Journal ArticleDOI
Polymeric Graphitic Carbon Nitride as a Heterogeneous Organocatalyst: From Photochemistry to Multipurpose Catalysis to Sustainable Chemistry
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TLDR
The "polymer chemistry" of g-C(3)N(4) is described, how band positions and bandgap can be varied by doping and copolymerization, and how the organic solid can be textured to make it an effective heterogenous catalyst.Abstract:
Polymeric graphitic carbon nitride materials (for simplicity: g-C(3)N(4)) have attracted much attention in recent years because of their similarity to graphene. They are composed of C, N, and some minor H content only. In contrast to graphenes, g-C(3)N(4) is a medium-bandgap semiconductor and in that role an effective photocatalyst and chemical catalyst for a broad variety of reactions. In this Review, we describe the "polymer chemistry" of this structure, how band positions and bandgap can be varied by doping and copolymerization, and how the organic solid can be textured to make it an effective heterogenous catalyst. g-C(3)N(4) and its modifications have a high thermal and chemical stability and can catalyze a number of "dream reactions", such as photochemical splitting of water, mild and selective oxidation reactions, and--as a coactive catalytic support--superactive hydrogenation reactions. As carbon nitride is metal-free as such, it also tolerates functional groups and is therefore suited for multipurpose applications in biomass conversion and sustainable chemistry.read more
Citations
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Journal ArticleDOI
Visible Light Photoredox Catalysis with Transition Metal Complexes: Applications in Organic Synthesis
TL;DR: The conversion of these bench stable, benign catalysts to redox-active species upon irradiation with simple household lightbulbs represents a remarkably chemoselective trigger to induce unique and valuable catalytic processes.
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Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for Artificial Photosynthesis and Environmental Remediation: Are We a Step Closer To Achieving Sustainability?
TL;DR: It is anticipated that this review can stimulate a new research doorway to facilitate the next generation of g-C3N4-based photocatalysts with ameliorated performances by harnessing the outstanding structural, electronic, and optical properties for the development of a sustainable future without environmental detriment.
Journal ArticleDOI
Graphene-Like Carbon Nitride Nanosheets for Improved Photocatalytic Activities
TL;DR: In this article, a top-down thermal oxidation etching of bulk g-C3N4 in air has been shown to improve the photocatalytic activities of the material in terms of OH radical generation and hydrogen evolution.
Journal ArticleDOI
Polymeric Photocatalysts Based on Graphitic Carbon Nitride
TL;DR: The photo-catalytic applications of g-C3N4 -based photocatalysts in the fields of water splitting, CO2 reduction, pollutant degradation, organic syntheses, and bacterial disinfection are reviewed, with emphasis on photocatalysis promoted by carbon materials, non-noble-metal coc atalysts, and Z-scheme heterojunctions.
Journal ArticleDOI
A review on g-C3N4-based photocatalysts
TL;DR: In this paper, the fundamental mechanism of heterogeneous photocatalysis, advantages, challenges and the design considerations of g-C3N4-based photocatalysts are summarized, including their crystal structural, surface phisicochemical, stability, optical, adsorption, electrochemical, photoelectrochemical and electronic properties.
References
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Journal ArticleDOI
Facile synthesis of porous carbon nitride spheres with hierarchical three-dimensional mesostructures for CO2 capture
Qiang Li,Jianping Yang,Dan Feng,Zhangxiong Wu,Qingling Wu,Sung Soo Park,Chang-Sik Ha,Dongyuan Zhao +7 more
TL;DR: In this article, a hierarchical three-dimensional (3-D) mesostructures with small and large mesopores with pore diameters centered at 4.0 and 43 nm, respectively, have been successfully synthesized via a nanocasting approach by using spherical mesoporous cellular silica foams as a hard template, and ethylenediamine and carbon tetrachloride as precursors.
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Gold Nanoparticles Embedded in a Mesoporous Carbon Nitride Stabilizer for Highly Efficient Three‐Component Coupling Reaction
Kasibhatta Kumara Ramanatha Datta,Kasibhatta Kumara Ramanatha Datta,B. V. Subba Reddy,B. V. Subba Reddy,Katsuhiko Ariga,Ajayan Vinu +5 more
TL;DR: The embedded, well-dispersed Au nanopartides are a highly active, selective, and recyclable catalyst for the three-component coupling reaction of benzaldehyde, piperidine, and phenylacetylene for the synthesis of propargylamine.
Journal ArticleDOI
Synthesis of Nitrogen-Rich Carbon Nitride Networks from an Energetic Molecular Azide Precursor
TL;DR: In this paper, the authors showed that the carbon−nitrogen solids have significant sp2 carbon bonding in a conjugated doubly bonded network and showed that these powders have a glassy microstructure with large irregular pores and voids.
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Photocatalytic hydrogen evolution on dye-sensitized mesoporous carbon nitride photocatalyst with magnesium phthalocyanine
TL;DR: Spectral sensitization of a mesoporous graphite carbon nitride photocatalyst was investigated by depositing magnesium phthalocyanine to expand the absorption to wavelengths longer than those of the principal mpg-C(3)N(4), and the obtained action spectra of hydrogen evolution confirm that the introduced MgPc functioned as a photocatalytic sensitizer.
Journal ArticleDOI
Facile One‐Pot Synthesis of Nanoporous Carbon Nitride Solids by Using Soft Templates
TL;DR: Because there are many ways to substitute carbon by nitrogen in graphite in a regular fashion, here the term carbon nitrides is understood to comprise a large family of related compounds (e.g. C3N4, C4N2, C5N, C10N3, and others), various strategies have been adopted to prepare the nitrogen-enriched carbon materials.