Microwave-assisted one-pot preparation of magnetic cactus-derived hydrochar for efficient removal of lead(â
¡) and phenol from water: Performance and mechanism exploration.
Bioresour Technol
; 388: 129789, 2023 Nov.
Article
em En
| MEDLINE
| ID: mdl-37741577
ABSTRACT
A novel magnetic hydrochar derived from cactus cladode (MW-MHC) was successfully synthesized through one-pot microwave-assisted process for efficiently removing lead(Pb)(â
¡) and phenol. From batch adsorption experiments, MW-MHC possessed the highest uptake amounts for Pb(â
¡) and phenol of 139.34 and 175.32 mg/g within 20 and 60 min, respectively. Moreover, the removal of Pb(â
¡) and phenol by MW-MHC remained essentially stable under the interference of different co-existing cations, presenting the excellent adaptability of MW-MHC. After three cycles of regeneration experiments, MW-MHC still had preferable adsorption performance and could be easily recycled, indicating its excellent reusability. Significantly, the uptake mechanisms of Pb(â
¡) on MW-MHC were regarded as chemical complexation, pore filling, precipitation, and electrostatic attraction. Meanwhile, the phenol uptake might be dominated by π-π interaction and hydrogen bonding. The above consequences revealed that MW-MHC with high removal performance was a promising adsorbent for remediating wastewater containing heavy metals and organics.
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MEDLINE
Assunto principal:
Poluentes Químicos da Água
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Água
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article