Cu-MOF assisted synthesis of CuS/CdS(H)/CdS(C): Enhanced photocatalytic hydrogen production under visible light

Liangfeng Luo; Yidi Wang; Siping Huo; Peng Lv; Jun Fang; Yang Yang; Bin Fei

doi:10.1016/j.ijhydene.2019.09.136

Cu-MOF assisted synthesis of CuS/CdS(H)/CdS(C): Enhanced photocatalytic hydrogen production under visible light

Liangfeng Luo
, Yidi Wang
, Siping Huo
, Peng Lv
, Jun Fang
, Yang Yang
, Bin Fei

Research output: Journal article publication › Journal article › Academic research › peer-review

47 Citations (Scopus)

Abstract

CuS/CdS(H)/CdS(C) photocatalysts were synthesized via the hydrothermal method by employing thiourea, Cd(CH₃COO)₂·3H₂O and copper 1,4-benzenedicarboxylate MOF (CuBDC). The photocatalysts were characterized by XRD, XPS, BET, TEM and UV–vis diffuse reflectance spectra. Interestingly, hexagonal CdS (CdS(H)) and cubic CdS (CdS(C)) were formed with phase junctions in one step when CuBDC was introduced in the synthesis process, in addition, CuS nanoparticles were deposited on CdS. However, only hexagonal CdS was obtained without CuBDC. It demonstrated that CuBDC was not only the precursor of CuS but also the structural modifier for CdS. With the reduction of re-combination of photo-induced electrons and holes caused by phase junctions and the enhancement of visible-light absorptions due to the loading of CuS, all CuS/CdS(H)/CdS(C) photocatalysts had higher photocurrent densities under visible-light irradiation, and consequently the higher rates of H₂ production than pure CdS(H). Typically, the catalyst with 2.89 wt% of Cu showed a highest rate of H₂ evolution at 2042 μmol/g/h.

Original language	English
Pages (from-to)	30965-30973
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	44
Issue number	59
DOIs	https://doi.org/10.1016/j.ijhydene.2019.09.136
Publication status	Published - 29 Nov 2019

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

CdS
Cu-MOF
CuS
H production
Phase junction

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

More information

10.1016/j.ijhydene.2019.09.136

Cite this

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title = "Cu-MOF assisted synthesis of CuS/CdS(H)/CdS(C): Enhanced photocatalytic hydrogen production under visible light",

abstract = "CuS/CdS(H)/CdS(C) photocatalysts were synthesized via the hydrothermal method by employing thiourea, Cd(CH3COO)2·3H2O and copper 1,4-benzenedicarboxylate MOF (CuBDC). The photocatalysts were characterized by XRD, XPS, BET, TEM and UV–vis diffuse reflectance spectra. Interestingly, hexagonal CdS (CdS(H)) and cubic CdS (CdS(C)) were formed with phase junctions in one step when CuBDC was introduced in the synthesis process, in addition, CuS nanoparticles were deposited on CdS. However, only hexagonal CdS was obtained without CuBDC. It demonstrated that CuBDC was not only the precursor of CuS but also the structural modifier for CdS. With the reduction of re-combination of photo-induced electrons and holes caused by phase junctions and the enhancement of visible-light absorptions due to the loading of CuS, all CuS/CdS(H)/CdS(C) photocatalysts had higher photocurrent densities under visible-light irradiation, and consequently the higher rates of H2 production than pure CdS(H). Typically, the catalyst with 2.89 wt\% of Cu showed a highest rate of H2 evolution at 2042 μmol/g/h.",

keywords = "CdS, Cu-MOF, CuS, H production, Phase junction",

author = "Liangfeng Luo and Yidi Wang and Siping Huo and Peng Lv and Jun Fang and Yang Yang and Bin Fei",

note = "Funding Information: This work was supported by PolyU fund ( 1-ZE27 ). This work was also supported by the National Natural Science Foundation of China (No. 21706130 ), the Jiangsu Natural Science Funds ( BK20150943 ). Publisher Copyright: {\textcopyright} 2019 Hydrogen Energy Publications LLC Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2019",

month = nov,

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doi = "10.1016/j.ijhydene.2019.09.136",

language = "English",

volume = "44",

pages = "30965--30973",

journal = "International Journal of Hydrogen Energy",

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TY - JOUR

T1 - Cu-MOF assisted synthesis of CuS/CdS(H)/CdS(C)

T2 - Enhanced photocatalytic hydrogen production under visible light

AU - Luo, Liangfeng

AU - Wang, Yidi

AU - Huo, Siping

AU - Lv, Peng

AU - Fang, Jun

AU - Yang, Yang

AU - Fei, Bin

N1 - Funding Information: This work was supported by PolyU fund ( 1-ZE27 ). This work was also supported by the National Natural Science Foundation of China (No. 21706130 ), the Jiangsu Natural Science Funds ( BK20150943 ). Publisher Copyright: © 2019 Hydrogen Energy Publications LLC Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2019/11/29

Y1 - 2019/11/29

N2 - CuS/CdS(H)/CdS(C) photocatalysts were synthesized via the hydrothermal method by employing thiourea, Cd(CH3COO)2·3H2O and copper 1,4-benzenedicarboxylate MOF (CuBDC). The photocatalysts were characterized by XRD, XPS, BET, TEM and UV–vis diffuse reflectance spectra. Interestingly, hexagonal CdS (CdS(H)) and cubic CdS (CdS(C)) were formed with phase junctions in one step when CuBDC was introduced in the synthesis process, in addition, CuS nanoparticles were deposited on CdS. However, only hexagonal CdS was obtained without CuBDC. It demonstrated that CuBDC was not only the precursor of CuS but also the structural modifier for CdS. With the reduction of re-combination of photo-induced electrons and holes caused by phase junctions and the enhancement of visible-light absorptions due to the loading of CuS, all CuS/CdS(H)/CdS(C) photocatalysts had higher photocurrent densities under visible-light irradiation, and consequently the higher rates of H2 production than pure CdS(H). Typically, the catalyst with 2.89 wt% of Cu showed a highest rate of H2 evolution at 2042 μmol/g/h.

AB - CuS/CdS(H)/CdS(C) photocatalysts were synthesized via the hydrothermal method by employing thiourea, Cd(CH3COO)2·3H2O and copper 1,4-benzenedicarboxylate MOF (CuBDC). The photocatalysts were characterized by XRD, XPS, BET, TEM and UV–vis diffuse reflectance spectra. Interestingly, hexagonal CdS (CdS(H)) and cubic CdS (CdS(C)) were formed with phase junctions in one step when CuBDC was introduced in the synthesis process, in addition, CuS nanoparticles were deposited on CdS. However, only hexagonal CdS was obtained without CuBDC. It demonstrated that CuBDC was not only the precursor of CuS but also the structural modifier for CdS. With the reduction of re-combination of photo-induced electrons and holes caused by phase junctions and the enhancement of visible-light absorptions due to the loading of CuS, all CuS/CdS(H)/CdS(C) photocatalysts had higher photocurrent densities under visible-light irradiation, and consequently the higher rates of H2 production than pure CdS(H). Typically, the catalyst with 2.89 wt% of Cu showed a highest rate of H2 evolution at 2042 μmol/g/h.

KW - CdS

KW - Cu-MOF

KW - CuS

KW - H production

KW - Phase junction

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DO - 10.1016/j.ijhydene.2019.09.136

M3 - Journal article

AN - SCOPUS:85073731831

SN - 0360-3199

VL - 44

SP - 30965

EP - 30973

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 59

ER -

Cu-MOF assisted synthesis of CuS/CdS(H)/CdS(C): Enhanced photocatalytic hydrogen production under visible light

Abstract

UN SDGs

Keywords

ASJC Scopus subject areas

More information

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