機能性グラフェンを用いた電子移動速度、活性、選択性の優れた光触媒の開発

使用功能性石墨烯开发具有优异电子转移率、活性和选择性的光催化剂

• 批准号: 15F15050
• 负责人: 坂田 一郎
• 金额: $ 1.54万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2015
• 资助国家: 日本
• 起止时间: 2015-04-24 至 2017-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15F15050/
• 关键词: Ag3PO4 crystals; graphene; photocatalyst; visible-light-driven; graphene oxide; dispersion; stabilization; centrifugation; exfoliation

We report on a novel yet facile approach to the mass production of photocatalytic Ag3PO4 particles by using graphene oxide (GO) sheets as templates. GO was first stabilized with poly(diallyldimethylammonium chloride), a poly-cationic electrolyte, Ag3PO4 crystals of submicro-size and with rhombic dodecahedron and tetrahedral morphologies were then synthesized over the GO sheets by using Ag(NH3)2+ and H2PO4- as the starting materials via precipitation reactions. After a desirable UV irradiation treatment, Ag3PO4 was partially reduced to Ag0 and GO to graphene; tetrahedral crystals consisted of Ag, Ag3PO4 and graphene were obtained. The Ag/Ag3PO4/graphene combinational nanostructures are highly transparent and moreover, showing high visible-light-driven photocatalytic activities. Photodegradation studies with acridine orange (AO) as the targeted chemicals gave better results than TiO2 (P25), WO3, and the sole Ag/Ag3PO4, demonstrating the high applicability of the Ag/Ag3PO4/graphene combinational photocatalyst.

我们报告了一种新的但容易的方法，通过使用氧化石墨烯（GO）片作为模板的光催化Ag 3 PO 4颗粒的大规模生产。首先用聚二甲基二烯丙基氯化铵（一种聚阳离子电解质）稳定GO，然后以Ag（NH3）2+和H2 PO 4-为原料，通过沉淀反应在GO片上合成亚微米级的菱形十二面体和四面体形貌的Ag 3 PO 4晶体。经过适当的紫外光照射处理后，Ag 3 PO 4部分还原为Ag 0，GO部分还原为石墨烯，得到由Ag、Ag 3 PO 4和石墨烯组成的四面体晶体。Ag/Ag 3 PO 4/graphene复合纳米结构具有高的透明性和可见光催化活性。以吖啶橙子（AO）为目标化合物的光降解研究得到了比TiO 2（P25）、WO 3和单独的Ag/Ag 3 PO 4更好的结果，证明了Ag/Ag 3 PO 4/石墨烯组合光催化剂的高适用性。

项目成果

Polymer-derived Nanoporous Carbon Monolith: High Electrochemical Capacitive Behaviors

聚合物衍生的纳米多孔碳整料：高电化学电容行为

• 发表时间: 2016
• 作者: Yanqing Wang;Bunshi Fugetsu;Ichiro Sakata;Zhipeng Wang;Wei Gong;Mauricio Terrones; Morinobu Endo;Mildred Dresselhaus
• 通讯作者: Mildred Dresselhaus

3D HIERARCHICAL POROUS N-DOPED POLYACRYLONITRILE-DERIVED CARBON MONOLITH FOR HIGH-RATE ELECTROCHEMICAL CAPACITIVE ENERGY STORAGE

用于高倍率电化学电容储能的 3D 分级多孔 N 掺杂聚丙烯腈衍生碳块

• 发表时间: 2016
• 作者: Yanqing Wang;Wei Gong;Bunshi Fugetsu;Zhipeng Wang;Shingo Morimoto;Ichiro Sakata;Naoko Matsuda;Gan Jet Hong Melvin;Yoshio Hashimoto; Mauricio Terrones;Morinobu Endo;and Mildred Dresselhaus
• 通讯作者: and Mildred Dresselhaus

the 6th International Conference on Nanoscience and Technology

第六届国际纳米科学与技术会议

• 发表时间: 2015

Mono-dispersed ultra-long single-walled carbon nanotubes as the constitute elements for creation of transparent and electrically conductive thin films in the flexible optoelectrical devices

单分散超长单壁碳纳米管作为柔性光电器件中透明导电薄膜的构成元素

• 发表时间: 2015
• 作者: Yanqing Wang;Bunshi Fugetsu;Ichiro Sakata;Naoko Matsuda
• 通讯作者: Naoko Matsuda

Inviting Lecture on Carbon Nanomaterials

碳纳米材料特邀报告

• 发表时间: 2016