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Radiation grafting of DMAEMA and DEAEMA‑based adsorbents for thorium adsorption
https://repo.qst.go.jp/records/79353
https://repo.qst.go.jp/records/79353570e4ba5-69ba-443b-9177-5e354073d0db
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-12 | |||||
| タイトル | ||||||
| タイトル | Radiation grafting of DMAEMA and DEAEMA‑based adsorbents for thorium adsorption | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Azillah Fatimah Othman, Nor
× Azillah Fatimah Othman, Nor× Selambakkannu, Sarala× Yamanobe, Takeshi× Hoshina, Hiroyuki× Seko, Noriaki× Amran Tuan Abdullah, Tuan× Hoshina, Hiroyuki× Seko, Noriaki |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Radiation grafting of two tertiary amine methacrylates; 2-(dimethylamino)ethyl ethacrylate (DMAEMA) and 2-(diethylamino) ethyl methacrylate (DEAEMA) onto polyolefin non-woven fabric (PE/PP-NWF) was comparatively investigated in this study. In addition, the absorbent preparation process, grafting kinetics, and mechanism were investigated. The thermal properties were investigated by thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC). Fourier transform infrared (FTIR) spectroscopy was performed to confirm the successful grafting and incorporation of the two monomers functional groups onto PE/PP-NWF. X-ray diffraction (XRD) analysis was used to examine the differences between the crystal sizes and structures. Lastly, the adsorption of Th(IV) ion was investigated in batch mode. The results indicate that the radiation grafting of both DMAEMA and DEAEMA onto PE/PP-NWF required high activation energies with increasing temperatures from 313 to 333 K. Furthermore, P-DMAEMA and P-DEAEMA demonstrated different adsorption behaviors towards Th(IV). Results showed that P-DEAEMA exhibited lower Th(IV) adsorption capacity compared to P-DMAEMA, although both contain similar carbonyl and tertiary amino functional groups. These findings indicate that the molecular structure of the adsorbent was responsible. The molecular sizes increased with increasing branched carbon chains from the methyl to ethyl groups. Density functional theory (DFT) analysis indicated that induced steric effect eventually increases the inter-molecular repulsions caused by the additional CH2-groups in the structure, which reduces adsorption capacity. | |||||
| 書誌情報 |
Journal of Radioanalytical and Nuclear Chemistry 巻 324, p. 429-440, 発行日 2020-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0236-5731 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s10967-020-07078-9 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1007/s10967-020-07078-9 | |||||
