Efficient visible-light activation of molecular oxygen to produce hydrogen peroxide using P doped g-C₃N₄ hollow spheres

Abstract

Graphitic carbon nitride (g-C3N4) possesses unique electronic and optical properties in visible-light-driven production of H2O2. However, bulk g-C3N4 suffers from inefficient sunlight absorption and low carrier mobility. Herein, the P...

A Tandem Reaction System for Inactivation of Marine Microorganisms by Commercial Carbon Black and Boron-Doped Carbon Nitride

“…Numerous previous studies have established that g-C 3 N 4 can synthesize H 2 O 2 via two-step single electron transfer or one-step two electrons transfer in a photocatalytic system, − but our results appear to contradict previous findings. One possible explanation is that when the H 2 O 2 concentration in the solution exceeds a specific value, O 2 and H 2 O 2 will compete for adsorption on the catalyst surface.…”

Mesoscale Mechanism of P‐dopant Defects and Interface Synergy for Phenols Degradation

“…This is because the radius of P-atom (100 pm) is greater than that of the substituted C-atom (70 pm). [18] The increase of specific surface area from BCN to TCN and P-TCN-0.51 in Figure S1 further justify the increased interlayer spacing. In addition, when P-TCN-0.51 is composed with NiFe-LDHs, the specific area of the composite is enhanced greatly from 20 to 39 m 2 /g, which is conducive to enhance the photocatalysis.…”

A carbon dot-based metal-free photocatalyst enables O2 to serve as both a reactant and electron sink for enhancing H2O2 photoproduction

“…[1][2][3][4] The process of photocatalysis is simple and convenient, which involves dispersing a photocatalyst in water and then yielding a product under light, which has good prospect for industrialization. 5,6 Hydrogen peroxide (H 2 O 2 ), as an alternative clean oxidant material, [7][8][9][10] has the advantages of convenient transportation and higher energy density than hydrogen, exhibiting wide application in synthesis, industry and other elds. [11][12][13][14][15] However, the major method for the synthesis of H 2 O 2 at present is anthraquinone oxidation, which has high energy consumption and the risk of explosion.…”