Polypropylene-Derived Luminescent Carbon Dots
Source abstract
Abstract
Polypropylene is one of the most challenging plastics to recycle or upcycle due to its excellent chemical and thermal stability. Here, we report an effective two-step synthesis to prepare carbon dots (CDs) from polypropylene (PP). In the first step, bulk PP is converted to PP nanoparticles (PP-NPs) by using a reprecipitation process. In the second step, the PP-NPs are carbonized by a hydrothermal treatment. The size, structure, and photonic properties of the PP-CDs vary significantly with hydrothermal treatment temperature. At higher temperature, the PP-CDs product is ∼2.5 nm in diameter with a quantum yield of 10.3% and is free from unconverted PP. At lower temperature (120 °C), the PP-CDs are large in size (∼70 nm) and exhibit low quantum yield (0.2%). This work demonstrates an effective method to fully convert polypropylene to carbon dots and shows a high degree of tunability in the size, structure, and photonic properties of the product.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Carbon and Quantum Dots Applications · Caching and Content Delivery · Nanocluster Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Road, Piscataway, New Jersey 08854, United States
Department of Physics & Astronomy, Rowan University, 201 Mullica Hill Rd., Glassboro, New Jersey 08028, United States
Advanced Materials & Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, New Jersey 08028, United States
The Governor’s School of New Jersey in Engineering and Technology, Piscataway, New Jersey 08854, United States
Department of Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, New Jersey 08854, United States
Funding
Governor?s School of New Jersey in Engineering and Technology
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