对用静电纺丝法制备的介孔二氧化硅纳米纤维(MSFs)进行氨基改性,通过TGA、FT-IR、电子扫描显微镜(SEM)、电子透射显微镜(TEM)、氮气吸附-脱附以及电感耦合等离子体质谱(ICP-MS)对改性得到的介孔纤维的结构和性能进行袁征.实验结果显示:当氨基修饰后,介孔二氧化硅纳米纤维的比表面积和孔体积都有所减小,但孔道结构未被破坏.水溶液中铜离子吸附实验表明:随着氨基修饰程度的增加,氨基修饰介孔二氧化硅纳米纤维对铜离子的吸附能力先增加后减小,最大去除率达88.8％.
参考文献
| [1] | Zhao D;Feng J;Stucky G D et al.Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores[J].SCIENCE,1998,279:548. |
| [2] | Zhao X S;Lu G Q;Hu X .A novel method for tailoring the pore-opening size of MCM-41 materials[J].Chemistry Communications,1999,15:1391. |
| [3] | Wang H;Wu D;Huang Y et al.Fabrication of continuous highly ordered mesoporous silica nanofiber with core/sheath structure and its application as catalyst carrier[J].Nano Scale,2011,3(09):3601. |
| [4] | Sujandi;Park SE;Han DS;Han SC;Jin MJ;Ohsuna T .Amino-functionalized SBA-15 type mesoporous silica having nanostructured hexagonal platelet morphology[J].Chemical communications,2006(39):4131-4133. |
| [5] | Shao C;Park S J;Kim H Y et al.Fiber mats of poly(vinyl alcohol)/silica composite via electrospinning[J].Materials Letters,2003,57(9-10):1579. |
| [6] | Teng, M.;Wang, H.;Li, F.;Zhang, B. .Thioether-functionalized mesoporous fiber membranes: Sol-gel combined electrospun fabrication and their applications for Hg~(2+) removal[J].Journal of Colloid and Interface Science,2011(1):23-28. |
| [7] | Zhao Y;Wang H;Wang C et al.Fabrication of refining mesoporous silica nanofibers via electrospinning[J].Materials Letters,2008,62(01):143. |
| [8] | 杨娜,朱申敏,张荻.氨基改性介孔二氧化硅的制备及其吸附性能研究[J].无机化学学报,2007(09):1627-1630. |
| [9] | 赵会玲,胡军,汪建军,周丽绘,刘洪来.介孔材料氨基表面修饰及其对CO2的吸附性能[J].物理化学学报,2007(06):801-806. |
| [10] | 刘秀芹,张云艳,常勇刚,徐承天,陈邦林.介孔SiO2表面的氨基修饰及吸附性能研究[J].化学世界,2009(02):70-73. |
| [11] | Wan, Y;Zhang, F;Lu, YF;Li, HX .Immobilization of Ru(II) complex on functionalized SBA-15 and its catalytic performance in aqueous homoallylic alcohol isomerization[J].Journal of Molecular Catalysis. A, Chemical,2007(1/2):165-172. |
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