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

doi:10.1039/c4cy00516c

CORC > 化学研究所 > 中国科学院化学研究所

	Asymmetry and electronic directionality: a means of improving the red/near-IR-light-responsive photoactivity of phthalocyanine-sensitized carbon nitride
	Zhang, Xiaohu 1; Yu, Lijuan 1; Li, Renjie 1; Peng, Tianyou 1; Li, Xingguo 2
刊名	CATALYSIS SCIENCE & TECHNOLOGY
	2014
卷号	4 期号:9 页码:3251-3260
ISSN号	2044-4753
DOI	10.1039/c4cy00516c
英文摘要	Extremely efficient photocatalytic H-2 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 lambda >= 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 H-2 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.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000340208400054
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52883]
专题	中国科学院化学研究所
通讯作者	Zhang, Xiaohu
作者单位	1.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China 2.Peking Univ, BNLMS, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaohu,Yu, Lijuan,Li, Renjie,et al. Asymmetry and electronic directionality: a means of improving the red/near-IR-light-responsive photoactivity of phthalocyanine-sensitized carbon nitride[J]. CATALYSIS SCIENCE & TECHNOLOGY,2014,4(9):3251-3260.
APA	Zhang, Xiaohu,Yu, Lijuan,Li, Renjie,Peng, Tianyou,&Li, Xingguo.(2014).Asymmetry and electronic directionality: a means of improving the red/near-IR-light-responsive photoactivity of phthalocyanine-sensitized carbon nitride.CATALYSIS SCIENCE & TECHNOLOGY,4(9),3251-3260.
MLA	Zhang, Xiaohu,et al."Asymmetry and electronic directionality: a means of improving the red/near-IR-light-responsive photoactivity of phthalocyanine-sensitized carbon nitride".CATALYSIS SCIENCE & TECHNOLOGY 4.9(2014):3251-3260.