基本情報(Profile)
最終更新日(Last Updated)2023/06/06樽谷 直紀
Naoki Tarutani
樽谷 直紀
広島大学(Hiroshima University)
学術院（大学院先進理工系科学研究科）(Graduate School of Advanced Science and Engineering)
| 有機-無機ハイブリッド材料 (Organic-Inorganic Hybrid Materials) |
| ナノ材料 (Nanomaterials) |
| 材料科学 (Materials Science) |
| 溶液合成 (Solution Synthesis) |
| 無機材料 (Inorganic Materials) |
| 総合理工(Interdisciplinary science and engineering) | ナノ・マイクロ科学(Nano/Micro science) | ナノ材料化学(Nanomaterials chemistry)(Nanomaterials chemistry) |
| 化学(Chemistry) | 材料化学(Materials chemistry) | 無機工業材料(Inorganic industrial materials)(Inorganic industrial materials) |
教員(Faculty) - 助教相当(Assistant Prof. Equiv.)
自己アピール(Appealing Points)
広島県出身。2012年に大阪府立大学工学部を卒業後、同学大学院工学研究科に進学。在学中にイタリアのサッサリ大学、アルゼンチンのブエノスアイレス大学に留学し、国際的に研究を展開。2017年に学位を取得後、法政大学に助教として着任し、無機合成化学についての研究に取り組んだ。2019年に大阪府立大学に特任助教として移り、超伝導材料や磁性材料に挑戦した後、同年11月から現職。これまでの無機材料、ナノ材料の作製技術をベースに電気化学分野や環境分野へも研究の手を伸ばしている。
研究活動(Research Activities)
- 論文(Published Papers)
-
2021/09 Shell-Thickness Control of Hollow SiO2 Nanoparticles Through Post-treatment Using Sol−Gel Technique Toward Efficient Water Confinement
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 127501 , Peer-Reviewed , 10.1016/j.colsurfa.2021.1275010927-7757 2021/06 Spontaneously formed gradient chemical compositional structures of niobium doped titanium dioxide nanoparticles enhance ultraviolet- and visible-light photocatalytic performance
Scientific Reports, 11(1) , Peer-Reviewed , 10.1038/s41598-021-94512-xhttp://www.nature.com/articles/s41598-021-94512-x 概要はこちら(Description) <title>Abstract</title>Semiconductor photocatalysts showing excellent performance under irradiation of both ultraviolet (UV)- and visible (VIS)-light are highly demanded towards realization of sustainable energy systems. TiO<sub>2</sub> is one of the most common photocatalysts and has been widely investigated as candidate showing UV/VIS responsive performance. In this study, we report synthesis of Nb doped TiO<sub>2</sub> by environmentally benign mechanochemical reaction. Nb atoms were successfully incorporated into TiO<sub>2</sub> lattice by applying mechanical energy. As synthesized Nb doped TiO<sub>2</sub> were metastable phase and formed chemical compositional gradient structure of poorly Nb doped TiO<sub>2</sub> core and highly Nb doped TiO<sub>2</sub> surface after high temperature heat treatment. It was found that formed gradient chemical compositional heterojunctions effectively enhanced photocatalytic performance of Nb doped TiO<sub>2</sub> under both of UV- and VIS-light irradiation, which is different trend compared with Nb doped TiO<sub>2</sub> prepared through conventional methods. The approach shown here will be employed for versatile systems because of simple and environmentally benign process.
2021/05/13 Size Effect of Hydroxide Nanobuilding Blocks and Nonionic Block Copolymer Templates on the Formation of Ordered Mesoporous Structures
The Journal of Physical Chemistry B , Peer-Reviewed , 10.1021/acs.jpcb.1c007132021/04/05 Environmentally Benign Synthesis and Color Tuning of Strontium–Tantalum Perovskite Oxynitride and Its Solid Solutions
Inorganic Chemistry , Peer-Reviewed , 10.1021/acs.inorgchem.0c037582021/03/09 Organic–Inorganic Hybrid Nanocrystal-based Cryogels with Size-Controlled Mesopores and Macropores
Langmuir , Peer-Reviewed , 10.1021/acs.langmuir.0c031122021 Interconnection of organic–inorganic hybrid nano-building blocks towards thermally robust mesoporous structures
Nanoscale, 13(26), 11446-11454 , Peer-Reviewed , 10.1039/D0NR08689D2020/09/09 Robust Structurally Colored Coatings Composed of Colloidal Arrays Prepared by the Cathodic Electrophoretic Deposition Method with Metal Cation Additives
ACS Applied Materials & Interfaces, 12(36), 40768-40777 , Peer-Reviewed , 10.1021/acsami.0c105881944-8244 2020/01 Enhanced visible-light photocatalytic activity of anatase-rutile mixed-phase nano-size powder given by high-temperature heat treatment
Royal Society Open Science, 7(1), 191539 , Peer-Reviewed , 10.1098/rsos.1915392054-5703 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.191539 , 概要はこちら(Description) Nano-size EVONIK AEROXIDE <sup>®</sup> P25 titanium dioxide, TiO <sub>2</sub> , powder was heat-treated at temperatures, 700–900°C, in air. An X-ray diffraction study showed that the P25 powder is composed of approximately 20 and approximately 80 mass% of rutile and anatase phases, respectively. It was also shown that the transformation from anatase to rutile induced by high-temperature heat treatment was almost completed at 750°C, whereas a small amount (less than 3 mass%) of anatase phase was still left even in the powder heat-treated at 900°C. The transformation behaviour was consistent with results obtained by Raman scattering spectroscopy. Raman experiments also indicated that high-temperature heating induced the formation of oxide ion vacancies. Powders were dispersed in methyl orange (MO) aqueous solution, and the bleach rate of MO was measured to evaluate photocatalytic activity under ultraviolet (UV)- and visible-light irradiation. After the heat treatment, the UV-light photocatalytic performance sharply deteriorated. Interestingly, visible-light photocatalytic activity was enhanced by high-temperature heating and reached the highest performance for an 800°C-heated sample, indicating that the P25 powder obtained high visible-light photocatalytic performance after heat treatment. Even after 900°C heat treatment, the photocatalytic performance was higher than that of as-received powder. Enhancement of photocatalytic activities was discussed in relation to visible light absorption and charge carrier transfer.
2019/01/22 Highly Ordered Mesoporous Hydroxide Thin Films through Self-Assembly of Size-Tailored Nanobuilding Blocks
Chemistry of Materials, 31(2), 322-330 , Peer-Reviewed , 10.1021/acs.chemmater.8b030820897-4756 2019/01 Mesoporous microspheres of nickel-based layered hydroxides by aerosol-assisted self-assembly using crystalline nano-building blocks
Journal of Sol-Gel Science and Technology, 89(1), 216-224 , Peer-Reviewed , 10.1007/s10971-018-4810-z0928-0707 http://link.springer.com/content/pdf/10.1007/s10971-018-4810-z.pdf , 2019 Microparticles With Hetero-Nanointerfaces: Controlled Assembly of Cobalt Hydroxide and Nickel Hydroxide Nanoclusters Towards Improved Electrochemical Functions
Journal of Materials Chemistry A, 7(44), 25290-25296 , Peer-Reviewed , 10.1039/c9ta07141e2050-7488 2016/09/06 High-Density Protein Loading on Hierarchically Porous Layered Double Hydroxide Composites with a Rational Mesostructure
Langmuir, 32(35), 8826-8833 , Peer-Reviewed , 10.1021/acs.langmuir.6b019250743-7463 2016/08/23 “Single-Nanometer-Sized Low-Valence Metal Hydroxide Crystals: Synthesis via Epoxide-Mediated Alkalinization and Assembly Toward Functional Mesoporous Materials
Chemistry of Materials, 28(16), 5606-5610 , Peer-Reviewed , 10.1021/acs.chemmater.6b025100897-4756 2016/05/24 Layered Double Hydroxide Nanoclusters: Aqueous, Concentrated, Stable, and Catalytically Active Colloids Toward Green Chemistry
ACS Nano, 10(5), 5550-5559 , Peer-Reviewed , 10.1021/acsnano.6b021101936-0851 2015 Fabrication of hierarchically porous monolithic layered double hydroxide composites with tunable microcages for effective oxyanion adsorption
RSC Advances, 5(70), 57187-57192 , Peer-Reviewed , 10.1039/c5ra05942a2046-2069 概要はこちら(Description) <p>Hierarchical porous monolithic layered double hydroxide composites with size adjusted microcages for efficient CrO<sub>4</sub><sup>2−</sup> oxyanion adsorption.</p>
2014 Layered double hydroxide composite monoliths with three-dimensional hierarchical channels
RSC Advances, 4(31), 16075-16080 , Peer-Reviewed , 10.1039/c4ra00873a2046-2069 2013/12/15 Enhanced photoluminescence emission from anthracene-doped polyphenylsiloxane glass
Optics Letters, 38(24), 5224 , Peer-Reviewed , 10.1364/ol.38.0052240146-9592 2013 Layered double hydroxide (LDH)-based monolith with interconnected hierarchical channels
Journal of Materials Chemistry A, 1(26), 7702 , Peer-Reviewed , 10.1039/c3ta11110e2050-7488
- 所属学協会(Research Society)
-
International Sol-Gel Society / International Sol-Gel Society , 2013 日本化学会 / THE CHEMICAL SOCIETY OF JAPAN , 2018 日本セラミックス協会 / The Ceramic Society of Japan , 2012 日本ゾル-ゲル学会 / The Japanese sol - gel society , 2011 無機マテリアル学会 / THE SOCIETY OF INORGANIC MATERIALS, JAPAN , 2017 電気化学会 / The Electrochemical Society of Japan , 2020
- 学歴(Academic Background)
-
2012/04-2017/03 大阪府立大学 / Osaka Prefecture University, 工学研究科 物質・化学系専攻 / Graduate School of Engineering, マテリアル工学分野 / Department of Materials Science 2008/04-2012/03 大阪府立大学 / Osaka Prefecture University, 工学部, マテリアル工学科
- 職歴(Career Background)
-
2020/04-9999 広島大学 / Hiroshima University, 大学院先進理工系科学研究科 / Graduate School of Advanced Science and Engineering, 助教 / Assistant professor 2019/11-2020/03 広島大学 / Hiroshima University, 工学研究科 応用化学専攻 / Department of Applied Chemistry, Graduate School of Engineering, 助教 / Assistant Professor 2019/04-2019/10 大阪府立大学 / Osaka Prefecture University, 工学研究科 / Graduate School of Engineering, 特任助教 / Research Assistant Professor 2019/04-9999 法政大学 / Hosei University, マイクロ・ナノテクノロジー研究センター / Research Center for Micro-Nano Technology, 客員講師 / Affiliate Lecturer 2017/04-2019/03 法政大学 / Hosei University, 生命科学部 / Faculty of Bioscience and Applied Chemistry, 助教 / Assistant professor 2016/04-2017/03 日本学術振興会 / Japan Society for the Promotion of Science, 特別研究員 DC2 / Research Fellowships for Young Scientists DC2
- 受賞(Award/Honor)
-
2019/11 The 36th International Japan-Korea Seminar on Ceramics / The 36th International Japan-Korea Seminar on Ceramics, The Best Presentation Award / The Best Presentation Award, 樽谷 直紀 / Naoki Tarutani , 2014/08 日本ゾル-ゲル学会, 第12回討論会ベストポスター賞, 樽谷 直紀 ,
- 競争的資金等の研究課題(External Funds)
-
2021/04-2022/03 多元系ナノ材料の新規な合成法開拓と電気化学特性の調査, 高橋産業経済研究財団 / Takahashi Industrial and Economic Research Foundation, 令和3年度研究助成 / Research Promotion （連携研究者）樽谷直紀 / Naoki Tarutani, 研究代表者(principal investigator) 2021/04-2022/03 水酸化物ナノ粒子の還元反応による多元系ナノ粒子合成, 池谷科学技術振興財団 / Iketani Science and Technology Foundation, 研究調査助成 / Research Promotion （連携研究者）樽谷直紀 / Naoki Tarutani, 研究代表者(principal investigator) 2021/04-2023/03 多成分系セラミックスナノ粒子を原料としたハイエントロピー合金ナノ材料の合成 / Synthesis of nanostructured high entropy alloys by using multicomponent hydroxide nanoparticles, 日本学術振興会 / Japan Society for the Promotion of Science, 科学研究費助成事業 新学術領域研究(研究領域提案型) / Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) （連携研究者）樽谷 直紀, 新学術領域研究(研究領域提案型) / Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), 8060000(円), 広島大学 / Hiroshima University, 研究代表者(principal investigator) 2020/04/01-2022/03/31 ナノ構造の設計に基づく高活性な層状水酸化物触媒の創出, 日本学術振興会, 科学研究費助成事業 若手研究 （連携研究者）樽谷 直紀, 若手研究, 4160000(円), 広島大学 2019/11-2020/10 優れた酸素生成触媒機能の発現に向けたナノ界面の制御, 泉科学技術振興財団 / Izumi Science and Technology Foundation, 2019年度研究助成 / Promotion of the science and technology （連携研究者）樽谷 直紀 / Naoki Tarutani, 0(円), 研究代表者(principal investigator) 2019/11-2021/03 有機無機ハイブリッド微粒子を用いた材料設計：マルチスケールの構造精密制御による機能創出, 文部科学省 / Ministry of Education, Culture, Sports, Science and Technology, 卓越研究員事業 / Leading Initiative for Excellent Young Researchers (LEADER) 研究代表者(principal investigator) 2019/08-2021/03 欠陥導入量を制御した金属水酸化物ナノドットのボトムアップ合成, イオン工学振興財団 / The Promotion of Ion Engineering, 2019年度研究助成 / 2019 Research fellowship （連携研究者）樽谷 直紀 / Naoki Tarutani, 0(円), 研究代表者(principal investigator) 2017/10-2018/10 異種ナノコロイドを用いたヘテロ凝集構造導入によるレドックスキャパシタ材料の機能性向上, 泉科学技術振興財団 / Izumi Science and Technology Foundation, 平成29 年度研究助成 / Promotion of the science and technology （連携研究者）樽谷 直紀 / Naoki Tarutani, 0(円), 研究代表者(principal investigator) 2016/04/22-2018/03/31 高効率非対称キャパシタ開発に向けた水酸化ニッケルの化学組成とメソ・マクロ構造設計, 日本学術振興会, 科学研究費助成事業 特別研究員奨励費 （連携研究者）樽谷 直紀, 特別研究員奨励費, 1900000(円), 大阪府立大学
