Duan Lun-chao, Wang Feng-he, Zhao Bin, Chen Ya-jun
Huan Jing Ke Xue. 2016 Jan 15;37(1):198-207.
Effects of ciprofloxacin hydrochloride (CIP) initial concentration, Pb (NO3) 2, Cd (NO3) 2, PbCl2 and CdCl2 on the photodegradation of CIP using UV irradiation were investigated. The experiments results showed that UV irradiation could lead to effective removal of CIP, but there was no CIP degradation in dark. The photodegradation rate of CIP reduced with increasing initial concentration under UV irradiation. Pb(NO3)2 and Cd(NO3)2 (except for the experiment group of 0.006 mmol x L(-1)) could enhance CIP photodegradation, and the half-life of CIP gradually increased with increasing molar ratio between heavy metal and CIP ( with the decreasing concentration of nitrate). With increasing molar ratio (with the decreasing concentration of chlorate), PbCl2 and CdCl2 first promoted and then inhibited the CIP photodegradation.
研究了盐酸环丙沙星(CIP)初始浓度、Pb(NO₃)₂、Cd(NO₃)₂、PbCl₂和CdCl₂对紫外光照射下CIP光降解的影响。实验结果表明,紫外光照射可有效去除CIP,但在黑暗中CIP无降解。在紫外光照射下,CIP的光降解速率随初始浓度的增加而降低。Pb(NO₃)₂和Cd(NO₃)₂(0.006 mmol·L⁻¹实验组除外)可增强CIP光降解,且CIP的半衰期随重金属与CIP摩尔比的增加(硝酸盐浓度降低)而逐渐增加。随着摩尔比的增加(氯酸盐浓度降低),PbCl₂和CdCl₂对CIP光降解先促进后抑制。