Unveiling the Catalytic Superiority of Ti-MWW Zeolite for Sustainable Lactide Production from Methyl Lactate.

ABSTRACT: The gas-phase route from methyl lactate (ML) to lactide (LD) holds significant promise for sustainable monomer production, offering a valuable platform to explore the structure-activity landscape of heterogeneous catalysts. Here, we investigate a series of Ti-containing zeolite catalysts, including both TiO₂-impregnated and Ti-incorporated microporous materials, to elucidate the structural and electronic factors governing LD selectivity and productivity. MWW-type titanosilicates, featuring open frameworks and high external surface areas, consistently outperformed conventional microporous and mesoporous counterparts. Notably, Ti-MWW-del, prepared via delamination of a silanol-rich MWW precursor, achieved the highest lactide productivity, enabled by superior Ti site dispersion and

SUBMITTER: Lee H 

PROVIDER: S-EPMC12750186 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature