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DOI	10.1016/j.cej.2022.134998
	Effective visible-light catalysis triggered by the orbital coupling and carrier transfer in alpha-phase phthalocyanine/graphene oxide van der Waals heterostructure
	Liang, Jianjun; Lu, Zhuanhong; Ding, Zhe; Zhang, Wentao; Li, Yuqiang; Yu, Jie; Wang, Yun; Li, Ping; Fan, Qiaohui
通讯作者	Fan, QH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. ; Fan, QH (通讯作者)，Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2022
ISSN	1385-8947
EISSN	1873-3212
卷号	435
英文摘要	The application of graphene oxide (GO) in the photoelectronic materials are greatly restricted by the ineffective carrier separation and mobility, as well as the poor utilization of visible light. In this study, a strategy is proposed to overcome these disadvantages via the fabrication of van der Waals heterostructure. The target heterostructure, Pc-GO, is prepared by the simple assembly of alpha-phase phthalocyanine (alpha-H2Pc) and GO in water. The energy degeneration is observed between pi orbital of alpha-H2Pc and valence band of GO, which acts as the channel for transferring the photogenerated electrons from H2Pc to GO. Interestingly, electron transfer becomes more remarkable with the decreasing H2Pc layers. The Fermi level of the heterostructure is thus engineered. Fast mobility of carriers is also demonstrated by the spectroscopic technologies and electrochemical methods. Based on these advantages, the effective photocatalytic detoxication of As(III) is realized by Pc-GO without any electrons/holes sacrifices or additional degassing, and the average reaction rate is 0.68 mg g(-1)h(-1). Especially, Pc-GO suggests an excellent photocatalytic activitty in the range of visible light, and 53.1% of the activity is maintained in contrast to that under the full spectrum. Pc-GO even remains 22 % of photocatalytic property after wrapped by a A4 printing paper, which is essential for the practical application of Pc-GO in natural muddy water. Moreover, the visible-light catalysis of Pc-GO is demonstrated to correlate with the unique alpha-H2Pc stacks. This work extends the preparation strategies of As(III) remediation materials, and promises a possible method to engineer the photoelectric properties of the device via changing the arrangement of two-dimensional semiconductor.
关键词	METAL-FREE PHTHALOCYANINE GRAPHENE OXIDE ORGANIC SEMICONDUCTORS FILMS CRYSTALLINE SPECTRA
英文关键词	Orbital coupling; Carrier transfer; Visible-light catalysis; van der Waals heterostructure; The detoxication of As(III)
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000773586700002
来源期刊	CHEMICAL ENGINEERING JOURNAL
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253712
作者单位	[Liang, Jianjun; Lu, Zhuanhong; Ding, Zhe; Zhang, Wentao; Li, Yuqiang; Wang, Yun; Li, Ping; Fan, Qiaohui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Liang, Jianjun; Ding, Zhe; Zhang, Wentao; Wang, Yun; Li, Ping; Fan, Qiaohui] Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China; [Lu, Zhuanhong; Yu, Jie] Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Liang, Jianjun,Lu, Zhuanhong,Ding, Zhe,et al. Effective visible-light catalysis triggered by the orbital coupling and carrier transfer in alpha-phase phthalocyanine/graphene oxide van der Waals heterostructure[J]. 中国科学院西北生态环境资源研究院,2022,435.
APA	Liang, Jianjun.,Lu, Zhuanhong.,Ding, Zhe.,Zhang, Wentao.,Li, Yuqiang.,...&Fan, Qiaohui.(2022).Effective visible-light catalysis triggered by the orbital coupling and carrier transfer in alpha-phase phthalocyanine/graphene oxide van der Waals heterostructure.CHEMICAL ENGINEERING JOURNAL,435.
MLA	Liang, Jianjun,et al."Effective visible-light catalysis triggered by the orbital coupling and carrier transfer in alpha-phase phthalocyanine/graphene oxide van der Waals heterostructure".CHEMICAL ENGINEERING JOURNAL 435(2022).