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Yuan H, Shang P, Yang J, Huang Q, Song L, Jiang XF. Anion-Directed Self-Assembly of Calix[4]arene-Based Silver(I) Coordination Polymers and Photocatalytic Degradation of Organic Pollutants. Inorg Chem 2023; 62:2652-2662. [PMID: 36719869 DOI: 10.1021/acs.inorgchem.2c03587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Coordination polymers (CPs) have recently emerged as promising candidates for heterogeneous photocatalysis due to their structural designability and tunable properties. Herein, we developed two novel Ag(I)-calix[4]arene coordination polymers with the formula {[Ag2(μ-NO3)L1]}n (CP 1) and {[AgL1]·PF6}n (CP 2) (L1 = 2-mercapto-5-methyl-1,3,4-thiadiazole resorcinol calix[4]arene). Crystallography revealed that anion coordination and self-inclusion behavior induced the cavitand and silver ions to self-assemble into well-defined CPs 1 and 2 with different topological coordination frameworks, respectively. Furthermore, CPs 1 and 2 display high photocatalytic activity for the photodegradation of rhodamine B (RhB) and methyl orange (MO) in an aqueous solution under mild conditions (WLED and UV irradiation). The comparison results demonstrate that CP 1 exhibited better photocatalytic performance than CP 2, which correlated well with the differences in their molecular structure and HOMO-LUMO energy gaps. The photocatalysis products and possible intermediates were successfully monitored and determined using mass spectrum, gas chromatography, and electron paramagnetic resonance measurements. The rational photocatalysis mechanism was further investigated and proposed.
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Affiliation(s)
- Hui Yuan
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei 430062, P.R. China
| | - Ping Shang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei 430062, P.R. China
| | - Jie Yang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei 430062, P.R. China
| | - Qing Huang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei 430062, P.R. China
| | - Ling Song
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei 430062, P.R. China
| | - Xuan-Feng Jiang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei 430062, P.R. China.,Hubei Key Laboratory of Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang, Hubei 438000, P.R. China
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Zhang X, Maddock J, Nenoff TM, Denecke MA, Yang S, Schröder M. Adsorption of iodine in metal-organic framework materials. Chem Soc Rev 2022; 51:3243-3262. [PMID: 35363235 PMCID: PMC9328120 DOI: 10.1039/d0cs01192d] [Citation(s) in RCA: 95] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Indexed: 12/13/2022]
Abstract
Nuclear power will continue to provide energy for the foreseeable future, but it can pose significant challenges in terms of the disposal of waste and potential release of untreated radioactive substances. Iodine is a volatile product from uranium fission and is particularly problematic due to its solubility. Different isotopes of iodine present different issues for people and the environment. 129I has an extremely long half-life of 1.57 × 107 years and poses a long-term environmental risk due to bioaccumulation. In contrast, 131I has a shorter half-life of 8.02 days and poses a significant risk to human health. There is, therefore, an urgent need to develop secure, efficient and economic stores to capture and sequester ionic and neutral iodine residues. Metal-organic framework (MOF) materials are a new generation of solid sorbents that have wide potential applicability for gas adsorption and substrate binding, and recently there is emerging research on their use for the selective adsorptive removal of iodine. Herein, we review the state-of-the-art performance of MOFs for iodine adsorption and their host-guest chemistry. Various aspects are discussed, including establishing structure-property relationships between the functionality of the MOF host and iodine binding. The techniques and methodologies used for the characterisation of iodine adsorption and of iodine-loaded MOFs are also discussed together with strategies for designing new MOFs that show improved performance for iodine adsorption.
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Affiliation(s)
- Xinran Zhang
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
| | - John Maddock
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
| | - Tina M Nenoff
- Materials, Physics and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Melissa A Denecke
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
- Division of Physical and Chemical Science, Department of Nuclear Applications, International Atomic Energy Agency, Vienna International Centre, PO Box 100, 1400 Vienna, Austria
| | - Sihai Yang
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
| | - Martin Schröder
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
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