Enhanced electron transfer and photocatalytic hydrogen production over the carbon nitride/porphyrin nanohybrid finely bridged by special copper

2020 ◽  
Vol 10 (6) ◽  
pp. 1640-1649 ◽  
Author(s):  
Meiqi Zhang ◽  
Kun Zhu ◽  
Lixia Qin ◽  
Shi-Zhao Kang ◽  
Xiangqing Li
Keyword(s):  
Electron Transfer ◽  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution

A graphitic carbon nitride/tetrakis-(4-hydroxyphenyl)porphyrin nanohybrid smartly fabricated with special Cu showed excellent photocatalytic hydrogen evolution performance.

Efficient photocatalytic hydrogen evolution mediated by defect-rich 1T-PtS2 atomic layer nanosheet modified mesoporous graphitic carbon nitride

2019 ◽  
Vol 7 (32) ◽  
pp. 18906-18914 ◽  
Author(s):  
Jinyuan Liu ◽  
Hui Xu ◽  
Jia Yan ◽  
Jihua Huang ◽  
Yanhua Song ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Atomic Layer ◽  
Production Performance ◽  
Graphitic Carbon Nitride ◽  
Intimate Contact ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution ◽  
Effective Separation

The intimate contact heterostructures between defect-rich 1T-PtS2 atomic layer nanosheets and MCN have been constructed, which promote the effective separation of photogenerated carriers, thus improving the photocatalytic hydrogen production performance.

Ultrathin graphitic carbon nitride nanosheets with remarkable photocatalytic hydrogen production under visible LED irradiation

2017 ◽  
Vol 53 (68) ◽  
pp. 9430-9433 ◽  
Author(s):  
Ji-Tong Yin ◽  
Zhe Li ◽  
Yong Cai ◽  
Qian-Feng Zhang ◽  
Wei Chen
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Hydrogen Evolution ◽  
Visible Light Driven ◽  
Carbon Nitride Nanosheets ◽  
Led Irradiation

Ultrathin graphitic carbon nitride nanosheets with exceptional visible-light-driven photocatalytic hydrogen evolution efficiency are prepared via a facile secondary calcination approach.

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.

scholarly journals A comparison study of sodium ion- and potassium ion-modified graphitic carbon nitride for photocatalytic hydrogen evolution

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 15701-15709
Author(s):  
Siyu Hu ◽  
Anchi Yu ◽  
Rong Lu
Keyword(s):  
Size Effect ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Sodium Ion ◽  
Graphitic Carbon Nitride ◽  
Comparison Study ◽  
Photocatalytic Hydrogen Evolution ◽  
Optical And Electronic Properties ◽  
Ion Size

The ion size effect on graphitic carbon nitride is responsible for variations in its structure, optical and electronic properties, and hence the enhancement in photocatalytic hydrogen evolution.

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