Face-to-Face Interfacial Assembly of Ultrathin g-C3N4 and Anatase TiO2 Nanosheets for Enhanced Solar Photocatalytic Activity

Gu, Wenli; Lu, Fei-Xue; Wang, Chao; Kuga, Shigenori; Wu, Li‐Zhu; Huang, Yong; Wu, Min

doi:10.1021/acsami.7b10010

Cited by 163 publications

(76 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When both g‐C 3 N 4 and TiO 2 are reduced to nanosheets, the intimate and larger contact area between them further improves the rate of electron–hole separation. Moreover, as Figure a shows, the interfacial interaction also reduces the bandgap of TiO 2 in the surface‐to‐surface heterojunction from 3.3 to 2.91 eV, extending the light absorption range of TiO 2 nanosheets …”

Section: Interactions Between 2d Tmos and Substrates/2d Materialsmentioning

confidence: 95%

“…a) Photogeneration of H 2 over 2D TiO 2 ‐g‐C 3 N 4 nanosheets with the initial g‐C 3 N 4 dosage of 70 (2D TCN‐A‐70) and anatase TiO 2 nanosheets (TiO 2 ‐A) photocatalysts under UV−vis light irradiation. Reproduced with permission . Copyright 2017, American Chemical Society.…”

Section: Interactions Between 2d Tmos and Substrates/2d Materialsmentioning

confidence: 99%

“…As discussed, the interfacial interaction of 2D functional materials with substrates or 2D materials is of importance for applications . Zavabeti et al synthesized 2D HfO 2 sheets with a minimum thickness of ≈0.5 nm and found that the HfO 2 nanosheets have a large dielectric constant of ≈39 and a wide bandgap of ≈6 eV .…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

See 2 more Smart Citations

Atomically Thin 2D Transition Metal Oxides: Structural Reconstruction, Interaction with Substrates, and Potential Applications

Yang

Song

Callsen

et al. 2018

Adv Materials Inter

122

View full text Add to dashboard Cite

Most of the large variety of 2D materials are derived from their parent van der Waals (vdWs) crystals, thus their atomic struc tures are identical to the bulk counterparts with some minor lattice constant differ ence due to the reduced dimensionality and vanished interlayer interaction. Simi larly, some 2D monolayers, of which a typical example would be silicene, [10] stem from bulk materials with covalent bonds. Although their bonding may significantly change (silicene: sp 2 ; bulk silicon: sp 3 ) when they go from the bulk material to the 2D monolayer, their atomic structures are analogous. However, a slight atomic relaxation may occur in order to balance the reduced bonding coordination in the 2D forms. Therefore, in these cases, the determination of the 2D atomic structures is quite straightforward.In contrast, most metal oxides feature strong interlayer ionic bonds. The lack of a strong interlayer interaction in their 2D forms usually introduces dangling bonds, leading to strong surface polarization which induces surface instability of 2D metal oxides. Pronounced lattice relaxation, prominent struc tural reconstruction and substrate effects have been identified as the main mechanisms for compensating such strong sur face polarization in 2D metal oxides, as have been observed for a Pd 5 O 4 overlayer on Pd(111), [22] a strained PdO(101) layer on Pd (100), [23] a Ag 1.83 O trilayer on Ag(111), [24] a RhO 2 trilayer on Rh(111), [25] multiple phases of 2D Mn oxides on Pd(100), [26] and TiO 2 on rutile TiO 2 (011). [27] All of these significant changes increase the difficulty of synthesizing 2D metal oxides, as well as pose a challenge to computational structure prediction methods. Notwithstanding, more recently, spectacular progress has been made in prediction, design, preparation, and charac terization of oxide monolayers owing to the advancement of growth technologies and novel synthesis routes, as well as the development of computational and theoretical methods. [28][29][30][31][32][33] The structural reconstructions in combination with the elec tron confinement in 2D and the large surfacetovolume ratio endow 2D transition metal oxides (TMOs) with stunning physical/chemical properties. Moreover, the 2D TMOs showThe discovery of graphene has stimulated dramatic research interest on other 2D materials including transition metal oxide (TMO) monolayers in order to realize novel functionalization and applications. Due to reduced bonding coordination and strong surface polarization, the structures of most TMOs in the monolayer limit are very different from their bulk counterparts, as well as their physical and chemical properties. In this brief review, the authors sum marize recent research progress on atomically thin TMO layers. The focus is on the structural properties of the TMOs and their interaction with the sub strates from the computational point of view. The authors also introduce the potential applications of the TMO 2D materials on supercapacitors, photo catalysts, batteries, and sensors.

show abstract

Section: Interactions Between 2d Tmos and Substrates/2d Materialsmentioning

confidence: 95%

Section: Interactions Between 2d Tmos and Substrates/2d Materialsmentioning

confidence: 99%

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

See 1 more Smart Citation

Atomically Thin 2D Transition Metal Oxides: Structural Reconstruction, Interaction with Substrates, and Potential Applications

Yang

Song

Callsen

et al. 2018

Adv Materials Inter

122

View full text Add to dashboard Cite

show abstract

“…The anchoring of active semiconductors on g‐C 3 N 4 to form heterojunctions has been extended to a variety of inorganic substances. On account of the staggered band alignment between TiO 2 and g‐C 3 N 4 , a complementary and synergetic effect could be expected, once the two are hybridized into heterostructures . A few studies have focused on utilizing TiO 2 ‐g‐C 3 N 4 hybrids for microorganism removal.…”

Section: Graphitic Carbon Nitride (G‐c3n4)‐based Photocatalysts For Wmentioning

confidence: 99%

“…On account of the staggered band alignment between TiO 2 and g-C 3 N 4 , a complementary and synergetic effect could be expected, once the two are hybridized into heterostructures. 36,[88][89][90] A few studies have focused on utilizing TiO 2 -g-C 3 N 4 hybrids for microorganism removal. Li et al first demonstrated the use of TiO 2 -g-C 3 N 4 photocatalyst in antibacterial field.…”

Section: Graphitic Carbon Nitride (G-c 3 N 4 )-Based Photocatalysts Fmentioning

confidence: 99%

Two‐dimensional nanomaterials for photocatalytic water disinfection: recent progress and future challenges

Liu

Zeng

et al. 2018

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

Photocatalysis has received ever‐growing attention as a promising alternative to traditional water treatment technologies for waterborne biohazard inactivation. Due to unique optical, electronic, physicochemical properties and feasibility of functional architecture assembly, two‐dimensional (2D) nanomaterials have become important in developing novel photocatalysts. This review summarizes the recent progress in configuring nanostructures with 2D materials as building blocks for photocatalytic water disinfection. In this review, five categories of 2D nanomaterials, that is, graphene, graphitic carbon nitride, 2D metal oxides and metallates, metal oxyhalides and transition metal dichalcogenides, for photocatalytic pathogen inactivation are introduced. First, the synthesis process, nanostructure engineering and disinfection performance of 2D‐based photocatalysts are reviewed in categories. In the following section, the bacteria destruction mechanism based on the generation and roles of reactive species (RSs) is presented. Moreover, the effects of the chemical characteristics of the water matrix on photocatalytic bactericidal performance are discussed. Finally, the challenges regarding the development and application of 2D‐based photocatalysts for highly efficient water sterilization are highlighted. © 2018 Society of Chemical Industry

show abstract

Titanium Carbide (TiC) MXene‐based Graphitic Carbon Nitride Composites for Energy and Environment Applications

Zerga,

Tahir

2023

Titanium Carbide MXenes

View full text Add to dashboard Cite

Face-to-Face Interfacial Assembly of Ultrathin g-C₃N₄ and Anatase TiO₂ Nanosheets for Enhanced Solar Photocatalytic Activity

Cited by 163 publications

References 54 publications

Atomically Thin 2D Transition Metal Oxides: Structural Reconstruction, Interaction with Substrates, and Potential Applications

Atomically Thin 2D Transition Metal Oxides: Structural Reconstruction, Interaction with Substrates, and Potential Applications

Two‐dimensional nanomaterials for photocatalytic water disinfection: recent progress and future challenges

Titanium Carbide (TiC) MXene‐based Graphitic Carbon Nitride Composites for Energy and Environment Applications

Contact Info

Product

Resources

About