Page 120 - Multifunctional Photocatalytic Materials for Energy

108 Multifunctional Photocatalytic Materials for Energy

Photocatalytic performance in hydrogen evolution of carbon nitride derived from different
Ref. [15] [20] [18] [26] [27] [23] [21] [21] [21] [21] [18] [18] [18] [18] [18] [24] [22] [23] [23] [18] [18] [25] [28]

Photocatalytic performance in hydrogen evolution (TEOA, Pt) 770 μmol H 2 after 72 h 4.8 times higher 12.1 μmol h −1 4.8 μmol h −1 82.9 μmol h −1 20.9 μmol h −1 0.29 μmol h −1 2.97 μmol h −1 6.89 μmol h −1 3.79 μmol h −1 3.4 μmol h −1 23.5 μmol h −1 79.0 μmol h −1 109.1 μmol h −1 89.8 μmol h −1 19,412 μmol

Surface area/m 2 g −1 10 20.91 10 124 196 12.3 6.0 cm 2 g −1 41.5 cm 2 g −1 173.6 cm 2 g −1 210.1 cm 2 g −1 43 49 58 77 97 43.8 135.6 69.6 11.3 27 52 15.6 86.4

precursors and different polymerization parameters

Polymerization parameters (annealing temp, duration, and atmosphere) 550°C, 4 h, air 550°C, 4 h, H 2 atmosphere 550°C, 2 h, air 550°C, 4 h, N 2 , subsequently 550 o C, 2 h, H 2 550°C, 4 h, air, subsequently 510 o C, 1 h, NH 3 550°C, 3 h, air 470°C, 2 h, air 500°C, 2 h, air 520°C, 2 h, air 540°C, 2 h, air 450°C, 2

Table 6.1 Precursor Cyanamide Dicyandiamide Dicyandiamide Dicyandiamide Dicyandiamide Dicyandiamide Melamine Melamine Melamine Melamine Urea Urea Urea Urea Urea Urea Urea Urea Thiourea Thiourea Thiourea H 2 SO 4 -melamine HNO 3 -melamine