Polyvinylpyrrolidone(PVP)/vanadyl glycolate (VO(OCH2-CH2O)) core-shell microspheres were assembled by soft-templating method using vanadyl acetylacetone (VO(acac2) as raw materials. And then vanadium pentoxide (V2O5) hollow spheres with particle size from 0.5 to 1μm were obtained by the calcination of composite microspheres. SEM, TEM and XRD were adopted to characterize the spherical morphology, hollow structure and phase composition of the final product, respectively. The mechanism of the formation of V2O5 hollow spheres was discussed based on the FTIR of VO(acac)2, PVP dissolved in EG, VO(acac)2 dissolved in EG, VO(OCH2-CH2O)/PVP microspheres and the DTA curve of composite microspheres. Effects of concentration of reagents, the time of reaction on the experiment were studied. The results indicate that the core-shell composite microspheres can be prepared through the precise control of the concentration of PVP and VO(acac)2, and the microspheres will be formed with ideal shape and surface morphology with reaction time ranging from 75min to 90min.
ZHU Ding
,
LIU Heng
,
YAO Ya-Dong
,
LI Da-Cheng
. Fabrication and Characterization of Nanostructural Vanadium Pentoxide Hollow Microspheres[J]. Journal of Inorganic Materials, 2008
, 23(1)
: 43
-48
.
DOI: 10.3724/SP.J.1077.2008.00043
[1] Huang H, Remsen E E. J. Am. Chem. Soc., 1999, 121 (15): 3805--3806.
[2] Mandal T K, Feming M S, Walt D R. Chem. Mater., 2000, 12 (11): 3481--3487.
[3] Bergbreiter D E. Angew. Chem. Int. Ed., 1999, 38 (19): 2870--2872.
[4] Bruinsima P J, Kim A Y, Liu J, et al. Chem. Mater., 1997, 9 (11): 2507--2512.
[5] Schacht S, Huo Q, Voigt-Matin I G, et al. Science., 1996, 273 (5276): 768--771.
[6] 汪丽梅, 窦立岩, 陈大俊. 高分子通报, 2005, 3 (8): 55--61.
[7] 宋秀芹, 杨晓辉, 陈汝芬, 等. 化学学报, 2006, 64 (3): 198--202.
[8] 杨晓玲, 朱以华, 朱孟钦, 等(YANG Xiao-Ling, et al). 无机材料学报(Journal of Inorganic Materials), 2003, 18 (6): 1293--1298.
[9] Jiliang Yin, Xuefeng Qian, Jie Yin, et al. Inorg. Chem. Commu., 2003, 6 (7): 942--945.
[10] Ras R H A, Kemell M, de With J, et al. Adv. Mater., 2007, 19 (1): 102--106. [11] 郑洪河, 石磊, 赵扬, 等. 化学通报, 2005, 68 (8): 591--600.
[12] 蔺玉胜, 宋彩霞, 魏文阁, 等. 材料导报, 2005, 18 (9): 24--26.
[13] 徐兆瑜. 化工技术与开发, 2004, 33 (3): 19--23.
[14] 布瑞奈特 B E. 无机合成, 第五卷. 北京: 科学出版社, 1963. 113
[15] Jiang X, Wang Y, Herricks T, et al. J. Mater. Chem., 2004, 14 (4): 695--703.
[16] 翁诗甫. 傅立叶变换红外光谱仪, 第一版. 北京: 化学工业出版社, 2005. 262--263.
[17] Cao An-Min, Hu Jin-Song, Liang Han-Pu, et al. Angew. Chem. Int. Ed., 2005, 44 (28): 4391--4395.
[18] Park J H, Oh C, Shin S I, et al. J. Colloid. Interface. Sci., 2003, 266 (1): 107--114.
[19] Weeks C, Yanning S, Masatsugu S, et al. J. Mater. Chem., 2003, 13 (6): 1420--1423.
[20] 张克从. 近代晶体学基础(下册), 第二版. 北京: 科学出版社, 1998. 115--117.
