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Facile Fabrication of C-Modified Bi₂WO₆ Photocatalysts with Enhanced Tetracycline Degradation Under Visible Light

Yang Yu

School of Chemistry, Tonghua Normal University, Tonghua, Jilin, P. R. China

E-mail Address: thyy110709@163.com

Corresponding author.

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Yanju Huang

School of Chemistry, Tonghua Normal University, Tonghua, Jilin, P. R. China

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, and

Xiumei Li

School of Chemistry, Tonghua Normal University, Tonghua, Jilin, P. R. China

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https://doi.org/10.1142/S1793292021500107Cited by:4 (Source: Crossref)

Abstract

In order to realize the rational utilization of wastewater treatment, an efficient and conductive 3D hierarchical flowers globose nanostructure of Bi₂WO₆/C is explored from the withered peach blossom for removing the contaminants. As a consequence, Bi₂WO₆/C shows a better degradation efficiency for tetracycline (TC) than Bi₂WO₆ (49%) under visible light, when the mass ratio of Bi₂WO₆ to C is 6:1. Additionally, photoelectrochemical measurements proved that the separation efficiency of electron–hole pairs of Bi₂WO₆ is enhanced by the introduction of biomass carbon, due to its good electron transmission ability. Moreover, the mechanism exploration experiment showed that $\cdot O_{2}^{-}$ $\cdot O_{2}^{-}$ was the main activity species. Meanwhile, the photocatalytic electron transfer mechanism was also investigated. The favorable photocatalytic performances make the waste biomass carbon act as a new resource for being applied to antibiotic wastewater treatment.

Keywords:

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