Upcycling of Cr-Containing Sulfate Waste into Efficient FeCrO₃/Fe₂O₃ Catalysts for CO₂ Hydrogenation Reaction.

ABSTRACT: Upcycling Cr-containing sulfate waste into catalysts for CO₂ hydrogenation reaction benefits both pollution mitigation and economic sustainability. In this study, FeCrO₃/Fe₂O₃ catalysts were successfully prepared by a simple hydrothermal method using Cr-containing sodium sulfate (Cr-SS) as a Cr source for efficient conversion and stable treatment of Cr. The removal rate of Cr in Cr-SS can reach 99.9% at the optimized hydrothermal conditions. When the synthesized catalysts were activated and used for the CO₂ hydrogenation reaction, a 50% increase in CO₂ conversion was achieved compared with the catalyst prepared by impregnation with a comparable amount of Cr. According to the extraction and risk assessment code (RAC) of the R

SUBMITTER: Liu Y 

PROVIDER: S-EPMC11012381 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature