Cobalt mediated perovskite as efficient Fenton-like catalysts for the tetracycline removal over a neutral condition: The importance of superoxide radical

Jinxin Li; Dan Zhong; Jianyang Huang; Wencheng Ma; Kefei Li; Menglin Li; Rui Wu; Congqiao Pu; Qi Wang; Yuzhe Zhou; Shaobo Zhang

doi:10.1016/j.chemosphere.2022.137564

Cobalt mediated perovskite as efficient Fenton-like catalysts for the tetracycline removal over a neutral condition: The importance of superoxide radical

Chemosphere. 2023 Feb:313:137564. doi: 10.1016/j.chemosphere.2022.137564. Epub 2022 Dec 13.

Authors

Jinxin Li¹, Dan Zhong², Jianyang Huang³, Wencheng Ma⁴, Kefei Li¹, Menglin Li⁵, Rui Wu⁶, Congqiao Pu⁵, Qi Wang⁷, Yuzhe Zhou¹, Shaobo Zhang¹

Affiliations

¹ State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
² State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China; Harbin Institute of Technology National Engineering Research Center of Urban Water Resources Co., Ltd, Harbin, 150090, China.
³ Quanzhoushi Water Co., Ltd, Quanzhou, 362000, China.
⁴ State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China; Harbin Institute of Technology National Engineering Research Center of Urban Water Resources Co., Ltd, Harbin, 150090, China. Electronic address: damahit@163.com.
⁵ China Construction Second Engineering Bureau Ltd, Beijing, 150090, China.
⁶ Harbin Institute of Technology National Engineering Research Center of Urban Water Resources Co., Ltd, Harbin, 150090, China; Guangdong Yuehai Water Investment Co., Ltd, Shenzhen, 518021, China.
⁷ Harbin Institute of Technology National Engineering Research Center of Urban Water Resources Co., Ltd, Harbin, 150090, China.

PMID: 36526141
DOI: 10.1016/j.chemosphere.2022.137564

Abstract

Cobalt mediated perovskite oxides (Ca-Fe-Co-x) were prepared for heterogeneous Fenton-like, which exhibited excellent tetracycline (TC) degradation efficiency and wider pH suitability (3-11). Experimental results showed that Ca-Fe-Co-1.0 sample displayed the highest degradation rate could reach 80.5% under neutral conditions, and maintain at around 80% after four cycles. The analysis of degradation mechanism showed that the redox of Fe²⁺/Fe³⁺ and Co²⁺/Co³⁺ significant enhanced the activation of H₂O₂ to superoxide radical (∙O₂^-). Meanwhile, the hydroxyl radical (∙OH) was also detected by ESR analysis. In addition, the possible degradation pathway and mechanism of TC were deduced via UPLC-QTOF/MS analysis and density functional theory (DFT) calculations. The toxicity of TC and its intermediates were also evaluated by the ECOSAR software. The Ca-Fe-Co-1.0/nanocellulose aerogel (NCA) displayed highly removal efficiency of TC wastewater in the long-term operation conduction. This study provided a feasible method to design and synthesis heterogeneous Fenton-like catalysts for antibiotic degradation.

Keywords: Cobalt doped; Fenton-like; Perovskite; Superoxide radicals; Tetracycline.

MeSH terms

Anti-Bacterial Agents
Cobalt
Hydrogen Peroxide*
Oxides
Superoxides*
Tetracycline

Substances

perovskite
Superoxides
Hydrogen Peroxide
Cobalt
Oxides
Anti-Bacterial Agents
Tetracycline