Synthesis of titanosilicate pillared MFI zeolite as an efficient photocatalyst

Laleh Emdadi, Dat T. Tran, Junyan Zhang, Wei Wu, Haomin Song, Qiaoqiang Gan, Dongxia Liu

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


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.
Original languageEnglish (US)
Pages (from-to)3249-3256
Number of pages8
JournalRSC Advances
Issue number6
StatePublished - Jan 1 2017
Externally publishedYes

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Chemistry


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