Transition metal doped FeOCl activated hydrogen peroxide/persulfate for enhanced degradation of TCH

In the past few decades, the overuse of antibiotics has been a growing concern in the field of medicine. To address this issue, there has been increasing interest in the development of efficient treatment methods. Recently, research has shown that the modification of iron oxychloride with Mn, Co, or Ni can significantly enhance its performance in the degradation of tetracycline hydrochloride. This is attributed to the high similarity between Mn, Co, Ni and Fe, bimetallic systems can be constructed to improve the accelerated cycle of M(II)–M(III) and the activation of hydrogen peroxide, peroxymonosulfate and peroxydisulfate. Additionally, active substances such as SO₄⁻·, ·OH, and ¹O₂ have been identified in the PS system, while ·OH and ¹O₂ are active in the H₂O₂ system. In this study, due to the presence of these active substances, the degradation rate of tetracycline hydrochloride within 10 min in three different systems such as hydrogen peroxide can reach 100%. These findings offer promising prospects for the development of more effective and sustainable treatment methods for antibiotic pollution.