کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
230760 1427397 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultimately simple one-pot single-step synthesis of rare earth doped spherical mesoporous metal oxide nanospheres with upconversion emission ability in supercritical methanol
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Ultimately simple one-pot single-step synthesis of rare earth doped spherical mesoporous metal oxide nanospheres with upconversion emission ability in supercritical methanol
چکیده انگلیسی


• Mesoporous metal oxide nanospheres with upconversion emission ability were synthesized.
• Mesoporous rare earth doped nanospheres emit green light under even low-power IR laser irradiation.
• Spherical mesoporous nanoparticles were also doped with other metals and nitrogen.

Rare earth doped spherical mesoporous metal oxide nanospheres with upconversion emission ability and large surface area were successfully synthesized by a rapid one-pot single-step method. The reaction medium comprised supercritical methanol with carboxylic acid as an organic additive. Mesoporous Er doped CeO2 and Er and Yb co-doped CeO2 nanospheres emit green light under even low-power IR laser irradiation (980 nm, 10 mW) without calcination. Stronger intensity was achieved by high-temperature calcination. Spherical mesoporous nanoparticles were successfully doped with other metals and nitrogen to form TiO2:Eu, TiO2:Ce, TiO2:Yb, TiO2:Fe, and TiO2:N according to the similar procedure combining supercritical methanol.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 80, August 2013, Pages 71–77
نویسندگان
, , , , ,