scholarly journals Carbon nitride as a heterogeneous visible-light photocatalyst for the Minisci reaction and coupling to H2 production

2019 ◽  
Vol 55 (93) ◽  
pp. 14007-14010 ◽  
Author(s):  
Arjun Vijeta ◽  
Erwin Reisner
Keyword(s):  
Visible Light ◽  
Electron Acceptor ◽  
Carbon Nitride ◽  
Atmospheric Oxygen ◽  
H2 Production ◽  
Nitride Powder ◽  
Co Catalyst ◽  
Visible Light Photocatalyst ◽  
Type Coupling

Cyanamide functionalised carbon nitride powder is reported as a photocatalyst for direct Minisci-type coupling of heteroarenes with ethers, alcohols, and amides using atmospheric oxygen or a hydrogen evolving co-catalyst as an electron acceptor.

Facile two-step treatment of carbon nitride for preparation of highly efficient visible-light photocatalyst

2018 ◽  
Vol 227 ◽  
pp. 541-547 ◽  
Author(s):  
Ningxin Jiang ◽  
Hongjia Wang ◽  
Yidan Luo ◽  
Shuohan Yu ◽  
Annai Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Carbon Nitride ◽  
Visible Light Photocatalyst ◽  
Highly Efficient

scholarly journals Ultrathin Ni(ii)-based coordination polymer nanosheets as a co-catalyst for promoting photocatalytic H2-production

2019 ◽  
Vol 55 (46) ◽  
pp. 6499-6502 ◽  
Author(s):  
Zhi-Qiang Jiang ◽  
Xing-Liang Chen ◽  
Jin Lu ◽  
Yu-Feng Li ◽  
Tian Wen ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Coordination Polymer ◽  
Visible Light ◽  
H2 Production ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Production ◽  
Co Catalysts ◽  
Production Activity ◽  
Visible Light Photocatalytic

The Ni(ii) coordination polymer nanosheets were successfully exfoliated, which can be used as co-catalysts (Ni-CPNS@CdS). The optimized Ni-CPNS@CdS catalyst showed a super high visible-light photocatalytic hydrogen production activity.

Higher dye degradation using a visible-light photocatalyst made of mesoporous graphitic carbon nitride prepared with the Tween-40 surfactant

2020 ◽  
Vol 18 (4) ◽  
pp. 1413-1422 ◽  
Author(s):  
Barbara Ronara Machado de Lima ◽  
Nilson Machado Pontes do Nascimento ◽  
José Roberto Zamian ◽  
Carlos Emmerson F. da Costa ◽  
Luis Adriano Santos do Nascimento ◽  
...  
Keyword(s):  
Visible Light ◽  
Carbon Nitride ◽  
Dye Degradation ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Visible Light Photocatalyst ◽  
Tween 40

Porous P-doped graphitic carbon nitride nanosheets for synergistically enhanced visible-light photocatalytic H2 production

2015 ◽  
Vol 8 (12) ◽  
pp. 3708-3717 ◽  
Author(s):  
Jingrun Ran ◽  
Tian Yi Ma ◽  
Guoping Gao ◽  
Xi-Wen Du ◽  
Shi Zhang Qiao
Keyword(s):  
Visible Light ◽  
Quantum Efficiency ◽  
Carbon Nitride ◽  
H2 Production ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Production Activity ◽  
Carbon Nitride Nanosheets ◽  
Visible Light Photocatalytic

Porous P-doped g-C3N4 nanosheets prepared by combining P doping and thermal exfoliation exhibit a high visible-light photocatalytic H2-production activity of 1596 μmol h−1 g−1 and a quantum efficiency of 3.56% at 420 nm.

scholarly journals Construction of K+ ions gradient in crystalline carbon nitride to accelerate charge separation for efficient visible light H2 production

2021 ◽  
Author(s):  
Guoqiang Zhang ◽  
Yangsen Xu ◽  
Chuan-Xin He ◽  
Yongliang Li ◽  
Xiangzhong Ren ◽  
...  
Keyword(s):  
Visible Light ◽  
Driving Force ◽  
Carbon Nitride ◽  
Photocatalytic Performance ◽  
H2 Production ◽  
H2 Evolution ◽  
Concentration Gradients ◽  
Diffusion Controlled ◽  
Activity Enhancement ◽  
First Time

Abstract Like most of the recent reported semiconductor photocatalysts, the sluggish dynamic charges transfer and separation caused by weak driving force still restricts the further improvement of photocatalytic performance in crystalline carbon nitride (CCN). Here, we successfully prepared a series of heptazine-based K+ implanted CCN (KCN) for the first time, where the K+ ions concentration was gradiently inserted through controlling its diffusion from the surface to bulk in carbon nitride (CN). As a powerful driving force, the built-in electric field (BIEF) induced by this concentration gradient, greatly accelerates the drift movement and the transport from bulk to the surface, as well as the separation of photogenerated carriers. Consequently, the KCN with optimized BIEF displays a ～34 times promotion than original CN for visible-light H2 evolution. Such a high activity enhancement factor is at a relatively good level in reported CCN. Our proposed strategy to induce BIEF production by constructing concentration gradients through thermodynamically feasible diffusion controlled solid-state reaction, can be adopted to build other efficient photocatalytic systems.

Polycondensation of guanidine hydrochloride into a graphitic carbon nitride semiconductor with a large surface area as a visible light photocatalyst

2014 ◽  
Vol 4 (9) ◽  
pp. 3235-3243 ◽  
Author(s):  
Lei Shi ◽  
Lin Liang ◽  
Fangxiao Wang ◽  
Jun Ma ◽  
Jianmin Sun
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Recombination Rate ◽  
Carbon Nitride ◽  
Guanidine Hydrochloride ◽  
Large Surface Area ◽  
Graphitic Carbon Nitride ◽  
Visible Light Photocatalyst ◽  
Nitride Semiconductor

g-C3N4 prepared from guanidine hydrochloride exhibited a large surface area and a reduced recombination rate of electrons and holes, leading to improved photocatalytic activity for degrading RhB under visible light.

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