Wang Shenghua, Zhang Dake, Wang Wu, Zhong Jun, Feng Kai, Wu Zhiyi, Du Boyu, He Jiaqing, Li Zhengwen, He Le, Sun Wei, Yang Deren, Ozin Geoffrey A
State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, 310027, Hangzhou, Zhejiang, P. R. China.
Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Suzhou, P. R. China.
Nat Commun. 2022 Sep 9;13(1):5305. doi: 10.1038/s41467-022-33029-x.
Treating hazardous waste Ni from the electroplating industry is mandated world-wide, is exceptionally expensive, and carries a very high CO footprint. Rather than regarding Ni as a disposable waste, the chemicals and petrochemicals industries could instead consider it a huge resource. In the work described herein, we present a strategy for upcycling waste Ni from electroplating wastewater into a photothermal catalyst for converting CO to CO. Specifically, magnetic nanoparticles encapsulated in amine functionalized porous SiO, is demonstrated to efficiently scavenge Ni from electroplating wastewater for utilization in photothermal CO catalysis. The core-shell catalyst architecture produces CO at a rate of 1.9 mol·g·h (44.1 mmol·g·h), a selectivity close to 100%, and notable long-term stability. This strategy of upcycling metal waste into functional, catalytic materials offers a multi-pronged approach for clean and renewable energy technologies.
处理电镀行业产生的有害镍废料在全球范围内都是一项强制性要求，成本极高，且碳足迹很大。化工和石化行业不应将镍视为一次性废料，而应将其视为一种巨大的资源。在本文所述的工作中，我们提出了一种将电镀废水中的废镍升级转化为用于将一氧化碳转化为二氧化碳的光热催化剂的策略。具体而言，已证明封装在胺功能化多孔二氧化硅中的磁性纳米颗粒能够有效地从电镀废水中清除镍，以用于光热二氧化碳催化。这种核壳催化剂结构以1.9摩尔·克⁻¹·小时⁻¹（44.1毫摩尔·克⁻¹·小时⁻¹）的速率产生一氧化碳，选择性接近100%，并且具有显著的长期稳定性。这种将金属废料升级转化为功能性催化材料的策略为清洁和可再生能源技术提供了一种多管齐下的方法。 （注：原文中“converting CO to CO”表述有误，译文按“converting CO to CO₂”翻译）
