In this work, a new homogenous Fenton-like reaction, using metastable aluminium ions , was adopted to decompose H O into HO • and degrade OTC in an aqueous solution. It was found that ions can efficiently degrade and mineralize OTC across a wide pH range of 2.5–12.0 without precipitates. Under optimal conditions, OTC can be degraded within ∼10 min, and >60% of total organic carbon (TOC) was removed after reaction for 24 h. Even in a neutral solution, the degradation ratio of OTC can be up to ∼80%.