以大孔丙烯酸系弱酸树脂 DK110为大分子骨架,通过与5-氯甲基-8-羟基喹啉的接枝反应,合成了带8-羟基喹啉螯合功能基的改性树脂 HQDK110.探讨了 HQDK110树脂对 Cu2＋在不同温度、不同 pH值、不同浓度等条件下的静态吸附性能、动态吸附性能及脱附性能.结果表明,HQDK110树脂对 Cu2＋具有良好的吸附作用,实验条件下,25℃时 HQDK110树脂对Cu2＋的吸附量达2．278 mmol/g.HQDK110树脂对Cu2＋的动力学吸附很好地符合了拟二级动力学模型,吸附过程符合 Langmuir 吸附等温式.树脂对Cu2＋的去除率在较宽的浓度范围内达到98％以上,吸附Cu2＋后的树脂在0．1 mol/L 的盐酸溶液中的脱附率达96．88％.树脂有良好的重复使用性能.
A novel 8-hydroxyquinoline modified DK110 resin(HQDK110)was synthesized by using weak-acidic macroporous acrylic acid resin DK110 as macromolecular skeleton through graft modification of 5-chloromethyl 8-hydroxyquinoline on it.The static,dynamic adsorption and desorption properties of Cu2+ on the HQDK110 resin were researched respectively under different temperature,pH value and metal ion concentration.The re-sults showed that the resin had good adsorption effect to Cu2+,and adsorption capacity was 2.278 mmol/g un-der experimental conditions when the temperature was 25 ℃.Adsorption process was better described by the pseudo second-order kinetics equation and Langmuir adsorption isotherm.The removal efficiency of Cu2+ was found to be more than 98% in wide concentration range and desorption efficiency was to 96.88% in 0.1 mol/L HCl solution.The resin had good reusability.
参考文献
| [1] | Zhang Xiaobo .The toxicity of heavy metals to aquatic or-ganisms[J].Guangdong Agriculture Sciences,2010,37(07):149-150. |
| [2] | 党明岩,郭洪敏,谭艳坤,毕韶丹.复配壳聚糖树脂对Cu~（2＋）的等温吸附及吸附动力学研究[J].功能材料,2012(19):2616-2619. |
| [3] | 向万宏,刘峥.螯合树脂的合成及应用研究新进展[J].化工技术与开发,2003(02):16-22. |
| [4] | Guan Qizhang .Synthesis and property of metal complex 8-hydroxyquinoline[D].Chengdu:Sichuang Normal Uni-versity,2009. |
| [5] | Zhang Jian .The preparation of salicylic acid type and 8-hydroxy-quinoline type chelating resins and studies on their chelation adsorption behaviours for heavy metal ions[D].Taiyuan:North University of China,2009. |
| [6] | Li LH;Xu B .Synthesis and characterization of 5-substituted 8-hydroxyquinoline derivatives and their metal complexes[J].Tetrahedron,2008(49):10986-10995. |
| [7] | Xiao Lifen;Liu Yuan;Xiu Qian.Nove lpolymeric metal complexes as dye sensitizers for dye-sensitized solar cells based on polythiophene containing complexes of 8-hydroxyquinoline with Zn(Ⅱ),Cu(Ⅱ)and Eu(Ⅲ)in the side chain[J].Tetrahedron,2010(66):2835-2842. |
| [8] | Dierssen H;Balzer W;Landing W M.Simplified synthesis of an 8-hydroxyquinoline chelating resin and a study od trance metal profile from Jellyfish Lake,palau[J].Marine Chemistry,2001(73):173-192. |
| [9] | Badiei A;Goldooz H;Ziarani G M.A novel methods for preparation of 8-hydroxyquinoline functionalized meso-porous silica:aluminum complexes and photolumines-cence studies[J].Applies Surface Science,2011(257):4912-4918. |
| [10] | Nuha M. Salem;Kais A.K. Ebraheem;Mohammad S. Mubarak .The effects of spacer groups on the chelation characteristics of some new mannich polymers containing 8-hydroxyquinoline[J].Reactive & functional polymers,2004(issue 1):63-69. |
| [11] | 郎惠云,张秀军,魏永锋.8-羟基喹啉化学修饰壳聚糖亚铁配合物的合成及结构表征[J].高等学校化学学报,2004(04):770-773. |
| [12] | 魏瑞霞,陈连龙,陈金龙.硫辛酸在三种不同树脂上的吸附热力学和动力学研究[J].功能高分子学报,2004(02):193-199. |
| [13] | Fu Xiancai;Shen Wenxia;Yao Tianyang.Physical chemistry(fifth eddition)[M].Beijing:Higher Educa-tion Press,2006 |
| [14] | 宋磊,党奇峰,刘成圣,于乐军,张冉,王玉杰,于德君.N,O-羧甲基壳聚糖树脂的制备及其对重金属吸附性能研究[J].功能材料,2013(21):3081-3084. |
| [15] | 刘春萍,曲荣君,刘淑芬,孙琳,卢永上,李勇,成国祥,李雪梅.甲醛-苯氧乙酸树脂对金属离子的交换性能研究[J].离子交换与吸附,2002(03):199-204. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%