Synthesis and bader analyzed cobalt-phthalocyanine modified solar UV-blind β-Ga2O3 quadrilateral nanorods photocatalysts for wide-visible-light driven H2 evolution

Sharafat Ali, Sajjad Ali, Pir Muhammad Ismail, Huahai Shen, Amir Zada, Asad Ali, Ismail Ahmad, Rahim Shah, Imran Khan, Junsong Chen, Chunhua Cui, Xiaoqiang Wu, Qingquan Kong, Jiabao Yi, Xiaotao Zu, Haiyan Xiao, Fazal Raziq, Liang Qiao

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

In this work, an efficient wide solar light-driven photocatalyst based on solar UV-blind β-Ga2O3 quadrilateral nanorods (β-GOR) has been modified with cobalt phthalocyanine (CoPc). Guided by density functional theory (DFT) calculations and experimental results, H-bond strengthened interfacial connection was established to purchase wide range of solar radiations and applied as an efficient photocatalysts for H2 evolution from water. The optimized 3CoPc/β-GOR nanocomposite unveiled an unprecedented in the quantum efficiency (0.38%) at 660 nm excitation wavelength with outstanding structural stability compare to the pristine solar UV-blind β-GOR (0%). The much extended photoactivities are accredited to the formation of strong H-bond between CoPc and β-GOR, that accelerated charge transformation as confirmed from Bader charge/work function analysis, activation of O2, wide visible-light absorption, as well as joint DFT and experimental results. We believe that this system will also work for other metal phthalocyanines such as ZnPc, NiPc and HPc together with β-GOR towards next-generation efficient photocatalysts with wide-visible light response.
Original languageEnglish (US)
JournalApplied Catalysis B: Environmental
Volume307
DOIs
StatePublished - Jun 15 2022
Externally publishedYes

ASJC Scopus subject areas

  • General Environmental Science
  • Catalysis
  • Process Chemistry and Technology

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