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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Enhanced visible light photocatalytic performance of g-C3N4 photocatalysts co-doped with iron and phosphorus
TL;DR: In this paper, the preparation of Fe and P co-doped g-C3N4 was described, using dicyandiamide monomer, ferric nitrate, and diammonium hydrogen phosphate as precursor.
Journal ArticleDOI
Engineering the nanoarchitecture and texture of polymeric carbon nitride semiconductor for enhanced visible light photocatalytic activity
TL;DR: The enhanced crystallinity, reduced layer thickness, high surface area, large pore volume, enlarged band gap, and reduced number of defects were responsible for the activity enhancement of g-C3N4 sample treated for a longer time.
Journal ArticleDOI
Graphene-analogue carbon nitride: novel exfoliation synthesis and its application in photocatalysis and photoelectrochemical selective detection of trace amount of Cu²⁺.
Hui Xu,Jia Yan,Xiaojie She,Li Xu,Jiexiang Xia,Yuanguo Xu,Yanhua Song,Liying Huang,Huaming Li +8 more
TL;DR: Graphene-analogue carbon nitride was synthesized by high-yield, large-scale thermal exfoliation from the graphitic C₃N₄-based intercalation compound and had a new features that could make it suitable as a sensor for Cu(2+) determination in water environment.
Journal ArticleDOI
In-situ growth of CdS quantum dots on g-C3N4 nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation
Shaowen Cao,Yupeng Yuan,Yupeng Yuan,Jun Fang,Mohammad Mehdi Shahjamali,Freddy Yin Chiang Boey,James Barber,James Barber,Say Chye Joachim Loo,Can Xue +9 more
TL;DR: In this article, a well dispersed CdS quantum dots were successfully grown in-situ on g-C3N4 nanosheets through a solvothermal method involving dimethyl sulfoxide.
Journal ArticleDOI
Recent developments of doped g-C3N4 photocatalysts for the degradation of organic pollutants
TL;DR: In this article, a graphitic carbon nitride (g-C3N4), with a moderate band gap (∼2.7 eV), high chemical and thermal stability, has been the hotspot in environmental photocatalysis.
References
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Journal ArticleDOI
A metal-free polymeric photocatalyst for hydrogen production from water under visible light
Xinchen Wang,Kazuhiko Maeda,Arne Thomas,Kazuhiro Takanabe,Gang Xin,Johan M. Carlsson,Kazunari Domen,Markus Antonietti +7 more
TL;DR: It is shown that an abundant material, polymeric carbon nitride, can produce hydrogen from water under visible-light irradiation in the presence of a sacrificial donor.
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Heterogeneous photocatalyst materials for water splitting
Akihiko Kudo,Yugo Miseki +1 more
TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
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Synthesis of transportation fuels from biomass: chemistry, catalysts, and engineering.
TL;DR: Hydrogen Production by Water−Gas Shift Reaction 4056 4.1.
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Nitrogen-doped carbon nanotube arrays with high electrocatalytic activity for oxygen reduction.
TL;DR: It is reported that vertically aligned nitrogen-containing carbon nanotubes (VA-NCNTs) can act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover effect than platinum for oxygen reduction in alkaline fuel cells.
Journal ArticleDOI
Ionic liquid (molten salt) phase organometallic catalysis.
TL;DR: The advent of water-soluble organometallic complexes, especially those based on sulfonated phosphorus-containing ligands, has enabled various biphasic catalytic reactions to be conducted on an industrial scale and might combine the advantages of both homogeneous and heterogeneous catalysis.