Investigation of individual and competitive adsorption of Cu II Cd II and Pb II on montmorillonite in terms of surface complexation and kinetic properties of Cu II adsorption
Yazarlar (4)
Prof. Dr. Fehime Jülide HIZAL YÜCESOY Yalova Üniversitesi, Türkiye
Prof. Dr. Pelin BARAN Yalova Üniversitesi, Türkiye
Doç. Dr. Şeyda KORKMAZ Yalova Üniversitesi, Türkiye
Reşat Apak Istanbul Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Desalination and Water Treatment (Q2) | ||
| Dergi ISSN | 1944-3994 Dergi Bilgileri (2016) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2016 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-10-2016 |
| Cilt / Sayı / Sayfa | 57 / 47 / 22441–22453 | DOI | 10.1080/19443994.2015.1131631 |
| Makale Linki | https://www.tandfonline.com/doi/full/10.1080/19443994.2015.1131631 | ||
| UAK Araştırma Alanları |
Analitik Kimya
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| Özet |
| In this study, individual and competitive Cu(II), Cd(II), and Pb(II) adsorptions on montmorillonite were searched by considering surface acidic functional groups of adsorbent. pH dependency of adsorptions and kinetic properties of Cu(II) adsorption was investigated. Cu(II) adsorption on montmorillonite fits pseudo-first-order reaction with the 0.008 k value. Individual and competitive heavy metal adsorptions were modeled using Langmuir, Freundlich, Temkin, and Dubinin–Astakhov isotherms. Adsorption capacities were calculated using equations of related linearized models. The adsorption capacities of individual metal adsorption, obtained from linearized models, are higher than the yielded capacities from competitive adsorption experiments. All adsorption energies calculated from linearized Dubinin–Astakhov model varied between 7 and 16 kJ/mol. The values of adsorption energies gained for metal adsorption in competition did not significantly differ from those of individual adsorption. Since montmorillonite surface behaves as a weak acid and has a strong buffer effect at pH values between 2 and 3, the pH dependency of adsorption was explained by taking into account the surface acidic properties of adsorbent and introduced preferred surface sites beyond adsorption with increasing pH. Cu(II), Cd(II), and Pb(II) existence on loaded montmorillonite was proved by the aid of SEM-EDX results. |
| Anahtar Kelimeler |
| Adsorption | Competitive Langmuir model | Heavy metal | Montmorillonite | Surface complexation |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Yöksis | 4 |
| Web of Science | 9 |
| Scopus | 12 |