GUAN Qingmei, MA Fei, BAI Cuibing, SHI Ruijuan, ZHANG Lin, QIAO Rui
(School of Chemistry & Materials Engineering, Fuyang Teachers College, Fu yang 236037, Anhui, China)

Abstract: Layered rare-earth hydroxide Y_2-xEu_x(OH)₅NO₃•nH₂O(LRH) with fluorescent characteristic of Eu³⁺ was prepared by microwave method, and X-ray diffraction displayed that the material layer spacing about 0.9 nm. The interlayer space enlarged after anion exchange under the condition of microwave. The photoluminescence intencity of LRH enhanced significantly due to the antenna effect of organic anion.The nanosheets of LRH were exfoliated in formamide solvent with the aid of ultrasonic, and the size of obtained nanosheets distributed in the range of 500-1000 nm.

Key words: LRHs; Nanosheets; microwave synthesis; photoluminescence