期刊论文

Hongwei Sun<&wdkj&>Zhihui Ai

英文

Water Research

0043-1354

2023

228

Pt A

119328

10.1016/j.watres.2022.119328

This work was financially supported by the National Natural Science Foundation of China (Grant U20A20129 , 22276068 , 21876058 , 22076061 , and 21936003 , U21A2039 ), and the Fundamental Research Funds for the Central Universities ( CCNU22JC013 , CCNU22JC014 ).

本校为第一机构

Pyrolysis of pharmaceutical sludge (PS) is a promising way of safe disposal and to recover energy and resources from waste. The resulting PS biochar (PSBC) is often used as adsorbent, but has seldom been explored as catalyst. Herein we demonstrate that PSBC (0.4 g/L) could efficiently activate peroxymonosulfate (PMS) to 100% degrade 4-chlorophenol (4-CP) with rate constants of 0.42-1.70 min(-1), outperforming other reported catalysts. Interestingly, the PMS activation pathway highly depended on PSBC pyrolysis temperature, which produced dominantly high-valent iron species (e.g., (FeO2+)-O-IV) ...