收稿日期: 2009-02-12
修回日期: 2009-04-17
网络出版日期: 2009-09-15
基金资助
中国科学院知识创新工程项目(KSCX2-YW-N-004)、辽宁省节水农业重点实验室基金项目(05KJT21002)和辽宁省农业科技计划重大项目(2008212003)资助
Adsorption performance of CMC polymer for heavy metal ions
Received date: 2009-02-12
Revised date: 2009-04-17
Online published: 2009-09-15
通过正交试验得出制备羧甲基纤维素(CMC)聚合物的最佳工艺条件:丙烯酸(AA)/羧甲基纤维素=10,引发剂(硫酸铵)和交联剂(N,N'-亚甲基双丙烯酰胺)用量分别为单体的0.0014倍和0.0015倍.吸胀平衡后,将CMC聚合物在400~450℃下完全灰化16h,消解并用火焰原子吸收法测定聚合物对Zn2+、Cu2+、Pb2+、Cd2+、Cr2+、Ni2+和Mn2+的吸附性能.结果表明,CMC聚合物对重金属离子具有一定的吸附能力,其吸附量随着溶液pH值和重金属离子质量浓度的增加而增大,当pH为9时达到最大;并且CMC聚合物对Pb2+和Cu2+的吸附量要大于其他金属离子.
刘作新 , 曲威 , 苗永刚 , 王振营 , 尹光华 , 张法升 . CMC聚合物对重金属离子的吸附性能[J]. 中国科学院大学学报, 2009 , 26(5) : 627 -632 . DOI: 10.7523/j.issn.2095-6134.2009.5.007
The optimum technological conditions to prepare CMC polymer were determined by orthogonal experiments, in which the weight ratio of AA to CMC was 10, while the amounts of initiator and the cross-linker were 0.0014 and 0.0015 times as much as that of the monomer, respectively. After imbibition balance, the CMC polymer was digested when it had been completely ashed for 16h at 400~450℃, and then the flame atomic adsorption spectroscopy method was used to determine the polymer's adsorbability of Zn2+, Cu2+, Pb2+, Cd2+, Cr2+, Ni2+, and Mn2+. The results showed that the CMC polymer could adsorb heavy metal ions, while the adsorption capacity increased with the increment of pH and concentration of heavy metal ions. It reached the maximum when the pH value was 9, and the adsorption quantities of Pb2+ and Cu2+ were higher than those of the other 5 mental ions.
Key words： CMC polymer; FAAS; heavy metal ions; adsorption
[1] Ling W T, Li X Y, He J Z, et al.Interaction between heavy mentals adsorption-desorption and charge character of soils
[J].Chinese Journal of Soil Science, 2002, 33(6):456-460 (in Chinese). 凌婉婷, 李学垣, 贺纪正, 等.土壤表面电荷特征与重金属吸附-解吸的相互关系 .土壤通报, 2002, 33(6):456-460.
[2] Ng J, Cheung W H, McKay G.Equilibrium studies of the sorption of Cu(Ⅱ) Ions onto chitosan
[J].Journal of Colloid and Interface Science, 2002, 255(1):64-74.
[3] Liu Y, Liang P, Guo L, et al.Sturdy on the adsorption behavior of heavy mental ions on nanometer TiO2 supporttse on silica gel
[J].Chemical Letters, 2005, 63(4):312-316 (in Chinese). 刘 艳, 梁 沛, 郭 丽, 等.负载型纳米二氧化钛对重金属离子吸附性研究
[J].化学快报, 2005, 63(4):312-316.
[4] Fang F, Satulovsky J, Szleifer I.Kinetics of protein adsorption and desorption on surfaces with grafted polymers
[J].Biophysical Journal, 2005, 89(3):1516-1533.
[5] Lin J J, Silas J A, Bermudez H, et al.The effect of polymer chain length and surface density on the adhesiveness of functionalized polymersomes
[J].Langmuir, 2004, 20(13):5493-5590.
[6] Yin Y E, Li L H, Hu Z H.Determination of copper, iron, nickel and sodium in catalyst by microwave digestion-atomic asorption spectrometry .Analysis and Testing Technology and Instruments, 2005, 11(3):188-191 (in Chinese). 尹艳娥, 李丽华, 胡中华.微波消解-原子吸收光谱法测定催化剂中的铜、铁、镍和钠
[J].分析测试技术与仪器, 2005, 11(3):188-191.
[7] Palmer C D, Wittbrodt P R.Processes affecting the remediation of chromium contaminatedsites
[J].Environ Health Persp, 1991, 92:25-40.
[8] Li J, Ma F G, Tan H M.Preparation and absorbing ability to pb2+ of carboxylmethyl cellulose grafting sulformethyl polyacrylamide
[J].Chemcal Industry and Engineering Progress, 2004, 23(5):532-535 (in Chinese). 李 杰, 马凤国, 谭惠民. 羧甲基纤维素接枝聚磺甲基化丙烯酰胺的制备及其吸附性能的研究
[J]. 化工进展, 2004, 23(5):532-535.
[9] Xiao G Q.Determination of microelements in tea and its cultivating Soil by microwave digestion-atomic absorption spectromet
[J].Chinese Journal of Spectroscopy Laboratory, 2006, 23(2):493-496 (in Chinese). 肖谷清.微波消解-原子吸收光谱法测定茶叶和栽培土壤中的微量元素
[J].光谱实验室,2006, 23(2):493-496.
[10] Marques PASS, Rosa M F, Pinheiro H M.pH effects on the removal of Cu2+, Cd2+, and Pb2+ from aqueous solution by waste brewery biomass
[J].Bioprocess Engineering, 2000, 23(2):135-141.
[11] Qu G W, Yin Y L.Effect of polyacrylate polymers on the absorption of heavy metal and remediation of artificially polluted soil with cadmium
[J].Journal of Anhui Agriculture Science, 2006, 34(20):5331-5333 (in Chinese). 曲贵伟, 尹艳丽.聚丙烯酰胺对重金属离子的吸附效应及在土壤修复上的应用
[J].安徽农业科学, 2006, 34(20):5331-5333.
[12] Yilmaze S S, Kul D, Erdol M, et al.Synthesis of a novel crosslinked superabsorbent copolymer with diazacyclooctadecane crown ether and its sorption capability
[J].European Polymer Journal, 2007, 43(5):1923-1932.
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