Efficient hydroxylation of benzene to phenol by H2O2 using Ni-doped CuWO4 on carbon nitride as a catalyst under solar irradiation and its structure–activity correlation

2020 ◽  
Vol 8 (25) ◽  
pp. 12774-12789 ◽  
Author(s):  
Purashri Basyach ◽  
Ankur Kanti Guha ◽  
Sukanya Borthakur ◽  
Lisamoni Kalita ◽  
Pubali Chetia ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Environmentally Benign ◽  
Graphitic Carbon Nitride ◽  
Solar Irradiation ◽  
Highly Efficient ◽  
Hydroxylation Of Benzene ◽  
Structure Activity

A series of environmentally benign and highly efficient Z-scheme Ni-doped CuWO4 nanoparticles on graphitic carbon nitride (g-C3N4) were synthesized.

scholarly journals Band Engineering and Morphology Control of Oxygen-Incorporated Graphitic Carbon Nitride Porous Nanosheets for Highly Efficient Photocatalytic Hydrogen Evolution

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yunyan Wu ◽  
Pan Xiong ◽  
Jianchun Wu ◽  
Zengliang Huang ◽  
Jingwen Sun ◽  
...  
Keyword(s):  
Surface Area ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Separation Efficiency ◽  
Physical Adsorption ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Hydrogen Evolution ◽  
Band Engineering ◽  
Highly Efficient

AbstractGraphitic carbon nitride (g-C3N4)-based photocatalysts have shown great potential in the splitting of water. However, the intrinsic drawbacks of g-C3N4, such as low surface area, poor diffusion, and charge separation efficiency, remain as the bottleneck to achieve highly efficient hydrogen evolution. Here, a hollow oxygen-incorporated g-C3N4 nanosheet (OCN) with an improved surface area of 148.5 m2 g−1 is fabricated by the multiple thermal treatments under the N2/O2 atmosphere, wherein the C–O bonds are formed through two ways of physical adsorption and doping. The physical characterization and theoretical calculation indicate that the O-adsorption can promote the generation of defects, leading to the formation of hollow morphology, while the O-doping results in reduced band gap of g-C3N4. The optimized OCN shows an excellent photocatalytic hydrogen evolution activity of 3519.6 μmol g−1 h−1 for ~ 20 h, which is over four times higher than that of g-C3N4 (850.1 μmol g−1 h−1) and outperforms most of the reported g-C3N4 catalysts.

Boosting photocatalytic H2O2 production by coupling of sulfuric acid and 5-sulfosalicylic acid incorporated polyaniline with g-C3N4

2020 ◽  
Vol 4 (8) ◽  
pp. 4186-4195 ◽  
Author(s):  
Hao-Dong Yang ◽  
Jun-Hao Huang ◽  
Kengo Shibata ◽  
Daling Lu ◽  
Kazuhiko Maeda ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Solar Irradiation ◽  
H2o2 Production ◽  
Sulfosalicylic Acid ◽  
Simulated Solar Irradiation

In this study, graphitic carbon nitride (g-C3N4, CN) was decorated with polyaniline (PANI), which was incorporated with inorganic (H2SO4) and organic (5-sulfosalicylic acid, SSA) acids for photocatalytic H2O2 production under simulated solar irradiation.

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