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- Title
Adsorption of tetracycline using the α-FeOOH-loaded rubber-seed-shell-derived activated carbon.
- Authors
Nguyen, My Linh; Nguyen Hoang, Thuy Tien; Le, Duc Trung; Ngo, Hoang Long; Chau, Nha Truc T.; Nguyen, Thanh Tung
- Abstract
Tetracycline is a common pharmaceutical product that is used to treat infections caused by bacteria. However, the overuse of tetracycline (TC) has created a large amount of harmful residue to the environment, thus it is utmost necessary to remove the tetracycline residues in the aquatic environment. There are some conventional tetracycline removal methods, including adsorption, biological treatment, membrane filtration, oxidation, etc. Activated carbon derived from agricultural waste is considered a low-cost and efficient adsorbent for TC adsorption. The use of iron-rich materials also helps enhanced the adsorption capability. In this study, the adsorption process using the activated derived from rubber seed shell (RSSC) and modified with α-FeOOH was investigated. The optimized adsorption parameters were found as pH = 5, adsorbent dosage of 1 g L−1 catalyst, and contact time of 30 minutes. α-FeOOH/RSSC with RSSC:Fe(NO3)3.9H2O = 10:10 (RSSCF10) exhibited the best adsorption performance of 28.94% treatment efficiency and adsorption capacity of 65 mg g−1. The fitting data of kinetic and isotherm proved that tetracycline adsorption mainly resulted from monolayer physical adsorption, and the maximum adsorption capacities of RSSCF10 was 280.753 mg g−1. These results confirmed that RSSCF10 was a highly efficient and cost-effective adsorbent for the removal of tetracycline.
- Subjects
ACTIVATED carbon; TETRACYCLINE; TETRACYCLINES; PHYSISORPTION; ADSORPTION (Chemistry); SORBENTS
- Publication
Water, Air & Soil Pollution, 2023, Vol 234, Issue 9, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-023-06568-2