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

Research output: Contribution to journalArticle

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 languageEnglish
Article number110779
JournalMaterials Research Bulletin
Volume125
DOIs
Publication statusPublished - May 2020

Fingerprint

Light absorption
Heterojunctions
heterojunctions
water splitting
Transportation charges
electromagnetic absorption
Composite structures
Photocurrents
Electrochemical impedance spectroscopy
Charge transfer
Water
Energy gap
composite structures
Semiconductor materials
photocurrents
Composite materials
charge transfer
impedance
Costs
composite materials

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Mohamed, N. A., Safaei, J., Ismail, A. F., Khalid, M. N., Mohd Jailani, M. F. A., Noh, M. F. M., ... Teridi, M. A. M. (2020). Boosting photocatalytic activities of BiVO4 by creation of g-C3N4/ZnO@BiVO4 Heterojunction. Materials Research Bulletin, 125, [110779]. https://doi.org/10.1016/j.materresbull.2020.110779

Boosting photocatalytic activities of BiVO4 by creation of g-C3N4/ZnO@BiVO4 Heterojunction. / Mohamed, Nurul Aida; Safaei, Javad; Ismail, Aznan Fazli; Khalid, Muhammad Najib; Mohd Jailani, Muhammad Fareez Amir; Noh, Mohamad Firdaus Mohamad; Arzaee, Nurul Affiqah; Zhou, Di; Sagu, Jagdeep S.; Teridi, Mohd Asri Mat.

In: Materials Research Bulletin, Vol. 125, 110779, 05.2020.

Research output: Contribution to journalArticle

Mohamed, NA, Safaei, J, Ismail, AF, Khalid, MN, Mohd Jailani, MFA, Noh, MFM, Arzaee, NA, Zhou, D, Sagu, JS & Teridi, MAM 2020, 'Boosting photocatalytic activities of BiVO4 by creation of g-C3N4/ZnO@BiVO4 Heterojunction', Materials Research Bulletin, vol. 125, 110779. https://doi.org/10.1016/j.materresbull.2020.110779
Mohamed, Nurul Aida ; Safaei, Javad ; Ismail, Aznan Fazli ; Khalid, Muhammad Najib ; Mohd Jailani, Muhammad Fareez Amir ; Noh, Mohamad Firdaus Mohamad ; Arzaee, Nurul Affiqah ; Zhou, Di ; Sagu, Jagdeep S. ; Teridi, Mohd Asri Mat. / Boosting photocatalytic activities of BiVO4 by creation of g-C3N4/ZnO@BiVO4 Heterojunction. In: Materials Research Bulletin. 2020 ; Vol. 125.
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