Department of Chemistry, Jilin University, Changchun, 130021, People's Republic of China.
J Hazard Mater. 2011 Oct 30;194:185-92. doi: 10.1016/j.jhazmat.2011.07.083. Epub 2011 Aug 5.
Novel naphthalimide-functionalized nanofibrous film was prepared by copolymerization and electrospinning. Vinyl naphthalimide monomer was synthesized and then copolymerized with methyl methacrylate via solution polymerization. This prepared copolymer was electrospun into nanofibrous film, which is an excellent sensing material and adsorbent for Cu(2+). When the nanofibrous film was added into acetonitrile/aqueous solution, the presence of Cu(2+) induces the formation of a 1:1 metal-ligand complex, which exhibits a 48 nm blue-shifted from 487 nm to 439 nm in fluorescence spectra. The fluorescent film shows high sensitivities due to the high surface area-to-volume ratio of the nanofibrous film structures. The detection limit for Cu(2+) is 20 × 10(-6)M. Furthermore, the prepared materials could be utilized as an adsorbent to remove Cu(2+) in aqueous solution efficiently, the adsorption capacity was 10.39 mg of Cu(2+) ions per gram of nanofibrous film. All of the results in this paper show that the naphthalimide-functionalized nanofibrous film made by electrospun technique has excellent sensitivities and adsorbent properties toward Cu(2+) over other metal ions.
通过共聚和静电纺丝制备了新型萘酰亚胺功能化纳米纤维膜。合成了乙烯基萘酰亚胺单体，然后通过溶液聚合与甲基丙烯酸甲酯共聚。将制备的共聚物静电纺成纳米纤维膜，这是一种用于 Cu(2+) 的优异传感材料和吸附剂。当纳米纤维膜加入乙腈/水溶液中时，Cu(2+) 的存在诱导形成 1:1 的金属-配体络合物，在荧光光谱中从 487nm 蓝移至 439nm。由于纳米纤维膜结构的高表面积与体积比，荧光膜具有高灵敏度。Cu(2+) 的检测限为 20×10(-6)M。此外，所制备的材料可用作吸附剂，可有效去除水溶液中的 Cu(2+)，其对纳米纤维膜的吸附容量为每克纳米纤维膜 10.39mg 的 Cu(2+)离子。本文所有结果表明，通过静电纺丝技术制备的萘酰亚胺功能化纳米纤维膜对 Cu(2+)具有优异的灵敏度和吸附性能，优于其他金属离子。
