Electrochemical synthesis and photocatalytic properties of Al_2O_3-ITO-TiO_2 system film

Al_2O_3-ITO-TiO_2体系薄膜的电化学合成及光催化性能

• 批准号: 21760535
• 负责人: MATSUNAGA Naoki
• 金额: $ 2.75万
• 依托单位: Kagoshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760535/
• 关键词: アルミナ; インジュウム固溶体; 酸化スズ; 電析; XRD; XPS; ラマン分光; 紫外可視光; セラミックス; 光吸収材料; 光分解特性; センシング機能; 紫外可視分光

Electrolysis of TiCl_4 aqueous solutions of 0. 0. 1 mol/l was carried out at 10 V/cm of electric filed strength between dense alumina/tin-doped indium oxide(ITO) cathode and carbon anode. The composite cathode dissolved in the solution and was precipitated with TiO_2 on the surface of the electrode. SEM, XRD, EPMA, Raman spectra, UV-vis spectra and XPS were used to analyze the structure of the deposited film. The structure of TiO_2 formed on the surface of the film changed from amorphous to rutile with an increase in heating temperature. The deposited film with TiO_2 absorbed efficiently the photon energy in the wide wavelength range from 200 to 800 nm. The photocurrent flowed between the deposited film with TiO_2 and Pt wire in oxalic acid solutions at pH 5. 8 and accelerated the decomposition of oxalic acid at both the electrodes(C_2O_4^<2->+2□→2CO_2, 2H^+2e^-→H_2).

在致密的氧化铝/锡掺杂氧化铟(ITO)阴极和碳阳极之间以10 V/cm的电场强度对0. 0. 1 mol/l的TiCl_4水溶液进行电解。利用SEM、XRD、EPMA、拉曼光谱、紫外可见光谱和XPS对TiO_2进行了沉淀。分析了沉积薄膜的结构，随着加热温度的升高，薄膜表面形成的TiO_2结构从非晶态转变为金红石态，TiO_2沉积薄膜在200~800的宽波长范围内有效吸收光子能量。在pH 5. 8的草酸溶液中，光电流在TiO_2沉积薄膜和Pt丝之间流动，加速了草酸的分解。电极(C_2O_4^<2->+2□→2CO_2, 2H^+2e^-→H_2)。

项目成果

Structure and Photochemical Property of TiO_2-In_2O_3-SnO_2-Al_2O_3 Film Prepared by Electrolysis of Aqueous Solution

水溶液电解制备TiO_2-In_2O_3-SnO_2-Al_2O_3薄膜的结构及光化学性能

• 发表时间: 2010
• 期刊: Ceramic Transactions
• 作者: N. Matsunaga;K. Oshiro;Y. Hirata;Y. Fukuda;S. Sameshima;T. Yoshidome;T. Ishigaki
• 通讯作者: T. Ishigaki

Synthesis of Nanometer-sized Ceria Particles by Electrolysis of Aqueous Solution

水溶液电解合成纳米二氧化铈颗粒

• 发表时间: 2009
• 作者: T. Hanada;Y. Hirata;N. Matsuanga;S. Sameshima
• 通讯作者: S. Sameshima

Preparation of Metal Oxide Films on ITO Glass by Electrolysis of Aqueous Solutions

水溶液电解在ITO玻璃上制备金属氧化物薄膜

• 发表时间: 2010
• 作者: Y. Hirata;D. Sugimoto;N. Matsunaga;S. Sameshima
• 通讯作者: S. Sameshima

電解法で合成したアルミナ-ITO-チタニア系膜の光化学特性

电解法合成氧化铝-ITO-二氧化钛基薄膜的光化学性能

• 发表时间: 2010
• 作者: 大城啓悟;平田好洋;松永直樹;鮫島宗一郎
• 通讯作者: 鮫島宗一郎

Factors Affecting Formation of Ceria Nanoparticles by Alternating Current Electrolysis of Aqueous Solutions

交流电解水溶液形成二氧化铈纳米粒子的影响因素

• 发表时间: 2011
• 作者: T. Sameshima;Y. Hirata;N. Matsunaga;S. Sameshima
• 通讯作者: S. Sameshima