Sustainable electrochemical process for recovery of metal ions in synthetic mining wastewater and their utilization in photocathodic CO2 reduction into formic acid

G. Bharath,Abdul Hai,K. Rambabu,Mohammad Abu Haija,Fawzi Banat

Resources, Conservation and Recycling（2023）

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摘要

•Mining wastewater is treated with PANI-DSAC electrodes to recover metal ions.•PANI-DSAC had a high specific capacitance of 690 F g−1 with higher Fe2+ and Cu2+ removal.•A CuFe2O4/CFs-DSAC was developed for PEC CO2RR from a post-reaction PANI-DSAC electrode.•CuFe2O4/CFs-DSAC photocathode exhibited higher HCOOH yield and faradic efficiency.

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关键词

Waste into wealth,Capacitive deionization,Symmetric electrodes,Recovery of metal ions,Photoelectrochemical CO2 reduction,Carbon neutrality

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