Hierarchical MoS2@TiO2 Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution

Yu Dong; Sheng You Chen; Yi Lu; Yu Xuan Xiao; Jie Hu; Si Ming Wu; Zhao Deng; Ge Tian; Gang Gang Chang; Jing Li; Silvia Lenaerts; Christoph Janiak; Xiao Yu Yang; Bao Lian Su

doi:10.1002/asia.201800359

Hierarchical MoS₂@TiO₂ Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution

Yu Dong, Sheng You Chen, Yi Lu, Yu Xuan Xiao, Jie Hu, Si Ming Wu, Zhao Deng, Ge Tian, Gang Gang Chang, Jing Li, Silvia Lenaerts, Christoph Janiak, Xiao Yu Yang, Bao Lian Su

University of Namur

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

Abstract

Hierarchical MoS₂@TiO₂ heterojunctions were synthesized through a one-step hydrothermal method by using protonic titanate nanosheets as the precursor. The TiO₂ nanosheets prevent the aggregation of MoS₂ and promote the carrier transfer efficiency, and thus enhance the photocatalytic and electrocatalytic activity of the nanostructured MoS₂. The obtained MoS₂@TiO₂ has significantly enhanced photocatalytic activity in the degradation of rhodamine B (over 5.2 times compared with pure MoS₂) and acetone (over 2.8 times compared with pure MoS₂). MoS₂@TiO₂ is also beneficial for electrocatalytic hydrogen evolution (26 times compared with pure MoS₂, based on the cathodic current density). This work offers a promising way to prevent the self-aggregation of MoS₂ and provides a new insight for the design of heterojunctions for materials with lattice mismatches.

Original language	English
Pages (from-to)	1609-1615
Number of pages	7
Journal	Chemistry - An Asian Journal
Volume	13
Issue number	12
DOIs	https://doi.org/10.1002/asia.201800359
Publication status	Published - 18 Jun 2018

Keywords

electrochemistry
hybrid structures
hydrogen
nanostructures
photochemistry
electron transfer
photocatalysts
naocomposites

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10.1002/asia.201800359

Cite this

Dong, Y., Chen, S. Y., Lu, Y., Xiao, Y. X., Hu, J., Wu, S. M., Deng, Z., Tian, G., Chang, G. G., Li, J., Lenaerts, S., Janiak, C., Yang, X. Y., & Su, B. L. (2018). Hierarchical MoS₂@TiO₂ Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution. Chemistry - An Asian Journal, 13(12), 1609-1615. https://doi.org/10.1002/asia.201800359

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title = "Hierarchical MoS2@TiO2 Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution",

abstract = "Hierarchical MoS2@TiO2 heterojunctions were synthesized through a one-step hydrothermal method by using protonic titanate nanosheets as the precursor. The TiO2 nanosheets prevent the aggregation of MoS2 and promote the carrier transfer efficiency, and thus enhance the photocatalytic and electrocatalytic activity of the nanostructured MoS2. The obtained MoS2@TiO2 has significantly enhanced photocatalytic activity in the degradation of rhodamine B (over 5.2 times compared with pure MoS2) and acetone (over 2.8 times compared with pure MoS2). MoS2@TiO2 is also beneficial for electrocatalytic hydrogen evolution (26 times compared with pure MoS2, based on the cathodic current density). This work offers a promising way to prevent the self-aggregation of MoS2 and provides a new insight for the design of heterojunctions for materials with lattice mismatches.",

keywords = "electrochemistry, hybrid structures, hydrogen, nanostructures, photochemistry, electron transfer, photocatalysts, naocomposites",

author = "Yu Dong and Chen, {Sheng You} and Yi Lu and Xiao, {Yu Xuan} and Jie Hu and Wu, {Si Ming} and Zhao Deng and Ge Tian and Chang, {Gang Gang} and Jing Li and Silvia Lenaerts and Christoph Janiak and Yang, {Xiao Yu} and Su, {Bao Lian}",

year = "2018",

month = jun,

day = "18",

doi = "10.1002/asia.201800359",

language = "English",

volume = "13",

pages = "1609--1615",

journal = "Chemistry - An Asian Journal",

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T1 - Hierarchical MoS2@TiO2 Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution

AU - Dong, Yu

AU - Chen, Sheng You

AU - Lu, Yi

AU - Xiao, Yu Xuan

AU - Hu, Jie

AU - Wu, Si Ming

AU - Deng, Zhao

AU - Tian, Ge

AU - Chang, Gang Gang

AU - Li, Jing

AU - Lenaerts, Silvia

AU - Janiak, Christoph

AU - Yang, Xiao Yu

AU - Su, Bao Lian

PY - 2018/6/18

Y1 - 2018/6/18

N2 - Hierarchical MoS2@TiO2 heterojunctions were synthesized through a one-step hydrothermal method by using protonic titanate nanosheets as the precursor. The TiO2 nanosheets prevent the aggregation of MoS2 and promote the carrier transfer efficiency, and thus enhance the photocatalytic and electrocatalytic activity of the nanostructured MoS2. The obtained MoS2@TiO2 has significantly enhanced photocatalytic activity in the degradation of rhodamine B (over 5.2 times compared with pure MoS2) and acetone (over 2.8 times compared with pure MoS2). MoS2@TiO2 is also beneficial for electrocatalytic hydrogen evolution (26 times compared with pure MoS2, based on the cathodic current density). This work offers a promising way to prevent the self-aggregation of MoS2 and provides a new insight for the design of heterojunctions for materials with lattice mismatches.

AB - Hierarchical MoS2@TiO2 heterojunctions were synthesized through a one-step hydrothermal method by using protonic titanate nanosheets as the precursor. The TiO2 nanosheets prevent the aggregation of MoS2 and promote the carrier transfer efficiency, and thus enhance the photocatalytic and electrocatalytic activity of the nanostructured MoS2. The obtained MoS2@TiO2 has significantly enhanced photocatalytic activity in the degradation of rhodamine B (over 5.2 times compared with pure MoS2) and acetone (over 2.8 times compared with pure MoS2). MoS2@TiO2 is also beneficial for electrocatalytic hydrogen evolution (26 times compared with pure MoS2, based on the cathodic current density). This work offers a promising way to prevent the self-aggregation of MoS2 and provides a new insight for the design of heterojunctions for materials with lattice mismatches.

KW - electrochemistry

KW - hybrid structures

KW - hydrogen

KW - nanostructures

KW - photochemistry

KW - electron transfer

KW - photocatalysts

KW - naocomposites

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Hierarchical MoS₂@TiO₂ Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution

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Hierarchical MoS2@TiO2 Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution

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Hierarchical MoS₂@TiO₂ Heterojunctions for Enhanced Photocatalytic Performance and Electrocatalytic Hydrogen Evolution