Jung, Kyung-Won Kim, Jun-Ho Choi, Jae-Woo 2024-01-19T18:00:55Z 2024-01-19T18:00:55Z 2021-09-05 2020-04 1359-8368 https://pubs.kist.re.kr/handle/201004/118811 The widespread overuse of antibiotics has led to the serious risks human life and environmental sustainability. Even though porous carbon composite derived from metal-organic framework (MOF) has been recognized as an efficient adsorbent for sequestering antibiotics owing to its unique properties, the major drawback is the use of the expensive material, such as terephthalic acid (H2BDC), as an organic ligand, thus weakening its cost effectiveness and practical applicability. Herein, we successfully recovered H2BDC from polyethylene terephthalate (PET) waste bottles via ultrasound-assisted, phase-transfer-catalyzed alkaline hydrolysis under mild conditions. The process conditions were statistically optimized by applying response surface methodology (RSM) based on the Box-Behnken design. As results, 99.91-100% H2BDC recovery was achieved under the following optimized conditions: NaOH concentration = 14.5%; temperature = 83.2 degrees C; and time = 1.5 h. High-purity H2BDC was used as an organic ligand in the synthesis of magnetic porous carbon (alpha-Fe/Fe3C) composite derived from iron-based MOF, and its utilization as an adsorbent for the removal of TCH from aqueous solution was investigated. The as-prepared alpha-Fe/Fe3C composite comprised alpha-Fe, Fe3C, and graphitic carbon and exhibited mesoporous structure and superparamagnetic behavior, resulting in an effective adsorption performance and magnetic separation. Its adsorption properties were examined in terms of solution pH, contact time, initial TCH concentration, and temperature. Adsorption kinetics and isotherm data were well-suited to the pseudo-second-order and Langmuir models, respectively. Considering its excellent reusability and magnetic separability, the alpha-Fe/Fe3C composite showed immense potential for antibiotic-contaminated wastewater remediation. English ELSEVIER SCI LTD Synthesis of magnetic porous carbon composite derived from metal-organic framework using recovered terephthalic acid from polyethylene terephthalate (PET) waste bottles as organic ligand and its potential as adsorbent for antibiotic tetracycline hydrochloride Article 10.1016/j.compositesb.2020.107867 1 COMPOSITES PART B-ENGINEERING, v.187 COMPOSITES PART B-ENGINEERING 187 N scie scopus 000521118100010 2-s2.0-85079093005 Engineering, Multidisciplinary Materials Science, Composites Engineering Materials Science Article PERSONAL CARE PRODUCTS PHOTOCATALYTIC DEGRADATION ALKALINE-HYDROLYSIS ADSORPTIVE REMOVAL WATER-TREATMENT MIL-53 FE NANOCOMPOSITE ULTRASOUND POLY(ETHYLENE-TEREPHTHALATE) PHARMACEUTICALS Polyethylene terephthalate waste bottle Ultrasound-assisted alkaline hydrolysis Terephthalic acid Magnetic porous carbon composite Tetracycline antibiotics