Textural and structural studies of sol-gel derived SiO2-CaO-P2O5-MgO glasses by substitution of MgO for CaO

被引：26
作者：
Ma, J.
Chen, C. Z. [1 ]
Wang, D. G.
Shi, J. Z.
机构：
[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China
来源：
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2010年 / 30卷 / 06期
关键词：
Sol-gel process; Bioglass; Textural property; Structural feature; MgO; PULSED-LASER DEPOSITION; BIOACTIVE GLASS; SILICATE-GLASSES; CERAMICS; SPECTROSCOPY; BIOCERAMICS;
D O I：
10.1016/j.msec.2010.04.005
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
The partial substitution of MgO for CaO in the ternary SiO2-CaO-P2O5 glass system was conducted by the sot-gel method and a comparison of the textural and structural properties was reported. The textural properties (specific surface area and pore size distribution) were obtained by N-2-adsorption measurement and the glasses structure was elucidated by Fourier transform infrared spectroscopy. It is observed that, in general, all synthesized glasses show high specific surface area and present porous nature in mesopore region. The presence of MgO in glass composition has little influence on its textural properties, however, with increasing MgO concentration the frequency of Si-O(s.asym) group shifts towards lower energy and the absorbance intensity ratio of Si-O-NBO(Q(3))/Si-O-Si(s,sym) (Q(4)) declines, indicating the structure modification of MgO in glass composition. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：886 / 890
页数：5
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