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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Feng, Huajun Liang, Yuxiang Cong, Yanqing Long, Yuyang Guo, Kun Shen, Dongsheng |
| Description | Author Affiliation: Feng H ( School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China); Liang Y ( School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China); Guo K ( Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium.); Long Y ( School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China); Cong Y ( School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China. Electronic address: yqcong@hotmail.com.); Shen D ( School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China) |
| Abstract | This study introduces a novel approach that uses the interaction of pollutants with added nitrite to produce diazonium salts, which cause in situ self-assembly of the pollutants on carbon electrodes, to improve their 2-fluoroaniline (2-FA) defluorination and removal performance. The 2-FA degradation performance, electrode properties, electrochemical properties and degradation pathway were investigated. The reactor containing NO2(-) achieved a 2-FA removal efficiency of 90.1% and a defluorination efficiency of 38% within 48 h, 1.4 and 2.3 times higher than the corresponding results achieved without NO2(-), respectively. The residual NO2(-) was less than 0.5mg/L in the reactor containing added NO2(-), which would not cause serious secondary pollution. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) results proved that the carbon anode surface was successfully modified with benzene polymer, and electrochemical tests confirmed that the electrochemical activity of the modified anode was enhanced significantly. The C-F bond was weakened by the effect of the positive charge of the benzenediazonium groups, and the high electrochemical activity of the carbon anode enhanced the electrochemical performance of the system to accelerate defluorination. Thus, the present electrical method involving nitrite nitrogen is very promising for the treatment of wastewater containing fluoroaniline compounds. |
| ISSN | 03043894 |
| Journal | Journal of Hazardous Materials |
| Volume Number | 300 |
| e-ISSN | 18733336 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-12-30 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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