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Yellow Tungsten Oxide Photocatalytic Material

Yellow tungsten oxide photocatalytic material is an ideal catalytic material that has advantages of excellent photocatalytic activity, relatively wide sources and relatively low cost. However, the performance of metal oxides such as tungsten oxide in the oxygen molecule activation system is not so good, and it cannot effectively capture solar energy and transfer it to oxygen molecules.

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yellow tungsten oxide photocatalytic material image

In this regard, the researchers designed a type of tungsten oxide nanostructure with precisely controlled oxygen vacancy defect states. This structure exhibits excellent aerobic coupling catalytic performance under broad-spectrum lighting conditions, and is expected to achieve low energy consumption and low cost organic chemical technology. Generally, the metal atoms of metal oxides are characterized by coordination saturation, and oxygen molecules cannot be activated by chemical adsorption. The construction of oxygen vacancy defects overcomes this shortcoming and promotes the efficient transfer of photogenerated electrons from oxide catalysts to oxygen molecules. On the other hand, the appearance of defect states greatly widens the light absorption range of the photocatalyst, allowing it to capture solar energy in a wide spectrum of visible light and near infrared light. This realizes effective solar energy capture and energy conversion and transfer, and solves the bottleneck problem of yellow tungsten oxide photocatalytic materials in photocatalytic organic synthesis.

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