Efficient Methanolysis of PET toward High-Purity DMT via Homo-Heterogeneous Mn²⁺/Mn₂O₃ Synergistic Catalysis

Key Points

• This research aims to explore a manganese-based catalytic system for the efficient conversion of PET waste into high-purity DMT.
• Utilized a homo-heterogeneous Mn²⁺/Mn₂O₃ catalytic system for methanolysis of PET.
• Analyzed reaction conditions optimizing yield and purity of DMT production.
• Compared performance against traditional zinc-based catalysts.
• Achieved high-purity DMT production with over 90% yield under optimized conditions.
• Manganese catalyst demonstrated superior catalytic efficiency compared to zinc counterparts.
• Characterization confirmed the stability and effectiveness of the manganese system in the depolymerization reaction.