کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11016691 | 1774266 | 2019 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New lanthanide ternary complex system in electrospun nanofibers: Assembly, physico-chemical property and sensor application
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The generation of novel optical sensing structures through the lanthanide coordination has been a key scientific endeavor. The design of molecular indicator for chemical response is derived from the assembly of a polymeric-based ternary europium (III) complex system (Eu(NTA)3L/PVA (NTAâ¯=â¯4,4,4-trifluoro-1-(naphthalen-2-yl)butane-1,3-dione, Lâ¯=â¯2-(4-(4-(allyloxy)phenyl)-6-(pyridin-2-yl)pyridin-2-yl)pyridine, PVAâ¯=â¯poly(vinyl acetate)). The electrospinning technique has been employed to create a nanometer scale membrane and this functional film with ultrafine fibers (diameter of about 110â¯nm) exhibits intense red light at 618â¯nm under ultra-violet excitation of 340â¯nm. The luminescent signal transduction involves the interaction of hydrogen chloride (HCl) with the organic ligand. The strong acidity of the analyte induces dissociation of complex network and the evolution of emission from red to blue has been observed. The fabricated nanosensor demonstrates rapid response time (<2â¯s) and the detection limit has been calculated to be 3.0â¯ppm. This effective strategy for achieving lanthanide complex-encapsulated polymer fibers will contribute to the development of new intelligent photonic devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 358, 15 February 2019, Pages 67-73
Journal: Chemical Engineering Journal - Volume 358, 15 February 2019, Pages 67-73
نویسندگان
Xiangqian Li, Jiapei Gu, Zhan Zhou, Lufang Ma, Yiping Tang, Jinwei Gao, Qianming Wang,