科研动态

王飞鸽同学(胡真虎研究组)在国际SCI刊物发表论文

发布日间:2017-08-17   浏览次数:324

我系胡真虎教授研究组研究生王飞鸽同学题为“Comparison of UV/H2O2 and UV/PS processes for the degradation of thiamphenicol in aqueous solution” 的论文被国际期刊《Journal of Photochemistry and Photobiology A: Chemistry》接收发表。摘要如下:

       Thiamphenicol (TAP) has been widely used in aquaculture to prevent bacterial diseases. However, this drug exhibits toxic side effects on the haemopoietic system. The removal of residual TAP in wastewater in advanced oxidation processes (AOPs) was rarely reported before. In this study, degradation of TAP in aqueous solution by UV alone, UV/H2O2 and UV/PS processes was investigated. The results showed that UV/H2O2 and UV/PS significantly enhanced the degradation compared to UV alone. The TAP degradation followed a pseudo-first-order kinetics pattern well. The kobs declined with the increase of the initial TAP concentration, and increased with increasing oxidant dosage. The TAP degradation with UV/H2O2 process was favorable under neutral and acidic conditions, and with UV/PS process was favorable under acidic and alkaline conditions. HCO3- markedly inhibited the degradation with the both processes, NO3- had a slight inhibition on the degradation in UV/H2O2 system, and Cl- significantly enhanced the degradation with UV/PS process. HA markedly inhibited the degradation with the both processes. SO4-˖ played the main role in the TAP degradation by UV/PS process. When TAP was completely degraded, only part of TAP was mineralized with UV/H2O2 process, and was totally mineralized with UV/PS process. The possible degradation pathways were proposed based on the intermediate products obtained by LC-TOF-MS analysis. The electrical energy per order (EE/O) analysis showed that UV/PS process was a less energy consumption process. The results from this study revealed that UV/PS process was a cost-effective process in the degradation of TAP.


论文链接:http://www.sciencedirect.com/science/article/pii/S1010603017307943