采用Cu(Ⅱ)离子为印迹离子,以壳聚糖为原料,甲醛为预交联剂,环氧氯丙烷为交联剂,通过微波法制备出改性壳聚糖吸附剂.考察了合成过程中操作条件对吸附剂吸附性能的影响.结果表明,当壳聚糖质量分数为6%、17.4mL甲醛、8.76 mL环氧氯丙烷、酸化t为10h、θ为70℃时,所得Cu(Ⅱ)印迹交联壳聚糖吸附剂对Cu(Ⅱ)的吸附容量高达3.466 mmol/g;在混合金属离子溶液中,该吸附剂对Cu(Ⅱ)表现出较强的吸附选择性.
参考文献
[1] | 李峰,吴欲,胡如南.我国电镀废水处理回用的现状及探讨[J].电镀与精饰,2011(10):17-20,30. |
[2] | 党明岩,郭洪敏,谭艳坤,赵春英.壳聚糖及其衍生物吸附电镀废水中重金属离子的研究进展[J].电镀与精饰,2012(07):9-13. |
[3] | Yu-Ting Zhou;Christopher Branford-White;Hua-Li Nie .Adsorption mechanism of Cu2+ from aqueous solution bychitosan-coated magnetic nanoparticles modified with α-ketoglutaric acid[J].Colloids and Surfaces B-Biointerfaces,2009,74:244-252. |
[4] | 董静.电镀废水中铜离子的处理方法研究[J].河北化工,2011(06):77-78. |
[5] | Maria Valentina Dinu;Ecaterina Stela Dragan .Evaluation of Cu~(2+), Co~(2+) and Ni~(2+) ions removal from aqueous solution using a novel chitosan/clinoptilolite composite: Kinetics and isotherms[J].Chemical engineering journal,2010(1):157-163. |
[6] | 罗斌,董宏宇,梁伟新,高湘.离子交换回收电镀废水中六价铬的研究[J].广州化工,2010(03):96-99. |
[7] | 庄晓峰,王微,廖亚娇,蒋联规,林继辉,黄先锋.铁碳内电解法处理电镀废水中的六价铬[J].化学工程与装备,2012(07):184-188. |
[8] | Shankar Congeevaram;Sridevi Dhanarani;Joonhong Park;Michael Dexilin;Kaliannan Thamaraiselvi .Biosorption of chromium and nickel by heavy metal resistant fungal and bacterial isolates[J].Journal of hazardous materials,2007(1/2):270-277. |
[9] | 肖玲,陈乐英.表面印迹纳米磁性壳聚糖的制备及对Cu(Ⅱ)的吸附研究[J].离子交换与吸附,2008(03):193-199. |
[10] | Reddy, D.H.K.;Lee, S.-M..Application of magnetic chitosan composites for the removal of toxic metal and dyes from aqueous solutions[J].Advances in colloid and interface science,2013:68-93. |
[11] | Fan, L.;Luo, C.;Sun, M.;Li, X.;Qiu, H..Highly selective adsorption of lead ions by water-dispersible magnetic chitosan/graphene oxide composites[J].Colloids and Surfaces, B. Biointerfaces,2013:523-529. |
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