Y
Yoshio Takahashi
Researcher at University of Tokyo
Publications - 479
Citations - 11908
Yoshio Takahashi is an academic researcher from University of Tokyo. The author has contributed to research in topics: Adsorption & Chemistry. The author has an hindex of 50, co-authored 403 publications receiving 9801 citations. Previous affiliations of Yoshio Takahashi include Japan Agency for Marine-Earth Science and Technology & Hiroshima University.
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Journal ArticleDOI
Arsenic Behavior in Paddy Fields during the Cycle of Flooded and Non-flooded Periods
Yoshio Takahashi,Reiko Minamikawa,Keiko Hattori,Katsuaki Kurishima,Nobuharu Kihou,Kouichi Yuita +5 more
TL;DR: This work, primarily based on data from an actual paddy field, suggests that rice plants are enriched in As because the rice grows in flooded paddy fields when mobile As(III) is released to soil water.
Journal ArticleDOI
Bioreductive deposition of platinum nanoparticles on the bacterium Shewanella algae.
Yasuhiro Konishi,Kaori Ohno,Norizoh Saitoh,Toshiyuki Nomura,Shinsuke Nagamine,Hajime Hishida,Yoshio Takahashi,Tomoya Uruga +7 more
TL;DR: An environmentally friendly method using the metal ion-reducing bacterium Shewanella algae was proposed to deposit platinum nanoparticles to reduce aqueous PtCl(6)(2-) ions into elemental platinum at room temperature and neutral pH within 60min when lactate was provided as the electron donor.
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Comparison of antimony behavior with that of arsenic under various soil redox conditions.
TL;DR: The oxidation states and host phases of Sb and As in soil samples of mine tailing (Ichinokawa mine, Ehime, Japan) and in laboratory soil-water systems were determined by X-ray absorption fine structure (XAFS) spectroscopy and suggest that Sb(V) is a very stable form in the environment and that S b is oxidized at more negative Eh than As.
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Arsenic release from flooded paddy soils is influenced by speciation, Eh, pH, and iron dissolution
TL;DR: Ratios of released As to Fe from the soils were decreased with incubation time during both anaerobic incubation and abiotic dissolution by sodium ascorbate, suggesting that a larger amount of As was associated with an easily soluble fraction of Fe (hydr) oxide in amorphous phase and/or smaller particles.
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Chemical and structural control of the partitioning of Co, Ce, and Pb in marine ferromanganese oxides
TL;DR: In this paper, the authors characterized the oxidation state and mineral phase association of Co, Ce, and Pb in hydrogenetic, diagenetic, and hydrothermal marine ferromanganese oxides.