Synthesis of 5-hydroxymethylfurfural from glucose using a tert-butoxyapatite catalyst

Area of Science:

• Catalysis
• Green Chemistry
• Biomass Conversion

Background:

• 5-hydroxymethylfurfural (5-HMF) is a key platform chemical derived from biomass.
• Efficient and sustainable methods for 5-HMF production are crucial for biorefineries.
• Heterogeneous catalysts offer advantages in separation and reusability for biomass conversion.

Purpose of the Study:

• To synthesize and characterize a novel tert-butoxyapatite heterogeneous catalyst.
• To investigate the catalytic performance of tert-butoxyapatite for glucose conversion to 5-HMF.
• To optimize reaction conditions for maximizing 5-HMF yield and glucose conversion.

Main Methods:

• Preparation and characterization of tert-butoxyapatite using XRD, SEM, TEM, EDS, HR-TEM, N2 adsorption/desorption, XPS, and FT-IR.
• Catalytic conversion of glucose to 5-HMF under varying temperatures, catalyst loadings, and glucose concentrations.
• Analysis of reaction products to determine glucose conversion and 5-HMF yield.

Main Results:

• The tert-butoxyapatite catalyst exhibited both acidic and basic sites.
• Optimal conditions achieved 87% glucose conversion and 48% 5-HMF yield at 160 °C with 20 wt% catalyst loading over 12 hours.
• The catalyst demonstrated reusability in multiple reaction cycles.

Conclusions:

• Tert-butoxyapatite is an effective heterogeneous catalyst for glucose to 5-HMF conversion.
• The catalyst's dual acidic-basic nature contributes to its high performance.
• The developed catalytic system shows promise for sustainable production of 5-HMF.