Evolution of hydrogen by few-layered black phosphorus under visible illumination

Subas Kumar Muduli; Eswaraiah Varrla; You Xu; Sneha Avinash Kulkarni; Ankita Katre; Sudip Chakraborty; Shi Chen; Tze Chien Sum; Rong Xu; Nripan Mathews

doi:10.1039/c7ta04889k

Evolution of hydrogen by few-layered black phosphorus under visible illumination

Subas Kumar Muduli, Eswaraiah Varrla, You Xu, Sneha Avinash Kulkarni, Ankita Katre, Sudip Chakraborty, Shi Chen, Tze Chien Sum, Rong Xu^*, Nripan Mathews

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

Recently, a new class of two-dimensional black phosphorus (BP) with a visible direct band gap is predicted as a potential candidate for photo-catalysis applications. Here, we present the first experimental evidence of hydrogen (H₂) evolution from aqueous solution by using BP (nanosheets and nanoparticles) under visible light illumination. Our experimental results describe that liquid phase exfoliated BP nanosheets and BP nanoparticles exhibit suitable energy level alignments for electron transfer and further proton reduction reactions in the solution under visible light illumination. Density functional theory (DFT) calculations predict that the H₂ evolution activity of bilayer BP is independent of edge or center positions, which is unique in BP as compared to those of other 2D materials.

Original language	English
Pages (from-to)	24874-24879
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	5
Issue number	47
DOIs	https://doi.org/10.1039/c7ta04889k
Publication status	Published - 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 The Royal Society of Chemistry.

ASJC Scopus Subject Areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

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10.1039/c7ta04889k

Cite this

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title = "Evolution of hydrogen by few-layered black phosphorus under visible illumination",

abstract = "Recently, a new class of two-dimensional black phosphorus (BP) with a visible direct band gap is predicted as a potential candidate for photo-catalysis applications. Here, we present the first experimental evidence of hydrogen (H2) evolution from aqueous solution by using BP (nanosheets and nanoparticles) under visible light illumination. Our experimental results describe that liquid phase exfoliated BP nanosheets and BP nanoparticles exhibit suitable energy level alignments for electron transfer and further proton reduction reactions in the solution under visible light illumination. Density functional theory (DFT) calculations predict that the H2 evolution activity of bilayer BP is independent of edge or center positions, which is unique in BP as compared to those of other 2D materials.",

author = "Muduli, {Subas Kumar} and Eswaraiah Varrla and You Xu and Kulkarni, {Sneha Avinash} and Ankita Katre and Sudip Chakraborty and Shi Chen and Sum, {Tze Chien} and Rong Xu and Nripan Mathews",

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doi = "10.1039/c7ta04889k",

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T1 - Evolution of hydrogen by few-layered black phosphorus under visible illumination

AU - Muduli, Subas Kumar

AU - Varrla, Eswaraiah

AU - Xu, You

AU - Kulkarni, Sneha Avinash

AU - Katre, Ankita

AU - Chakraborty, Sudip

AU - Chen, Shi

AU - Sum, Tze Chien

AU - Xu, Rong

AU - Mathews, Nripan

PY - 2017

Y1 - 2017

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AB - Recently, a new class of two-dimensional black phosphorus (BP) with a visible direct band gap is predicted as a potential candidate for photo-catalysis applications. Here, we present the first experimental evidence of hydrogen (H2) evolution from aqueous solution by using BP (nanosheets and nanoparticles) under visible light illumination. Our experimental results describe that liquid phase exfoliated BP nanosheets and BP nanoparticles exhibit suitable energy level alignments for electron transfer and further proton reduction reactions in the solution under visible light illumination. Density functional theory (DFT) calculations predict that the H2 evolution activity of bilayer BP is independent of edge or center positions, which is unique in BP as compared to those of other 2D materials.

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Evolution of hydrogen by few-layered black phosphorus under visible illumination

Abstract

Bibliographical note

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UN SDGs

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