宁波大学学报（理工版）
寧波大學學報（理工版）
저파대학학보（리공판）
JOURNAL OF NINGBO UNIVERSITY(NSEE)
2006年
4期
503-508
,共6页
羧甲基交联壳聚糖树脂%Pb(Ⅱ)%Cu(Ⅱ)%Zn(Ⅱ)%表征%吸附机理
羧甲基交聯殼聚糖樹脂%Pb(Ⅱ)%Cu(Ⅱ)%Zn(Ⅱ)%錶徵%吸附機理
최갑기교련각취당수지%Pb(Ⅱ)%Cu(Ⅱ)%Zn(Ⅱ)%표정%흡부궤리
carboxymethyl cross-linked chitosan resin%Pb(Ⅱ)%Cu(Ⅱ)%Zn(Ⅱ)%resin structure characterization%sorption mechanism
羧甲基交联壳聚糖树脂(C-C-CTS)与普通壳聚糖树脂相比,既能在酸性介质中不溶又不失去其螯合性能.其合成采用简单的2步法,首先用还氧氯丙烷交联,然后羧甲基化.C-C-CTS的结构用红外光谱和X-ray光电子能谱进行表征.C-C-CTS树脂对重金属离子有很好的螯合吸附能力,每种树脂对Pb(Ⅱ),Cu(Ⅱ)和Zn(Ⅱ)的吸附能力分别为8.73,10.12和4.89 mg·g-1,并且在不同的pH条件下对Pb(Ⅱ)、Cu(Ⅱ)和Zn(Ⅱ)有很好的选择性吸附,最后还讨论了C-C-CTS树脂对Pb(Ⅱ)的吸附机理.
羧甲基交聯殼聚糖樹脂(C-C-CTS)與普通殼聚糖樹脂相比,既能在痠性介質中不溶又不失去其螯閤性能.其閤成採用簡單的2步法,首先用還氧氯丙烷交聯,然後羧甲基化.C-C-CTS的結構用紅外光譜和X-ray光電子能譜進行錶徵.C-C-CTS樹脂對重金屬離子有很好的螯閤吸附能力,每種樹脂對Pb(Ⅱ),Cu(Ⅱ)和Zn(Ⅱ)的吸附能力分彆為8.73,10.12和4.89 mg·g-1,併且在不同的pH條件下對Pb(Ⅱ)、Cu(Ⅱ)和Zn(Ⅱ)有很好的選擇性吸附,最後還討論瞭C-C-CTS樹脂對Pb(Ⅱ)的吸附機理.
최갑기교련각취당수지(C-C-CTS)여보통각취당수지상비,기능재산성개질중불용우불실거기오합성능.기합성채용간단적2보법,수선용환양록병완교련,연후최갑기화.C-C-CTS적결구용홍외광보화X-ray광전자능보진행표정.C-C-CTS수지대중금속리자유흔호적오합흡부능력,매충수지대Pb(Ⅱ),Cu(Ⅱ)화Zn(Ⅱ)적흡부능력분별위8.73,10.12화4.89 mg·g-1,병차재불동적pH조건하대Pb(Ⅱ)、Cu(Ⅱ)화Zn(Ⅱ)유흔호적선택성흡부,최후환토론료C-C-CTS수지대Pb(Ⅱ)적흡부궤리.
The carboxymethyl cross-linked chitosan resin (C-C-CTS), which remained stable in acidic medium and did not lose its chelation property comparing with ordinary chitosan resin, was synthesized by simple two-step procedures. Chitosan was cross-linked by epoxy chlorinated propane first, then carboxy methylated. The structure of C-C-CTS was conformed by infrared and X-ray photoelectron spectroscopy. The C-C-CTS resin has good chelated sorption affinity for heavy metal ions. The sorption capacities of C-C-CTS for Pb (Ⅱ), Cu (Ⅱ) and Zn (Ⅱ) were measured to be 8.73,10.12 and 4.89 mg.g-1 resin respectively. The C-C-CTS resin has good selectivity for Pb (Ⅱ), Cu (Ⅱ)and Zn (Ⅱ) at different pH conditions. The sorption mechanism of Pb (Ⅱ) on C-C-CTS resin was also discussed.
