用固定在具有固有微孔的Polymer中的钛纳米片铂杂化物进行光电分析氧检测
Photoelectroanalytical Oxygen Detection with Titanate Nanosheet Platinum Hybrids Immobilised into a Polymer of Intrinsic Microporosity
摘要：
本征微孔聚合物PIM 1用于分散和沉积Pt在钛酸盐纳米片光催化剂膜。所得的微孔膜允许电解质和氧气渗透，在黑暗中在玻璃碳或铂盘电极上给出常规的氧还原伏安响应。初步的数据显示，从蓝色LED的脉冲光的电极处的氧还原被有效地关闭。一种机制被暂时指定为光催化耗尽附近的电极的氧。在NaOH、NaCl、Na_2HPO_4水溶液中观察到光电化学电流响应，并显示出光强度和氧浓度依赖性。电分析应用的建议。
英文摘要：
The polymer of intrinsic microporosity PIM 1 is employed to disperse and deposit a Pt at titanate nanosheet photocatalyst film. The resulting microporous films allow electrolyte and oxygen permeation to give conventional oxygen reduction voltammetric responses on glassy carbon or on platinum disk electrodes in the dark. Preliminary data are presented showing that with pulsed light from a blue LED oxygen reduction at the electrode is effectively switched off. A mechanism is tentatively assigned as photocatalytic depletion of oxygen near the electrode. Photoelectrochemical current responses are observed in aqueous NaOH, NaCl, Na2HPO4 and shown to be light intensity and oxygen concentration dependent. Electroanalytical applications are suggested.
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