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- Title
Impact of H<sub>3</sub>PO<sub>4</sub>-activated carbon from pine fruit shells for paracetamol adsorption from aqueous solution.
- Authors
Hamadneh, Imad; Abu-Zurayk, Rund A.; Aqel, Aseel; Al-Mobydeen, Ahmed; Hamadneh, Lama; Al-Dalahmeh, Yousef; Hannoon, Fayza; Albuqain, Rula; Alsotari, Shorouq; Al-Dujaili, Ammar H.
- Abstract
The synthesis of activated carbon (AC) from pine fruit shells (PFS) biomass (BM) is described in this paper. AC was made from BM by gradual pyrolysis at 600°C. AC was also chemically activated with H3PO4 (BC-H3PO4) and pyrolyzed at 600°C. BM, BC, and BC-H3PO4 adsorbents were characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, thermal gravimetric analysis, and elemental analysis. The batch system was used to apply the BM, BC, and BC-H3PO4 to the adsorption of paracetamol (PCM) from aqueous solution. Adsorption was evaluated in relation to adsorbent dosage, ionic strength, initial pH solution, contact time, and temperature. Based on their coefficient of determination (R²), chi-square (χ²) and error function (Ferror%) values, equilibrium and kinetic PCM adsorption data revealed that the process obeys the Langmuir, Dubinin-Radushkevich, and pseudo-second-order kinetic equations, respectively. According to the Langmuir model, the highest adsorption capacity for PCM by BM, BC, and BC-H3PO4 was 99.010, 166.667, and 256.10 mg/g, respectively. Thermodynamic analysis revealed that PCM adsorption by the adsorbents is spontaneous and exothermic.
- Subjects
AQUEOUS solutions; THERMOGRAVIMETRY; ADSORPTION (Chemistry); ACTIVATED carbon; ADSORPTION capacity; IONIC strength
- Publication
Desalination & Water Treatment, 2022, Vol 264, p293
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2022.28589