Immobilization of Alkali Metal Fluorides via Recrystallization in a Cationic Lamellar Material, [Th(MoO4)(H2O)4Cl]Cl·H2O

Jian Lin; Hongliang Bao; Meiying Qie; Mark A. Silver; Zenghui Yue; Xiaoyun Li; Lin Zhu; Xiaomei Wang; Linjuan Zhang; Jian Qiang Wang

doi:10.1021/acs.inorgchem.8b00954

Immobilization of Alkali Metal Fluorides via Recrystallization in a Cationic Lamellar Material, [Th(MoO₄)(H₂O)₄Cl]Cl·H₂O

Jian Lin
, Hongliang Bao
, Meiying Qie
, Mark A. Silver
, Zenghui Yue
, Xiaoyun Li
, Lin Zhu
, Xiaomei Wang
, Linjuan Zhang
, Jian Qiang Wang

Chinese Academy of Sciences
University of Chinese Academy of Sciences
Soochow University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Searching for cationic extended materials with a capacity for anion exchange resulted in a unique thorium molybdate chloride (TMC) with the formula of [Th(MoO₄)(H₂O)₄Cl]Cl·H₂O. The structure of TMC is composed of zigzagging cationic layers [Th(MoO₄)(H₂O)₄Cl]⁺ with Cl^- as interlamellar charge-balancing anions. Instead of performing ion exchange, alkali thorium fluorides were formed after soaking TMC in AF (A = Na, K, and Cs) solutions. The mechanism of AF immobilization is elucidated by the combination of SEM-EDS, PXRD, FTIR, and EXAFS spectroscopy. It was observed that four water molecules coordinating with the Th⁴⁺ center in TMC are vulnerable to competition with F^-, due to the formation of more favorable Th-F bonds compared to Th-OH₂. This leads to a single crystal-to-polycrystalline transformation via a pathway of recrystallization to form alkali thorium fluorides.

Original language	English
Pages (from-to)	6778-6782
Number of pages	5
Journal	Inorganic Chemistry
Volume	57
Issue number	12
DOIs	https://doi.org/10.1021/acs.inorgchem.8b00954
State	Published - 18 Jun 2018
Externally published	Yes

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@article{1689caf3b1a945d8a397afa75394b771,

title = "Immobilization of Alkali Metal Fluorides via Recrystallization in a Cationic Lamellar Material, [Th(MoO4)(H2O)4Cl]Cl·H2O",

abstract = "Searching for cationic extended materials with a capacity for anion exchange resulted in a unique thorium molybdate chloride (TMC) with the formula of [Th(MoO4)(H2O)4Cl]Cl·H2O. The structure of TMC is composed of zigzagging cationic layers [Th(MoO4)(H2O)4Cl]+ with Cl- as interlamellar charge-balancing anions. Instead of performing ion exchange, alkali thorium fluorides were formed after soaking TMC in AF (A = Na, K, and Cs) solutions. The mechanism of AF immobilization is elucidated by the combination of SEM-EDS, PXRD, FTIR, and EXAFS spectroscopy. It was observed that four water molecules coordinating with the Th4+ center in TMC are vulnerable to competition with F-, due to the formation of more favorable Th-F bonds compared to Th-OH2. This leads to a single crystal-to-polycrystalline transformation via a pathway of recrystallization to form alkali thorium fluorides.",

author = "Jian Lin and Hongliang Bao and Meiying Qie and Silver, \{Mark A.\} and Zenghui Yue and Xiaoyun Li and Lin Zhu and Xiaomei Wang and Linjuan Zhang and Wang, \{Jian Qiang\}",

note = "Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = jun,

day = "18",

doi = "10.1021/acs.inorgchem.8b00954",

language = "英语",

volume = "57",

pages = "6778--6782",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "12",

}

TY - JOUR

T1 - Immobilization of Alkali Metal Fluorides via Recrystallization in a Cationic Lamellar Material, [Th(MoO4)(H2O)4Cl]Cl·H2O

AU - Lin, Jian

AU - Bao, Hongliang

AU - Qie, Meiying

AU - Silver, Mark A.

AU - Yue, Zenghui

AU - Li, Xiaoyun

AU - Zhu, Lin

AU - Wang, Xiaomei

AU - Zhang, Linjuan

AU - Wang, Jian Qiang

PY - 2018/6/18

Y1 - 2018/6/18

N2 - Searching for cationic extended materials with a capacity for anion exchange resulted in a unique thorium molybdate chloride (TMC) with the formula of [Th(MoO4)(H2O)4Cl]Cl·H2O. The structure of TMC is composed of zigzagging cationic layers [Th(MoO4)(H2O)4Cl]+ with Cl- as interlamellar charge-balancing anions. Instead of performing ion exchange, alkali thorium fluorides were formed after soaking TMC in AF (A = Na, K, and Cs) solutions. The mechanism of AF immobilization is elucidated by the combination of SEM-EDS, PXRD, FTIR, and EXAFS spectroscopy. It was observed that four water molecules coordinating with the Th4+ center in TMC are vulnerable to competition with F-, due to the formation of more favorable Th-F bonds compared to Th-OH2. This leads to a single crystal-to-polycrystalline transformation via a pathway of recrystallization to form alkali thorium fluorides.

AB - Searching for cationic extended materials with a capacity for anion exchange resulted in a unique thorium molybdate chloride (TMC) with the formula of [Th(MoO4)(H2O)4Cl]Cl·H2O. The structure of TMC is composed of zigzagging cationic layers [Th(MoO4)(H2O)4Cl]+ with Cl- as interlamellar charge-balancing anions. Instead of performing ion exchange, alkali thorium fluorides were formed after soaking TMC in AF (A = Na, K, and Cs) solutions. The mechanism of AF immobilization is elucidated by the combination of SEM-EDS, PXRD, FTIR, and EXAFS spectroscopy. It was observed that four water molecules coordinating with the Th4+ center in TMC are vulnerable to competition with F-, due to the formation of more favorable Th-F bonds compared to Th-OH2. This leads to a single crystal-to-polycrystalline transformation via a pathway of recrystallization to form alkali thorium fluorides.

UR - https://www.scopus.com/pages/publications/85048685465

U2 - 10.1021/acs.inorgchem.8b00954

DO - 10.1021/acs.inorgchem.8b00954

M3 - 文章

C2 - 29869873

AN - SCOPUS:85048685465

SN - 0020-1669

VL - 57

SP - 6778

EP - 6782

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 12

ER -

Immobilization of Alkali Metal Fluorides via Recrystallization in a Cationic Lamellar Material, [Th(MoO₄)(H₂O)₄Cl]Cl·H₂O

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