Intercalation of Nb2O5 nano-flowers into the walls of few-layer black phosphorus creating a heterostructure of FL-BP@Nb2O5 with the potential for environmental application

Bhembe, Yoliswa Anittah; Lukhele, Lungile Patricia; Ray, Suprakas Sinha; Dlamini, Langelihle Nsikayezwe

doi:10.1039/d0dt01073a

Cited by 13 publications

(2 citation statements)

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“…Recently, the amount of publications in Nb2O5 photocatalyst has shown a rapid increase over the period shown. Bhembe et al [48] have reported the Nb2O5 nanoparticle's coordination with FL-BP for the heterogeneous bond formation. Recently, Nb2O5 has grown popularity in and a variety range of morphological from large dimension bulk crystals to several nano-sized structures have been demonstrated [34,49].…”

Section: Niobium Pentoxide Applicationsmentioning

confidence: 99%

Significance of Niobium (V) Oxide for Practical Applications: A Review

Shafeeq

AbdulRazzaq

Salim

et al. 2022

KEM

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Nb2O5 has recently been considered as one of the oxides thin films that attracts a noticeable attraction by scientific prospective aspects. Its usefulness in a wide practical applications range such as in optoelectronic devices, optical coatings, catalysis, gas sensors, photocell, electrochromics, photoelectrodes, Ec devices, microelectronics and in the medical field paid researchers attention to synthesize it by various methods like sol.gel, electrodeposition, chemical vapor deposition etc. Among those, Pulsed laser deposition technique has achieved an effective improvements. In this paper, we aim to revise increasing significance of Nb2O5 supported by previous applications and a further possible future outlook.

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Section: Niobium Pentoxide Applicationsmentioning

confidence: 99%

Significance of Niobium (V) Oxide for Practical Applications: A Review

Shafeeq

AbdulRazzaq

Salim

et al. 2022

KEM

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“…[ 33 ] The Raman spectrum of BP nanoflakes exhibits three well‐defined Raman peaks located at 361, 437, and 465 cm −1 , corresponding to the A1 g, B 2g , and A2 g phonon modes, respectively. [ 34 ] These peaks are also identified in the Raman spectrum of the BP/Nb 2 C composite, revealing that the structure of BP nanoflakes is still maintained in the BP/Nb 2 C composite. Compared with the Raman spectrum of BP nanoflakes, the A1 g, B 2g , and A2 g Raman peaks of the BP/Nb 2 C composite show a significant blue shift, indicating the electron transfer between BP nanoflakes and Nb 2 C nanosheets in the BP/Nb 2 C composite.…”

Section: Resultsmentioning

confidence: 94%

Interfacial Polarization Triggered by Covalent‐Bonded MXene and Black Phosphorus for Enhanced Electrochemical Nitrate to Ammonia Conversion

Wang

Song

Cai

et al. 2023

Advanced Energy Materials

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MXenes have recently emerged as a new class of electrocatalysts for diverse energy conversion reactions, but they are generally considered to be catalytically inert. Herein, a strategy of interfacial polarization is put forward to improve the catalytic activity of MXenes, with the construction of an interfacial structure consisting of black phosphorus (BP) nanoflakes and Nb2C MXene nanosheets for electrochemical nitrate reduction to ammonia as a proof of concept. The experimental and computational results reveal that a strong interfacial polarization is built between BP nanoflakes and Nb2C nanosheets in the prepared BP/Nb2C composite. The polarization of Nb centers by adjacent BP sites gives rise to the formation of positively centered Nb atoms and BP‐polarized Nb atoms, which synergistically catalyze the cleavage of N–O bonds in HNO2* to form NO*. In addition, the stabilization of monatomic *N by the BP/Nb2C composite is also enhanced compared with BP nanoflakes and Nb2C nanosheets. As a result, both the ammonia yield rate and Faraday efficiency of the BP/Nb2C composite are much higher than that of BP nanoflakes and Nb2C nanosheets. Overall, this work shows the great potential for constructing a strong interfacial polarization to improve the catalytic performance of MXenes‐based electrocatalysts.

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Nb₂O₅‐Based Photocatalysts

et al. 2021

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Photocatalysis is one potential solution to the energy and environmental crisis and greatly relies on the development of the catalysts. Niobium pentoxide (Nb 2 O 5 ), a typically nontoxic metal oxide, is eco-friendly and exhibits strong oxidation ability, and has attracted considerable attention from researchers. Furthermore, unique Lewis acid sites (LASs) and Brønsted acid sites (BASs) are observed on Nb 2 O 5 prepared by different methods. Herein, the recent advances in the synthesis and application of Nb 2 O 5 -based photocatalysts, including the pure Nb 2 O 5 , doped Nb 2 O 5 , metal species supported on Nb 2 O 5 , and other composited Nb 2 O 5 catalysts, are summarized. An overview is provided for the role of size and crystalline phase, unsaturated Nb sites and oxygen vacancies, LASs and BASs, dopants and surface metal species, and heterojunction structure on the Nb 2 O 5 -based catalysts in photocatalysis. Finally, the challenges are also presented, which are possibly overcome by integrating the synthetic methodology, developing novel photoelectric characterization techniques, and a profound understanding of the local structure of Nb 2 O 5 .

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Intercalation of Nb₂O₅ nano-flowers into the walls of few-layer black phosphorus creating a heterostructure of FL-BP@Nb₂O₅ with the potential for environmental application

Abstract: Herein we report the successful exfoliation of few-layer BP (FL-BP) from bulk BP via ultrasonication in N-methylpyrrolidone (NMP).

Cited by 13 publications

References 32 publications

Significance of Niobium (V) Oxide for Practical Applications: A Review

Significance of Niobium (V) Oxide for Practical Applications: A Review

Interfacial Polarization Triggered by Covalent‐Bonded MXene and Black Phosphorus for Enhanced Electrochemical Nitrate to Ammonia Conversion

Nb₂O₅‐Based Photocatalysts

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Intercalation of Nb2O5 nano-flowers into the walls of few-layer black phosphorus creating a heterostructure of FL-BP@Nb2O5 with the potential for environmental application

Abstract: Herein we report the successful exfoliation of few-layer BP (FL-BP) from bulk BP via ultrasonication in N-methylpyrrolidone (NMP).

Cited by 13 publications

References 32 publications

Significance of Niobium (V) Oxide for Practical Applications: A Review

Significance of Niobium (V) Oxide for Practical Applications: A Review

Interfacial Polarization Triggered by Covalent‐Bonded MXene and Black Phosphorus for Enhanced Electrochemical Nitrate to Ammonia Conversion

Nb2O5‐Based Photocatalysts

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Product

Resources

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Intercalation of Nb₂O₅ nano-flowers into the walls of few-layer black phosphorus creating a heterostructure of FL-BP@Nb₂O₅ with the potential for environmental application

Nb₂O₅‐Based Photocatalysts