Fabrication of Ru(bpy)32+-titanate nanotube nanocomposite and its application as sensitive solid-state electrochemiluminescence sensor material
Fabrication of Ru(bpy)32+-titanate nanotube nanocomposite and its application as sensitive solid-state electrochemiluminescence sensor material
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DOI：
10.1016/j.jpcs.2009.12.028
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发表时间：
2010-04
影响因子：
4
通讯作者：
Jing Xu;Jiaguo Yu;Ming-hua Zhou;Huogen Yu
中科院分区：
文献类型：
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作者：
Jing Xu;Jiaguo Yu;Ming-hua Zhou;Huogen Yu
研究了一种新的、简便的将Ru（bpy）32+固定在钛酸盐纳米管（TiNTs）上的方法，并将其作为一种高灵敏度的固态电化学发光（ECL）传感器材料。该过程涉及通过静电相互作用将TiNTs和Ru（bpy）3（ClO 4）2混合在水介质中形成Ru（bpy）32+-钛酸盐纳米管纳米复合材料（Ru-TiNTs）。然后将Ru-TiNTs附着到Pt电极的表面以形成ECL传感器。采用透射电镜、X射线光电子能谱和场发射扫描电镜对Ru（bpy）32+-钛酸盐纳米管复合材料进行了表征。以三丙胺为共反应物，研究了Ru（bpy）32+固定在TiNTs上的电化学和电化学发光行为。所制备的Ru-TiNTs具有很好的稳定性，其中Ru（bpy）32+物种表现出优异的电化学发光性能。因此，Ru（bpy）32+-钛酸纳米管纳米复合材料在固态电化学发光检测中具有广阔的应用前景。
A novel and facile method for effective immobilization of Ru(bpy)32+within titanate nanotubes (TiNTs) and its application as a sensitive solid-state electrochemiluminescence (ECL) sensor material was studied. The process involved the formation of Ru(bpy)32+-titanate nanotube nanocomposite (Ru-TiNTs) via electrostatic interactions by mixing TiNTs and Ru(bpy)3(ClO4)2in aqueous medium. Then Ru-TiNTs were attached to the surface of a Pt electrode to form an ECL sensor. Characterization of Ru(bpy)32+-titanate nanotube nanocomposite was accomplished by transmission electron microscopy, X-ray photoelectron spectrum, and field emission scanning electron microscope. The electrochemistry and ECL behavior of Ru(bpy)32+immobilized on TiNTs were studied with tripropylamine as a coreactant. As-prepared Ru-TiNTs exhibited very good stability and Ru(bpy)32+species contained showed excellent ECL behavior. Therefore, the as-prepared Ru(bpy)32+-titanate nanotube nanocomposite exhibited great promise as new luminescent materials for solid-state ECL detection.