Fe3C/CdS as noble-metal-free composite photocatalyst for highly enhanced photocatalytic H2 production under visible light

Rana Muhammad Irfan; Mudassir Hussain Tahir; Mubashar Nadeem; Mudassar Maqsood; Tariq Bashir; Shahid Iqbal; Jianqing Zhao; Lijun Gao

doi:10.1016/j.apcata.2020.117768

Fe₃C/CdS as noble-metal-free composite photocatalyst for highly enhanced photocatalytic H₂ production under visible light

Rana Muhammad Irfan, Mudassir Hussain Tahir, Mubashar Nadeem, Mudassar Maqsood, Tariq Bashir, Shahid Iqbal, Jianqing Zhao, Lijun Gao

Research output: Journal Publication › Article › peer-review

40 Citations (Scopus)

Abstract

Development of photocatalytic systems for scalable and inexpensive solar hydrogen (H₂) requires non-noble-metal cocatalysts. Integration of Fe₃C with 1D metal sulfide photo-absorber highly improved the activity and durability of photocatalytic H₂ evolution. Consequently, the enhanced hydrogen evolution rate of 195 μmol h⁻¹ was achieved which is 15 times higher than that of pure CdS NRs. The apparent quantum yield was approached to 11.5 % under monochromatic 420 nm light. On the other hand, photocorrosion of the photosensitizer was hampered and the system demonstrated robust stability of 22 h under visible light. Moreover, Fe₃C showcased high current density with low overpotential for electrocatalytic HER, proving it feasible for H₂ evolution. The role of Fe₃C was comprehensively studied using electrochemical studies, BET surface area, PL and TRPL spectroscopy. This work demonstrated the exceptional potential of Fe₃C/CdS NRs as a promising inexpensive photocatalyst with high activity and stability for H₂ production under visible light.

Original language	English
Article number	117768
Journal	Applied Catalysis A: General
Volume	603
DOIs	https://doi.org/10.1016/j.apcata.2020.117768
Publication status	Published - 5 Aug 2020
Externally published	Yes

Keywords

Charge separation
Cocatalyst
FeC
H production
Interfaces

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

UN SDGs

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

Access to Document

10.1016/j.apcata.2020.117768

Cite this

@article{c389d51b105d4aebb59d0d3b811bd90a,

title = "Fe3C/CdS as noble-metal-free composite photocatalyst for highly enhanced photocatalytic H2 production under visible light",

abstract = "Development of photocatalytic systems for scalable and inexpensive solar hydrogen (H2) requires non-noble-metal cocatalysts. Integration of Fe3C with 1D metal sulfide photo-absorber highly improved the activity and durability of photocatalytic H2 evolution. Consequently, the enhanced hydrogen evolution rate of 195 μmol h−1 was achieved which is 15 times higher than that of pure CdS NRs. The apparent quantum yield was approached to 11.5 % under monochromatic 420 nm light. On the other hand, photocorrosion of the photosensitizer was hampered and the system demonstrated robust stability of 22 h under visible light. Moreover, Fe3C showcased high current density with low overpotential for electrocatalytic HER, proving it feasible for H2 evolution. The role of Fe3C was comprehensively studied using electrochemical studies, BET surface area, PL and TRPL spectroscopy. This work demonstrated the exceptional potential of Fe3C/CdS NRs as a promising inexpensive photocatalyst with high activity and stability for H2 production under visible light.",

keywords = "Charge separation, Cocatalyst, FeC, H production, Interfaces",

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

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

year = "2020",

month = aug,

day = "5",

doi = "10.1016/j.apcata.2020.117768",

language = "English",

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T1 - Fe3C/CdS as noble-metal-free composite photocatalyst for highly enhanced photocatalytic H2 production under visible light

AU - Irfan, Rana Muhammad

AU - Tahir, Mudassir Hussain

AU - Nadeem, Mubashar

AU - Maqsood, Mudassar

AU - Bashir, Tariq

AU - Iqbal, Shahid

AU - Zhao, Jianqing

AU - Gao, Lijun

PY - 2020/8/5

Y1 - 2020/8/5

N2 - Development of photocatalytic systems for scalable and inexpensive solar hydrogen (H2) requires non-noble-metal cocatalysts. Integration of Fe3C with 1D metal sulfide photo-absorber highly improved the activity and durability of photocatalytic H2 evolution. Consequently, the enhanced hydrogen evolution rate of 195 μmol h−1 was achieved which is 15 times higher than that of pure CdS NRs. The apparent quantum yield was approached to 11.5 % under monochromatic 420 nm light. On the other hand, photocorrosion of the photosensitizer was hampered and the system demonstrated robust stability of 22 h under visible light. Moreover, Fe3C showcased high current density with low overpotential for electrocatalytic HER, proving it feasible for H2 evolution. The role of Fe3C was comprehensively studied using electrochemical studies, BET surface area, PL and TRPL spectroscopy. This work demonstrated the exceptional potential of Fe3C/CdS NRs as a promising inexpensive photocatalyst with high activity and stability for H2 production under visible light.

AB - Development of photocatalytic systems for scalable and inexpensive solar hydrogen (H2) requires non-noble-metal cocatalysts. Integration of Fe3C with 1D metal sulfide photo-absorber highly improved the activity and durability of photocatalytic H2 evolution. Consequently, the enhanced hydrogen evolution rate of 195 μmol h−1 was achieved which is 15 times higher than that of pure CdS NRs. The apparent quantum yield was approached to 11.5 % under monochromatic 420 nm light. On the other hand, photocorrosion of the photosensitizer was hampered and the system demonstrated robust stability of 22 h under visible light. Moreover, Fe3C showcased high current density with low overpotential for electrocatalytic HER, proving it feasible for H2 evolution. The role of Fe3C was comprehensively studied using electrochemical studies, BET surface area, PL and TRPL spectroscopy. This work demonstrated the exceptional potential of Fe3C/CdS NRs as a promising inexpensive photocatalyst with high activity and stability for H2 production under visible light.

KW - Charge separation

KW - Cocatalyst

KW - FeC

KW - H production

KW - Interfaces

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