Research on the Degradation of BaP with Potassium Ferrate Characterized by Fluorescence
CHEN Yu-zhe1, HE Qiang1,2*, YU Dan-ni1,2, LI Si1,2, TAN Xue-mei1,2
1. School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China 2. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
Abstract：The degradation of Benzo(a)pyrene (BaP) by potassium ferrate was researched by means of multiple fluorescence spectroscopic methods such as synchronous, time-scan, excitation emission matrix (EEM) and photometry, under the optimal condition. Within the degradation process, the characteristics of the BaP’s concentration at different time-intervals, and the kinetics of the degradation of BaP by potassium ferrate were discussed. From the experimental data, both synchronous and EEM spectra’s results showed that the concentration of BaP was reduced 90% by potassium ferrate within 20 s after degradation, and the reaction process was very slow after 60 s. The degradation kinetic equation, ln(F0/Ft)=0.563 2t+0.171 2, (R2=0.994 2), was obtained through a convenient and fast way combining the time-scan fluorescence data and photometry data, and the photometry included the synchronous photometry and emission photometry. According to the kinetic equation, the degradation of BaP by potassium ferrate was in accord with the order of the first order reaction. So this article could provide a very useful conference for the research on the pollutant degradation by potassium ferrate, especially for the degradation process and the degradation mechanisms.
陈雨喆1，何 强1,2*，虞丹尼1,2，黎 司1,2，谭雪梅1,2. 高铁酸钾降解苯并芘的荧光光谱研究[J]. 光谱学与光谱分析, 2012, 32(07): 1842-1845.
CHEN Yu-zhe1, HE Qiang1,2*, YU Dan-ni1,2, LI Si1,2, TAN Xue-mei1,2. Research on the Degradation of BaP with Potassium Ferrate Characterized by Fluorescence. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(07): 1842-1845.
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