Regulating the Assembly of Precursors of Carbon Nitrides to Improve Photocatalytic Hydrogen Production

Two-dimensional graphitic carbon nitrides (2D g-C3N4) are promising photocatalysts for water splitting to hydrogen due their non-toxicity and high stability. However, the bulk g-C3N4 has some intrinsic drawbacks, such as rapid electron–hole recombination low charge-carrier mobility, resulting in poor photocatalytic activity. Here, 2,4-diamine-6-phenyl-1,3,5-triazine was employed a precursor regulating assembly of melamine cyanuric acid water. The not only improved visible light absorption separation but also provided more catalytic sites enhanced evolution. modified (CNP10-H) showed hydrogen-releasing rate 2184 ?mol·g?1·h?1, much higher than g-C3N4.