气候变化领域集成服务门户(CCPortal): Ultrafast recovery of aqueous uranium: Photocatalytic U(VI) reduction over CdS/g-C3N4

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DOI	10.1016/j.cej.2021.131552
	Ultrafast recovery of aqueous uranium: Photocatalytic U(VI) reduction over CdS/g-C3N4
	Li, Ping; Wang, Jingjing; Wang, Yun; Dong, Liang; Wang, Wei; Geng, Rongyue; Ding, Zhe; Luo, Dongxia; Pan, Duoqiang; Liang, Jianjun; Fan, Qiaohui
通讯作者	Fan, QH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	1385-8947
EISSN	1873-3212
卷号	425
英文摘要	The photocatalysis can be used as an effective strategy for separating aqueous uranium. However, the low reaction efficiency of the photocatalytic system in open air strongly restrained its practical application. In this study, CdS/g-C3N4 nanocomposites were developed for reducing U(VI) under visible-light. Remarkably high photocatalytic efficiency was realized without the aid of any electron sacrifice, where uranyl was reduced to U (IV) only within 6 min, being the fastest among the ever-reported researches. CdS/CN-33 showed an optimal reaction rate of 0.641 min(-1), being 9.67 and 64.10 times of that for pristine CdS and g-C3N4, respectively. Most importantly, a satisfying performance was achieved for the photocatalytic U(VI) reduction in open air, as well as under solar irradiation and a 4 W LED lamp. The extraction capacity for uranium reached 2,379 mg/g, and the recycled CdS/g-C3N4 nanocomposites could keep high stability and activity.
关键词	VISIBLE-LIGHT CARBON NITRIDE G-C3N4 HETEROJUNCTION REMOVAL TIO2 ADSORPTION SYSTEMS
英文关键词	Photocatalysis; g-C3N4; CdS; Uranium; Reduction
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000707126000238
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/254034
作者单位	[Li, Ping; Wang, Jingjing; Wang, Yun; Wang, Wei; Geng, Rongyue; Ding, Zhe; Luo, Dongxia; Liang, Jianjun; Fan, Qiaohui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; [Li, Ping; Wang, Jingjing; Wang, Yun; Wang, Wei; Geng, Rongyue; Ding, Zhe; Luo, Dongxia; Liang, Jianjun; Fan, Qiaohui] Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China; [Wang, Jingjing; Pan, Duoqiang] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China; [Dong, Liang] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621000, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Li, Ping,Wang, Jingjing,Wang, Yun,et al. Ultrafast recovery of aqueous uranium: Photocatalytic U(VI) reduction over CdS/g-C3N4[J]. 中国科学院西北生态环境资源研究院,2021,425.
APA	Li, Ping.,Wang, Jingjing.,Wang, Yun.,Dong, Liang.,Wang, Wei.,...&Fan, Qiaohui.(2021).Ultrafast recovery of aqueous uranium: Photocatalytic U(VI) reduction over CdS/g-C3N4.CHEMICAL ENGINEERING JOURNAL,425.
MLA	Li, Ping,et al."Ultrafast recovery of aqueous uranium: Photocatalytic U(VI) reduction over CdS/g-C3N4".CHEMICAL ENGINEERING JOURNAL 425(2021).