Abstract
The wide applications of antibiotics in human and veterinary medicines have attracted ever-increasing attention due to their potential adverse effects for ecological environment, therefore, it is urgent and important to efficiently remove antibiotics from water. In this paper, we prepared hierarchical porous carbons from sodium carboxymethyl cellulose (CMCHPCs) via halloysite template and KOH-activation method for efficient removal of chloramphenicol. The physicochemical properties of CMCHPCs are analyzed by means of different characterizations. The adsorption properties of CMCHPCs are evaluated by equilibrium, kinetic, and thermodynamic adsorption experiments. In addition, the effects of ionic strength, solution pH, and humic acid on adsorption are studied. The results indicated CMCHPCs exhibit higher maximum monolayer adsorption capacity up to 769.95 mg/g and shows good regenerability and adaptability. Importantly, the adsorption mechanisms of chloramphenicol adsorbed onto the CMCHPCs are also discussed.
Original language | English |
---|---|
Pages (from-to) | 424-433 |
Number of pages | 10 |
Journal | Journal of the Taiwan Institute of Chemical Engineers |
Volume | 80 |
DOIs | |
State | Published - Nov 2017 |
Externally published | Yes |
Keywords
- Antibiotics removal
- Biomass
- Halloysite template
- Hierarchical porous carbon materials
- KOH-activation