Studies On The Synthesis And Apply Of Mesoporous Molecular Sieve FSM-16

With high specific surface area, ordered pore structure, facilely tailorable pore size, and fine chemical stability and thermostability, Mesoporous molecular sieve FSM-16 has wide application prospects in many fields, such as catalyst chemistry, adsorption and separation.In this thesis, Kanemite was preparated before the synthesis of mesoporous molecular sieve FSM-16, the absorb data of kanemite calcinated 18h at 700℃is tiptob through the adsorption of iodine and methylene blue. The mesoporous molecular sieve FSM-16,with good structure and performance was systhesized through hydrothermal treatment in alkaline medium by using cetyltrimethylammonium bromide as template. The key factors in the systhesis of mesoporous molecular FSM-16 slicitted that mesoporous molecular FSM-16, with good crystallization on degree and regular pore channels was systhesized when the molar ratio of the reaction mixture 1CTMA:0.2 Na2Si2O5 , after milling at 70℃for 3 hours, adjust pH to 8.5, reacted 3 hours, then through drying and calcining,FSM-16 with best quality could be gotten. The materials were characterized by XRD, FT-IT and SEM etc. It turned out the sample possessed ordered hexagonal mesoporous channels and narrow pore distribution between 2~3nm.Fe was intermingled and loaded in FSM-16. The results were showed: the higher ordered mesoporous structure was also showed by Fe-FSM-16,and the aperture of the molecular sieve was largen with the quantity of Fe oin.Using the FSM-16 molecular sieve with different Fe ion systhesized at the most excellent condition as catalyzer to disposal the waste water contained hydroxybenzene. It indicated that the disposal phenol effect is best when the molar ratio is 1Fe: 75Si.