Maleic hydrazide-based molecule doping in three-dimensional lettuce-like graphite carbon nitride towards highly efficient photocatalytic hydrogen evolution

2020 ◽  
Vol 272 ◽  
pp. 119009 ◽  
Author(s):  
Yazhou Zhang ◽  
Zhenxiong Huang ◽  
Jinwen Shi ◽  
Xiangjiu Guan ◽  
Cheng Cheng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Maleic Hydrazide ◽  
Three Dimensional ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient

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.

Salt-assisted synthesis of 3D open porous g-C3N4 decorated with cyano groups for photocatalytic hydrogen evolution

Nanoscale ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 3008-3013 ◽  
Author(s):  
Zhangfa Chen ◽  
Shangchen Lu ◽  
Qianling Wu ◽  
Fang He ◽  
Naiqin Zhao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Freeze Drying ◽  
Carbon Nitride ◽  
Three Dimensional ◽  
Porous Graphitic Carbon ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Step Process ◽  
Photocatalytic Hydrogen Evolution ◽  
Cyano Groups

Three-dimensional open porous graphitic carbon nitride with cyano groups (3D OPG-C3N4-CN) has been fabricated by a facile two-step process that combines NaCl-assisted freeze-drying with calcination.

Three-dimensional assemblies of carbon nitride tubes as nanoreactors for enhanced photocatalytic hydrogen production

2020 ◽  
Vol 8 (1) ◽  
pp. 305-312 ◽  
Author(s):  
Chen Zhao ◽  
Qi Li ◽  
Ying Xie ◽  
Liping Zhang ◽  
Xudong Xiao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Three Dimensional ◽  
Triazole Ring ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution ◽  
Ring Group ◽  
Group Modification ◽  
Special Morphology

Three-dimensional assembly of carbon nitride tube was obtained from supramolecular precursor. The special morphology and triazole ring group modification endowed materials' enhanced photocatalytic hydrogen evolution property (71 mmol g−1 h−1).

Silver Single Atom in Carbon Nitride Catalyst for Highly Efficient Photocatalytic Hydrogen Evolution

2020 ◽  
Vol 132 (51) ◽  
pp. 23312-23316
Author(s):  
Xun‐Heng Jiang ◽  
Long‐Shuai Zhang ◽  
Hai‐Yan Liu ◽  
Dai‐She Wu ◽  
Fei‐Yao Wu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Single Atom ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient

Silver Single Atom in Carbon Nitride Catalyst for Highly Efficient Photocatalytic Hydrogen Evolution

2020 ◽  
Vol 59 (51) ◽  
pp. 23112-23116
Author(s):  
Xun‐Heng Jiang ◽  
Long‐Shuai Zhang ◽  
Hai‐Yan Liu ◽  
Dai‐She Wu ◽  
Fei‐Yao Wu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Single Atom ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient
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