Visible-Light Photoreduction of CO 2  in a Metal–Organic Framework: Boosting Electron–Hole Separation via Electron Trap States

Xu, Hai-Qun; Hu, Jiahua; Wang, Dengke; Li, Zhaohui; Zhang, Qun; Luo, Yi; Yu, Shu‐Hong; Jiang, Hai‐Long

doi:10.1021/jacs.5b08773

articleJournal of the American Chemical SocietyOct 4, 2015Closed access

Visible-Light Photoreduction of CO 2 in a Metal–Organic Framework: Boosting Electron–Hole Separation via Electron Trap States

HXHai-Qun Xu JHJiahua Hu DWDengke Wang ZLZhaohui Li QZQun Zhang

Fuzhou University

PubMed

Indexed incrossrefpubmed

Abstract

It is highly desirable to convert CO2 to valuable fuels or chemicals by means of solar energy, which requires CO2 enrichment around photocatalysts from the atmosphere. Here we demonstrate that a porphyrin-involved metal-organic framework (MOF), PCN-222, can selectively capture and further photoreduce CO2 with high efficiency under visible-light irradiation. Mechanistic information gleaned from ultrafast transient absorption spectroscopy (combined with time-resolved photoluminescence spectroscopy) has elucidated the relationship between the photocatalytic activity and the electron-hole separation efficiency. The presence of a deep electron trap state in PCN-222 effectively inhibits the detrimental, radiative…

Citation impact

1,147

total citations

FWCI: 31.76
Percentile: 100%
References: 53

Citations per year

Authors

8

Topics & keywords

Topics

Keywords

Chemistry
Electron
Trap (plumbing)
Photochemistry
Boosting (machine learning)
Metal-organic framework
Metal
Visible spectrum

UN Sustainable Development Goals

Affordable and clean energy

No related works found for this paper.