Abstract
The radiation stability of three phosphine oxide functionalized pillar[5]arenes (POP5A) was studied by an electron accelerator with dose up to 5 MGy in air at room temperature. The structures of both irradiated and unirradiated pillar[5]arenes samples were comparatively characterized by Micro-FTIR, NMR, UV-vis, ESI-HRMS and HPLC techniques. The results revealed different degrees of radiation damage at different doses for POP5A, and the degradation products are mainly composed of organic species containing hydroxyl groups and carbonyl groups. The possible radiolytic degradation pathway was proposed. In addition, extraction of uranyl ion with irradiated POP5A samples was examined. The distribution ratio of uranyl ion was found to increase at low radiation dose and decrease until 3000 kGy. This is the first time that the irradiation stability of pillar[5]arenes derivative extractants has been studied in detail and it provides reliable data support for further application of pillar[5]arenes extractants in practical applications.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 21471105 and 21876121
Funding source: Open Project of Key Laboratory for Radiation Physics and Technology of Ministry of Education
Award Identifier / Grant number: 2018SCURPT11
Funding statement: We are grateful to the National Natural Science Foundation of China (Funder Id: http://dx.doi.org/10.13039/501100001809, 21471105 and 21876121), and Open Project of Key Laboratory for Radiation Physics and Technology of Ministry of Education (2018SCURPT11). The Comprehen-sive Training Platform of the Specialized Laboratory, Col-lege of Chemistry, Sichuan University, is acknowledged for HRESI-MS and NMR analysis.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/ract-2018-3092).
©2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Thermodynamic description of U(VI) solubility and hydrolysis in dilute to concentrated NaCl solutions at T = 25, 55 and 80 °C
- Polonium-210 in honey samples from southern Poland
- Molybdenum and lanthanum as alternate burn-up monitors – development of chromatographic and mass spectrometric methods for determination of atom percent fission
- Removal of Cs-137 and Sr-90 from reactor actual liquid waste samples using a new synthesized bionanocomposite-based carboxymethylcellulose
- Radiation stability of phosphine oxide functionalized pillar[5]arenes
- Radiation – induced preparation of polyaniline/poly vinyl alcohol nanocomposites and their properties
- Irradiated rubber composite with nano and micro fillers for mining rock application
- Gamma-ray shielding parameters of Li2B4O7 glasses: undoped and doped with magnetite, siderite and Zinc-Borate minerals cases
Artikel in diesem Heft
- Frontmatter
- Thermodynamic description of U(VI) solubility and hydrolysis in dilute to concentrated NaCl solutions at T = 25, 55 and 80 °C
- Polonium-210 in honey samples from southern Poland
- Molybdenum and lanthanum as alternate burn-up monitors – development of chromatographic and mass spectrometric methods for determination of atom percent fission
- Removal of Cs-137 and Sr-90 from reactor actual liquid waste samples using a new synthesized bionanocomposite-based carboxymethylcellulose
- Radiation stability of phosphine oxide functionalized pillar[5]arenes
- Radiation – induced preparation of polyaniline/poly vinyl alcohol nanocomposites and their properties
- Irradiated rubber composite with nano and micro fillers for mining rock application
- Gamma-ray shielding parameters of Li2B4O7 glasses: undoped and doped with magnetite, siderite and Zinc-Borate minerals cases