Boosting photocatalytic activities of BiVO4 by creation of g-C3N4/ZnO@BiVO4 Heterojunction

Nurul Aida Mohamed; Javad Safaei; Aznan Fazli Ismail; Muhammad Najib Khalid; Muhammad Fareez Amir Mohd Jailani; Mohamad Firdaus Mohamad Noh; Nurul Affiqah Arzaee; Di Zhou; Jagdeep S. Sagu; Mohd Asri Mat Teridi

doi:10.1016/j.materresbull.2020.110779

Boosting photocatalytic activities of BiVO₄ by creation of g-C₃N₄/ZnO@BiVO₄ Heterojunction

Nurul Aida Mohamed
, Javad Safaei
, Aznan Fazli Ismail
, Muhammad Najib Khalid
, Muhammad Fareez Amir Mohd Jailani
, Mohamad Firdaus Mohamad Noh
, Nurul Affiqah Arzaee
, Di Zhou
, Jagdeep S. Sagu
, Mohd Asri Mat Teridi

Faculty of Electronic and Information Engineering

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

88 Scopus citations

Abstract

BiVO₄ has attracted great attention as a semiconductor for Photoelectrochemical (PEC) water splitting because of its low cost, good stability, and suitable band gap of 2.4 eV. In this research, the contribution of g-C₃N₄@ZnO on BiVO₄ photoelectrochemical performance, light absorption, charge transportation, and morphology were investigated. Incorporation of g-C₃N₄/ZnO as underlying layer in heterojunction with BiVO₄ boosted the photocurrent from ∼ 0.21 mA cm⁻² for bare BiVO₄ to 0.65 mA cm⁻² for g-C₃N₄@ZnO/BiVO₄ heterojunction composite structure at 1.23 V versus Ag/AgCl. The C and N elements derived from g-C₃N₄ on ZnO resulted in a tenacious interactions, lowered charge transfer resistance and increased light absorption of BiVO₄. The high photoelectrochemical performance, together with good electrochemical impedance spectroscopy parameters and stability reveals g-C₃N₄/ZnO composite to be a suitable candidate in enhancing the performance of BiVO₄ for PEC solar water splitting applications.

Original language	English
Article number	110779
Journal	Materials Research Bulletin
Volume	125
DOIs	https://doi.org/10.1016/j.materresbull.2020.110779
State	Published - May 2020

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

BiVO
Electrodeposition
Heterojunction
PEC water splitting
Spin-coating
g-CN/ ZnO composite

Access to Document

10.1016/j.materresbull.2020.110779

Cite this

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title = "Boosting photocatalytic activities of BiVO4 by creation of g-C3N4/ZnO@BiVO4 Heterojunction",

abstract = "BiVO4 has attracted great attention as a semiconductor for Photoelectrochemical (PEC) water splitting because of its low cost, good stability, and suitable band gap of 2.4 eV. In this research, the contribution of g-C3N4@ZnO on BiVO4 photoelectrochemical performance, light absorption, charge transportation, and morphology were investigated. Incorporation of g-C3N4/ZnO as underlying layer in heterojunction with BiVO4 boosted the photocurrent from ∼ 0.21 mA cm−2 for bare BiVO4 to 0.65 mA cm−2 for g-C3N4@ZnO/BiVO4 heterojunction composite structure at 1.23 V versus Ag/AgCl. The C and N elements derived from g-C3N4 on ZnO resulted in a tenacious interactions, lowered charge transfer resistance and increased light absorption of BiVO4. The high photoelectrochemical performance, together with good electrochemical impedance spectroscopy parameters and stability reveals g-C3N4/ZnO composite to be a suitable candidate in enhancing the performance of BiVO4 for PEC solar water splitting applications.",

keywords = "BiVO, Electrodeposition, Heterojunction, PEC water splitting, Spin-coating, g-CN/ ZnO composite",

author = "Mohamed, \{Nurul Aida\} and Javad Safaei and Ismail, \{Aznan Fazli\} and Khalid, \{Muhammad Najib\} and \{Mohd Jailani\}, \{Muhammad Fareez Amir\} and Noh, \{Mohamad Firdaus Mohamad\} and Arzaee, \{Nurul Affiqah\} and Di Zhou and Sagu, \{Jagdeep S.\} and Teridi, \{Mohd Asri Mat\}",

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

year = "2020",

month = may,

doi = "10.1016/j.materresbull.2020.110779",

language = "英语",

volume = "125",

journal = "Materials Research Bulletin",

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T1 - Boosting photocatalytic activities of BiVO4 by creation of g-C3N4/ZnO@BiVO4 Heterojunction

AU - Mohamed, Nurul Aida

AU - Safaei, Javad

AU - Ismail, Aznan Fazli

AU - Khalid, Muhammad Najib

AU - Mohd Jailani, Muhammad Fareez Amir

AU - Noh, Mohamad Firdaus Mohamad

AU - Arzaee, Nurul Affiqah

AU - Zhou, Di

AU - Sagu, Jagdeep S.

AU - Teridi, Mohd Asri Mat

PY - 2020/5

Y1 - 2020/5

N2 - BiVO4 has attracted great attention as a semiconductor for Photoelectrochemical (PEC) water splitting because of its low cost, good stability, and suitable band gap of 2.4 eV. In this research, the contribution of g-C3N4@ZnO on BiVO4 photoelectrochemical performance, light absorption, charge transportation, and morphology were investigated. Incorporation of g-C3N4/ZnO as underlying layer in heterojunction with BiVO4 boosted the photocurrent from ∼ 0.21 mA cm−2 for bare BiVO4 to 0.65 mA cm−2 for g-C3N4@ZnO/BiVO4 heterojunction composite structure at 1.23 V versus Ag/AgCl. The C and N elements derived from g-C3N4 on ZnO resulted in a tenacious interactions, lowered charge transfer resistance and increased light absorption of BiVO4. The high photoelectrochemical performance, together with good electrochemical impedance spectroscopy parameters and stability reveals g-C3N4/ZnO composite to be a suitable candidate in enhancing the performance of BiVO4 for PEC solar water splitting applications.

AB - BiVO4 has attracted great attention as a semiconductor for Photoelectrochemical (PEC) water splitting because of its low cost, good stability, and suitable band gap of 2.4 eV. In this research, the contribution of g-C3N4@ZnO on BiVO4 photoelectrochemical performance, light absorption, charge transportation, and morphology were investigated. Incorporation of g-C3N4/ZnO as underlying layer in heterojunction with BiVO4 boosted the photocurrent from ∼ 0.21 mA cm−2 for bare BiVO4 to 0.65 mA cm−2 for g-C3N4@ZnO/BiVO4 heterojunction composite structure at 1.23 V versus Ag/AgCl. The C and N elements derived from g-C3N4 on ZnO resulted in a tenacious interactions, lowered charge transfer resistance and increased light absorption of BiVO4. The high photoelectrochemical performance, together with good electrochemical impedance spectroscopy parameters and stability reveals g-C3N4/ZnO composite to be a suitable candidate in enhancing the performance of BiVO4 for PEC solar water splitting applications.

KW - BiVO

KW - Electrodeposition

KW - Heterojunction

KW - PEC water splitting

KW - Spin-coating

KW - g-CN/ ZnO composite

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