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Rapid oxidative fragmentation of polypropylene with pH control in seawater for preparation of realistic reference microplastics
http://hdl.handle.net/10069/00042145
http://hdl.handle.net/10069/00042145a123d2a3-6d59-49ce-b90c-4bdcbb7e8b35
名前 / ファイル | ライセンス | アクション |
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SR13_4247.pdf (2.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2023-03-28 | |||||
タイトル | ||||||
タイトル | Rapid oxidative fragmentation of polypropylene with pH control in seawater for preparation of realistic reference microplastics | |||||
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 | |||||
著者 |
Nakatani, Hisayuki
× Nakatani, Hisayuki× Ohshima, Yuina× Uchiyama, Taishi× Motokucho, Suguru× Dao, Anh Thi Ngoc× Kim, Hee-Jin× Yagi, Mitsuharu× Kyozuka, Yusaku |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Various tiny plastic particles were retrieved from the sea and studied using scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDX) analysis to prepare realistic reference microplastics (MP). Most of the MP exhibited a diameter of < 20 × 10−6 m and 0.1–0.2 molar ratios of oxygen to carbon atoms (O/C), indicating that they primarily comprised polyethylene (PE), polypropylene (PP), and polystyrene (PS). It took a long time to reproduce such O/C ratios in standard laboratory weathering methods. For example, degrading of 30 × 30 × 0.060 mm PP film required 75 days for the 0.1 ratio, even with an advanced oxidation process (AOP) using a sulfate radical anion (SO4·−) initiator in distilled water at 65 °C. However, seawater drastically improved the PP degradation performance of AOP under a weak acid condition to achieve the 0.1 ratio of PP film in only 15 days. The combination of seawater and the SO4·− initiator accelerated the degradation process and showed that the MP’s size could be controlled according to the degradation time. | |||||
書誌情報 |
Scientific Reports 巻 13, 号 1, p. 4247, 発行日 2023-03-14 |
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出版者 | ||||||
出版者 | Springer Nature | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2045-2322 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1038/s41598-023-31488-w | |||||
権利 | ||||||
権利情報 | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. © The Author(s) 2023 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Scientific reports, 13(1), art. no. 4247; 2023 |