基于Ce4+引发自由基接枝共聚机理,制备了新型的烯丙基胺-细菌纤维素(al-BC)吸附剂;考察了细菌纤维素(BC)和烯丙基胺加入量、硝酸铈铵(CAN)浓度等对接枝共聚反应的影响并探讨了其接枝动力学过程;以al-BC为吸附剂,研究其对重金属离子pb2 -的吸附性能.结果表明:在CAN浓度25mmol/L、硝酸浓度0.16mol/L、烯丙基胺及BC加入量分别为24mL/L和8g/L、温度40℃、反应时间4h的最优接枝条件下,al-BC接枝率为18.22％;根据实验结果拟合出了反应初期接枝反应动力学方程;在最优吸附条件下,al-BC对pb2+的吸附能力比BC提高了37.53％.
参考文献
| [1] | 鲁敏,李彦英,关晓辉,魏德洲.细菌纤维素的制备及其吸附Cd2+的研究[J].东北大学学报（自然科学版）,2010(08):1196-1199. |
| [2] | Abd-Alla M A Nada et al.Grafted cellulose for metals adsorption[J].Bio Resources,2010,3(01):46. |
| [3] | 关晓辉,尹宗杰,鲁敏,李彦英,吴比.细菌纤维素发酵条件的优化及结构分析[J].中国酿造,2010(10):68-71. |
| [4] | 关晓辉,李彦英,鲁敏,郭晓宇,许颖,吴比.基于响应面分析法的环氧基细菌纤维素醚合成条件的优化[J].材料导报,2011(10):135-138. |
| [5] | Kim Byoung-Suhk .Effect of Ce4+ pretreatment on swelling properties of cellulosic superabsorbents[J].Polymers For Advanced Technologies,2009,20(03):899. |
| [6] | Tatsuya Oshima;Kanya Kondo;Keisuke Ohto;Katsutoshi Inoue;Yoshinari Baba .Preparation of phosphorylated bacterial cellulose as an adsorbent for metal ions[J].Reactive & functional polymers,2008(1):376-383. |
| [7] | M. Nasiruddin Khan;M. Farooq Wahab .Characterization of chemically modified corncobs and its application in the removal of metal ions from aqueous solution[J].Journal of hazardous materials,2007(1):237-244. |
| [8] | Gupta KC.;Sahoo S. .Ceric ion initiated grafting on cellulose from binary mixture of acrylonitrile and methylacrylate[J].Journal of Macromolecular Science. Pure and Applied Chemistry,2000(5):447-468. |
| [9] | Magdy Kandil Zahran .Grafting of methacrylic acid and other vinyl monomers onto cotton fabric using Ce(Ⅳ) ion-cellulose thiocarbonate redox system[J].Journal of Polymer Research,2006,13(09):65. |
| [10] | 左华江,罗照文,吴丁财,符若文.棉纤维/季铵盐接枝共聚物的合成及抗菌性能研究[J].中山大学学报（自然科学版）,2010(05):61-66. |
| [11] | 陈水挟,陈建良,武清毓.利用铈盐改性修饰活性炭纤维结构[J].新型炭材料,2006(03):206-212. |
| [12] | 田野,吴敏,孟令蝶,黄勇.天然纤维素纤维改性及其对水中砷的吸附[J].科技导报,2010(22):29-32. |
| [13] | Zhang Cheng.Study on regularities of graft copolymerization of acrylic acid onto fungal cell wall[J].Acta Polymerical Sinica,2001(04):241. |
| [14] | 王百军 .淀粉基接枝共聚物的合成及反应动力学研究[D].南京工业大学,2003. |
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