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环境化学  2015 

针铁矿催化氧化溴酚生成羟基多溴联苯醚和溴代二噁英

Keywords: 针铁矿,羟基多溴联苯醚,溴代二噁英,耦合反应

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Abstract:

探究了针铁矿催化转化溴酚(2,4-DBP或2,4,6-TBP)生成羟基化多溴联苯醚(HO-PBDEs)和溴代二噁英(PBDD/Fs)的可能性.结果表明,针铁矿可以在常温和干反应条件下有效地催化转化溴酚化合物生成HO-PBDEs和PBDD/Fs.反应16d,97.3%的2,4-DBP被针铁矿氧化转化,其中2.4%被转化为2'-OH-BDE-68,2.8%被转化为2,2'-OH-BB-80,0.2%被转化1,3,8-TrBDD,0.4%被转化为2,4,6,8-TeBDF.同样的反应时间内,98.7%的2,4,6-TBP被针铁矿氧化转化,反应产物可能为2'-OH-BDE-121、4'-OH-BDE-121、1,3,6,8-TeBDD和1,3,7,9-TeBDD.根据检测到的产物,提出了针铁矿氧化转化溴酚的可能途径.

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