Effect of catalyst composition on the hydrogenation efficiency and product yield in the catalytic degradation of polyethylene terephthalate
Department of Chemistry and Chemistry Engineering, University of New Haven, West Haven, CT, U.S.A.
Research Article
World Journal of Advanced Research and Reviews, 2024, 21(01), 2951-2958
Publication history:
Received on 19 November 2023; revised on 07 January 2024; accepted on 09 January 2024
Abstract:
The catalytic degradation of polyethylene terephthalate (PET) represents a promising strategy to mitigate environmental pollution and enhance the circular economy. This systematic review critically examined the effect of catalyst composition on hydrogenation efficiency and product yield in the catalytic degradation of PET. A comprehensive literature search was conducted using databases such as Scopus, Web of Science, and Google Scholar, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The review addressed four key research questions: (1) how different catalyst compositions influenced hydrogenation efficiency, (2) the identification of the optimal catalyst formulation that maximized product yield while minimizing by-product formation, (3) the analysis of reaction kinetics and mechanistic pathways, and (4) the comparative evaluation of catalytic systems for sustainable PET recycling and upcycling.
The findings indicated that catalyst composition significantly affected reaction outcomes. Bimetallic catalysts, particularly those combining palladium with nickel (Pd–Ni) or ruthenium with nickel (Ru–Ni), demonstrated superior performance with conversion efficiencies reaching up to 95% and product yields as high as 90% compared to their monometallic counterparts (Guo et al., 2024; Stadler et al., 2019). Kinetic studies revealed that catalysts with well-dispersed active sites reduced activation energies, thereby enhancing hydrogenation rates. Moreover, the integration of nanocatalytic systems contributed to improved catalyst performance and energy efficiency.
Keywords:
Catalyst Composition; Hydrogenation Efficiency; Product Yield; Polyethylene Terephthalate (PET) Degradation; Sustainable Recycling
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