CO2 reduction was accomplished under controlled-potential
electrolysis and UV–vis radiation. The reaction was carried out in
150 mL supporting electrolyte containing dissolved CO2 by bubbling
CO2 gas (OXI-MEDIN) through it. Quantification of dissolved
CO2 was done by dissolved inorganic carbon analysis; a total
organic carbon analyzer Shimadzu model TOC-VCPN was employed