Monomer sequence design at two solvent interface enables the synthesis of highly photoactive carbon nitride

Dolai, Susmita; Karjule, Neeta; Azoulay, Adi; Barrio, Jesús

doi:10.1039/c9ra05264j

Cited by 9 publications

(7 citation statements)

References 47 publications

(48 reference statements)

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“…The pyrolysis of cyanuric acid-melamine-creatine supramolecular assembly was performed at 550 °C for 4 h in nitrogen atmosphere. [111] Hollow tubes assemblies transformed to thin, porous nanosheets of g-C 3 N 4 by the introduction of various amounts of creatine (0.05, 0.1, 0.25 % respectively) as shown in the SEM image (Figure 10a-d). Creatine helped to increase the specific surface area of the nanosheets by interlinking cyanuric acid-melamine lattices.…”

Section: Morphology Investigationmentioning

confidence: 96%

“…These observations support the formation of CM supramolecular assembly at the interface of the solvents. [111]…”

Section: Hydrogen Bonding Networkmentioning

confidence: 99%

Section: Figure 9 Sem Images Of G-c 3 N 4 (A) G (Manual) (B) G 1 H (C...mentioning

confidence: 99%

“…Later on, the authors investigated HER from hollow tubular g-C 3 N 4 structure made up of melamine, cyanuric acid, and creatine. [111] Guanidine-like structure from creatine condensation . Reproduced with permission.…”

Section: Visible Light Induced H 2 Generation From Watermentioning

confidence: 99%

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Solvent‐Assisted Synthesis of Supramolecular‐Assembled Graphitic Carbon Nitride for Visible Light Induced Hydrogen Evolution – A Review

et al. 2021

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Many graphitic carbon nitride (g‐C3N4)‐based photocatalysts have attracted a significant interest because of the unique arrangement of carbon and nitrogen atoms. Changeable morphologies with tunable bandgap of g‐C3N4 materials were used in many applications including batteries, photovoltaics, photocatalysts, sensors, etc. This review focuses on the recent progress in the solvent assisted supramolecular‐assembled carbon nitride preparation for visible light induced hydrogen evolution from water. The synthesis involves tailoring the supramolecular assembly from different monomers followed by calcination. Different types of non‐covalent interactions between the monomers have been explained. In addition, the crucial role of solvent has been re‐counted in terms of the alteration of the structural morphology of assemblies. The mechanistic pathways of interaction in the formation of supramolecular assemblies have been also documented by molecular dynamics simulation. Finally, visible light triggered hydrogen evolution has been demonstrated along with discussion on challenges and future research direction.

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Section: Morphology Investigationmentioning

confidence: 96%

“…These observations support the formation of CM supramolecular assembly at the interface of the solvents. [111]…”

Section: Hydrogen Bonding Networkmentioning

confidence: 99%

Section: Figure 9 Sem Images Of G-c 3 N 4 (A) G (Manual) (B) G 1 H (C...mentioning

confidence: 99%

Section: Visible Light Induced H 2 Generation From Watermentioning

confidence: 99%

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Solvent‐Assisted Synthesis of Supramolecular‐Assembled Graphitic Carbon Nitride for Visible Light Induced Hydrogen Evolution – A Review

et al. 2021

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“…As a result, the RhB degradation efficiency of g -CN(1.0) (0.352 min −1 ) was almost 10 times higher than that of the BCN ( Figure 11 c). Inspired by traditional liquid-liquid interfacial polymerization [ 151 ], interfacial supramolecular organization on two non-miscible solvents emerged in the modification of CN structure [ 152 , 153 ]. The choice of solvents plays an important role in the formation of supramolecular assembly at the interface of the solvents.…”

Section: Pore Modifications Over G -C 3 Nmentioning

confidence: 99%

g-C3N4: Properties, Pore Modifications, and Photocatalytic Applications

et al. 2021

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Graphitic carbon nitride (g-C3N4), as a polymeric semiconductor, is promising for ecological and economical photocatalytic applications because of its suitable electronic structures, together with the low cost, facile preparation, and metal-free feature. By modifying porous g-C3N4, its photoelectric behaviors could be facilitated with transport channels for photogenerated carriers, reactive substances, and abundant active sites for redox reactions, thus further improving photocatalytic performance. There are three types of methods to modify the pore structure of g-C3N4: hard-template method, soft-template method, and template-free method. Among them, the hard-template method may produce uniform and tunable pores, but requires toxic and environmentally hazardous chemicals to remove the template. In comparison, the soft templates could be removed at high temperatures during the preparation process without any additional steps. However, the soft-template method cannot strictly control the size and morphology of the pores, so prepared samples are not as orderly as the hard-template method. The template-free method does not involve any template, and the pore structure can be formed by designing precursors and exfoliation from bulk g-C3N4 (BCN). Without template support, there was no significant improvement in specific surface area (SSA). In this review, we first demonstrate the impact of pore structure on photoelectric performance. We then discuss pore modification methods, emphasizing comparison of their advantages and disadvantages. Each method’s changing trend and development direction is also summarized in combination with the commonly used functional modification methods. Furthermore, we introduce the application prospects of porous g-C3N4 in the subsequent studies. Overall, porous g-C3N4 as an excellent photocatalyst has a huge development space in photocatalysis in the future.

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Bismuthiol‐Mediated Synthesis of Ordered Carbon Nitride Nanosheets with Enhanced Photocatalytic Performance

et al. 2020

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The facile synthesis of ordered carbon nitride (CN) sheets with excellent photoactivity for hydrogen production and pollutant degradation is reported. To direct the synthesis of CN materials, sulfur‐based supramolecular assemblies composed of bismuthiol and melamine are utilized. Upon calcination at high temperature, CN materials with tunable morphology, porosity, and photophysical properties are obtained. The influence of several parameters including solvents, solubility, and monomer concentration are studied to determine their effect on the supramolecular assemblies and on the resulting CN properties and photoactivity. The best CN, prepared in dimethyl sulfoxide as the solvent, exhibits high specific surface area, beneficial electronic structure, and excellent photocatalytic activity for the hydrogen evolution reaction and the degradation of rhodamine B dye.

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Monomer sequence design at two solvent interface enables the synthesis of highly photoactive carbon nitride

Abstract: The design of a supramolecular assembly in a two solvent interface is used to tailor the morphology, chemical and electronic properties of carbon nitride. This approach opens many opportunities for the design of C–N based materials.

Cited by 9 publications

References 47 publications

Solvent‐Assisted Synthesis of Supramolecular‐Assembled Graphitic Carbon Nitride for Visible Light Induced Hydrogen Evolution – A Review

Solvent‐Assisted Synthesis of Supramolecular‐Assembled Graphitic Carbon Nitride for Visible Light Induced Hydrogen Evolution – A Review

g-C3N4: Properties, Pore Modifications, and Photocatalytic Applications

Bismuthiol‐Mediated Synthesis of Ordered Carbon Nitride Nanosheets with Enhanced Photocatalytic Performance

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