陈金星教授课题组在adv. mater.上发表论文-尊龙凯时

作者：

yu liu¹, penglei yan¹, xiaodong li², qingye li³*, shengming li¹, hao han¹, mingyu chu¹, jie fu³, muhan cao³, panpan xu⁴, qiao zhang¹, le he³, and jinxing chen¹*

单位：

¹institute of functional nano & soft materials (funsom), jiangsu key laboratory of carbon-based functional materials and devices, soochow university, suzhou 215123, p. r. china.

²max planck institute of microstructure physics, weinberg 2, 06120 halle, germany.

³jiangsu key laboratory of advanced negative carbon technologies, soochow university, suzhou 215123, p. r. china.

⁴advanced materials division, suzhou institute of nano-tech and nano-bionics, chinese academy of sciences, suzhou 215123, p. r. china.

摘要：

the selective recycling of mixed plastic wastes with similar structural units is challenging. while heterogeneous catalysis shows potential for selective recycling, challenges such as complex mass transfer at multiphase interfaces and unclear catalytic mechanisms have slowed progress. in this study, a breakthrough in recycling mixed polyester wastes is introduced using heterogeneous photothermal catalysis. by adding co-solvents, the difficulties associated with multiphase interfacial mass transfer are overcome. grain boundary (gb)-rich ceo₂ photothermal catalysts are used to selectively glycolyze mixed poly(ethylene terephthalate) (pet) and poly(bisphenol a carbonate) (pc) plastics into bisphenol a (bpa) and bis(2-hydroxyethyl) terephthalate (bhet), achieving yields of 97.8% and 93.4%, respectively. the high concentration of oxygen vacancies in gb-rich ceo₂ catalysts adjusts the adsorption energy of intermediates, leading to more selective and efficient depolymerization compared to gb-poor ceo₂ catalysts. the economic and environmental analysis demonstrates that this process, which utilizes heterogeneous photothermal catalysis, provides significant energy savings and carbon reduction, representing a major advancement in mixed plastic waste recycling.

影响因子：

27.4

分区情况：

一区

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