Development of Synthetic Route for Fe-substituted MWW-type Zeolites Using Mechanochemical Method

Ryota Osuga, Ginpei Tanaka, Mizuho Yabushita, Kakeru Ninomiya, Sachiko Maki, Maiko Nishibori, Kiyoshi Kanie, Atsushi Muramatsu

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3 Citations (Scopus)


Fe-substituted MWW-type zeolites ([Fe]-MWWMC) were successfully synthesized by a mechanochemically assisted hydrothermal synthesis, termed the mechanochemical method, for the first time and compared with samples prepared by the conventional hydrothermal method ([Fe]-MWWHT). A mechanochemical reaction between SiO2 and α-FeOOH, which is the first step of the mechanochemical method, yielded an amorphous Si_Fe composite oxide that consisted of tetrahedrally coordinated Fe species in a SiO2 network, as confirmed by X-ray diffraction, UV-vis and Fourier transform infrared spectroscopies. A hydrothermal treatment for crystallization of the zeolite using a thus-prepared amorphous Si_Fe composite as a precursor as the second step led to the formation of [Fe]-MWWMC zeolites with well-introduced and dispersed Fe species in their framework. The improved homogeneity of the Fe species in [Fe]-MWWMC resulted in less extra-framework Fe species compared with [Fe]MWWHT. The mechanochemical method was thus confirmed as an efficient route for the synthesis of metallosilicates with well-introduced and dispersed heteroatoms in their framework.

Translated title of the contributionメカノケミカル法を用いた Fe 置換 MWW 型ゼオライトの合成
Original languageEnglish
Pages (from-to)67-77
Number of pages11
Journaljournal of the japan petroleum institute
Issue number2
Publication statusPublished - 2022

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Energy Engineering and Power Technology


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