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Concurrent destruction strategy: NaNO2-catalyzed, trichlorophenol-coupled degradation of p-nitrophenol using molecular oxygen
Fu, Dongmei1; Peng, Yanrong1; Liu, Renhua2; Zhang, Feifang1; Liang, Xinmiao1,2
关键词Wet Oxidation Sodium Nitrite Wastewater Treatment Fate Of Carbon
刊名CHEMOSPHERE
2009-05-01
DOI10.1016/j.chemosphere.2009.01.082
75期:6页:701-706
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Environmental Sciences
研究领域[WOS]Environmental Sciences & Ecology
关键词[WOS]WET AIR OXIDATION ; SUBSTITUTED PHENOLS ; ACTIVATED CARBON ; AQUEOUS-SOLUTION ; NITRIC-OXIDE ; 4-NITROPHENOL ; PHOTOCATALYSIS ; BIODEGRADATION ; PEROXYNITRITE ; SEPARATION
英文摘要Oxidative degradation of p-nitrophenol (PNP) was investigated with NaNO2 as the catalyst and dioxygen as the oxidizing agent in the presence of trichlorophenol (TCP). Although degradation of PNP alone was proved to be inefficient toward the NaNO2-mediated oxidative degradation system, when PNP in combination with TCP was used as the substrate, NaNO2 showed relatively high catalytic activity for eradicating both PNP and TCP with molecular oxygen. Reaction conditions to the degradation system, e.g., temperatures, reaction time, pH, NaNO2 and TCP concentrations were optimized. PNP could be highly efficiently degraded in the NaNO2/TCP/O-2 system (more than 99% removal for PNP) and the TOC removal of the mixture of PNP and TCP could reach 71% at 150 degrees C, 0.5 MPa oxygen pressure. Degradation products were determined, and 93% carbon atom was clarified. A plausible overall mechanism for the formation of active species is described, in which peroxylnitrite was believed to be a dominating active intermediate being responsible for destroying the substrates, PNP and TCP. The novel NaNO2-based concurrent oxidation system for PNP and TCP provides a potential application in treatment of multi-component industrial effluents. (c) 2009 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000266145600001
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141462
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.E China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China
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GB/T 7714
Fu, Dongmei,Peng, Yanrong,Liu, Renhua,et al. Concurrent destruction strategy: NaNO2-catalyzed, trichlorophenol-coupled degradation of p-nitrophenol using molecular oxygen[J]. CHEMOSPHERE,2009,75(6):701-706.
APA Fu, Dongmei,Peng, Yanrong,Liu, Renhua,Zhang, Feifang,&Liang, Xinmiao.(2009).Concurrent destruction strategy: NaNO2-catalyzed, trichlorophenol-coupled degradation of p-nitrophenol using molecular oxygen.CHEMOSPHERE,75(6),701-706.
MLA Fu, Dongmei,et al."Concurrent destruction strategy: NaNO2-catalyzed, trichlorophenol-coupled degradation of p-nitrophenol using molecular oxygen".CHEMOSPHERE 75.6(2009):701-706.
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