Li Zhen, Wang Ye, Choy Kwang Leong
Suzhou Key Laboratory of Advanced Sustainable Materials and Technologies, The Environmental Research Center, Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan 215316, China.
Nanomaterials (Basel). 2025 Aug 26;15(17):1311. doi: 10.3390/nano15171311.
The photoreforming of plastics into fuel and small organic molecules at ambient temperature presents a sustainable alternative to landfills and incineration. However, most existing photocatalysts depend on noble or toxic metals, limiting their environmental compatibility. Here, we present a non-toxic, eco-friendly Cu-doped ZnS photocatalyst synthesized via a simple one-pot wet chemical method for efficient plastic waste conversion in an alkaline solution. This earth-abundant catalyst exhibits broad visible light absorption and exceptional charge transfer efficiency, enabling high photocatalytic activity. By optimizing Cu doping levels, we achieve a promising H generation rate of 201.5 μmol g h. We elucidate the photoreforming mechanism, paving the way for scalable and sustainable plastic upcycling.
在室温下将塑料光重整为燃料和小分子为垃圾填埋和焚烧提供了一种可持续的替代方案。然而，大多数现有的光催化剂依赖于贵金属或有毒金属，限制了它们的环境兼容性。在此，我们展示了一种通过简单的一锅湿化学方法合成的无毒、环保的铜掺杂硫化锌光催化剂，用于在碱性溶液中高效转化塑料废物。这种储量丰富的催化剂具有广泛的可见光吸收和优异的电荷转移效率，从而实现了高光催化活性。通过优化铜掺杂水平，我们实现了201.5 μmol g⁻¹ h⁻¹ 的可观产氢速率。我们阐明了光重整机制，为可扩展和可持续的塑料升级回收铺平了道路。
