| Autor: |
Temitope O․ Fakoya, John A․ O․ Oyekunle, Abolanle S․ Adekunle, Adeniyi J․ Oyinloye, Ikechukwu P․ Ejidike |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Chemical Thermodynamics and Thermal Analysis, Vol 15, Iss , Pp 100140- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2667-3126 |
| DOI: |
10.1016/j.ctta.2024.100140 |
| Popis: |
The potential usage of activated carbon from plantain peel (Musa paradisiaca) (TPPC) and unactivated carbon from plantain peel (UPPC) for the removal of Hexachlorocyclohexanes (HCHs) from water systems was investigated. The TPPC and UPPC were characterized using Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). Adsorption experiments were conducted as a function of adsorbent weight (2 – 10 g), temperature (30 -50 °C), and solution pH (2 - 9) under an adsorbent packed column. The Optimum removal efficiency of 98.23 % was achieved in the column studies under the following conditions: pH = 5, the dosage of adsorbent = 5 g/100 mL, temperature = 30 °C. The batch adsorption process was employed to evaluate the kinetics, equilibrium, and thermodynamics of the adsorption processes. The equilibrium study showed that Langmuir among other isotherm models applied performed better in fitting the data. Additionally, the kinetic data was best described by the pseudo-second-order model (R2 > 0.97), indicating a chemisorption mechanism. Furthermore, the thermodynamic calculations of the adsorption process suggest that HCH adsorption was exothermic (ΔH = -110.87) and spontaneous (-ΔG). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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