Efficient catalytic ozonation of bisphenol A by three-dimensional mesoporous CeOx-loaded SBA-16

Jiaxin Mu; Shangyi Li; Jing Wang; Xukai Li; Weirui Chen; Xinyuan Tong; Yiming Tang; Laisheng Li

doi:10.1016/j.chemosphere.2021.130412

Efficient catalytic ozonation of bisphenol A by three-dimensional mesoporous CeO_x-loaded SBA-16

Chemosphere. 2021 Sep:278:130412. doi: 10.1016/j.chemosphere.2021.130412. Epub 2021 Mar 29.

Authors

Jiaxin Mu¹, Shangyi Li¹, Jing Wang², Xukai Li³, Weirui Chen³, Xinyuan Tong¹, Yiming Tang⁴, Laisheng Li⁵

Affiliations

¹ School of Environment, South China Normal University, Guangzhou, 510006, China.
² School of Environment, South China Normal University, Guangzhou, 510006, China; MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, South China Normal University, Guangzhou, 510006, China. Electronic address: jing.wang@m.scnu.edu.cn.
³ School of Environment, South China Normal University, Guangzhou, 510006, China; MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China.
⁴ School of Environment, South China Normal University, Guangzhou, 510006, China; MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, South China Normal University, Guangzhou, 510006, China.
⁵ School of Environment, South China Normal University, Guangzhou, 510006, China; MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, South China Normal University, Guangzhou, 510006, China. Electronic address: llsh@scnu.edu.cn.

PMID: 33838421
DOI: 10.1016/j.chemosphere.2021.130412

Abstract

Herein, we demonstrated the construction of three-dimensional (3D) cerium oxide (CeO_x)/SBA-16 nanocomposites for efficient removal of bisphenol A (BPA) via a catalytic ozonation, with a high BPA mineralization up to 60.9% in 90 min. On one hand, the CeO_x/SBA-16 mesoporous structured materials presented large surface area and uniform pore distribution, which was conducive to the adsorption of transformation by-products (TBPs) and then, the mass transfer. On the other hand, CeO_x/SBA-16 could enhance the ozone utilization efficiency and meanwhile facilitate the formation of OH, the main reactive oxygen species. Through the exploration of dissoluble organic matters and the identification of the reaction intermediates, two BPA degradation pathways were proposed. This approach reported here will benefit the design and construction of mesoporous structured materials for catalytic elimination of hazards to remediate the environment.

Keywords: Bisphenol A; Catalytic ozonation; Cerium oxide; Hydroxyl radical; SBA-16.

MeSH terms

Benzhydryl Compounds
Catalysis
Ozone*
Phenols
Silicon Dioxide
Water Pollutants, Chemical* / analysis

Substances

Benzhydryl Compounds
Phenols
SBA-16
Water Pollutants, Chemical
Ozone
Silicon Dioxide
bisphenol A