Abstract
Near monodisperse spherical particles composed of a nonporous silica core covered by a Ti-doped hexagonally arranged mesoporous silica shell, Ti-SCMS, as well as spherical submicron-size particles of Ti-MCM-41, have been synthesized for the first time and characterized by elemental analysis, N2 adsorption, XRD, TEM and DR-UV spectroscopy. The mesoporous Ti,Si-shell has a thickness of about 45 nm and incorporates isolated Ti centers in tetrahedral coordination. Catalytic properties of Ti-SCMS and Ti-MCM-41 have been studied in selective oxidation of three representative bulky organic substrates, 2,3,6-trimethylphenol, methyl phenyl sulfide and caryophyllene, with aqueous H2O2 in MeCN medium. Ti-SCMS appeared to be more active and selective in the H2O2-based selective oxidation reactions compared to Ti-MCM-41, thus demonstrating an advantage of conducting a catalytic process in a thin mesoporous Ti,Si-shell.
Graphical Abstract
Near monodisperse spherical silica particles with a solid inert core covered by a well-ordered mesoporous shell, containing site-isolated Ti centers, have been synthesized, characterised and found to be highly active in selective oxidations with H2O2.
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Stöber W, Fink A, Bohn E (1968) J Coll Int Sci 26:62
Kresge CT, Leonowicz EM, Roth WJ, Vartuli JC, Beck JS (1992) Nature 359:710
Ying JY, Mehnert CP, Wong MS (1999) Angew Chem Int Ed 38:56
Stein A, Melde BJ, Shroden RC (2000) Adv Mater 12:1403
Sayari A, Hamoudi S (2001) Chem Mater 13:3151
Lin H-P, Mou C-Y (2002) Acc Chem Res 35:927
Gallis KW, Araujo JT, Duff KJ, Moore JG, Landry CC (1999) Adv Mater 11:1452
Boissiere C, Kummel M, Persin M, Larbot A, Prouzet E (2001) Adv Funct Mater 11:139
Joannopoulos ID, Villeneuve PR, Fun S (1997) Nature 386:143
Buranda T, Jones GM, Nolan JP, Keij J, Lopez GP, Sklar LA (1999) J Phys Chem B 103:3399
Yoon SB, Kim JY, Kim JH, Park YJ, Yoon KR, Park SK, Yu JS (2007) J Mater Chem 17:1758
Thomas JM, Raja R (2006) Topics Catal 40:3
Corma A, Navarro MT, Perez-Pariente J (1994) J Chem Soc Chem Commun 147
Corma A (1997) Chem Rev 97:2373
Tanev PT, Chibwe M, Pinnnavaia TJ (1994) Nature 368:321
Shan Z, Jansen JC, Marchese L, Maschmeyer T (2001) Micropor Mesopor Mater 48:181
Kholdeeva OA, Mel’gunov MS, Shmakov AN, Trukhan NN, Kriventsov VV, Zaikovskii VI, Romannikov VN, Malyshev ME (2004) Catal Today 91–92:205
Gontier S, Tuel A (1995) J Catal 157:124
Blasco T, Corma A, Navarro MT, Peres Pariente J (1995) J Catal 156:65
Koyano KA, Tatsumi T (1997) Micropor Mater 10:259
Laha SC, Kumar R (2002) Micropor Mesopor Mater 53:163
Zhang WH, Lu JQ, Han B, Li MJ, Xiu JH, Ying PL, Li C (2002) Chem Mater 14:3413
Kholdeeva OA, Derevyankin AY, Shmakov AN, Trukhan NN, Paukshtis EA, Tuel A, Romannikov VN (2000) J Mol Catal A 158:417
Trukhan NN, Romannikov VN, Paukshtis EA, Shmakov AN, Kholdeeva OA (2001) J Catal 202:110
Buchel G, Grun M, Unger KK, Matsumoto A, Tsutsumi K (1998) Supramol Sci 5:253
Fenelonov VB, Romannikov VN, Derevyankin AYu (1999) Micropor Mesopor Mater 28:57
Kruck M, Jarroniec M, Sayari A (1997) Langmuir 13:6267
Selvam P, Bhatia SK, Sonwane CG (2001) Ind Eng Chem Res 40:3237
Marchese L, Gianotti E, Delarocca V, Maschmeyer T, Rey F, Coluccia S, Thomas JM (1999) Phys Chem Chem Phys 1:585
Ratnasamy P, Srinivas D, Knozinger H (2004) Adv Catal 48:1
Cai Q, Luo ZS, Pang WQ, Fan YW, Chen XH, Cui FZ (2001) Chem Mater 13:201
Nga JBS, Vasiliev PO, Bergström L (2008) Micropor Mesopor Mater 112:589
Bonrath W, Eggersdorfer M, Netscher T (2007) Catal Today 121:45
Rules and Regulations: title 21—Food and drugs, food additives, synthetic flavoring substances and adjuvants. Food Drug Administration Washington, DC, USA, 95(38) (1973) 12913
Acknowledgment
The work was partially supported by the Russian Foundation for Basic Research (grants 06-03-08102 and 05-03-34760).
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Barmatova, M.V., Ivanchikova, I.D., Kholdeeva, O.A. et al. Titanium-Doped Solid Core-Mesoporous Shell Silica Particles: Synthesis and Catalytic Properties in Selective Oxidation Reactions. Catal Lett 127, 75–82 (2009). https://doi.org/10.1007/s10562-008-9632-0
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DOI: https://doi.org/10.1007/s10562-008-9632-0