Apparatus for photocatalysis-induced electrochemiluminescence based on bipolar electrodes
A bipolar electrode and electrochemical technology, applied in the field of analytical instruments, can solve problems such as unfavorable visual analysis, achieve simple structure, convenient operation, and prevent mutual interference
Inactive Publication Date: 2014-11-05
NANJING UNIV
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Problems solved by technology
Conventional photoelectrochemical analysis technology (photocatalytic technology) must rely on electrochemical workstations. The photoelectrode is both a reporting electrode and a detecting electrode. It only uses photocurrent as a signal, which is not conducive to visual analysis.
Method used
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Embodiment 1
[0015] Example 1. Photocatalytic production of electrochemiluminescent devices and hydrogen peroxide (H 2 o 2 ) detection
[0016] 1. Manufacturing method of the device:
[0017] Make two apertures of suitable diameter on the cover of rectangular parallelepiped quartz detection cell 6 (20mm * 20mm * 55mm), install platinum wire driving electrode-1 and photoelectrode 2; 25mm, height is 50mm) on the cover to make two small holes of suitable diameter, install platinum wire drive electrode 2 and ECL electrode 3, and connect photoelectrode 2 and ECL electrode 3 with copper core wire 5 to complete Photocatalytic production of electrochemiluminescent devices based on bipolar electrodes.
[0018] 2. Experimental conditions
[0019] The experimental conditions are: in the detection cell 6, the driving electrode 1 is a platinum wire electrode, the photoelectrode 2 is an indium tin oxide (ITO) conductive glass electrode of 5mm*15mm, and the photoelectric active material modified on i...
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Abstract
The invention provides an apparatus for photocatalysis-induced electrochemiluminescence (ECL) based on bipolar electrodes. The apparatus mainly comprises a detection pool 6 and a report pool 7, wherein a driving electrode I 1 and a photoelectrode 2 are installed in the detection pool 6, an ECL electrode 3 and a driving electrode II 4 are mounted in the report pool 7, the photoelectrode 2 is connected with the ECL electrode 3 through a lead 5 (wherein 2, 3 and 5 are called as bipolar electrodes as a whole), the driving electrode I 1 and the driving electrode II 4 are respectively connected with two poles of a direct-current source, the photoelectrode is aligned with an exciting light source, and the report pool is placed on an optical signal detector. The apparatus for photocatalysis-induced electrochemiluminescence based on the bipolar electrodes has the advantages of a novel layout, accurate detection results and a simple structure.
Description
technical field [0001] The invention relates to the technical field of analytical instruments, and relates to a device for generating electrochemiluminescence by photocatalysis. Background technique [0002] A bipolar electrode (also known as a wireless electrode) is a section of conductor that generates a certain voltage difference between its two ends under the action of an electric field. It has the advantages of simple structure and convenient use. Has been widely used in analytical testing and electrochemical industry and other fields. Conventional photoelectrochemical analysis technology (photocatalytic technology) must rely on electrochemical workstations. The photoelectrode is both a reporter electrode and a detection electrode. It only uses photocurrent as a signal, which is not conducive to visual analysis. [0003] Expressing the amount of analyte by the intensity of the light signal is a development direction of the current analysis technology. Using light as t...
Claims
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IPC IPC(8): G01N27/30
CPCG01N21/76G01N21/69
Inventor 潘建斌徐静娟陈洪渊
Owner NANJING UNIV