Facile Synthesis of Highly Ordered Macroporous CeO2 Film for Methylene Blue Degradation

Cheng Bao Liu; Jun Chao Qian; Feng Chen; Zheng Ying Wu; Zhi Gang Chen

doi:10.4028/www.scientific.net/MSF.787.41

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HomeMaterials Science ForumMaterials Science Forum Vol. 787Facile Synthesis of Highly Ordered Macroporous...

Facile Synthesis of Highly Ordered Macroporous CeO₂ Film for Methylene Blue Degradation

Abstract:

Negative-charged PS microspheres were prepared through emulsifier-free emulsion polymerization method. High-quality PS colloidal crystals were obtained via the horizontal deposition method. Hierarchically ordered macroporous CeO₂ sheets were fabricated on fluorine-doped tin oxide (FTO) substrates using PS colloidal crystals as template by a continuous infiltration process. The structure and morphology of the products were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM) and nitrogen adsorption-desorption. The characterized results showed that macroporous CeO₂ sheets replicated well three-dimensionally (3D) ordered structure derived from PS colloidal crystals template and possessed a relatively large specific surface area. Moreover, the synthesized hierarchical CeO₂ sheets showed the highest photocatalytic activity under solar irradiation and also exhibited remarkable ability to remove methylene blue, suggesting they are promising catalyst for wastewater treatment.

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Periodical:

Materials Science Forum (Volume 787)

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41-45

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.787.41

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Online since:

April 2014

Authors:

Cheng Bao Liu, Jun Chao Qian, Feng Chen, Zheng Ying Wu, Zhi Gang Chen*

Keywords:

Cerium Oxide, Film, Ordered Macroporous, Photocatalytic

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* - Corresponding Author

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