Issue 7, 2022

Nanocomposites of zirconia@activated carbon derived from a hazelnut shell for the adsorption of tetracyclines from water

Abstract

A nanocomposite of activated carbon derived from hazelnut shell functionalized with zirconia nanoparticles named ZrO2@AC was prepared via a facile pyrolysis method at 700 °C and was used for the adsorptive removal of tetracycline (TC), chlortetracycline (CTC), and oxytetracycline (OTC) from water. ZrO2@AC exhibited high adsorptive capacities for the three antibiotics under the optimal alkaline pH range (9–11 for CTC and 9–10 for TC and OTC) in the following order: CTC (1055.2 mg g−1) > TC (730.8 mg g−1) > OTC (609.6 mg g−1). The adsorptive equilibrium of the three antibiotics by ZrO2@AC was attained within approximately 15 min. The adsorptive amounts of the three antibiotics increased from 15 to 45 °C. The adsorptive data of the three antibiotics were well fitted with Langmuir and pseudo-second-order equations. The thermodynamic analysis indicated that the adsorption of ZrO2@AC for the three antibiotics was spontaneous and endothermic. Our findings illustrate that ZrO2@AC exhibits the potential to diminish tetracycline antibiotics from water.

Graphical abstract: Nanocomposites of zirconia@activated carbon derived from a hazelnut shell for the adsorption of tetracyclines from water

Supplementary files

Article information

Article type
Paper
Submitted
12 Feb 2022
Accepted
07 Apr 2022
First published
29 Apr 2022

Environ. Sci.: Water Res. Technol., 2022,8, 1434-1443

Nanocomposites of zirconia@activated carbon derived from a hazelnut shell for the adsorption of tetracyclines from water

M. Zhu, L. Zhang, Y. Chen, N. You and H. Shen, Environ. Sci.: Water Res. Technol., 2022, 8, 1434 DOI: 10.1039/D2EW00115B

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