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Chanda A, Mandal SK. Two Metal-Organic Frameworks with a Fused Cis-Decalin Conformation for Multimedia Iodine Capture. Inorg Chem 2024; 63:13367-13379. [PMID: 38981070 DOI: 10.1021/acs.inorgchem.4c01225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
The extensive growth of nuclear power plants has a severe detrimental effect on human health and the surroundings due to the uncontrolled and unfiltered release of radioactive wastes into the environment. One such radioactive waste is 129I which has a fatal effect when released into the air or water bodies. Hence, molecular and ionic iodine capture from multimedia has become an important area of interest in the recent past. This work is aimed at introducing two 2D metal-organic frameworks with a fused cis-decalin conformation, {[Zn2(tpbn)(fdc)2]·6H2O}n (1) and {[Cd2(tpbn)(fdc)2(H2O)2]·2H2O}n (2), synthesized at room temperature utilizing a combination of M(OAc)2·2H2O (M: Zn/Cd), a neutral flexible ligand, tpbn, and a simple commercially available furan dicarboxylate, fdc2-, for the target application. The polarizing nature of the furan moieties and the oxygen rich pores in 1 and 2 facilitate the easy capture of molecular iodine from both the vapor phase and aqueous media with high uptake values. Furthermore, their efficiency was tested for the practical application under real-world conditions using river and seawater. In addition to confirming their recyclability with the retention of structural integrity, the interaction between 1 and 2 with iodine has also been established with experimental and theoretical calculations.
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Affiliation(s)
- Alokananda Chanda
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, Manauli P.O., S.A.S. Nagar, Mohali, Punjab 140306, India
| | - Sanjay K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, Manauli P.O., S.A.S. Nagar, Mohali, Punjab 140306, India
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Shi M, Cheng K, Cheng X, Zhou X, Jiang G, Du J. Iodine capture of a two-dimensional layered uranyl-organic framework: a combined DFT and AIMD study. Phys Chem Chem Phys 2024; 26:17132-17140. [PMID: 38845547 DOI: 10.1039/d4cp01898b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
To develop nuclear energy sustainably, it is important to effectively capture radioiodine in nuclear waste. In this study, we used density functional theory (DFT) and ab initio molecular dynamics (AIMD) calculations to investigate how well the uranyl-organic framework (UOF) could capture radioiodine. We found that the uranyl center and C-N ring sites in both cluster and periodic UOF models are very attractive to the I2 molecule. The adsorption energies of the I2 molecule in the periodic UOF models are as high as -1.10 eV, which is much higher than in the cluster model. The interaction characteristics between the I2 molecule and the UOF were revealed by electronic density topological analyses. Our AIMD simulations at 300 and 600 K have confirmed that the UOF has high adsorption kinetics for I2 molecules and can effectively capture them. The UOF has a high adsorption capacity and good adsorption stability for the I2 molecule, making it a promising option for the environmentally friendly removal of radioiodine.
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Affiliation(s)
- Mingyang Shi
- College of Physics, Sichuan University, Chengdu 610064, China.
| | - Kunyang Cheng
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Xiujuan Cheng
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Xuying Zhou
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Gang Jiang
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Jiguang Du
- College of Physics, Sichuan University, Chengdu 610064, China.
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Zhang GH, Zhu QH, Guo SJ, Zhang L, Yu C, Qin S, He L, Tao GH. Ionic Polyimine-Based Composite Membrane with Inductive and Complexation Synergistic Effects for Sensitive and On-Site Fluorescent Detection of Volatile Iodine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311990. [PMID: 38154086 DOI: 10.1002/adma.202311990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/16/2023] [Indexed: 12/30/2023]
Abstract
Along with the development of nuclear power, concerns about radioactive emissions and the potential for nuclear leakage have been widely raised, particularly of harmful iodine isotopes. However, as a significant component of nuclear air waste, the enrichment and detection of air-dispersed gaseous iodine remain a challenge. In this work, it is focused on developing an attraction-immobilization-detection strategy-based fluorescence method for the on-site detection of volatile iodine, by employing a photoluminescent ionic polyimine network-polyvinylpyrrolidone (IPIN-PVP) composite membrane. This strategy synergizes ion-induced dipole interactions from IPIN and complexation effects from PVP, allowing effective iodine enrichment and immobilization. As a result, the optimized IPIN-PVP membrane exhibits rapid response times of 5 s and a low detection limit of 4.087 × 10-8 m for gaseous iodine. It also introduces a portable handheld detection device that utilizes the composite membrane, offering a practical solution for real-time on-site detection of volatile iodine. This innovation enhances nuclear safety measures and disaster management by providing rapid and reliable iodine detection capabilities.
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Affiliation(s)
- Guo-Hao Zhang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
- School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Qiu-Hong Zhu
- College of Chemistry, Sichuan University, Chengdu, 610064, China
- School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Shi-Jie Guo
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Lei Zhang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Chao Yu
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Song Qin
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Ling He
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Guo-Hong Tao
- College of Chemistry, Sichuan University, Chengdu, 610064, China
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Tao Q, Zhang X, Jing L, Sun L, Dang P. Construction of Ketoenamine-Based Covalent Organic Frameworks with Electron-Rich Sites for Efficient and Rapid Removal of Iodine from Solution. Molecules 2023; 28:8151. [PMID: 38138639 PMCID: PMC10745408 DOI: 10.3390/molecules28248151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Porous covalent organic frameworks (COFs) have been widely used for the efficient removal of iodine from solution due to their abundance of electron-rich sites. In this study, two kinds of ketoenamine-based COFs, TpBD-(OMe)2 and TpBD-Me2, are successfully synthesized via Schiff base reaction under solvothermal conditions using 1, 3, 5-triformylphoroglucinol as aldehyde monomer, o-tolidine and o-dianisidine as amino monomers. The ability of TpBD-(OMe)2 and TpBD-Me2 to adsorb iodine in cyclohexane or aqueous solutions has been quantitatively analyzed and interpreted in terms of adsorption sites. TpBD-Me2 possesses two adsorption sites, -NH- and -C=O, and exhibits an adsorption capacity of 681.67 mg/g in cyclohexane, with an initial adsorption rate of 0.6 g/mol/min with respect to COF unit cell. The adsorption capacity of TpBD-(OMe)2 can be as high as 728.77 mg/g, and the initial adsorption rate of TpBD-(OMe)2 can reach 1.2 g/mol/min in the presence of oxygen atoms between the methyl group and the benzene ring. Compared with TpBD-Me2, the higher adsorption capacity and adsorption rate of TpBD-(OMe)2 towards iodine are not only reflected in organic solvents, but also in aqueous solutions. It is proven through X-ray photoelectron spectroscopy and Raman spectroscopy that iodine exists in the form of I2, I3-, and I5- within TpBD-(OMe)2 and TpBD-Me2 after adsorption. This work not only expands the application of COFs in the field of iodine adsorption, but also provides research ideas and important an experimental basis for the optimization of iodine adsorption sites.
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Affiliation(s)
- Qi Tao
- College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
| | - Xiao Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education (MOE), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Liping Jing
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Lu Sun
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Peipei Dang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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