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The efficient and economic heteroatom-implanting method for MWW-type zeolite has been the focus of attention and needs further exploration. Ti incorporated MWW zeolite was synthesized by sequential treatment of boron-containing zeolite precursor. The catalysts were applied to the epoxidation of 1-hexene. The implanting titanium process was conducted under a mild condition with Ti(SO4)(2)/NH4HF2/HNO3 solution, and the product Ti-MWW precursors have framework titanium alone, the novel method is named as refluxing and implanting titanium method which integrates acid treatment and titanium incorporation into one step and reduces the consumption of time of this process into 1 h. A density functional theory was conducted to explain the formation mechanism of interlayer-expanded structure of Ti-MWW zeolite. Subsequently, Ti-MWW precursors were treated in modified reagent solution to obtain larger pore structure, which increase the conversion of 1-hexene from 20.45 to 62.96%. The catalytic performance of Ti-MWW zeolite in this work are superior to Ti-MWW zeolite synthesized by traditional dry-gel conversion method the conversion of 1-hexene of which was 4.2%. This novel method is a promising approach for the synthesis of high catalytic performance heteroatomic zeolite. [GRAPHICS] .
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CATALYSIS LETTERS
ISSN: 1011-372X
Year: 2022
Issue: 2
Volume: 153
Page: 348-363
2 . 8
JCR@2022
2 . 3 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:74
JCR Journal Grade:3
CAS Journal Grade:4
Cited Count:
WoS CC Cited Count: 5
SCOPUS Cited Count: 3
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: