Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
585176 | Journal of Hazardous Materials | 2006 | 7 Pages |
Abstract
Photodegradation of nitrobenzene (NB) using an excimer UV lamp at a wavelength of 172Â nm is investigated. Experimental results show that high concentration nitrobenzene can be efficiently degraded with irradiation by excimer UV lamp, and confirm that degradation of nitrobenzene is more efficient by UV/H2O2 combination than UV only. In the case of using UV only, 60Â min of treatment was found to be sufficient to degrade the major part of NB solution with a concentration of less than 4Â mM. In the case of using the combination of UV/H2O2 with a H2O2 concentration of 7:1 molar ratio to NB, 4.07Â mM NB solution drastically decreased to 0.41Â mM after treatment for only 20Â min. Degradation intermediate products are identified by analyzing the degradation products with GC/HRMS and possible degradation pathways of nitrobenzene are suggested.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Health and Safety
Authors
Qian-Rong Li, Cheng-Zhi Gu, Yan Di, Hao Yin, Jun-Ying Zhang,