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

16 Scopus citations

Abstract

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
Volume7
Issue number6
DOIs
StatePublished - Jan 1 2017
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2022-09-13

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

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