Adsorptive Removal of p-Nitrophenol from Aqueous Solution by Bone Char: Equilibrium and Kinetic Studies
Yazarlar (4)
Obiajulu Egbuchunam Theresa
Grace Obi
Ebhodaghe Okieimen Felix
Doç. Dr. Senem YETGİN Kastamonu Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(Diğer hakemli uluslarası dergilerde yayınlanan tam makale)
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| Dergi Adı | Journal of Chemistry and Chemical Engineering | ||
| Dergi ISSN | 1934-7375 | ||
| Makale Dili | İngilizce | Basım Tarihi | 07-2016 |
| Cilt / Sayı / Sayfa | 10 / 7 / 325–335 | DOI | 10.17265/1934-7375/2016.07.003 |
| Makale Linki | https://www.davidpublisher.com/index.php/Home/Article/index?id=29956.html | ||
| UAK Araştırma Alanları |
Ayırma İşlemleri
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| Özet |
| Para-nitrophenol adsorbed on bone char synthesized from cow bones has been studied. The Langmuir Freundlich and Sips models were applied to the equilibrium data to describe the adsorption process. The Langmuir model best described the adsorption process with R2= 0.919; and maximum adsorption capacity, qmax of 365.76 mg/g. Batch kinetic studies conformed to pseudo-second-order indicating that several mechanisms may be involved in the process and gave a value of 2.5× 104 g/mg/min for the rate constant for the sorption of p-nitrophenol on bone char. The values of thermodynamic parameters, free energy≈-22.0 kJ/mol, enthalpy-20.2 kJ/mol and entropy 5.34 J/K mol for the adsorption of p-nitrophenol on bone char showed that the adsorption was spontaneous and exothermic. |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
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| Google Scholar | 9 |