蒙脱石纳米复合物吸附PAEs的影响.pdf

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1、第66卷第3期化工学报Vb1．66NO．32015年3月CIESCJournalMarch2015一研一一究一一简一季铵一R报盐2n一链长及用量对CTA+／蒙脱石纳米复合物吸附PALEs的影响李莉，-，孙红娟，彭同江，(西南科技大学固体废物处理与资源化省部共建教育部重点实验室，四川绵阳621010；西南科技大学矿物材料及应用研究所，四川绵阳621010)摘要：用具有相同结构但不同烷基碳链长度的系列季铵盐制得CTA／蒙脱石纳米复合物，并对水溶液中邻苯二甲酸酯进行吸附实验。探讨了季铵盐烷基碳链链长和用

2、量对制得的CTA／蒙脱石纳米复合物吸附水溶液中PAEs效果的影响。结果表明：CTA蒙脱石纳米复合物能有效地吸附溶液中的PAEs，季铵盐烷基碳链链长及用量均对CTA／蒙脱石纳米复合物的吸附效果产生影响。当季铵盐用量较低时，随着季铵盐烷基链长的增加，PAEs的吸附去除率增加；增大季铵盐用量，随着季铵盐烷基链长的增加，PAEs的吸附去除率先增大后减小。关键词：季铵盐；CTA+／蒙脱石纳米复合物；纳米结构；邻苯二甲酸酯；水溶液；吸附DOI：10．11949~．issn．0438—1157．20141376

3、中图分类号：X705；X506文献标志码：A文章编号：0438一l157(2015)03一l042—09EffectofchainlengthandamountofquaternaryammoniumsaltsonC／montmorillonitenanocompositesadsorptionofPAEsLILi，SUNHongjuan，PENGTongjiang，(IKeyLaboratoryofMinistryofEducationforSolidWasteTreatmentandResou

4、rceRecycle，SouthwestUniversityofScienceandTechnology，Mianyang621010，Sichuan，China；2InstituteofMineralMaterials&Application，SouthwestUniversityofScienceandTechnology，Mianyang621010，Sichuan，China)Abstract：Quaternaryammoniumsaltscationandmontmorilloniten

5、anocomposites(CTA／montmorillonitenanocomposites)werepreparedfromaseriesofquatemaryammoniumsaltswiththesamestructurebutdifferentalkylcarbonchainlengthstoadsorbphthalateester(PAEs)inaqueoussolution．TheefectsofC"TA十／montmorillonitenanocompositespreparedw

6、ithdiferentalkylcarbonchainlengthsandamountsofquaternaryammoniumsaltsonPAEsadsorptioneficiencywereinvestigated．C／montmorillonitenanocompositesas—preparedcouldadsorbPAEsefectively．Alkylcarbonchainlengthandamountofquaternaryammoniumsaltsbothafectedadsor

7、ptionresults．Atasmalleramountofquaternaryammoniumsalts，theadsorptionremovalofPAEsincreasedwithincreasingalkylchainlengthofquaternaryamoniumsalts．However,atalargeramountofquaternaryammoniumsalts，theadsorptionremovalofPAEsincreasedfirstlyandthendecrease

8、dwithincreasingalkylchainlengthofquaternaryamoniumsalts．Keywords：quaternaryammoniumsalts；C"TA／montmorillonitenanocomposites；nanostructure；phthalicesters；aqueoussolution；adsorption2Ol4．09．15收到初稿，2014．11．15收到修改稿。Reeeiveddate：2O14-09—15联系人：孙红娟。第一