物理化学学报
物理化學學報
물이화학학보
ACTA PHYSICO-CHIMICA SINICA
2010年
3期
695-700
,共6页
Eu~(3+)离子%大豆卵磷脂%EuF_3纳米线
Eu~(3+)離子%大豆卵燐脂%EuF_3納米線
Eu~(3+)리자%대두란린지%EuF_3납미선
Eu~(3+)ion%Soybean lecithin%EuF_3 nanowires
利用大豆卵磷脂在水中自发形成的囊泡作模板,先制备出含有Eu~(3+)的卵磷脂乳液,Eu~(3+)与卵磷脂亲水头部的磷氧键相结合形成Eu--O--P键,经用NH_4F沉淀后制得前驱体,该前驱体在600℃灼烧,得到EuF_3纳米线,其直径约为10-20 nm.通过对各阶段产物的荧光光谱、傅里叶变换红外(FTIR)光谱、热重-差热分析(TG-DTA)、透射电镜(TEM)等的对比分析,确认形成了Eu--O--P键,所得到的纳米线是多晶相EuF_3.
利用大豆卵燐脂在水中自髮形成的囊泡作模闆,先製備齣含有Eu~(3+)的卵燐脂乳液,Eu~(3+)與卵燐脂親水頭部的燐氧鍵相結閤形成Eu--O--P鍵,經用NH_4F沉澱後製得前驅體,該前驅體在600℃灼燒,得到EuF_3納米線,其直徑約為10-20 nm.通過對各階段產物的熒光光譜、傅裏葉變換紅外(FTIR)光譜、熱重-差熱分析(TG-DTA)、透射電鏡(TEM)等的對比分析,確認形成瞭Eu--O--P鍵,所得到的納米線是多晶相EuF_3.
이용대두란린지재수중자발형성적낭포작모판,선제비출함유Eu~(3+)적란린지유액,Eu~(3+)여란린지친수두부적린양건상결합형성Eu--O--P건,경용NH_4F침정후제득전구체,해전구체재600℃작소,득도EuF_3납미선,기직경약위10-20 nm.통과대각계단산물적형광광보、부리협변환홍외(FTIR)광보、열중-차열분석(TG-DTA)、투사전경(TEM)등적대비분석,학인형성료Eu--O--P건,소득도적납미선시다정상EuF_3.
The precursor was prepared in two steps: the soybean lecithin latex containing Eu~(3+) ions was prepared first using a EuC1_3 solution. The vesicles formed spontaneously in the soybean lecithin aqueous solution and were used as a template. The precursor was then obtained by precipitating Eu~(3+) ions with NH_4F in the vesicle system that was formed by soybean lecithin. EuF_3 nanowires with diameters of about 10-20 nm were obtained from the precursor that was annealed at 600 ℃. The formation of the EuF_3 nanowires is discussed considering a comparative analysis by fluorescence spectra, Fourier transform infrared (FTIR) spectra, thermal gravimetric analysis-differential thermal analysis (TGA-DTA), and transmission electron microscopy (TEM) of the products from each stage. Results show that the Eu-O-P bond is formed by the coordination of Eu~(3+) ions and the nanowires are multi-crystalline phase EuF_3.
