NDLI: Asymmetry and electronic directionality: a means of improving the red/near-IR-light-responsive photoactivity of phthalocyanine-sensitized carbon nitride

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Catalysis Science & Technology Vol - 4 Issue - 8

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Catalysis Science & Technology Vol - 4 Issue - 6

Catalysis Science & Technology Vol - 4 Issue - 5

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Catalysis Science & Technology Vol -1

Asymmetry and electronic directionality: a means of improving the red/near-IR-light-responsive photoactivity of phthalocyanine-sensitized carbon nitride

Content Provider	Royal Society of Chemistry (RSC)
Author	Yu, Lijuan Li, Renjie Zhang, Xiaohu Li, Xingguo Peng, Tianyou
Copyright Year	2014
Abstract	Extremely efficient photocatalytic H2 production with a turnover number (TON) of 25 002 for 20 h over graphitic carbon nitride (g-C3N4) sensitized by zinc phthalocyanines (ZnPcs) with asymmetric and electronic directional structures is successfully carried out under λ ≥ 500 nm light irradiation, and an impressive apparent quantum yield (AQY) higher than 1.0% is obtained under 700 nm monochromatic light irradiation. Based on the photoactivity, photofluorescence (PL), time-resolved fluorescence spectroscopy (TRFS), photocurrent, and electrochemical impedance spectroscopy (EIS) results, it is found that the asymmetry and electronic directionality of ZnPcs can significantly influence the photogenerated electron transfer between ZnPcs and g-C3N4 and further influence the photocatalytic H2 production activity of the phthalocyanine-sensitized g-C3N4 system. The present work exhibits the promising application of phthalocyanine materials in extending red/near-IR light utilization and gives some suggestions and routes for the design and synthesis of phthalocyanine derivatives for solar energy conversion applications.
Starting Page	3251
Ending Page	3260
Page Count	10
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	4
Issue Number	9
Journal	Catalysis Science & Technology
DOI	10.1039/c4cy00516c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Quantum Spectroscopy Phthalocyanine Photocurrent Solar energy Fluorescence Electrochemistry Turnover number Nitride Zinc Graphitic carbon nitride Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Catalysis

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Asymmetry and electronic directionality: a means of improving the red/near-IR-light-responsive photoactivity of phthalocyanine-sensitized carbon nitride

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