Nitrate electro-sorption/reduction in capacitive deionization using a novel Pd/NiAl-layered metal oxide film electrode

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Nitrate electro-sorption/reduction in capacitive deionization using a novel Pd/NiAl-layered metal oxide film electrode
	Qu, Jiuhui; Liu, Huijuan; Liu, Ruiping; Wang, Ting; Dong, Jingjing; Hu, Chengzhi
刊名	CHEMICAL ENGINEERING JOURNAL
	2018-03-01
卷号	335 页码:475-482
关键词	Capacitive deionization Electrosorption Layered double hydroxide Desalination Electroreduction
ISSN号	1385-8947
文献子类	Article
英文摘要	Capacitive deionization (CDI) is a promising candidate for the removal of nitrate (NO3-) from water, but the concentrated waste water inevitably produced in the electrode regeneration process would cause secondary pollution. In the present study, a Pd/NiAl-LMO film electrode was successfully prepared and used as an innovative NO3- electro-sorption/reduction electrode. Metallic Pd nanoparticles were uniformly doped into NiAl-LMO nanosheets, which created a loose porous nanostructure for NO3- electro-sorption and enabled catalytic activity for NO3- electro-reduction. Doping Pd nanoparticles into NiAl-LMO improved electron transport in the film electrode. The Pd/NiAl-LMO film electrode possessed larger specific capacitance and lower ion diffusion resistance than the pristine NiAl-LMO electrode. NO3- was electro-adsorbed by the Pd/NiAl-LMO electrode with concomitant reconstruction of the original hydrotalcite structure by the intercalation of NO3-, then the adsorbed NO3- was electro-reduced to N-2 by atomic H* during the electrode regeneration process. Our study provides not only a novel CDI electrode but also a new concept for a CDI process to achieve a more environmentally friendly outcome.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41390]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Qu, Jiuhui,Liu, Huijuan,Liu, Ruiping,et al. Nitrate electro-sorption/reduction in capacitive deionization using a novel Pd/NiAl-layered metal oxide film electrode[J]. CHEMICAL ENGINEERING JOURNAL,2018,335:475-482.
APA	Qu, Jiuhui,Liu, Huijuan,Liu, Ruiping,Wang, Ting,Dong, Jingjing,&Hu, Chengzhi.(2018).Nitrate electro-sorption/reduction in capacitive deionization using a novel Pd/NiAl-layered metal oxide film electrode.CHEMICAL ENGINEERING JOURNAL,335,475-482.
MLA	Qu, Jiuhui,et al."Nitrate electro-sorption/reduction in capacitive deionization using a novel Pd/NiAl-layered metal oxide film electrode".CHEMICAL ENGINEERING JOURNAL 335(2018):475-482.