Progress and Prospects of Non-Metal Doped Graphitic Carbon Nitride for Improved Photocatalytic Performances

2020 ◽  
Vol 36 (3) ◽  
pp. 1905080-0 ◽  
Author(s):  
Yiqing Wang ◽  
◽  
Shaohua Shen
Keyword(s):  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Performances ◽  
Metal Doped

Metal Doped-C3N4/Fe2O4: Efficient and Versatile Heterogenous Catalysts for Organic Transformations

2019 ◽  
Vol 23 (12) ◽  
pp. 1284-1306
Author(s):  
Vijai K. Rai ◽  
Fooleswar Verma ◽  
Suhasini Mahata ◽  
Smita R. Bhardiya ◽  
Manorama Singh ◽  
...  
Keyword(s):  
Ring Opening ◽  
Carbon Nitride ◽  
Addition Reaction ◽  
High Surface ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Organic Transformations ◽  
Reduction Reactions ◽  
Activation Reaction ◽  
Metal Doped

The polymeric graphitic carbon nitride (g-C3N4) has been one of the interesting earth abundant elements. Though g-C3N4 finds application as a photocatalyst, its photocatalytic behaviour is limited because of low efficiency, mainly due to rapid charge recombination. To overcome this problem, several strategies have been developed including doping of metal/non-metal in the cavity of g-C3N4. Moreover, the CoFe2O4 NPs have been used in many organic transformations because of its high surface area and easy separation due to its magnetic nature. This review describes the role of cobalt ferrite as magnetic nanoparticles and metal-doped carbon nitride as efficient heterogeneous catalysts for new carbon-carbon and carbon-hetero atom bond formation followed by heterocyclization. Reactions which involved new catalysts for selective activation of readily available substrates has been reported herein. Since nanoparticles enhance the reactivity of catalyst due to higher catalytic area, they have been employed in various reactions such as addition reaction, C-H activation reaction, coupling reaction, cyclo-addition reaction, multi-component reaction, ring-opening reaction, oxidation reaction and reduction reactions etc. The driving force for choosing this topic is based-on huge number of good publications including different types of spinels/metal doped-/graphitic carbon nitride reported in the literature and due to interest of synthetic community in recent years. This review certainly will represent the present status in organic transformation and for exploring further their catalytic efficiency to new organic transformations involving C-H activation reaction through coupling, cyclo-addition, multi-component, ring-opening, oxidation and reduction reactions.

scholarly journals Photoelectrochemical Studies on Metal-Doped Graphitic Carbon Nitride Nanostructures under Visible-Light Illumination

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 983 ◽  
Author(s):  
I. Neelakanta Reddy ◽  
N. Jayashree ◽  
V. Manjunath ◽  
Dongseob Kim ◽  
Jaesool Shim
Keyword(s):  
Charge Transfer ◽  
Visible Light ◽  
Light Absorption ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Electron Hole ◽  
Photoelectrochemical Activity ◽  
Catalytic Sites ◽  
Metal Doped

Recently, the engineering of optical bandgaps and morphological properties of graphitic carbon nitride (g-C3N4) has attracted significant research attention for photoelectrodes and environmental remediation owing to its low-cost synthesis, availability of raw materials, and thermal physical–chemical stability. However, the photoelectrochemical activity of g-C3N4-based photoelectrodes is considerably poor due to their high electron–hole recombination rate, poor conductivity, low quantum efficiency, and active catalytic sites. Synthesized Ni metal-doped g-C3N4 nanostructures can improve the light absorption property and considerably increase the electron–hole separation and charge transfer kinetics, thereby initiating exceptionally enhanced photoelectrochemical activity under visible-light irradiation. In the present study, Ni dopant material was found to evince a significant effect on the structural, morphological, and optical properties of g-C3N4 nanostructures. The optical bandgap of the synthesized photoelectrodes was varied from 2.53 to 2.18 eV with increasing Ni dopant concentration. The optimized 0.4 mol% Ni-doped g-C3N4 photoelectrode showed a noticeably improved six-fold photocurrent density compared to pure g-C3N4. The significant improvement in photoanode performance is attributable to the synergistic effects of enriched light absorption, enhanced charge transfer kinetics, photoelectrode/aqueous electrolyte interface, and additional active catalytic sites for photoelectrochemical activity.

Metal-doped graphitic carbon nitride (g-C3N4) as selective NO2 sensors: A first-principles study

2018 ◽  
Vol 455 ◽  
pp. 1116-1122 ◽  
Author(s):  
Hong-ping Zhang ◽  
Aijun Du ◽  
Neha S. Gandhi ◽  
Yan Jiao ◽  
Yaping Zhang ◽  
...  
Keyword(s):  
First Principles ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
First Principles Study ◽  
Metal Doped

Graphitic carbon nitride–BiVO4heterojunctions: simple hydrothermal synthesis and high photocatalytic performances

RSC Advances ◽  
2014 ◽  
Vol 4 (8) ◽  
pp. 4187-4193 ◽  
Author(s):  
Yanlong Tian ◽  
Binbin Chang ◽  
Zhichong Yang ◽  
Baocheng Zhou ◽  
Fengna Xi ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Performances

Rare Earth Metal doped Nickel Catalysts Supported on Exfoliated Graphitic Carbon Nitride for Highly Selective CO and CO2 Methanation

2021 ◽  
pp. 151321
Author(s):  
Khairul Naim Ahmad ◽  
Wan Nor Roslam Wan Isahak ◽  
Masli Irwan Rosli ◽  
Muhammad Rahimi Yusop ◽  
Mohammad B. Kassim ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Carbon Nitride ◽  
Earth Metal ◽  
Nickel Catalysts ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Co2 Methanation ◽  
Metal Doped ◽  
Co And Co2 Methanation
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