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author:

Feng, Mei-Ling (Feng, Mei-Ling.) [1] | Sarma, Debajit (Sarma, Debajit.) [2] | Gao, Yu-Jie (Gao, Yu-Jie.) [3] | Qi, Xing-Hui (Qi, Xing-Hui.) [4] | Li, Wei-An (Li, Wei-An.) [5] | Huang, Xiao-Ying (Huang, Xiao-Ying.) [6] | Kanatzidis, Mercouri G. (Kanatzidis, Mercouri G..) [7]

Indexed by:

EI Scopus SCIE

Abstract:

Unconventional ion exchangers can achieve efficient removal of [UO2](2+), Cs+, and Sr2+ ions from complex aqueous solutions and are of great interest for environmental remediation. We report two new gallium thioantimonates, [Me2NH2](2)[Ga2Sb2S7]center dot H2O (FJSM-GAS-1) and [Et2NH2](2)-[Ga2Sb2S7]center dot H2O (FJSM-GAS-2), which present excellent ion exchange properties for [UO2](2+), Cs+, and Sr2+ ions. They exhibit high ion exchange capacities for [UO2](2+), Cs+, and Sr2+ ions (q(m)(U) = 196 mg/g, q(m)(Cs) = 164 mg/g, and q(m)(Sr) = 80 mg/g for FJSM-GAS-1, q(m)(U) = 144 mg/g for FJSM-GAS-2) and short equilibrium times for [UO2](2+) ion exchange (5 min for FJSM-GAS-1 and 15 min for FJSM-GAS-2, respectively). Both compounds display active ion exchange with [UO2](2+) in the pH range of 2.9-10.5. Moreover, the sulfide compounds could maintain high distribution coefficients K-d(U) even in the presence of excess Na+, Ca2+, and HCO3-. The distribution coefficient K-d(U) of 6.06 X 10 6 mL/g exhibited by FJSM-GAS-1 is the highest among the reported U adsorbents. The [UO2](2+) laden products can be recycled by conveniently eluting the uranium with a low-cost method. These advantages combined with facile synthesis, as well as beta and gamma radiation resistance, make FJSM-GAS-1 and FJSM-GAS-2 promising for selective separations in nuclear waste remediation.

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Community:

  • [ 1 ] [Feng, Mei-Ling]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Gao, Yu-Jie]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Qi, Xing-Hui]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Li, Wei-An]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Huang, Xiao-Ying]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Feng, Mei-Ling]Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA
  • [ 7 ] [Sarma, Debajit]Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA
  • [ 8 ] [Kanatzidis, Mercouri G.]Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA
  • [ 9 ] [Gao, Yu-Jie]Fuzhou Univ, Coll Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 10 ] [Qi, Xing-Hui]Fuzhou Univ, Coll Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 11 ] [Li, Wei-An]Fuzhou Univ, Coll Chem, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • [Huang, Xiao-Ying]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China;;[Kanatzidis, Mercouri G.]Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA

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Source :

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

ISSN: 0002-7863

Year: 2018

Issue: 35

Volume: 140

Page: 11133-11140

1 4 . 6 9 5

JCR@2018

1 4 . 5 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:209

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 153

SCOPUS Cited Count: 162

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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