One-step synthesis and photocatalytic behavior for H2 production from water of ZnS/MoS2 composite material

J. E. Samaniego-Benitez; L. Lartundo-Rojas; A. García-García; H. A. Calderón; A. Mantilla

doi:10.1016/j.cattod.2019.08.011

One-step synthesis and photocatalytic behavior for H₂ production from water of ZnS/MoS₂ composite material

J. E. Samaniego-Benitez, L. Lartundo-Rojas, A. García-García, H. A. Calderón, A. Mantilla

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

26 Scopus citations

Abstract

ZnS/MoS₂ composite material was prepared by one-step solvothermal method at different molybdenum concentration. The structural properties of the composite material were analyzed by XRD, UV–vis DRS, TEM and XPS techniques, and the photocatalytic was evaluated for the hydrogen production under UV irradiation. The hydrogen yield reaches 606 μmol h⁻¹ g⁻¹ for the material with 10% of molybdenum, which was 30 and 50% superior than that obtained using MoS₂ and ZnS as photocatalyst, respectively. The increase in the photocatalytic activity may be associated to a synergistic effect produced by the interaction between ZnS and MoS₂, as well as the formation of defects in the structure of ZnS, due to sulfur vacancies produced during the synthesis, which could be observed in the TEM analysis of the composite material.

Original language	English
Pages (from-to)	99-105
Number of pages	7
Journal	Catalysis Today
Volume	360
DOIs	https://doi.org/10.1016/j.cattod.2019.08.011
State	Published - 15 Jan 2021

Keywords

Composite material
H
Metal sulfide
MoS
Noble metals free photocatalyst
ZnS

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.cattod.2019.08.011

Cite this

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title = "One-step synthesis and photocatalytic behavior for H2 production from water of ZnS/MoS2 composite material",

abstract = "ZnS/MoS2 composite material was prepared by one-step solvothermal method at different molybdenum concentration. The structural properties of the composite material were analyzed by XRD, UV–vis DRS, TEM and XPS techniques, and the photocatalytic was evaluated for the hydrogen production under UV irradiation. The hydrogen yield reaches 606 μmol h−1 g−1 for the material with 10% of molybdenum, which was 30 and 50% superior than that obtained using MoS2 and ZnS as photocatalyst, respectively. The increase in the photocatalytic activity may be associated to a synergistic effect produced by the interaction between ZnS and MoS2, as well as the formation of defects in the structure of ZnS, due to sulfur vacancies produced during the synthesis, which could be observed in the TEM analysis of the composite material.",

keywords = "Composite material, H, Metal sulfide, MoS, Noble metals free photocatalyst, ZnS",

author = "Samaniego-Benitez, {J. E.} and L. Lartundo-Rojas and A. Garc{\'i}a-Garc{\'i}a and Calder{\'o}n, {H. A.} and A. Mantilla",

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AU - Samaniego-Benitez, J. E.

AU - Lartundo-Rojas, L.

AU - García-García, A.

AU - Calderón, H. A.

AU - Mantilla, A.

PY - 2021/1/15

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AB - ZnS/MoS2 composite material was prepared by one-step solvothermal method at different molybdenum concentration. The structural properties of the composite material were analyzed by XRD, UV–vis DRS, TEM and XPS techniques, and the photocatalytic was evaluated for the hydrogen production under UV irradiation. The hydrogen yield reaches 606 μmol h−1 g−1 for the material with 10% of molybdenum, which was 30 and 50% superior than that obtained using MoS2 and ZnS as photocatalyst, respectively. The increase in the photocatalytic activity may be associated to a synergistic effect produced by the interaction between ZnS and MoS2, as well as the formation of defects in the structure of ZnS, due to sulfur vacancies produced during the synthesis, which could be observed in the TEM analysis of the composite material.

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KW - Metal sulfide

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