One-Pot Cu/TiO₂ Nanoparticles Synthesis for Trans-Ferulic Acid Conversion into Vanillin

Area of Science:

• Materials Science
• Nanotechnology
• Catalysis

Background:

• Developing efficient and sustainable methods for producing valuable chemicals is crucial.
• Nanoparticles offer unique catalytic properties due to their high surface area and reactivity.
• Titanium dioxide (TiO2) and copper (Cu) are widely used in various catalytic applications.

Purpose of the Study:

• To develop a cost-efficient one-pot hydrothermal method for co-synthesizing TiO2 and Cu metallic nanoparticles.
• To characterize the synthesized nanocatalysts and investigate the effect of copper loading.
• To evaluate the performance of these nanocatalysts in the sustainable conversion of trans-ferulic acid to vanillin.

Main Methods:

• One-pot hydrothermal synthesis of TiO2 and Cu nanoparticles.
• Characterization using X-ray diffraction, nitrogen porosimetry, scanning electron microscopy, and transmission electron microscopy.
• Catalytic testing for trans-ferulic acid conversion to vanillin.

Main Results:

• Successfully synthesized TiO2 and Cu nanoparticles with high surface areas (>150 m²/g) and mesoporous structures.
• TiO2 particles were approximately 8 nm, while Cu nanoparticles ranged from 12 to >100 nm based on loading.
• The nanocatalyst with a 0.3 Cu/Ti atomic ratio achieved the highest vanillin yield of 70% under sustainable conditions.

Conclusions:

• The one-pot hydrothermal method is effective for producing TiO2-Cu nanocatalysts.
• The synthesized nanocatalysts demonstrate significant potential for sustainable chemical synthesis.
• Optimized copper loading is critical for maximizing catalytic efficiency in vanillin production.