Photocatalytic photoelectrochemical comprehensive test system and method based on light regulation

Abstract

The invention discloses a photocatalysis photoelectrochemistry integrated test system and method based on light control. The system comprises a sunlight simulator, a photochopper, a testing module and a controller, wherein the sunlight simulator comprises a filtering piece and a multi-hole turntable; the filtering piece is positioned on an output light path of the sunlight simulator and is used for obtaining the sunlight in a specific spectral region, and the multi-hole turntable is used for enabling the output light of the filtering piece to be changed into chopping light with the specific frequency and the duty ratio; the testing module comprises a horizontal translation platform, a longitudinal translation platform, a calibrating tester and an electrochemistry tester, the horizontal translation platform is used for adjusting the light intensity of the testing light of a standard cell or a sample, the longitudinal translation platform is used for enabling the standard cell or the sample to be positioned on an output light path center of the photochopper, and the calibrating tester is used for testing the light current of the standard cell. The photocatalysis photoelectrochemistry integrated test system and the method provided by the invention have the advantages that the electrochemical property of a photocatalyst under different light conditions is tested, the photocatalysis research and improvement are further promoted, and the photocatalyst efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis, and more specifically relates to a photocatalytic photoelectrochemical comprehensive test system and method based on light regulation. Background technique [0002] With the growth of population and economy and the improvement of people's living standards, the consumption of energy has also risen sharply. With the continuous consumption of traditional and non-renewable fossil energy, the environmental pollution and other problems caused by it are becoming more and more serious. The development of clean and renewable energy technology has become a major issue of the times. Photocatalytic technology can use solar energy without consuming energy, decompose water into hydrogen or oxygen, and at the same time decompose organic compounds and some bacteria, germs and other microorganisms, which can alleviate environmental pollution and other problems while producing energy. [0003] As the main ...

AI Technical Summary

Problems solved by technology

Among them, the CIMPS photoelectrochemical test system based on the Zahner electrochemical workstation Zennium IM6 has good repeatability in processing experimental data and can realize automatic operation, but it has the following disadvantages: (1) The light source is LED lights, and the spectrum of white LED lights There is a big difference from sunlight; (2) The adjustment of monochromatic light is realized by different LED lights, which increases the complexity of the system; (3) The realization of light modulation is realized by controlling the light source switch to be turned on and off, which is very easy It is difficult to achieve fast modulation, which greatly limits the chopping frequency and shortens the service life of the light source; (4) high cost and complicated operation

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