Response surface methodology-optimized removal of chloramphenicol pharmaceutical from wastewater using Cu3(BTC)2-derived porous carbon as an efficient adsorbent - 10/12/19
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Abstract |
The prevalent presence of antibiotic compounds (e.g., chloramphenicol [CAP]) in wastewater and effluents without pretreatment can bring adverse impacts on human and animals; therefore, the remediation of these substrates is emergently essential. To synthesize the novel mesoporous carbon for chloramphenicol remediation, we pyrolyzed a species of copper-based metal-organic framework, namely Cu3(BTC)2 (BTC = 1,3,5-benzenetricarboxylic acid), at 700 °C, characterized by several physical analytical techniques, such as X-ray powder diffraction, scanning/transmission electron microscopy, and N2 adsorption/desorption isotherm measurement. The procedure to optimize the optimum conditions for the removal of CAP was conducted based on investigating three factors including concentration (1.6–18.4 mg/L), adsorbent dosage (0.08–0.92 g/L), and pH (2.6–9.4). As a consequence, up to 87.6% of chloramphenicol could be removed from water under these conditions. Moreover, the effects of contact time (0–120 min) and concentration (10–40 mg/L), as well as other adsorption kinetic and isotherm models, were vigorously studied. With a relatively high surface area (78.8 m2/g), many functional groups on the surface (2.44 mmoL/g for acidic and base groups), and high maximum adsorption capacity (37.2 mg/g), the mesoporous carbon from Cu3(BTC)2 can be used as an efficient adsorbent for CAP removal from wastewater.
Le texte complet de cet article est disponible en PDF.Highlights |
• | The novel CMC700 was produced from the pyrolysis of Cu3(BTC)2 metal-organic framework. |
• | Response surface methodology was used to optimize chloramphenicol adsorption. |
• | Kinetic and isotherm models for chloramphenicol adsorption over CMC700 were studied. |
• | The maximum adsorption capacity was 37.2 mg/g. |
Keywords : Response surface methodology, Metal-organic framework, Mesoporous carbon, Cu3(BTC)2, Chloramphenicol antibiotic
Plan
Vol 22 - N° 11-12
P. 794-803 - novembre 2019 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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