期刊
RSC ADVANCES
卷 7, 期 6, 页码 3249-3256出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra23959e
关键词
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资金
- Army Research Laboratory [5284201]
- National Science Foundation [NSF-CBET 1264599, 1351384]
- Maryland NanoCenter
- AIMLab
- University of Maryland Energy Research Center (UMERC)
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1264599] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1351384] Funding Source: National Science Foundation
A titanosilicate pillared MFI zeolite (abbreviated as Si/Ti-PMFI) has been synthesized by sequential infiltration of a mixed tetraethyl orthosilicate (TEOS) and tetrabutyl orthotitanate (TBOT) solvent into and hydrolysis of the TEOS/TBOT solvent entrapped between the multilamellar MFI layers. The Ti-species present in the titanosilicate pillars, acid sites supplied by the framework Al-O(H)-Si sites in MFI layers, and mesoporosity collectively endow Si/Ti-PMFI with efficient adsorption assisted photocatalytic functionality, which was exemplified by the degradation of methyl orange (MO) in water. The synthesis of Si/Ti-PMFI zeolites containing Al-O(H)-Si acid sites within MFI layers and Ti-sites between layers diversified the structure, physicochemical properties, and catalytic functionality of hierarchical lamellar zeolites. The Si/Ti-PMFI lamellar zeolites were studied as adsorptive catalysts for photocatalysis, especially when bulky molecules are involved.
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