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A review of semiconductor photocatalyst characterization techniques
Summary
This review systematically covered semiconductor photocatalyst characterization techniques—including UV-vis spectroscopy, photoluminescence, and electron microscopy—providing a framework for understanding structure-performance relationships in photocatalysts for solar energy conversion and environmental pollutant degradation.
Abstract Photocatalysis is expected to solve both energy and environmental problems at the same time. Photocatalysis technology has received increasing attention, and systematically understanding the reaction mechanism of the photocatalytic process is very important for better utilization of solar energy. With the aim of establishing property-performance relationships and discovering the reaction mechanisms, several characterization techniques have been adopted to evaluate the properties of semiconductor photocatalysts, such as UV–visible absorption spectroscopy, photoluminescence spectroscopy, Raman spectroscopy, electrochemical impedance spectroscopy, and cyclic voltammetry. In this review, the principles and characteristics of different characterization techniques are demonstrated with concrete examples to give a clear picture and promote the research of photocatalysis in the future.
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