polymeric carbon nitride
A metal-free polymeric photocatalyst for hydrogen
· A polymeric carbon nitride photocatalyst that is thermally and chemically stable is now shown to produce hydrogen from water even in the absence of noble metal catalysts.
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Polymeric graphitic carbon nitride–barium titanate
· Absorption capability of barium titanate (BaTiO3) was enhanced by coupling it with graphitic carbon nitride (g-C3N4) a polymeric semiconducting material. g-C3N4–BaTiO3 nanocomposite was prepared with different weight percentage of g-C3N4 (3–18 ) by simple solution method and was further characterized for analysing the properties of prepared material like structural and morphological
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Polymeric Carbon Nitrides Semiconducting Properties and
As an analogue of graphite graphitic carbon nitride polymers also possess a stacked two-dimensional structure which could be regarded as N-substituted graphite in a regular manner.The history of carbon nitride polymers could trace back to 1834 when Liebig firstly prepared "melon " a carbon nitride derivative but their potential applications have only emerged in the very recent years.
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Molecular Junctions on Polymeric Carbon Nitrides with
To promote interfacial communication between PS and MC a proof-of-concept method was developed for the combination of polymeric carbon nitride (PCN) PS with bipyridine cobalt Co(bpy) 3 2 MC by covalent bonds creating molecular junctions to promote interfacial electron transfer as confirmed by transient photoluminescence lifetime and
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Phosphorus-doped polymeric carbon nitride nanosheets for
· The metal-free polymeric carbon nitride (CN) has been widely used as an efficient photocatalyst for the photocatalytic hydrogen evolution reaction (HER). However to date the solar to hydrogen conversion efficiency of the CN-based photocatalysts is still low.
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Phosphorus-doped polymeric carbon nitride nanosheets for
· The metal-free polymeric carbon nitride (CN) has been widely used as an efficient photocatalyst for the photocatalytic hydrogen evolution reaction (HER). However to date the solar to hydrogen conversion efficiency of the CN-based photocatalysts is still low.
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Crystal structure of polymeric carbon nitride and the
· Polymeric carbon nitride (PCN) stands for a very remarkable class of materials. It reveals photocatalytic activity both as pristine powder and as a nanocrystalline film in a heterojunction photocathode 1–3 . Furthermore PCN only consists of abundant elements can be synthesized via a straightforward scalable process and offers a high
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Emerging polymeric carbon nitride Z-scheme systems for
Polymeric carbon nitride (g-C 3 N 4)-based Z-scheme photocatalysts have attracted widespread attention owing to their notable light-harvesting capability spatially separated reductive and oxidative active sites and strong redox ability.This review article presents a panorama of the latest developments of g-C 3 N 4-based Z-scheme photocatalysts for various applications.
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Layered Heterostructures of Ultrathin Polymeric Carbon
· The rational construction of heterostructures by using layered semiconductors with two-dimensional (2D) nanosheet configurations is promising to improve the efficiency of CO 2 photoreduction. Herein the fabrication of layered heterojunction photocatalysts (PCN/ZnIn 2 S 4) by in situ growth of 2D ZnIn 2 S 4 nanosheets on the surfaces of ultrathin polymeric carbon nitride (PCN) layers is
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Photocatalytic CO2 Reduction by Mesoporous Polymeric
In this paper a sol–gel derived mesoporous polymeric carbon nitride has been investigated as a photocatalyst for CO 2 photocatalytic reduction. Noble-metal Pt nanoparticles were deposited on carbon nitride (sg-CN) in order to investigate the performance of both Pt-sg-CN and sg-CN for photocatalytic CO 2 reduction. Physicochemical properties of prepared nanocomposites were comprehensively
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Polymeric Carbon Nitride and Metal Oxide Nanoparticles
· graphitic carbon nitride (g-C3N4) 10 polymeric carbon nitride (PCN) or melon 11 . This compound is a product of melamine thermal condensation possesses an optical band gap of 2.7 eV and has great chemical stability 10 . The polymeric organic semiconductor PCN was reported mainly as
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Recent Advances of Graphitic Carbon Nitride-Based
Fig. 2 Crystal structure and optical properties of graphitic carbon nitride. a Schematic diagram of a perfect graphitic carbon nitride sheet constructed from melem units. b Experimental XRD pattern of the polymeric carbon nitride revealing a graphitic structure with an interplanar
Get PricePolymeric graphitic carbon nitride as a heterogeneous
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 tha
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Polymeric Carbon Nitrides Semiconducting Properties and
As an analogue of graphite graphitic carbon nitride polymers also possess a stacked two-dimensional structure which could be regarded as N-substituted graphite in a regular manner.The history of carbon nitride polymers could trace back to 1834 when Liebig firstly prepared "melon " a carbon nitride derivative but their potential applications have only emerged in the very recent years.
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Conversion of Alumina to Aluminum Nitride Using Polymeric
· Polymeric carbon nitride which was synthesized by polymerization of dicyandiamide at 500°C was used as a nitridation reagent in the conversion of δ-alumina (δ-Al 2 O 3) to aluminum nitride (AlN).The products obtained at various reaction temperatures were characterized by powder X-ray diffraction 27 Al magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy Raman
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Polymers Free Full-Text Polymeric Carbon Nitride
Polymeric graphitic carbon nitride (g-CN) is a potential replacement and has striking advantages such as low cost non-toxicity and ease of tenability . g-CN is ideally composed of carbon and nitrogen in tri-s-triazine repeating units to form a conjugated polymer structure and can be synthesized from simple nitrogen-rich commodity molecules
Get PriceFunctional group defect design in polymeric carbon nitride
· Polymeric carbon nitride especially heptazine-based polymer melon (also known as graphitic carbon nitride g-C 3 N 4) is one of the hottest materials in photocatalysts due to its richness in natural resources tunability attractive band structure excellent photochemical stability and low cost which has been widely applied in the fields of
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Polymeric Graphitic Carbon Nitride Doped with CuO
· Polymeric graphitic carbon nitride (g-C 3 N 4) a "metal free" n-type metal oxide semiconductor with band gap of 2.8 eV has shown immense properties for H 2 or O 2 evolution via water splitting and good chemical stability in photocatalysis 18 19 .
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Polymeric graphitic carbon nitride as a heterogeneous
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 tha
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Semiconductor polymeric graphitic carbon nitride
Semiconductor polymeric graphitic carbon nitride (g-C3N4) photocatalysts have attracted dramatically growing attention in the field of the visible-light-induced hydrogen evolution reaction (HER) because of their facile synthesis easy functionalization attractive electronic band structure high physicochemical stability and photocatalytic activity.
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Graphitic Carbon Nitride Nano-Based Particle
· Polymeric graphitic carbon nitride (g-C 3 N 4) has become the prime center for consideration in photocatalysis research . g-C 3 N 4 is a visible-light-response element with band gap of 2.7 eV and the energy location of CB and VB is at − 1.1 and 1.6 eV via normal hydrogen electrode respectively Wang et al. 2009 .
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Highly dispersed molybdenum-embedded
· Mo-embedded polymeric carbon nitride achieved the low recombination of photogenerated carriers the fast photogenerated electron transfer and the large specific surface area. Meanwhile the embedding of Mo reduced the bandgap of polymeric carbon nitride and increased its valence band position thereby improving the visible light absorption and oxidation ability.
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Phosphorus-doped polymeric carbon nitride nanosheets for
· The metal-free polymeric carbon nitride (CN) has been widely used as an efficient photocatalyst for the photocatalytic hydrogen evolution reaction (HER). However to date the solar to hydrogen conversion efficiency of the CN-based photocatalysts is still low.
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Polymeric Carbon Nitride and Metal Oxide Nanoparticles
· graphitic carbon nitride (g-C3N4) 10 polymeric carbon nitride (PCN) or melon 11 . This compound is a product of melamine thermal condensation possesses an optical band gap of 2.7 eV and has great chemical stability 10 . The polymeric organic semiconductor PCN was reported mainly as
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Asymmetric structure engineering of polymeric carbon
Among them polymeric graphitic carbon nitride (g-C 3 N 4) has been recognized as a promising low-cost metal-free photocatalyst due to the favorable band positions and flexible manipulability in the atoms and electron structures which was widely investigated in water splitting CO 2 reduction nitrogen fixation H 2 O 2 production and other fields .
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Graphitic Carbon Nitride Nano-Based Particle
· Polymeric graphitic carbon nitride (g-C 3 N 4) has become the prime center for consideration in photocatalysis research . g-C 3 N 4 is a visible-light-response element with band gap of 2.7 eV and the energy location of CB and VB is at − 1.1 and 1.6 eV via normal hydrogen electrode respectively Wang et al. 2009 .
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Photophysics of polymeric carbon nitride An optical
Photophysics of polymeric carbon nitride An optical quasimonomer Polymeric carbon nitrides (PCN) have been successfully applied for photocatalytic hydrogen and oxygen production from water under visible light both as pristine powder1 and as nanocrystalline films in heterojunction photocathodes.2
Get PricePolymeric Carbon Nitride and Metal Oxide Nanoparticles
· graphitic carbon nitride (g-C3N4) 10 polymeric carbon nitride (PCN) or melon 11 . This compound is a product of melamine thermal condensation possesses an optical band gap of 2.7 eV and has great chemical stability 10 . The polymeric organic semiconductor PCN was reported mainly as
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Layered Heterostructures of Ultrathin Polymeric Carbon
· The rational construction of heterostructures by using layered semiconductors with two-dimensional (2D) nanosheet configurations is promising to improve the efficiency of CO 2 photoreduction. Herein the fabrication of layered heterojunction photocatalysts (PCN/ZnIn 2 S 4) by in situ growth of 2D ZnIn 2 S 4 nanosheets on the surfaces of ultrathin polymeric carbon nitride (PCN) layers is
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