Magnetic nitrogen-doped sludge-derived biochar catalysts for persulfate activation: Internal electron transfer mechanism

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 364; pp. 146 - 159
• Main Authors: Yu, Jiangfang, Tang, Lin, Pang, Ya, Zeng, Guangming, Wang, Jiajia, Deng, Yaocheng, Liu, Yani, Feng, Haopeng, Chen, Song, Ren, Xiaoya
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.05.2019
• Subjects: Free radicals; Internal electron transfer; Persulfate; Sludge biochar; Sp2 and sp3 hybridization; Sp2 and sp3 hybridization; Free radicals; Sludge biochar; Internal electron transfer; Persulfate

•MS-biochar exhibited better catalytic ability than GP, GO and MWCNT.•ASS was the most important contributor for MS-400/600 while CM dominated MS-800.•ASS was effective for SO4− formation and CM was primarily committed to OH.•Iron compounds, doped-nitrogen and graphitic carbon were proved as catalyt...