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时间:2019-05-18
《甲萘酚和甲萘胺在超高交联吸附树脂上的协同吸附行为》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、维普资讯http://www.cqvip.com2第00267年卷4第月4期环境科学Vo1.27.No.4ENVIRONMENTALSCIENCEApr.,2006甲萘酚和甲萘胺在超高交联吸附树脂上的协同吸附行为张炜铭,陈金龙,张全兴,潘丙才,鲁俊东,(1.南京大学环境学院污染控制与资源化国家重点实验室,南京210093;2.江苏省有机毒物控制与资源化工程技术研究中心,南京210038)摘要:研究了水溶液中甲萘酚和甲萘胺在超高交联吸附树脂NDA103、NDA100上的协同吸附行为,实验结果表明,
2、在较高平衡浓度范围内该吸附树脂对双组分水溶液中甲萘酚和甲萘胺双组分(摩尔比分别为3:1、l:1、1:3)的吸附总量大于相同平衡浓度下对单组分水溶液中甲萘酚和甲萘胺的吸附量,呈现协同吸附现象,其主导机制是2种吸附质分子之间的氢键作用.单组分甲萘酚或甲萘胺水溶液和双组分共存水溶液中吸附质分子在吸附树脂上的吸附等温线均符合Langmuir模型.吸附温度由293K升至313K时,甲萘酚和甲萘胺在NDA103上的协同吸附效应的变化明显大于NDA100.NDA103树脂结构上的胺基既加强了对甲萘酚的吸附亲和
3、力又增加了甲萘酚的协同吸附系数.关键词:超高交联吸附树脂;甲萘酚;甲萘胺;协同吸附中图分类号:X131.3文献标识码:A文章编号:02503301(2006)04072705CooperativeAdsorptionof1-Naphtholand1-NaphthylamineontoHyper-Cross-LinkedPolymericAdsorbentsZHANGWei—ruing一,CHENJin—long’,ZHANGQuan—xing一,PANBing—cai1I,LUJun—dong,
4、(1.StateKeyLaboratoryofPollutionControlandResourcesReuse,SchooloftheEnvironment,NanjingUniversity,Nanjing210093,China;2.ResearchCenterforEngineeringTechnologyofOrganicPoisonControlandResourcesReuseinJiangsuProvince,Nanjing210038,China)Abstract:Cooper
5、ativesimultaneousadsorptionsof1-naphtholand1-naphthylaminefromaqueoussolutionsonhyper..cross.1inkedpolymericadsorbents(NDA103andNDA100)wereinvestigated.Theresultsindicatethatatthehigherequilibriumconcentrations,thetotaluptakeamountsof1naphtholand1nap
6、hthylamineinbinarysystems(1-naphthol:1-naphthylamine=3:1,1:1,1:3)areobviouslargerthanthepureuptakeamountsinsinglesystems,andalargeexcesswasnotedontheparticlesurfaceatsaturation,whichispresumablyduetOthecoperativeeffectprimarilyarisenfromthehydrogenbo
7、ndingorweakacid.baseinteractionbetween1.naphtholand1-naphthylamine.TheadsorptionisothermsfortheminbothsingleandbinarysystemscanbewellfittedbyLangmuirequation.Theincreasingtemperaturefrom293Kto313Kputsmuchmoreeffectonthecoperativecoefficientofsimultan
8、eousadsorptionof1一naphthylamineand1-naphtholonNDA103thanonNDA100.TheaminogroupsonNDA103enhancetheadsorptionaffinityaswellasthecoperativecoefficientof1-naphtho1.Keywords:hyper—cross—linkedpolymericadsorbent;1Naphthol:1-Naphthylamine;coperativeadsorpti
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