Fig. 7: Photocatalytic activity towards CO2 reduction.

a Amount and TON for CO formation in the presence of TPY-TTF OG under visible light. b Amount and TON for CO formation in the presence of Zn-TPY-TTF CPG under visible light. c TON for CO formation under sunlight from 28th to 30th Sept 2019 (10:00 am to 4:00 pm) in the presence of Zn-TPY-TTF CPG. d CO2 reduction by Pt@Zn-TPY-TTF CPG (amount of CH4 and H2 formation with time) under visible light. e TON value and % selectivity for CH4 formation using Pt@Zn-TPY-TTF CPG under visible light. f TON for CH4 formation from CO2 upon sunlight irradiation from 1st to 3rd Oct 2019 (10:00 am to 4:00 pm) in the presence of Pt@ Zn-TPY-TTF CPG. Error bars in panels a, b and e represents the standard deviations of three catalytic runs. Error bars in panels c and f represents the temperature range of photocatalytic set-up during catalysis under the sunlight irradiation.