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Abstract
This research presents a strategy for upcycling waste nickel (Ni) from electroplating wastewater into a photothermal catalyst for converting CO<sub>2</sub> to CO. Magnetic nanoparticles encapsulated in amine-functionalized porous SiO<sub>2</sub> efficiently scavenge Ni, creating a core-shell catalyst that produces CO at a rate of 1.9 mol<sub>Ni</sub><sup>−1</sup>h<sup>−1</sup> (44.1 mmol<sub>gcat</sub> h<sup>−1</sup>) with near 100% selectivity and long-term stability. This approach offers a sustainable solution for hazardous waste treatment and clean energy production.
Publisher
Nature Communications
Published On
Sep 09, 2022
Authors
Shenghua Wang, Dake Zhang, Wu Wang, Jun Zhong, Kai Feng, Zhiyi Wu, Boyu Du, Jiaqing He, Zhengwen Li, Le He, Wei Sun, Deren Yang, Geoffrey A. Ozin
Tags
upcycling
waste nickel
photothermal catalyst
CO2 conversion
sustainable solution
hazardous waste treatment
clean energy

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