Synthesis and Control of Oxide Nanoparticle Formation Process from Amine Complex with Dialysis Process and Formation of Integrated Structure.

胺配合物透析过程中氧化物纳米粒子形成过程的合成与控制以及整体结构的形成。

• 批准号: 22550178
• 负责人: UEKAWA Naofumi
• 金额: $ 2.66万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22550178/
• 关键词: セラミックス; ナノ粒子; 溶液中合成; 透析; 酸化亜鉛; 薄膜; 配向; 酸化チタン; 層状複水酸化物; Al-ドープZnO; Nbドープ; 解膠; 硫化物蛍光体

Valence controlled TiO_2 nanoparticles and ZnO nanoparticles can be used as transparent electroconductive materials and UV shielding materials. They also show photocatalytic activity. In order to improve these characteristics, it is important issue to control orientation of the crystallites in sintered compacts and thin films. Stable dispersion of the oxide nanoparticles in solution is essentially important to obtain uniform thins films.In this study, valence controlled TiO_2 nanoparticles and ZnO nanoparticles were prepared by solution process with low temperature heating process. Furthermore, the nanoparticle formation process was carried out in a cellulose tube. The dialysis processes with cellulose tube enabled to obtain the oxide nanoparticles with stable dispersion in a aqueous solution since the formation and growth process was occurred with reducing the impurity ions by dialysis process.Furthermore, the nanosheet particles of Nb^<5+> - doped titanic acid was easily obtained and the highly oriented Nb5+ - doped TiO_2 was formed by only coating process on substrate.

价态控制的TiO_2纳米颗粒和ZnO纳米颗粒可用作透明导电材料和紫外屏蔽材料。它们还表现出光催化活性。为了改善这些特性，控制烧结体和薄膜中微晶的取向是重要的问题。氧化物纳米颗粒在溶液中的稳定分散对于获得均匀的薄膜至关重要。本研究采用低温加热溶液法制备了价态控制的TiO_2纳米颗粒和ZnO纳米颗粒。此外，纳米颗粒的形成过程是在纤维素管中进行的。利用纤维素管的透析过程能够获得在水溶液中稳定分散的氧化物纳米颗粒，因为通过透析过程减少杂质离子的同时发生形成和生长过程。此外，Nb^<5+>掺杂的纳米片颗粒钛酸容易获得，仅通过在基体上涂覆工艺即可形成高度取向的Nb5+掺杂TiO_2。

项目成果

Synthesis of a stable sol of Mn^-doped ZnS nanoparticles by low-temperature heating of sulfide precipitate in ethylene glycol

乙二醇中硫化物沉淀低温加热合成稳定的Mn^2掺杂ZnS纳米粒子溶胶

• 发表时间: 2011
• 影响因子: 1.1
• 作者: 上川直文; 松本貴彬; 小島隆; 掛川一幸
• 通讯作者: 掛川一幸

Characterization of oxides obtained by heating a mixture of peroxoniobic acid and peroxotitanic acid

通过加热过氧铌酸和过氧钛酸的混合物获得的氧化物的表征

• 发表时间: 2011
• 作者: N. Uekawa; Y. Ohsawa; T. Kojima; K. Kakegawa
• 通讯作者: K. Kakegawa

Control of orientation and electrical conductivity of doped ZnO films using a layered doublehydroxide nanoparticle precursor and spark plasma sintering process

使用层状双氢氧化物纳米颗粒前驱体和放电等离子体烧结工艺控制掺杂 ZnO 薄膜的取向和电导率

• 发表时间: 2013
• 影响因子: 6
• 作者: N. Ukawa; T. Saito; T. Kojima; K. Kakegawa
• 通讯作者: K. Kakegawa

アルコキシドとNH_3水の混合静置によるTiO_2ゾル生成過程の検討と得られたTiO_2ナノ粒子の色素吸着特性

研究醇盐和NH_3水混合生成TiO_2溶胶的过程以及所得TiO_2纳米粒子的染料吸附性能

• 发表时间: 2011
• 作者: 上川直文;遠藤直哉;石井啓介;小島隆;掛川一幸
• 通讯作者: 掛川一幸

Synthesis of a stable sol of Mn^- doped ZnS nanoparticles by low-temperature heating of sulfide precipitate in ethylene glycol

乙二醇中硫化物沉淀低温加热合成稳定的Mn^2掺杂ZnS纳米粒子溶胶

• 发表时间: 2011
• 作者: N. Uekawa; T. Matsumoto; T. Kojima; K. Kakegawa
• 通讯作者: K. Kakegawa