Haoyu Chen, Zhenbo Guo, Xuan Liang, Mei-Qi Zhang, Meng Wang, Ding Ma
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引用次数: 0
Abstract
Exploring the atom-economic transformation strategy for polyethylene terephthalate (PET), the most staple polyester material, can provide more approaches for the upcycling of plastic waste. Herein, we propose a one-pot process to convert PET into 1,4-cyclohexanedicarboxylic acid (CHDA) via the hydrogenation of terephthalic acid (TPA) by utilizing hydrogen stored in ethylene glycol (EG). The tandem process involving PET depolymerization, EG–H2O reforming, and TPA hydrogenation achieved high yields of CHDA (>90%) under optimized conditions. The employment of alkaline solution and combination of commercial Ru/C and Pd/C catalysts played critical roles in optimizing the reaction temperature and gaseous components so as to facilitate a one-pot reaction with enhanced hydrogen utilization. This method provides a feasible pathway for upcycling polyester waste, enabling high-selectivity product formation through efficient hydrogen utilization in a one-pot process.
期刊介绍：
ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels.
The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.
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