,
Beilstein Arch. 2025, 20259. https://doi.org/10.3762/bxiv.2025.9.v1
Published 17 Feb 2025
Excessive use of tetracycline (TC) antibiotics in aquaculture, particularly in Vietnam, has contributed to environmental contamination and economic losses. To treat the problem, this study developed a novel cellulose-based multicomponent adsorbent material (PGC) synthesized from sodium carboxymethyl cellulose and investigated factors influencing its TC adsorption capacity. The synthesis process was optimized using parameters derived from response surface methodology. The surface and structural properties of PGC were characterized, and their TC adsorption efficiency of PGC was assessed using high-performance liquid chromatography‒mass spectroscopy (HPLC-MS). Elemental analysis of PGC identified four key mechanisms governing its endothermic TC adsorption mechanism: surface complexation, electrostatic interactions, hydrogen bonding, and CH–π interactions, with surface complexation between Ca2+ and TCs being dominant. Batch adsorption experiments conducted to examine the factors influencing adsorption capacity revealed that PGC achieved up to 70% TC removal efficiency at an adsorbent dosage of 40 mg of the initial TC concentration of 60 mg L–1, pH 6–7 reaching equilibrium in 12 h. Verification experiments under optimal conditions confirmed that the adsorption process followed second-order kinetics and the Langmuir adsorption isotherm model. These findings indicate that PGC demonstrates strong potential as an effective adsorbent for the removal of TC antibiotic residues, particularly oxytetracycline, chlortetracycline, TC, and doxycycline
Keywords: adsorption; aquaculture water; removal efficiency; response surface methodology; tetracycline antibiotic;
When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:
Tran, U. B.; Vo-Tran, N. T.; Truong, K. T.; Nguyen, D. A.; Tran, Q. N.; Nguyen, H.-Q.; Lee, J.; Truong-Lam, H. S. Beilstein Arch. 2025, 20259. doi:10.3762/bxiv.2025.9.v1
Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and
Zotero.
© 2025 Tran et al.; licensee Beilstein-Institut.
This is an open access work licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-archives.org/xiv/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this work could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material.
