Probing the effect of P-doping in polymeric carbon nitride on CO2 photocatalytic reduction

2020 ◽  
Vol 49 (44) ◽  
pp. 15750-15757
Author(s):  
Yangkun Guo ◽  
Min Wang ◽  
Jianjian Tian ◽  
Meng Shen ◽  
Lingxia Zhang ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Reduction Reaction ◽  
Photocatalytic Reduction ◽  
Polymeric Carbon

P-Doping promotes the generation and conversion of CO2− intermediate on polymeric carbon nitride photocatalysts during CO2 reduction reaction.

Carbon nitride derivatives as photocatalysts for the CO2 reduction reaction: computational study

2021 ◽  
Vol 23 (5) ◽  
pp. 3401-3406
Author(s):  
Siru Li ◽  
Yu Tian ◽  
Likai Yan ◽  
Zhongmin Su
Keyword(s):  
Carbon Nitride ◽  
Computational Study ◽  
Co2 Reduction ◽  
Environmental Problems ◽  
Reduction Reaction ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Promising Strategy ◽  
Co2 Reduction Reaction

Photocatalytic reduction of CO2 to hydrocarbons is considered to be a promising strategy to solve the energy crisis and environmental problems.

Synthesis and optimization of the trimesic acid modified polymeric carbon nitride for enhanced photocatalytic reduction of CO2

2019 ◽  
Vol 548 ◽  
pp. 197-205 ◽  
Author(s):  
Asif Hayat ◽  
Javid Khan ◽  
Mati Ur Rahman ◽  
Sunilkumar Baburao Mane ◽  
Wasim Ullah Khan ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Photocatalytic Reduction ◽  
Trimesic Acid ◽  
Reduction Of Co2 ◽  
Polymeric Carbon

scholarly journals Mechanistic analysis of multiple processes controlling solar-driven H2O2 synthesis using engineered polymeric carbon nitride

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yubao Zhao ◽  
Peng Zhang ◽  
Zhenchun Yang ◽  
Lina Li ◽  
Jingyu Gao ◽  
...  
Keyword(s):  
Active Sites ◽  
Carbon Nitride ◽  
Separation Efficiency ◽  
Structural Features ◽  
Reduction Reaction ◽  
Transformation Process ◽  
Photon Absorption ◽  
Apparent Quantum Yield ◽  
Dioxygen Reduction ◽  
Polymeric Carbon

AbstractSolar-driven hydrogen peroxide (H2O2) production presents unique merits of sustainability and environmental friendliness. Herein, efficient solar-driven H2O2 production through dioxygen reduction is achieved by employing polymeric carbon nitride framework with sodium cyanaminate moiety, affording a H2O2 production rate of 18.7 μmol h −1 mg−1 and an apparent quantum yield of 27.6% at 380 nm. The overall photocatalytic transformation process is systematically analyzed, and some previously unknown structural features and interactions are substantiated via experimental and theoretical methods. The structural features of cyanamino group and pyridinic nitrogen-coordinated soidum in the framework promote photon absorption, alter the energy landscape of the framework and improve charge separation efficiency, enhance surface adsorption of dioxygen, and create selective 2e− oxygen reduction reaction surface-active sites. Particularly, an electronic coupling interaction between O2 and surface, which boosts the population and prolongs the lifetime of the active shallow-trapped electrons, is experimentally substantiated.

Heteroatom engineering of polymeric carbon nitride heterojunctions for boosting photocatalytic reduction of hexavalent uranium

2020 ◽  
Vol 5 (4) ◽  
pp. 882-889 ◽  
Author(s):  
Fengtao Yu ◽  
Zhiwu Yu ◽  
Zhenzhen Xu ◽  
Jianbo Xiong ◽  
Qiangwen Fan ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Carbon Nitride ◽  
Photocatalytic Reduction ◽  
Hexavalent Uranium ◽  
Polymeric Carbon

Two push–pull conjugated polymers termed PFB and PCB with different donors unit are innovatively applied to fabricate PFB/g-C3N4 and PCB/g-C3N4 heterojunctions for efficient photocatalytic reduction of uranium.

Cu supported on polymeric carbon nitride for selective CO2 reduction into CH4: a combined kinetics and thermodynamics investigation

2019 ◽  
Vol 7 (28) ◽  
pp. 17014-17021 ◽  
Author(s):  
Jieyuan Li ◽  
Ping Yan ◽  
Kanglu Li ◽  
Junjie You ◽  
Hong Wang ◽  
...  
Keyword(s):  
Catalytic Reaction ◽  
Carbon Nitride ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Kinetics And Thermodynamics ◽  
Polymeric Carbon

Metal-based cocatalysts have been widely applied in the photocatalytic CO2 reduction reaction (CO2RR) and the integration of cocatalysts/semiconductors is expected to enhance the selectivity of the catalytic reaction.

scholarly journals Hydroxyl group modified polymeric carbon nitride with highly selective hydrogenation of nitrobenzene to N-phenylhydroxylamine under visible light

2021 ◽  
Author(s):  
Linjuan Pei ◽  
Hao Tan ◽  
Meixian Liu ◽  
Ruiyi Wang ◽  
Xianmo Gu ◽  
...  
Keyword(s):  
Visible Light ◽  
Surface Properties ◽  
Selective Hydrogenation ◽  
Carbon Nitride ◽  
Reduction Reaction ◽  
Hydroxyl Group ◽  
Nitrobenzene Reduction ◽  
Polymeric Carbon

Regulating the surface properties of catalysts to control the selectivity of reaction is fascinating. The bulk polymeric carbon nitride exhibited poor N-phenylhydroxylamine yield in nitrobenzene reduction reaction mainly due to...

Dissolution and Performing Homogeneous Photocatalysis of Polymeric Carbon Nitride

2018 ◽  
Author(s):  
Chaofeng Huang ◽  
Jing Wen ◽  
Yanfei Shen ◽  
Fei He ◽  
Li Mi ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Carbon Nitride ◽  
Heterogeneous Catalysts ◽  
Methane Sulfonic Acid ◽  
Environment Friendly ◽  
The Poor ◽  
Catalytic Sites ◽  
Homogeneous Photocatalysis ◽  
Polymeric Carbon ◽  
First Time

<a></a><a>As a metal-free conjugated polymer, carbon nitride (CN) has attracted tremendous attention as heterogeneous (photo)catalysts. </a><a></a><a>By following prototype of enzymes, making all catalytic sites of accessible via homogeneous reactions is a promising approach toward maximizing CN activity, but hindered due to </a><a></a><a>the poor insolubility of CN</a>. Herein, we report the dissolution of CN in environment-friendly methane sulfonic acid and the homogeneous photocatalysis driven by CN for the first time with the activity boosted up to 10-times, comparing to the heterogeneous counterparts. Moreover, facile recycling and reusability, the <a>hallmark</a> of heterogeneous catalysts, were kept for the homogeneous CN photocatalyst via reversible precipitation using poor solvents. It opens new vista of CN in homogeneous catalysis and offers a successful example of polymeric catalysts in bridging gaps of homo/heterogeneous catalysis.

Sign in / Sign up

Export Citation Format

Share Document