Further understanding the involvement of Fe(IV) in peroxydisulfate and peroxymonosulfate activation by Fe(II) for oxidative water treatment

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 371; pp. 842 - 847
• Main Authors: Wang, Zhen, Qiu, Wei, Pang, Su-yan, Zhou, Yang, Gao, Yuan, Guan, Chaoting, Jiang, Jin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2019
• Subjects: Advanced oxidation process; Ferryl ion; Peroxydisulfate; Peroxymonosulfate; Sulfoxide; Water treatment; Sulfoxide; Water treatment; Peroxydisulfate; Peroxymonosulfate; Ferryl ion; Advanced oxidation process

[Display omitted] •Fe(IV) is the dominant reactive intermediate in the Fe(II)/PMS system at acid pH.•Fe(IV) is also formed at circumneutral pH in the Fe(II)/PMS system.•18O labeled studies further verified the formation of Fe(IV)-oxo species.•Evolution of Fe(IV) in Fe(II)/persulfates systems was pre...