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l-Cysteine and barium titanate co-modified enteromorpha biochar as effective peroxymonosulfate activator for atrazine treatment.

Authors :
Xiong, Sheng
Zeng, Hao
Tang, Rongdi
Abdullah Al-Dhabi, Naif
Li, Wenbo
Zhou, Zhanpeng
Li, Ling
Tang, Wangwang
Gong, Daoxin
Deng, Yaocheng
Source :
Bioresource Technology. Mar2024, Vol. 396, pN.PAG-N.PAG. 1p.
Publication Year :
2024

Abstract

[Display omitted] • The synergistic effect of enhanced electron-donating, and piezoelectricity. • Catalyst/PMS system under piezoelectric potential are calculated by DFT. • l -Cysteine enhanced biochar's hydrophilicity and electron donating ability. • Singlet oxygen dominated on atrazine removal. In this study, pyrolysis and hydrothermal methods were used for Enteromorpha biochar that was co-modified with l -cysteine and barium titanate (LBCBa). It has great environmental tolerance and can remove 93.0 % of atrazine (ATZ, 10 mg·L−1) within 60 mins of ultrasonic treatment. The enhanced hydrophilicity, electron-donating capability, and piezoelectricity of LBCBa are considered to induce excellent performance. The apparent reaction rate of the LBCBa-2/PMS/ATZ system with ultrasonic was 2.87 times that without ultrasonic. The density functional theory points out that, introducing l -cysteine to carbon edges improves the adsorption of ATZ and peroxymonosulfate (PMS), making PMS easier to activate. This work offered unique insights for fabricating effective catalysts and demonstrated the combination of hydrophilic functional groups and piezoelectricity in improving catalytic performance and stability. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09608524
Volume :
396
Database :
Academic Search Index
Journal :
Bioresource Technology
Publication Type :
Academic Journal
Accession number :
175680314
Full Text :
https://doi.org/10.1016/j.biortech.2024.130461