Design of Tetrahedrally Coordinated Metal Oxides Assembled Catalysts by Applying Dry Process and Their Photocatalytic Performances

四面体配位金属氧化物组装催化剂的干法设计及其光催化性能

• 批准号: 21760630
• 负责人: KAMEGAWA Takashi
• 金额: $ 2.83万
• 依托单位: Osaka 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 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760630/
• 关键词: 光触媒; シングルサイト光触媒; 四配位金属酸化物種; ドライプロセス; 化学蒸着(CVD)法; メソポーラスシリカ; ゼオライト; 可視光利用; メソ多孔性シリカ; CO酸化反応; メソ多孔性材料; Cr,Ti酸化物; エチレンの光重合

Tetrahedrally Coordinated Metal Oxides Assembled Catalysts was designed by a stepwise chemical vapor deposition (CVD) method using metal chlorides, organometallic complexes and metal alkoxides as building blocks. Characterizations by XAFS, UV-vis, photoluminescence measurements showed that the metal oxides in these catalysts existed in the highly dispersed state at the atomic level on the surface of catalyst supports. The comparative studies using single component catalyst as reference revealed that these assembled catalysts have unique and higher photocatalytic performances in various reactions such as CO oxidation and polymerization of ethylene under UV and visible light.

以金属氯化物、有机金属络合物和金属醇盐为基块，采用逐步化学气相沉积(CVD)法设计了四面体配位金属氧化物组装催化剂。XAFS、UV-Vis、光致发光等表征表明，这些催化剂中的金属氧化物在催化剂载体表面的原子水平上以高度分散的状态存在。以单组分催化剂为参照物进行的对比研究表明，这些组装的催化剂在紫外光和可见光下对CO氧化和乙烯聚合等各种反应具有独特的、更高的光催化性能。

项目成果

Design of macroporous TiO2 thin film photocatalysts with enhanced photofunctional properties

• DOI: 10.1039/c0ee00389a
• 发表时间: 2011-04-01
• 期刊: ENERGY & ENVIRONMENTAL SCIENCE
• 影响因子: 32.5
• 作者: Kamegawa, Takashi;Suzuki, Norihiko;Yamashita, Hiromi
• 通讯作者: Yamashita, Hiromi

Preparation of Ti-containing Silica with Hierarchical Macro/Mesoporous Structure and Enhanced Catalytic Activities

具有多级孔/介孔结构和增强催化活性的含钛二氧化硅的制备

• 发表时间: 2010
• 作者: Takashi Kamegawa;Norihiko Suzuki;Hiromi Yamashita
• 通讯作者: Hiromi Yamashita

Preparation of Macroporous TiO_2 Thin Films and their Applications for Photocatalytic Degradation of Organic Pollutants

大孔TiO_2薄膜的制备及其光催化降解有机污染物的应用

• 发表时间: 2009
• 作者: Takashi Kamegawa;Norihiko Suzuki;Hiromi Yamashita
• 通讯作者: Hiromi Yamashita

Design of superhydrophobic surfaces by synthesis of carbon nanotubes over Co-Mo nanocatalysts deposited under microwave irradiation on Ti-containing mesoporous silica thin films.

• DOI: 10.1039/c0cp02215b
• 发表时间: 2011-03
• 期刊: Physical chemistry chemical physics : PCCP
• 作者: Yu Horiuchi;Y. Shimizu;T. Kamegawa;K. Mori;H. Yamashita

Synthesis of Hydroxyapatite-Zeolite Composite Material from Disposed Steel Slag and Investigation of Its Structural and Physicochemical Characteristics

• DOI: 10.1246/cl.2009.626
• 发表时间: 2009-06-05
• 期刊: CHEMISTRY LETTERS
• 影响因子: 1.6
• 作者: Kuwahara, Yasutaka;Ohmichi, Tetsutaro;Yamashita, Hiromi
• 通讯作者: Yamashita, Hiromi