Ultraresponsive Donor–Acceptor System for Transforming Poly(lactic) Acid into Amino Acids with Visible Light

ACS Applied Engineering Materials Pub Date : 2025-01-02 DOI:10.1021/acsaenm.4c0059710.1021/acsaenm.4c00597

Rajat Singhal, Ripsa Rani Nayak, Satyam Singh*, Rajesh Kumar Yadav, Ravindra Vikram Singh and Navneet Kumar Gupta*,

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Abstract

A photocatalytic, green, and cost-effective approach is the most promising pathway for the transformation of sustainable plastic waste, poly(lactic) acid (PLA). However, PLA degrades into carbon dioxide and water. This degradation process is slow and problematic, as it emits CO₂, causing global warming effects. Consequently, there is an urgent need to develop innovative strategies for upcycling PLA into lanthanide as an amino acid for protein formation. Therefore, we report the formation of an ultraresponsive donor–acceptor coupled system, i.e., ferrocene carboxaldehyde (FCaldh) covalently coupled with an amine-modified nanodiamond (ND)-based chromophore (FCaldhCND photocatalyst) for upcycling poly(lactic acid) into alanine. The FCaldh moiety served as an external light-harvesting component in the conjugated photocatalytic system. The donor–acceptor photocatalytic system (FCaldhCND) led to an amino acid (alanine) generation of 77% in comparison to constituents. This research study presents an attractive approach for upcycling PLA waste and opens avenues for the green synthesis of different types of amino acids.

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ACS Applied Engineering Materials 材料科学-

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期刊介绍： ACS Applied Engineering Materials is an international and interdisciplinary forum devoted to original research covering all aspects of engineered materials complementing the ACS Applied Materials portfolio. Papers that describe theory simulation modeling or machine learning assisted design of materials and that provide new insights into engineering applications are welcomed. The journal also considers experimental research that includes novel methods of preparing characterizing and evaluating new materials designed for timely applications. With its focus on innovative applications ACS Applied Engineering Materials also complements and expands the scope of existing ACS publications that focus on materials science discovery including Biomacromolecules Chemistry of Materials Crystal Growth & Design Industrial & Engineering Chemistry Research Inorganic Chemistry Langmuir and Macromolecules.The scope of ACS Applied Engineering Materials includes high quality research of an applied nature that integrates knowledge in materials science engineering physics mechanics and chemistry.