Mechanistic insights into enhanced permanganate activation by biochar derived from aluminum sludge: Critical roles of persistent free radicals and alumina

Zhongquan He

doi:10.1016/j.envres.2026.125467

Mechanistic insights into enhanced permanganate activation by biochar derived from aluminum sludge: Critical roles of persistent free radicals and alumina

2026-08-11

0

PRE

AI

Z

Zhongquan He

Y

Yin Wei

陈

陈浩楠 (Haonan Chen)

J

Junyu Wu

C

Cheng Han

X

Xilei Jia

J

Junfeng Wang

W

Weiwei Hou

C

Chuanliang Zhao

L

Lanlan Liang *

L

Liwei Yang *

DOI：10.1016/j.envres.2026.125467

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• A novel alumina-biochar composite catalyst (Al2O3@BC) was prepared from waste sludge. • Al2O3@BC exhibited high performance for phenolic pollutants removal in actual water. • The key active sites of PFRs can highly reduce Mn(VII) to generate reactive Mn(III). • The Al2O3 on catalyst significantly increased the oxidation potential of Mn(VII). • Life cycle assessment (LCA) revealed that Al2O3@BC showed environmental advantages.

Mechanistic insights into enhanced permanganate activation by biochar derived from aluminum sludge: Critical roles of persistent free radicals and alumina

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