Ball-Milled Spent Coffee Ground Biochar Effectively Removes Caffeine from Water DOI Open Access
Yicheng Yang, Yongshan Wan, Jianjun Chen

et al.

Water, Journal Year: 2025, Volume and Issue: 17(6), P. 881 - 881

Published: March 19, 2025

Caffeine in aquatic ecosystems is an emerging contaminant causing significant environmental concern. In this work, spent coffee ground (SCG) was pyrolyzed at 300, 450, and 600 °C to produce pristine SCG biochars (CG), which were then ball-milled (BMCG). A batch experiment with showed that 450 had the highest capacities adsorb caffeine. Subsequently, CG450 (BMCG450) selected for further analysis. The results ball milling dramatically augmented specific surface area oxygen-containing functional groups of biochar. Langmuir maximum caffeine adsorption capacity 82.65 mg/g. Both solution pH ionic strength affected removal by BMCG450. As increased, increased electrostatic repulsion limited onto However, increase ion slightly enhanced because screening effect cations. biochar also high efficiency a completely mixed flow reactor under continuous conditions. Our study indicates can serve as viable sorbent from water.

Language: Английский

Removal of pharmaceutical compounds by chitosan nanocomposite membranes with catalytic additives from wastewater DOI
Prativa Mahato,

Fathima Arshad,

Mohamed E.M. Ali

et al.

Desalination, Journal Year: 2025, Volume and Issue: 602, P. 118635 - 118635

Published: Jan. 30, 2025

Language: Английский

Citations

0
Ball-Milled Spent Coffee Ground Biochar Effectively Removes Caffeine from Water DOI Open Access
Yicheng Yang, Yongshan Wan, Jianjun Chen

et al.

Water, Journal Year: 2025, Volume and Issue: 17(6), P. 881 - 881

Published: March 19, 2025

Caffeine in aquatic ecosystems is an emerging contaminant causing significant environmental concern. In this work, spent coffee ground (SCG) was pyrolyzed at 300, 450, and 600 °C to produce pristine SCG biochars (CG), which were then ball-milled (BMCG). A batch experiment with showed that 450 had the highest capacities adsorb caffeine. Subsequently, CG450 (BMCG450) selected for further analysis. The results ball milling dramatically augmented specific surface area oxygen-containing functional groups of biochar. Langmuir maximum caffeine adsorption capacity 82.65 mg/g. Both solution pH ionic strength affected removal by BMCG450. As increased, increased electrostatic repulsion limited onto However, increase ion slightly enhanced because screening effect cations. biochar also high efficiency a completely mixed flow reactor under continuous conditions. Our study indicates can serve as viable sorbent from water.

Language: Английский

Citations

0