Organization of photoenergy conversion systems by using colloidal systems prepared by exfoliation of a layered semiconducting oxide

使用通过层状半导体氧化物剥离制备的胶体系统组织光能转换系统

• 批准号: 20550171
• 负责人: NAKATO Teruyuki
• 金额: $ 3.08万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20550171/
• 关键词: 無機ナノシート; 半導体光触媒; 分散体; 液晶; 層状ニオブ酸塩; 剥離; ナノシート分散体; 光誘起電子移動; 光触媒的水素発生; 電場配向; 相分離; ナノシート; 水の分解; エマルション; メチルビオロゲン

Nanosheet colloids of a photocatalytically active semiconducting oxide were prepared by exfoliation of layered niobate, and their photochemical functions were examined for three reactions related to photoenergy conversion : photoinduced charge separation between the nanosheet and an electron acceptor, photoinduced electron accumulation in the nanosheet, and photocatalytic hydrogen evolution from water. All of the reactions were largely affected by the addition of clay nanosheets. In particular, for the former reactions, yield and stability of the products greatly increased in the presence of an appropriate amount of clay. The results demonstrate that the nanosheet colloids can be applied to novel photoenergy conversion systems.

通过剥离层状铌酸盐制备了光催化活性半导体氧化物纳米片胶体，并检查了其光化学功能，用于与光能转换相关的三个反应：纳米片和电子受体之间的光致电荷分离、纳米片中的光致电子积累和光催化从水中析出氢气。所有反应很大程度上受到粘土纳米片添加的影响。特别是对于前一种反应，在适量粘土的存在下，产物的收率和稳定性大大提高。结果表明，纳米片胶体可应用于新型光能转换系统。

项目成果

無機ナノシートによる光機能性スマートコロイド

由无机纳米片制成的光功能智能胶体

• 发表时间: 2011
• 作者: Kazuyuki HIRAOKA;Atsushi KATO;Hideaki HATTORI;Yoshinori SASAKI;Yoshihiro OMATA;Kenji KOGUMA;Nobuyuki BAN;Masato OSHIMA;中戸晃之
• 通讯作者: 中戸晃之

Photoinduced Electron Accumulation in Semiconducting Nanosheets in Colloidal Dispersions Prepared by Exfoliation of a Layered Niobate

层状铌酸盐剥离制备的胶体分散体中半导体纳米片的光致电子积累

• 发表时间: 2009
• 作者: 中戸晃之;山田佳美
• 通讯作者: 山田佳美

Visible-light-induced electron transfer in intercalation-type composites organized on photocatalytically active layered niobate

光催化活性层状铌酸盐插层复合材料中的可见光诱导电子转移

• 发表时间: 2011
• 期刊: J.Ceram.Soc.Jpn. 印刷中
• 作者: T.Nakato;H.Kamase;R.Shinozaki
• 通讯作者: R.Shinozaki

Electrooptic Response of Colloidal Liquid Crystals of Inorganic Oxide Nanosheets Prepared by Exfoliation of a Layered Niobate

• DOI: 10.1021/jp201056q
• 发表时间: 2011-05-12
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Nakato, Teruyuki;Nakamura, Koichiro;Miyata, Hirokatsu
• 通讯作者: Miyata, Hirokatsu

Photochemical Reactions in Colloidal Mixtures of Exfoliated Clay and Semiconductor Nanosheets

剥落粘土和半导体纳米片的胶体混合物中的光化学反应

• 发表时间: 2010
• 作者: T.Nakato;Y.Yamada;M.Nakamura
• 通讯作者: M.Nakamura