Microfluidic-enhanced 3-D photoanodes with free interfacial energy barrier for photoelectrochemical applications

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

	Microfluidic-enhanced 3-D photoanodes with free interfacial energy barrier for photoelectrochemical applications
	Gu, Zhenao ; An, Xiaoqiang ; Lan, Huachun ; Tian, Yu ; Zhang, Jinxing ; Liu, Ruiping ; Liu, Huijuan ; Qu, Jiuhui
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2019-05-05
卷号	244 页码:740-747
关键词	Flow-through photoanodes Internal electrostatic field Schottky barrier Mass transfer Photoelectrochemical
ISSN号	0926-3373
英文摘要	The sluggish reaction kinetics and poor interfacial mass transfer seriously limit the industrial applications of planar photoelectrocatalytic devices. Here, the principle of 3-D flow-through photoanodes with free interfacial barrier for electron transfer and microfluidic channels for reactant transportation was demonstrated. Owing to the epitaxial growth of anisotropic ZnO nanorods with internal electrostatic field onto carbon cloth (CC), the spatial separation of photo-induced charge carriers was realized. Experimental characterizations confirmed the formation of Schottky-barrier-free interface with low electrical resistance for electron transfer, resulting in the significantly decreased onset potential. Compared to traditional planar FTO/ZnO photoanodes, flow-through CC/ZnO photoanodes exhibited 4 times (for Rhodamine B) and 3 times (for bisphenol A) higher degradation kinetics. Fluid dynamics simulation suggested that the flow-through mode greatly enhanced the microscale velocity magnitude and the mass transfer of reactants. Thus, this work presents an ideal platform for the design of 3-D microfluidic-enhanced system for photoelectrochemical applications.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43488]
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
作者单位	1.Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 3.Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Ctr Water & Ecol, Sch Environm, Beijing 100084, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gu, Zhenao,An, Xiaoqiang,Lan, Huachun,et al. Microfluidic-enhanced 3-D photoanodes with free interfacial energy barrier for photoelectrochemical applications[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,244:740-747.
APA	Gu, Zhenao.,An, Xiaoqiang.,Lan, Huachun.,Tian, Yu.,Zhang, Jinxing.,...&Qu, Jiuhui.(2019).Microfluidic-enhanced 3-D photoanodes with free interfacial energy barrier for photoelectrochemical applications.APPLIED CATALYSIS B-ENVIRONMENTAL,244,740-747.
MLA	Gu, Zhenao,et al."Microfluidic-enhanced 3-D photoanodes with free interfacial energy barrier for photoelectrochemical applications".APPLIED CATALYSIS B-ENVIRONMENTAL 244(2019):740-747.