Table 1 Summary of the photocatalytic CO2 conversion efficiency during 5 h of constant irradiation

From: Porous hypercrosslinked polymer-TiO2-graphene composite photocatalysts for visible-light-driven CO2 conversion

Photocatalyst

Visible-light irradiation (μmol g-1 h−1)

r(CH4)a

r(CO)b

Re(CH4)c

Re(CO)d

R e e

P25

0.23

0.10

2

0

2

TiO2

0.21

0.46

2

1

3

TiO2-G

2.42

0.49

19

1

20

HCP-FG

0.90

7.62

7

15

22

TiO2/HCP-FG

6.71

16.17

54

32

86

HCP-TiO2-FG

27.62

21.63

221

43

264

  1. a,bAverage of gas evolution rate (r) during 5 h of photocatalytic CO2 reduction
  2. c,dRate of electron consumption for CH4 and CO evolution; Re(CH4)  =  8r(CH4), Re(CO)  =  2r(CO)
  3. eRe is the rate of total consumed electron number for the reduced product; Re  =  8r(CH4)  +  2r(CO)
  4. fP25 is the commercial TiO2 (Degussa)
Back to article page