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Efficient removal of antibiotics from the aquatic environment is urgently needed due to their obstinate accumulation and non-biodegradability. In this study, a mesoporous carbon material (ZC-0.5) was successfully synthesized for the adsorption of sulfamethoxazole (SMX), one of the major antibiotics for the treatment of human and animal infections. ZIF-8 as the precursor of ZC-0.5, specifically, using cetyl trimethyl ammonium bromide (CTAB) and sodium laurate (SL) as dual templates and carbonizing at 800 celcius. This novel adsorbent exhibited a high proportion of mesopore (75.64%) and a large specific surface area (1459.73 m(2)center dot g(-1)). The adsorption experiment examined the reusability of ZC-0.5 and that it could retain superior maximum adsorption capacities (167.45 mg center dot L-1) after five cycles of adsorption and desorption. The adsorption process satisfied the pseudo-second-order kinetic (PSO) and mixed first- and second-order kinetic (MOE). It also satisfied the Freundlich and Sips isotherm models. Moreover, thermodynamic calculation indicated the adsorption process was spontaneous, endothermal, and entropy-increasing. Furthermore, plausible adsorption mechanisms were explained through van der Waals force, electrostatic interaction, hydrophobic force, pi-pi interaction, and hydrogen bond. This work offers a new efficient adsorbent for antibiotic elimination.
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN: 0944-1344
Year: 2023
Issue: 21
Volume: 30
Page: 60704-60716
5 . 8 0 0
JCR@2022
ESI Discipline: ENVIRONMENT/ECOLOGY;
ESI HC Threshold:17
Cited Count:
WoS CC Cited Count: 5
SCOPUS Cited Count: 7
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
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