文献类型：期刊文献

英文题名：Sulfate radical induced degradation of β2-adrenoceptor agonists salbutamol and Terbutaline: Implication of halides, bicarbonate, and natural organic matter

作者：Zhou, Lei[1,2,3];Yan, Chenzhi[1];Sleiman, Mohamad[4];Ferronato, Corinne[3];Chovelon, Jean-Marc[3];Wang, Xingbao[5];Richard, Claire[4]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]Univ Lyon, Univ Claude Bernard Lyon 1, CNRS, IRCELYON, 2 Ave Albert Einstein, F-69626 Villeurbanne, France;[4]Univ Clermont Auvergne, CNRS, Sigma Clermont, Inst Chim Clermont Ferranti, F-63178 Aubiere, France;[5]Taiyuan Univ Technol, Training Base State Key Lab Coal Sci & Technol Jo, Taiyuan 030024, Shanxi, Peoples R China

年份：2019

卷号：368

起止页码：252

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20190906566458);WOS:【SCI-EXPANDED(收录号:WOS:000462769600024)】；

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant No. 21806037).

语种：英文

外文关键词：SR-AOPs; Salbutamol; Terbutaline; Reactive bromine species; Laser flash photolysis

摘要：The presence of inorganic ions and organic matter in natural water would cause unpredictable consequence on the oxidation efficiency and pathways of sulfate radical (SO4 center dot-) based advanced oxidation process (SR-AOPs). In this study, the impacts of water constituents, namely, halides (including chloride (Cl-) and bromide (Br-)), bicarbonate (HCO3-) and natural organic matter (NOM) on SO4 center dot- induced degradation of salbutamol (SAL) and terbutaline (TBL) were evaluated systematically. Our results indicated that chloride exhibited no effect on oxidation efficiencies of SAL and TBL, while Br-, HCO3- and NOM all showed inhibitory effects. Specifically, the detrimental effect of bromide was mainly attributed to the scavenging of SO4 center dot- to form the less reactive species, Br-2(center dot-). By using laser flash photolysis (LFP), the second-order rate constants of Br-2(center dot-) with SAL and TBL were estimated to be 2.1 and 3.9x10(8)M(-1) s(-1), respectively, much smaller than those with SO4 center dot- (3.7x10(9)M(-1) s(-1) for SAL and 4.2x10(9)M(-1) s(-1) for TBL). Moreover, bromine addition products of SAL and TBL were detected in the presence of Br-, which were believed to be more toxic than the parent compounds. Similar to bromide, HCO3- could also quench SO4 center dot- to generate carbonate radical (CO3 center dot-), also less reactive than sulfate radical with SAL (4.8x10(7)M(-1) s(-1)) and TBL (3.2x10(8)M(-1) s(-1)). In the case of NOM, a light screening effect was regarded as the major factor responsible to the decrease of reaction rates, while sulfate