Catalytic conversion of biomass-derived levulinic acid to γ-valerolactone over phosphate modified ZrO2/SBA-15

Zhao, Rong; Bae, Jong Wook

doi:10.1016/j.cattod.2024.114718

Catalysis Today

2024

DOI: 10.1016/j.cattod.2024.114718

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Catalytic conversion of biomass-derived levulinic acid to γ-valerolactone over phosphate modified ZrO2/SBA-15

Rong Zhao,

Jong Wook Bae

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2024

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Cited by 2 publications

References 51 publications

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Molecular Selectivity of a pH-Tunable Lecithin-Modified Zirconia Stationary Phase

Ikuta,

Tsubouchi,

Iwamoto

et al. 2024

ACS Omega

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We synthesized lecithin-modified zirconia (LMZ) as an adsorbent, solid-phase extractant, and stationary phase for organic compounds such as organic acids or amino acids. The molecular selectivity of LMZ was evaluated through high-performance liquid chromatography (HPLC). LMZ exhibits electrostatic and hydrophobic interactions with organic compounds that depend on the pH of the mobile phase. Zirconia was chosen because of its strong affinity for phosphate-containing compounds. Soybean lecithin, a model phospholipid, was directly and stably grafted onto zirconia particles through a Lewis acid−base reaction to form LMZ. The presence of lecithin on the zirconia surface was confirmed through solid-state analytical techniques such as confocal laser scanning microscopy and thermogravimetric analysis. The molecular selectivity of LMZ was assessed by measuring the retention behavior of aromatic compounds and amino acids on an LMZ column using HPLC. LMZ recognized analyte organic compounds through both electrostatic and hydrophobic effects that depended on the pH of the mobile phase. Interestingly, LMZ could clearly discriminate between electrostatic interactions with hydrophilic compounds such as amino acids and hydrophobic interactions with hydrophobic compounds such as aromatics. The specific molecular selectivity achieved using LMZ was attributed to not only the zirconia substrate but also the ionic and alkyl functional groups of lecithin.

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Molecular Selectivity of a pH-Tunable Lecithin-Modified Zirconia Stationary Phase

Ikuta,

Tsubouchi,

Iwamoto

et al. 2024

ACS Omega

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Application of Catalysts in the Conversion of Biomass and Its Derivatives

Cai,

Wei,

Wang

et al. 2024

Catalysts

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With the continuous depletion of fossil resources and the deterioration of the global climate, it is particularly urgent to find green and sustainable renewable resources to replace non-renewable resources. Renewable biomass, which converts and stores light energy into chemical energy through photosynthesis by green plants, has received widespread attention due to its simultaneous resource and energy properties. Therefore, this article focuses on lignocellulose, an important component of biomass, in the fields of chemical conversion and high-value-added chemical preparation. A detailed review was conducted on the application of catalysts in biomass bio-char, bio-oil, bio-gas, and high-value added chemicals and their derivatives, represented by 5-hydroxymethylfurfural (5-HMF) and levulinic acid (LA). At the same time, the difficulties and challenges encountered by catalysts in biomass conversion were analyzed, and new ideas were proposed for future development directions, so as to provide new development pathways for efficient and green conversion of biomass into biomass energy and high-value-added chemicals.

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Catalytic conversion of biomass-derived levulinic acid to γ-valerolactone over phosphate modified ZrO2/SBA-15

Cited by 2 publications

References 51 publications

Molecular Selectivity of a pH-Tunable Lecithin-Modified Zirconia Stationary Phase

Molecular Selectivity of a pH-Tunable Lecithin-Modified Zirconia Stationary Phase

Application of Catalysts in the Conversion of Biomass and Its Derivatives

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