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- W3081972166 abstract "Mesoporous silica nanoflowers bearing -NH2 groups were synthesized by the hydrolysis of tetraethyl orthosilicate (TEOS) with reverse microemulsion method, following with the grafting of -NH2 groups by the post modification with (3-Aminopropyl) trimethoxysilane (APTMS). The lipase from C. antarctica was immobilized on the as-synthesized amino-grafted mesoporous silica nanoflowers to fabricate the lipase-immobilized mesoporous silica nanoflowers composite, which was applied for the catalytic transformation of biomass-derived levulinic acid to biofuel ethyl levulinate (EL), and exhibited excellent catalytic activity. An ethyl levulinate yield as high as 99.5% could be achieved at 40 °C in 8 h reaction time, which was much higher than that catalyzed by the free lipase (67.9%) under the identical conditions. The immobilized lipase showed good stability and recyclability that ethyl levulinate yields above 68% could be remained after seven recycle times. This work represents a novel strategy to construct the immobilized biocatalyst for the production of bio-based chemicals." @default.
- W3081972166 created "2020-09-08" @default.
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- W3081972166 date "2020-12-01" @default.
- W3081972166 modified "2023-10-11" @default.
- W3081972166 title "Selective production of ethyl levulinate from levulinic acid by lipase-immobilized mesoporous silica nanoflowers composite" @default.
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- W3081972166 doi "https://doi.org/10.1016/j.fuproc.2020.106578" @default.
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