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合成并表征了3种不同烷基链长的1-烷基-3-甲基咪唑双三氟甲基磺酰亚胺([CnMIm]NTf_2,n=2、4、6)离子液体及金属催化剂双三氟甲基磺酰亚胺铁二水合物(Fe(NTf_2)_2·2H_2O),对H_2O_2/离子液体消毒芥子气模拟剂2-氯乙基乙基硫醚(CEES)的能力进行了研究.通过HPLC考察了H_2O_2/CEES摩尔比、H_2O_2浓度、反应温度、时间、离子液体再生次数对H_2O_2/[EMIm]NTf_2/Fe~(2+)消毒CEES能力的影响,并采用GC-MS、CL对反应产物、活性氧物种及反应机制进行了分析.结果表明:基于离子液体的类Fenton体系消毒CEES时,具有H_2O_2/CEES摩尔比小、消毒速率快、低温消毒效果良好、离子液体可循环利用等的优点,在毒剂洗消领域具有极大的应用前景.
Three kinds of 1-alkyl-3-methylimidazolium bistrifluoromethanesulfonimide ([CnMIm] NTf_2, n = 2,4,6) ionic liquids and metal catalysts were synthesized and characterized (Fe (NTf 2) 2 · 2H 2 O) bis (trifluoromethylsulfonyl) imide iron dihydrate, the ability of H_2O_2 / ionic liquid to sterilize 2-chloroethyl ethyl sulfide (CEES) The effects of H 2 O 2 / CEES molar ratio, H 2 O 2 concentration, reaction temperature, time and ionic liquid regeneration times on the CEES ability of H 2 O 2 / [EMIm] NTf 2 / Fe 2+ disinfection were investigated by HPLC. GC-MS and CL Reaction products, reactive oxygen species and reaction mechanism were analyzed.The results showed that: when Fenton-like system based on ionic liquid disinfects CEES, the molar ratio of H 2 O 2 to CEES is small, the disinfection rate is fast, the disinfection effect is good at low temperature, the ionic liquid can be recycled and so on The merits of decontamination in the field has a great application prospects.