Effect of Na2O and CaO on the solubility and crystallization of Mo in borosilicate glasses

被引：21
作者：
Zhou, Junjie [1 ]
Liao, Qilong [1 ]
Wang, Fu [1 ]
Wang, Yuanlin [1 ]
Zhu, Hanzhen [1 ]
Zhu, Yongchang [2 ]
机构：
[1] Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China
[2] China Bldg Mat Acad, Beijing 100024, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2021年 / 557卷
基金：
中国国家自然科学基金;
关键词：
Borosilicate glasses; Molybdenum; Solubility; Crystallization;
D O I：
10.1016/j.jnoncrysol.2020.120623
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of Na2O and CaO on the solubility and crystallization of Mo in the conventional borosilicate glasses belonging to SiO2-B2O3-Na2O-CaO system was investigated. The results show that the solubility of Mo in the glasses reaches up to 2.98 mol%. The substitutions of cationic oxides ([Na2O]+[CaO]) for SiO2 and CaO for Na2O in the glass composition improve the solubility of Mo. The solubility and crystallization of Mo are related to the depolymerized regions of the glass structure. Generally, the improved solubility of Mo can be ascribed to the high depolymerization degree of glass structure and the loose distribution of ions in the depolymerized regions. Product consistency test (PCT) results show the crystalline CaMoO4 has insignificant influence on the normalized elemental leaching rate of Mo. The normalized leaching rates of the obtained samples are similar to 1(0-3) g.m(2).d(-1) after 28 days, which are comparable to widely used borosilicate waste glasses.
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页数：8
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共 45 条
[1]  
[Anonymous], 2021, J NON-CRYST SOLIDS, V557
[2]   Compositional Dependence of Solubility/Retention of Molybdenum Oxides in Aluminoborosilicate-Based Model Nuclear Waste Glasses [J].
Brehault, Antoine ;
Patil, Deepak ;
Kamat, Hrishikesh ;
Youngman, Randall E. ;
Thirion, Lynn M. ;
Mauro, John C. ;
Corkhill, Claire L. ;
McCloy, John S. ;
Goel, Ashutosh .
JOURNAL OF PHYSICAL CHEMISTRY B, 2018, 122 (05) :1714-1729
[3]   Single phase melt processed powellite (Ba,Ca)MoO4 for the immobilization of Mo-rich nuclear waste [J].
Brinkman, Kyle ;
Fox, Kevin ;
Marra, James ;
Reppert, Jason ;
Crum, Jarrod ;
Tang, Ming .
JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 551 :136-142
[4]   Structural role of molybdenum in nuclear glasses: an EXAFS study [J].
Calas, G ;
Le Grand, M ;
Galoisy, L ;
Ghaleb, D .
JOURNAL OF NUCLEAR MATERIALS, 2003, 322 (01) :15-20
[5]   Crystallization of neodymium-rich phases in silicate glasses developed for nuclear waste immobilization [J].
Caurant, D. ;
Majerus, O. ;
Loiseau, P. ;
Bardez, I. ;
Baffier, N. ;
Dussossoy, J. L. .
JOURNAL OF NUCLEAR MATERIALS, 2006, 354 (1-3) :143-162
[6]   Structural investigations of borosilicate glasses containing MoO3 by MAS NMR and Raman spectroscopies [J].
Caurant, D. ;
Majerus, O. ;
Fadel, E. ;
Quintas, A. ;
Gervais, C. ;
Charpentier, T. ;
Neuville, D. .
JOURNAL OF NUCLEAR MATERIALS, 2010, 396 (01) :94-101
[7]   Effect of molybdenum on the structure and on the crystallization of SiO2-Na2O-CaO-B2O3 glasses [J].
Caurant, Daniel ;
Majerus, Odile ;
Fadel, Edward ;
Lenoir, Marion ;
Gervais, Christel ;
Pinet, Olivier .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (03) :774-783
[8]   Effect of MoO3, Nd2O3, and RuO2 on the crystallization of soda-lime aluminoborosilicate glasses [J].
Chouard, N. ;
Caurant, D. ;
Majerus, O. ;
Dussossoy, J. L. ;
Klimin, S. ;
Pytalev, D. ;
Baddour-Hadjean, R. ;
Pereira-Ramos, J. P. .
JOURNAL OF MATERIALS SCIENCE, 2015, 50 (01) :219-241
[9]   Thermal stability of SiO2-B2O3-Al2O3-Na2O-CaO glasses with high Nd2O3 and MoO3 concentrations [J].
Chouard, Nolwenn ;
Caurant, Daniel ;
Majerus, Odile ;
Guezi-Hasni, Nadia ;
Dussossoy, Jean-Luc ;
Baddour-Hadjean, Rita ;
Pereira-Ramos, Jean-Pierre .
JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 671 :84-99
[10]   Glass fabrication and product consistency testing of lanthanide borosilicate glass for plutonium disposition [J].
Crawford, C. L. ;
Marra, J. C. ;
Bibler, N. E. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 444 :569-579
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