Skip to main content

Research Repository

Advanced Search

Co-ZIF reinforced cow manure biochar (CMB) as an effective peroxymonosulfate activator for degradation of carbamazepine

Lei, Yongxin; Guo, Xiao; Jiang, Mingjie; Sun, Wen; He, Huan; Chen, Yu; Thummavichai, Kunyapat; Ola, Oluwafunmilola; Zhu, Yanqiu; Wang, Nannan

Co-ZIF reinforced cow manure biochar (CMB) as an effective peroxymonosulfate activator for degradation of carbamazepine Thumbnail


Yongxin Lei

Xiao Guo

Mingjie Jiang

Wen Sun

Huan He

Yu Chen

Kunyapat Thummavichai

Assistant Professor in Materials Engineering

Yanqiu Zhu

Nannan Wang


Excessive emissions of cow manure have put tremendous pressure on environment, the difficulties in disposal methods have presented serious challenges to the livestock industry. Herein, cow manure biochar (CMB) loaded metal-organic framework (ZIF-67) precursors derived Co nanoparticles carbon (Co@NPC) at different temperatures to form biochar-based composites, i.e., Co@NPC-CMB-x. The novel non-homogeneous catalysts activated peroxymonosulfate (PMS) to degrade the carbamazepine (CBZ). The results demonstrated that the pyrolysis temperature directly influenced the intrinsic properties and catalytic ability of products, with the higher pyrolysis temperature favoring the conversion of more graphitic C and graphitic N as active sites. In particular, Co@NPC-CMB-800 showed excellent activation of PMS, degrading 100% CBZ within 30 min. The high specific surface area, highly graphitic structure and the uniform dispersion of cobalt species were the key reasons for the excellent catalytic ability. X-ray photoelectron spectroscopy (XPS) illustrated that the interaction between biochar and transition metal was responsible to generate more reactive oxygen species. Furthermore, electron paramagnetic resonance (EPR) confirmed that non-radical singlet oxygen is the dominant pathway for CBZ degradation by the catalyst. This study provides a new strategy for cow manure application in functional catalysts and offers new prospects for designing efficient biochar-based catalysts for environmental remediation.

Journal Article Type Article
Acceptance Date Aug 30, 2022
Online Publication Date Sep 7, 2022
Publication Date Dec 15, 2022
Deposit Date Sep 21, 2022
Publicly Available Date Sep 8, 2023
Journal Applied Catalysis B: Environmental
Print ISSN 0926-3373
Electronic ISSN 1873-3883
Publisher Elsevier BV
Peer Reviewed Peer Reviewed
Volume 319
Article Number 121932
Keywords Process Chemistry and Technology; General Environmental Science; Catalysis
Public URL
Publisher URL