An efficient removal of heavy metal ions in water by photocatalysis

光催化高效去除水中重金属离子

• 批准号: 23651066
• 负责人: SATO Kazunori
• 金额: $ 2.58万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23651066/
• 关键词: 光触媒; 無機イオン交換体; 重金属イオン捕集; 光電析; イオン交換吸着

The photoelectrodeposition effect of titanium oxides(Ti0_2，BaTi_40_9) combined with α-FeOOH fine particles on the removal of lead ions has been investigated. These matelials showed a high photoelectrodeposition ability for lead ions tmder the photo inadiation. The present result indicates that the coexistence of fine α-FeOOH fine particles with the oxide particles contributes to an efficient separation of holes and electrons generated by the photo irradiation. The high-resolution scanning electron microscopic observation revaled that fine α-FeOOH palticles supported on the surface of the oxide particles are effective for the charge separation between holes and electrons. A possible mechanism for the efficient removal of hazardous heavy metal ions dissolved in an aqueous environment is presented

研究了TiO_2、BaTi_4O_9复合α-FeOOH微粒的光电沉积对铅离子的去除效果。这些材料在光照下对铅离子显示出很强的光电沉积能力。结果表明，α-FeOOH微粒与氧化物微粒的共存有助于光辐照产生的空穴和电子的有效分离。高分辨扫描电镜观察表明，负载在氧化物颗粒表面的细小α-FeOOH钯对空穴和电子之间的电荷分离是有效的。提出了一种有效去除水环境中有害重金属离子的可能机理

项目成果

Specific Surface State of Transition Metal Oxides for The Activation of Photoelectrochemical Reactions

过渡金属氧化物的特定表面态用于激活光电化学反应

• 作者: Kazunori Sato;Shinichi Munemura;Teoh WahTzu;Hiroshi Nishiyama;Nobuo Saito;Yasunobu Inoue;Kazunori Sato;Kazunori Sato
• 通讯作者: Kazunori Sato

The Role of Photocatalyst Materials for the Recovely of Heavy Metal Ions in an Aqueous Environment

光触媒材料在水环境中重金属离子回收中的作用

• 发表时间: 2012
• 作者: 森貞真太郎;飯野秀章;廣川能嗣;中野義夫;前田裕介，川喜田英孝，大渡啓介，森貞真太郎;前田裕介，川喜田英孝，大渡啓介，森貞真太郎;Kazunori Sato
• 通讯作者: Kazunori Sato

Removal of Heavy Metal Ions in an Aqueous Environment

水环境中重金属离子的去除

• 发表时间: 2012
• 作者: Kazunoiri Sato,Shinichi Munemura;Yusuke Hoshino,Teoh WahTzu,Hiroshi Nishiyama,Nobuo Saito,Yasunobu Inoue
• 通讯作者: Yusuke Hoshino,Teoh WahTzu,Hiroshi Nishiyama,Nobuo Saito,Yasunobu Inoue

セリア系複合酸化物における水中鉛イオンの光電析機構

水中铅离子在二氧化铈基复合氧化物中的光电沉积机理

• 作者: Kazunori Sato;Shinichi Munemura;Teoh WahTzu;Hiroshi Nishiyama;Nobuo Saito;Yasunobu Inoue;Kazunori Sato;Kazunori Sato;Kazunori Sato;佐藤一則
• 通讯作者: 佐藤一則

Photoelectrodeposition of Heavy Metal Ions from an Aqueous Solution on Ceria-Lanthanum Oxide Dispersed with a-FeOOH Fine Particles

水溶液中的重金属离子在分散有 a-FeOOH 细粒的氧化铈镧上的光电化学沉积

• 发表时间: 2011
• 作者: Kazunori Sato;Shinichi Munemura;Teoh WahTzu;Hiroshi Nishiyama;Nobuo Saito;Yasunobu Inoue
• 通讯作者: Yasunobu Inoue