Grave-to-cradle upcycling of Ni from electroplating wastewater to photothermal CO₂ catalysis.

ABSTRACT: Treating hazardous waste Ni from the electroplating industry is mandated world-wide, is exceptionally expensive, and carries a very high CO₂ 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 CO₂ to CO. Specifically, magnetic nanoparticles encapsulated in amine functionalized porous SiO₂, is demonstrated to efficiently scavenge Ni from electroplating wastewater for utilization in photothermal CO₂ catalysis. The core-shell catalyst architecture produces CO at a rate of 1.9 mol·g_Ni^-1·h<

SUBMITTER: Wang S 

PROVIDER: S-EPMC9463155 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature