Conversion of Argan Nutshells into Novel Porous Carbons in the Scope of Circular Economy: Adsorption Performance of Emerging Contaminants

نویسندگان

چکیده

The present work proposes an experimental strategy to prepare argan nutshell-derived porous carbons using potassium hydroxide (KOH). Several parameters of the activation process were evaluated (temperature, impregnation ratio, and time), optimized carbon (ACK) was obtained. surface properties ACK sample determined, applied as adsorbent diclofenac (DCF) paroxetine (PARX). A commercial (CC) used a benchmark. presented higher area micropore volume (1624 m2 g−1 0.40 cm3 g−1, respectively) than CC (1030 0.30 respectively), but maximum adsorption capacities DCF (214–217 mg g−1) PARX (260–275 comparable among two carbons. Besides π-π interactions, H-bonds with electronegative atoms adsorbate molecules electropositive H oxygen functional groups appointed most probable mechanisms for onto carbon. electrostatic attraction also considered, particularly pore size might have been critical, since more supermicropores (0.7–2 nm), which are usually favorable toward pharmaceutical molecules. reusability tested up four cycles adsorption–desorption by ultrasonic washing water. results indicated that no one cycle use should be performed.

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ژورنال

عنوان ژورنال: Applied sciences

سال: 2022

ISSN: ['2076-3417']

DOI: https://doi.org/10.3390/app12157607