Enrichment of tritiated water using mesoporous silica

被引：5

作者：

Taguchi, Akira ^{[1
]}

Kato, Yuki ^{[1
]}

Torikai, Yuji ^{[1
]}

Matsuyama, Masao ^{[1
]}

Uchida, Sayaka ^{[2
]}

机构：

[1] Toyama Univ, Hydrogen Isotope Res Ctr, Toyama 9308555, Japan

[2] Univ Tokyo, Grad Sch Art & Sci, Meguro Ku, Tokyo 1538902, Japan

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2013年 / 179卷

关键词：

Mesoporous silica; Tritium; Radioisotope; Enrichment; MOLECULAR-SIEVES; TRITIUM ENRICHMENT; RECOVERY-SYSTEM; ADSORPTION; SPECTROSCOPY; ZEOLITES; METAL; PLANT; NANOPARTICLES; SEPARATION;

D O I：

10.1016/j.micromeso.2013.05.031

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The enrichment of tritiated water in desorption from micro- and meso-porous materials was studied. Among the adsorbents MCM-41, SEA-15, LTA(5A), and amorphous SiO2, MCM-41 showed the best enrichment ability. The tritium (T) desorption profile of MCM-41, along with Si-29 magic-angle spinning nuclear magnetic resonance spectroscopy, thermogravimetric analysis, and Fourier-transform infrared spectroscopy suggested that dehydration via the condensation of silanol groups containing T species, such as Si-OT, contributed to the enrichment of tritiated water. In contrast, the desorption of HTO molecules trapped in zeolite cages and channels was dominant in LTA(5A). The results also suggested the superiority of mesoporous structures for the enrichment of tritiated water. Crown Copyright (C) 2013 Published by Elsevier Inc. All rights reserved.

引用

页码：217 / 223

页数：7

共 49 条

[21] Improvement of hydrothermal stability of mesoporous silica using salts: reinvestigation for time-dependent effects
Kim, JM
Jun, S
Ryoo, R
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (30): : 6200 - 6205
[22] Adsorption tests of water vapor on synthetic zeolites for an atmospheric detritiation dryer
Kim, K. R.
Lee, M. S.
Paek, S.
Yim, S. P.
Ahn, D. H.
Chung, H.
[J]. RADIATION PHYSICS AND CHEMISTRY, 2007, 76 (8-9) : 1493 - 1496
[23] Molecular-sieving effect of zeolite 3A on adsorption of H2, HD and D2
Kotoh, K.
Takashima, S.
Nakamura, Y.
[J]. FUSION ENGINEERING AND DESIGN, 2009, 84 (7-11) : 1108 - 1112
[24] ORDERED MESOPOROUS MOLECULAR-SIEVES SYNTHESIZED BY A LIQUID-CRYSTAL TEMPLATE MECHANISM
KRESGE, CT
LEONOWICZ, ME
ROTH, WJ
VARTULI, JC
BECK, JS
[J]. NATURE, 1992, 359 (6397) : 710 - 712
[25] Phosphonate-functionalized large pore 3-D cubic mesoporous (KIT-6) hybrid as highly efficient actinide extracting agent
Lebed, Pablo J.
de Souza, Kellen
Bilodeau, Francois
Lariviere, Dominic
Kleitz, Freddy
[J]. CHEMICAL COMMUNICATIONS, 2011, 47 (41) : 11525 - 11527
[26] Lowell S., 2004, Particle Technology Series, P1, DOI DOI 10.1007/978-1-4020-2303-3_11
[27] Mesoporous materials in the field of nuclear industry: applications and perspectives
Makowski, Philippe
Deschanels, Xavier
Grandjean, Agnes
Meyer, Daniel
Toquer, Guillaume
Goettmann, Frederic
[J]. NEW JOURNAL OF CHEMISTRY, 2012, 36 (03) : 531 - 541
[28] Access in mesoporous materials: Advantages of a uniform pore structure in the design of a heavy metal ion adsorbent for environmental remediation
Mercier, L
Pinnavaia, TJ
[J]. ADVANCED MATERIALS, 1997, 9 (06) : 500 - &
[29] Verified syntheses of mesoporous materials
Meynen, V.
Cool, P.
Vansant, E. F.
[J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2009, 125 (03) : 170 - 223
[30] Preparation of 3H-ATP-incorporated silica nanoparticles and its diffusive release
Miyoshi, Hirokazu
Kazumori, Yuko
Nakayama, Shintaro
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 2010, 356 (50-51) : 2889 - 2895

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