water glass as silica source and pseudoboehmite as aluminum source.The XRD results showed that the prepared AlMCM-41 mesoporous molecular sieves had high relative crystallinity and long-range order.The relative crystallinity was greater than 27%after calcination at 900oC for 2 hours and was still greater than 14%after ageing in steam at 800oC for 2 hours.The results indicated that both thermal and hydrothermal stabilities of the mesoporous molecular sieves AlMCM-41 were good.
Mesoporous molecular sieves AlMCM-41 were synthesized by static hydrothermal crystallization using cetyltrimethylammonium bromide as template, water glass as silica source and pseudoboehmite as aluminum source. XRD results showed that the prepared AlMCM-41 mesoporous molecular sieves had high relative crystallinity and long-range order. relative crystallinity was greater than 27% after calcination at 900 ° C for 2 hours and was still more than 14% after aging in steam at 800 ° C for 2 hours. The results indicated that both both thermal and hydrothermal stabilities of the mesoporous molecular sieves AlMCM- 41 were good.