Author(s)

Huang Jun ¹

Affiliation(s)

¹ Hefei University, Hefei, Anhui, 230009, China

Corresponding Author

Huang Jun

ABSTRACT

Antibiotics, as a new type of pollution, have received much attention in recent years. However, there is currently an incomplete analysis of its environmental hazard mechanism, mechanism of action, and governance measures. This study takes chloramphenicol as the research object and uses dielectric barrier discharge plasma technology to investigate the degradation effect under different discharge voltage, air carrier gas flow rate, and initial concentration of chloramphenicol. The quantitative relationship between them is explored, and the degradation path and degradation products are studied. The main results of this study are as follows: when other parameters are controlled to be consistent, the discharge voltage and carrier gas (air) flow rate of the system are positively correlated with the degradation rate of CAP, while the initial concentration of CAP is negatively correlated with the degradation rate. The degradation rate of chloramphenicol in water after 100 minutes of removal alone is 92.26%; Through characterization analysis, it can be concluded that PAF-45 has a significant high surface area and complex pore structure, which is load coupled Cu@PAF-45-COOH On the basis of developed PAF-45 pores, it overcomes the defects of aromatic main chains and increases the adsorption ability of active particles such as CAP particles and superoxide radicals; Exploring through synergistic catalysis, it was found that the removal rate of CAP is related to PAF-45 Cu@PAF-45-COOH There is a positive correlation between the dosage. By comparison, it was found that the removal rate of DBDP in collaboration with PAF-45 system increased by 24.39%; DBDP Collaboration Cu@PAF-45-COOH The removal rate of the system is about 30% and 10% higher than that of the first two; Based on the analysis of LC-MS detection results, it is believed that the main sites for the structural damage of chloramphenicol are the amide group and the benzene ring. Roughly, the oxidation of the carboxyl group on the benzene ring of chloramphenicol causes the C-Cl bond to break, leading to the dechlorination of the chloramphenicol structure and the removal of biological toxicity; The obtained product undergoes a series of nitro reduction processes such as denitrification and deoxidation, further breaking and finally oxidizing and ring opening degradation to obtain particles such as H₂O, CO₃^2-, NO₃^-, Cl -.

KEYWORDS

DBDP; Collaborative catalysis; Cu@PAF-45-COOH; Chloramphenicol; Load coupling

CITE THIS PAPER

Huang Jun, DBDP collaboration Cu@PAF-45-COOH experimental study on catalytic degradation of chloramphenicol in water . Analytical Chemistry: A Journal (2024) Vol. 3: 11-19. DOI: http://dx.doi.org/10.23977/analc.2024.030103.

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