CoSe as non-noble-metal cocatalyst integrated with heterojunction photosensitizer for inexpensive H2 production under visible light

Rana Muhammad Irfan; Mudassir Hussain Tahir; Mudassar Maqsood; Yanping Lin; Tariq Bashir; Shahid Iqbal; Jianqing Zhao; Lijun Gao; Muhammad Haroon

doi:10.1016/j.jcat.2020.07.034

CoSe as non-noble-metal cocatalyst integrated with heterojunction photosensitizer for inexpensive H₂ production under visible light

Rana Muhammad Irfan, Mudassir Hussain Tahir, Mudassar Maqsood, Yanping Lin, Tariq Bashir, Shahid Iqbal, Jianqing Zhao, Lijun Gao, Muhammad Haroon

Research output: Journal Publication › Article › peer-review

52 Citations (Scopus)

Abstract

The development of inexpensive cocatalysts based on earth-abundant-elements, is highly demanding strategy to produce large-scale photocatalytic H₂ for real-life applications. Herein, we report the utilization of CoSe as a highly efficient cocatalyst to significantly improve the photocatalytic H₂ production on ZnSe/CdS under visible irradiation. The maximum H₂ production rate of 785 μmol h⁻¹ was attained under optimized conditions. Furthermore, the current system showed robust stability up to 30 h of irradiation and more than 23 mmol of H₂ was produced. The highest apparent quantum yield of the system was 55.3% at monochromatic 420 nm light. Photocurrent responses, UV–vis diffuse reflectance absorption spectroscopy, electrochemical impedance spectroscopy and photoluminescence (PL) spectroscopy were used to explain the mechanistic roles of CoSe and ZnSe in current photocatalytic system. This work showcased the successful usage of CoSe as cocatalyst and ZnSe as visible light active semiconductor for inexpensive conversion of solar energy to H₂.

Original language	English
Pages (from-to)	196-205
Number of pages	10
Journal	Journal of Catalysis
Volume	390
DOIs	https://doi.org/10.1016/j.jcat.2020.07.034
Publication status	Published - Oct 2020
Externally published	Yes

Keywords

Charge separation
CoSe
Cocatalyst
H production
ZnSe/CdS

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

Access to Document

10.1016/j.jcat.2020.07.034

Cite this

@article{d330c1f6d2374db583fcd85ec8ac2e11,

title = "CoSe as non-noble-metal cocatalyst integrated with heterojunction photosensitizer for inexpensive H2 production under visible light",

abstract = "The development of inexpensive cocatalysts based on earth-abundant-elements, is highly demanding strategy to produce large-scale photocatalytic H2 for real-life applications. Herein, we report the utilization of CoSe as a highly efficient cocatalyst to significantly improve the photocatalytic H2 production on ZnSe/CdS under visible irradiation. The maximum H2 production rate of 785 μmol h−1 was attained under optimized conditions. Furthermore, the current system showed robust stability up to 30 h of irradiation and more than 23 mmol of H2 was produced. The highest apparent quantum yield of the system was 55.3% at monochromatic 420 nm light. Photocurrent responses, UV–vis diffuse reflectance absorption spectroscopy, electrochemical impedance spectroscopy and photoluminescence (PL) spectroscopy were used to explain the mechanistic roles of CoSe and ZnSe in current photocatalytic system. This work showcased the successful usage of CoSe as cocatalyst and ZnSe as visible light active semiconductor for inexpensive conversion of solar energy to H2.",

keywords = "Charge separation, CoSe, Cocatalyst, H production, ZnSe/CdS",

author = "Irfan, {Rana Muhammad} and Tahir, {Mudassir Hussain} and Mudassar Maqsood and Yanping Lin and Tariq Bashir and Shahid Iqbal and Jianqing Zhao and Lijun Gao and Muhammad Haroon",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Inc.",

year = "2020",

month = oct,

doi = "10.1016/j.jcat.2020.07.034",

language = "English",

volume = "390",

pages = "196--205",

journal = "Journal of Catalysis",

issn = "0021-9517",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - CoSe as non-noble-metal cocatalyst integrated with heterojunction photosensitizer for inexpensive H2 production under visible light

AU - Irfan, Rana Muhammad

AU - Tahir, Mudassir Hussain

AU - Maqsood, Mudassar

AU - Lin, Yanping

AU - Bashir, Tariq

AU - Iqbal, Shahid

AU - Zhao, Jianqing

AU - Gao, Lijun

AU - Haroon, Muhammad

PY - 2020/10

Y1 - 2020/10

N2 - The development of inexpensive cocatalysts based on earth-abundant-elements, is highly demanding strategy to produce large-scale photocatalytic H2 for real-life applications. Herein, we report the utilization of CoSe as a highly efficient cocatalyst to significantly improve the photocatalytic H2 production on ZnSe/CdS under visible irradiation. The maximum H2 production rate of 785 μmol h−1 was attained under optimized conditions. Furthermore, the current system showed robust stability up to 30 h of irradiation and more than 23 mmol of H2 was produced. The highest apparent quantum yield of the system was 55.3% at monochromatic 420 nm light. Photocurrent responses, UV–vis diffuse reflectance absorption spectroscopy, electrochemical impedance spectroscopy and photoluminescence (PL) spectroscopy were used to explain the mechanistic roles of CoSe and ZnSe in current photocatalytic system. This work showcased the successful usage of CoSe as cocatalyst and ZnSe as visible light active semiconductor for inexpensive conversion of solar energy to H2.

AB - The development of inexpensive cocatalysts based on earth-abundant-elements, is highly demanding strategy to produce large-scale photocatalytic H2 for real-life applications. Herein, we report the utilization of CoSe as a highly efficient cocatalyst to significantly improve the photocatalytic H2 production on ZnSe/CdS under visible irradiation. The maximum H2 production rate of 785 μmol h−1 was attained under optimized conditions. Furthermore, the current system showed robust stability up to 30 h of irradiation and more than 23 mmol of H2 was produced. The highest apparent quantum yield of the system was 55.3% at monochromatic 420 nm light. Photocurrent responses, UV–vis diffuse reflectance absorption spectroscopy, electrochemical impedance spectroscopy and photoluminescence (PL) spectroscopy were used to explain the mechanistic roles of CoSe and ZnSe in current photocatalytic system. This work showcased the successful usage of CoSe as cocatalyst and ZnSe as visible light active semiconductor for inexpensive conversion of solar energy to H2.

KW - Charge separation

KW - CoSe

KW - Cocatalyst

KW - H production

KW - ZnSe/CdS

UR - http://www.scopus.com/inward/record.url?scp=85089838651&partnerID=8YFLogxK

U2 - 10.1016/j.jcat.2020.07.034

DO - 10.1016/j.jcat.2020.07.034

M3 - Article

AN - SCOPUS:85089838651

SN - 0021-9517

VL - 390

SP - 196

EP - 205

JO - Journal of Catalysis

JF - Journal of Catalysis

ER -