Persulfate activation by nano zero-valent iron for the degradation of metoprolol in water: influencing factors, degradation pathways and toxicity analysis.

ABSTRACT: In this study, nano zero-valent iron (nZVI) was utilized to activate persulfate (PS) for the degradation of metoprolol (MTP), a commonly used drug for curing cardiovascular diseases, in water. Quenching tests indicated that both the sulfate radical (SO₄˙^-) and hydroxyl radical (˙OH) contributed to the degradation of MTP, while SO₄˙^- seemed to play a large role under natural pH conditions. Batch tests were conducted to investigate the effects of several influencing factors, such as PS concentration, initial MTP concentration, pH, temperature and common anions, on the degradation performance of MTP. Generally, lower MTP concentration and pH values, and higher PS concentration and temperature favoured MTP degradation. HCO₃ ^-, N

SUBMITTER: Gao YQ 

PROVIDER: S-EPMC9054289 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature