Biological catalyzed denitrification by a functional electropolymerization biocarrier modified by redox mediator

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Biological catalyzed denitrification by a functional electropolymerization biocarrier modified by redox mediator
	Liu, Huijuan ; Guo, Jianbo ; Qu, Jiuhui ; Lian, Jing ; Guo, Yankai ; Jefferson, William ; Yang, Jingliang
刊名	Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
	2012
卷号	107 期号:1 页码:144-150
关键词	Functional electropolymerization biocarrier Redox mediator Anthraquinone-2-sulfonate (AQS) Denitrification
ISSN号	0960-8524
中文摘要	Electropolymerization biocarriers were prepared by the electropolymerization of polypyrrole (PPy) on an active carbon felt (ACF) electrode using doping anions anthraquinone-2-sulfonate (AQS) or Na2SO4. The functional electropolymerization biocarrier (ACF/PPy/AQS) with AQS was used as an immobilized redox mediator for the denitrification process. The characteristics of the electropolymerization biocarriers were analyzed by scanning electron microscope, elemental analyses, Fourier transform infrared (FTIR) spectroscopy and Raman spectroscopy. The results suggested that the denitrification efficiency increased nearly 1.5-fold with ACF/PPy/AQS (0.04 mmol L-1 AQS) compared to the control. A linear correlation was found for the k value and the AQS concentration (C-AQS), which was k = 624.71C(AQS) + 83.87 (R-2=0.9893). The ORP value stabilized around -200 mV for the denitrification process with ACF/PPy/AQS, which was -25 mV lower than that with ACF/PPy/Na2SO4. Repeated-batch operations indicated that the denitrification efficiency with ACF/PPy/AQS maintained over 90% of the original value and exhibited better catalytic activity and durability. (C) 2011 Elsevier Ltd. All rights reserved.
WOS记录号	WOS:000301620600020
公开日期	2014-11-28
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/8115]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Liu, Huijuan,Guo, Jianbo,Qu, Jiuhui,et al. Biological catalyzed denitrification by a functional electropolymerization biocarrier modified by redox mediator[J]. Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels,2012,107(1):144-150.
APA	Liu, Huijuan.,Guo, Jianbo.,Qu, Jiuhui.,Lian, Jing.,Guo, Yankai.,...&Yang, Jingliang.(2012).Biological catalyzed denitrification by a functional electropolymerization biocarrier modified by redox mediator.Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels,107(1),144-150.
MLA	Liu, Huijuan,et al."Biological catalyzed denitrification by a functional electropolymerization biocarrier modified by redox mediator".Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels 107.1(2012):144-150.