Speciation of hygroscopic species in aerosols by X-ray microscopy for the precise prediction of global warming
Project/Area Number |
25550013
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Environmental dynamic analysis
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Research Institution | The University of Tokyo (2014-2015) Hiroshima University (2013) |
Principal Investigator |
Takahashi Yoshio 東京大学, 理学(系)研究科(研究院), 教授 (10304396)
|
Co-Investigator(Kenkyū-buntansha) |
NITANI Hiroaki 高エネルギー加速器研究機構, 物質構造科学研究所, 助教 (20554603)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | 化学種解明 / XAFS / エアロゾル / STXM / カルシウム / 硫黄 / 走査型透過X線顕微鏡 / 炭素 / スペシエーション / 地球冷却効果 / ナトリウム |
Outline of Final Research Achievements |
Evaluation of hygroscopic characteristics of aerosols is very important for the precise prediction of global warming effect. To understand the cooling effect of hygroscopic aerosols that can become cloud condensation nuclei (CCN), precise determination of chemical species such as sulfate and organic matter is important. For this purpose, scanning transmission X-ray microscopy (STXM) is a powerful tool that can identify various chemical species with spatial resolution better than 50 nm. The application of STXM in a new beamline BL-15A was developed in Photon Factory in this study. We have also employed a new STXM system for the determination of sulfur and calcium species in aerosols. As a result, identification of sulfate and oxalate species was identified for calcium species in aerosols that should be produced by the neutralization of calcium carbonate in mineral aerosols. As for the speciation of sulfur, ammonium and calcium salt for sulfate species was identified in aerosols.
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Report
(4 results)
Research Products
(154 results)
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[Journal Article] Morphology of F8T2/PC71BM Blend Film as Investigated by Scanning Transmission X-ray Microscope (STXM)2015
Author(s)
Y. Moritomo, K. Yonezawa, T. Sakurai, T. Yasuda, Y. Takeichi, H. Kamioka, H. Suga, Y. Takahashi, Y. Yoshida, N. Inami, K. Mase, and K. Ono
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Journal Title
Molecular Crystals and Liquid Crystals
Volume: 620
Issue: 1
Pages: 32-37
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Transfer of rare earth elements (REE) from manganese oxides to phosphates during early diagenesis in pelagic sediments inferred from REE patterns, X-ray absorption spectroscopy, and chemical leaching method2015
Author(s)
Y. Takahashi, Y. Hayasaka, K. Morita, T. Kashiwabara, R. Nakada, M. A. Marcus, K. Kato, K. Tanaka, and H. Shimizu
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Journal Title
GEOCHEMICAL JOURNAL
Volume: 49
Issue: 6
Pages: 653-674
DOI
NAID
ISSN
0016-7002, 1880-5973
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Nanoscale Identification of Extracellular Organic Substances at the Microbe Mineral Interface by Scanning Transmission X-ray Microscopy2015
Author(s)
Mitsunobu, S ; Zhu, M ; Takeichi, Y ; Ohigashi, T ; Suga, H ; Makita, H ; Sakata, M ; Ono, K ; Mase, K ; Takahashi, Y
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Journal Title
Chemistry Letters
Volume: 44
Issue: 1
Pages: 91-93
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Characterization of Particulate Matters in the Pripyat River in Chernobyl Related to Their Adsorption of Radiocesium with Inhibition Effect by Natural Organic Matter2014
Author(s)
Suga, H ; Fan, QH ; Takeichi, Y ; Tanaka, K ; Kondo, H ; Kanivets, VV ; Sakaguchi, A ; Kato, K ; Inami, N ; Mase, K ; Ono, K ; Takahashi, Y
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Journal Title
Chemistry Letters
Volume: 43
Issue: 7
Pages: 1128-1130
DOI
NAID
ISSN
0366-7022, 1348-0715
Related Report
Peer Reviewed
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[Journal Article] Molecular mixing in donor and acceptor domains as investigated by scanning transmission X-ray microscopy2014
Author(s)
Moritomo, Y ; Sakurai, T ; Yasuda, T ; Takeichi, Y ; Yonezawa, K ; Kamioka, H ; Suga, H ; Takahashi, Y ; Yoshida, Y ; Inami, N ; Mase, K ; Ono, K
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Journal Title
Applied Physics Express
Volume: 7
Issue: 5
Pages: 052302-052302
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Book] 地球化学2013
Author(s)
佐野有司・高橋嘉夫
Total Pages
322
Publisher
共立出版
Related Report