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Citation: Lufa Hu, Zhangyang Li, Jumabubi Yisak, Chunling Wang, Li Ma. Design and Exploration of Synthesis of Polyoxometalates Based Photocatalyst and Their Performance of Solar Light Driven CO₂ Conversion to Formic Acid in Experimental Teaching[J]. University Chemistry, ;2023, 38(9): 148-155. doi: 10.3866/PKU.DXHX202210066 shu

Design and Exploration of Synthesis of Polyoxometalates Based Photocatalyst and Their Performance of Solar Light Driven CO₂ Conversion to Formic Acid in Experimental Teaching

Lufa Hu ¹ ,
Zhangyang Li ¹ ,
Jumabubi Yisak ¹ ,
Chunling Wang ^1,, ,
Li Ma ^2,,

1.
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2.
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Corresponding author: Chunling Wang, Li Ma,
Received Date: 26 October 2022

The effective conversion of carbon dioxide (CO₂) into high value-added carbon-containing chemicals or liquid fuels in mild condition is greatly significant for reducing air pollution and supplementing carbon-containing energy shortages. Polyoxometalates (POMs) possess semiconductor-like properties, reversible redox properties, and structural stability, which represent a class of good electron acceptors that can effectively enhance the photocatalytic performance of semiconductor catalysts. This paper discusses an innovatively designed comprehensive experiment based on scientific research results. The CrMo₆/TiO₂ photocatalyst was prepared by loading Anderson type POMs, such as CrMo₆ on TiO₂, by the impregnation method. The material structure was analyzed by means of Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and UV-Vis diffuse reflectance. The research results showed that CrMo₆/TiO₂ can efficiently convert carbon dioxide into formic acid and other liquid products. Anderson type POMs modification of TiO₂ can reduce the energy band gap and the energy required for photocatalysis. This experiment combines inorganic chemistry, physical chemistry, materials chemistry, organic chemistry, analytical chemistry, and other basic chemistry courses, popularizes the concepts of synthetic chemistry and green chemistry, and improves students' environmental awareness, innovation ability, and comprehensive ability.
- POMs based catalyst,
- Photocatalysis,
- CO₂ hydrogenation,
- Comprehensive experiment
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Design and Exploration of Synthesis of Polyoxometalates Based Photocatalyst and Their Performance of Solar Light Driven CO2 Conversion to Formic Acid in Experimental Teaching

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通讯作者: 陈斌, bchen63@163.com

Design and Exploration of Synthesis of Polyoxometalates Based Photocatalyst and Their Performance of Solar Light Driven CO₂ Conversion to Formic Acid in Experimental Teaching