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Synergistic dual-defect band engineering for highly efficient photocatalytic degradation of microplastics via Nb-induced oxygen vacancies in SnO2 quantum dots

Journal of Materials Chemistry A 2025 24 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Jianqiao Liu, Dan Zhao, Xian Wu, Di Wu, Ningning Su, Yang Wang, Fang Chen, Ce Fu, Junsheng Wang, Qianru Zhang

Summary

Researchers engineered a new material using niobium-doped tin oxide quantum dots that can break down polyethylene microplastics in water using visible light. The material works through a photocatalytic process, meaning sunlight can power the degradation of microplastics in real-world water conditions. This technology could offer a practical way to clean microplastic-contaminated water sources.

Polymers
PE

Synergistic dual-defect engineering in Nb-doped SnO 2 QDs boosts visible-light photocatalysis by creating oxygen vacancies, narrowing bandgaps, and extending carrier lifetimes, enabling efficient degradation of PE microplastics in real-world water.

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