Authors
Nan Zhao, Xiangjun Liu, Mingyu Chu, Qi Lu, Binglei Jiao, Haoyue Yang, Yuqing Luo, Yu Ji, Panpan Xu, Jinxing Chen, Qiao Zhang, Muhan Cao
Published in
Angewandte Chemie (International ed. in English). Pages e2880918. Jul 17, 2026. Epub Jul 17, 2026.
Abstract
Plastics and CO2 are two major waste carbon resources, and their management and recycling are attracting increasing attention. CO2-mediated plastic upcycling represents a promising strategy for the simultaneous transformation of both wastes, yet it still suffers from high energy demand, low efficiency, and limited applicability to diverse plastics. Here, we report a solar-driven photothermal strategy that enables the efficient and energy-saving CO2-mediated reforming of various plastics, including polyolefins, polyesters, copolymers, and their mixtures, into high-value syngas and carbon nanotubes (CNTs). The process achieves a syngas yield of 165.6 mmol gcat -1 h-1, an order of magnitude higher than that of conventional thermocatalysis. Within this system, CO2 acts not only as an oxidant that consumes the hydrogen species released during plastic dehydrogenation, thereby enhancing efficiency and suppressing methanation but also as a carbon feedstock that directly contributes to both gaseous and solid products. This study provides a powerful solution for the valorization of complex plastic wastes and greenhouse gases and offers new insights into solar-driven chemical transformations toward a circular carbon economy, while further optimization of the H2/CO ratio may expand its compatibility with specific downstream applications.
PMID:
42464672
Bibliographic data and abstract were imported from PubMed on 17 Jul 2026.
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