Examination of the effects of activated carbon produced from coal using single-step h3po4/n2+h2o vapor activation on the adsorption of bovine serum albumin at different temperatures and ph values

This study examined protein adsorption equilibrium and kinetics on activated carbon (AC) that we obtained from coal by single-step H3PO4 activation under N2+H2O vapor at 800 °C. Surface properties, pore size distribution, and volumes of AC were determined using volumetric method with N2 adsorption at 77 K. Also, the textural properties were characterized by SEM-EDAX and XRD. The zeta potential values were measured to elucidate the electrostatic interactions between the protein and AC. The obtained AC discrete system was also used as an adsorbent for adsorbing bovine serum albumin (BSA) from aqueous solution. The effects of pH (4.0, 5.0, and 7.4) and temperatures (20, 30 and 40 °C) on the adsorption of BSA on AC were examined. The surface area, micropore, mesopore and total pore volumes of AC were found to be 1175 m2/g, 0.477 cm3/g, 0.061 cm3/g and 0.538 cm3/g, respectively. The optimum temperature for AC in BSA adsorption was found to be 40 °C and the pH was found to be 4.0. The highest BSA adsorption was found to be 159 mg/g and pH to be 4.0. The experimental equilibrium data were compared with the Langmuir and Freundlich models and found to be compatible with both models. The adsorption process is best described by the pseudo-first-order kinetic model. As a result, it was found out that AC obtained by single step H3PO4/N2+H2O vapor activation is an effective adsorbent for the adsorption of BSA from aqueous solution. © 2018, Turkish Chemical Society. All rights reserved.

Yazar Toprak A.
Bozgeyik K.
Yayın Türü Article
Tek Biçim Adres https://hdl.handle.net/20.500.12628/5804
Tek Biçim Adres 10.18596/jotcsa.341336
Konu Başlıkları Activated Carbon
Adsorption Isotherms
BSA
Coal
Kinetics
Koleksiyonlar Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD
Scopus İndeksli Yayınlar Koleksiyonu
Dergi Adı Journal of the Turkish Chemical Society, Section A: Chemistry
Dergi Cilt Bilgisi 5
Dergi Sayısı 1
Sayfalar 219 - 236
Yayın Yılı 2018
Eser Adı
[dc.title]
Examination of the effects of activated carbon produced from coal using single-step h3po4/n2+h2o vapor activation on the adsorption of bovine serum albumin at different temperatures and ph values
Yazar
[dc.contributor.author]
Toprak A.
Yazar
[dc.contributor.author]
Bozgeyik K.
Yayın Yılı
[dc.date.issued]
2018
Yayıncı
[dc.publisher]
Turkish Chemical Society
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
This study examined protein adsorption equilibrium and kinetics on activated carbon (AC) that we obtained from coal by single-step H3PO4 activation under N2+H2O vapor at 800 °C. Surface properties, pore size distribution, and volumes of AC were determined using volumetric method with N2 adsorption at 77 K. Also, the textural properties were characterized by SEM-EDAX and XRD. The zeta potential values were measured to elucidate the electrostatic interactions between the protein and AC. The obtained AC discrete system was also used as an adsorbent for adsorbing bovine serum albumin (BSA) from aqueous solution. The effects of pH (4.0, 5.0, and 7.4) and temperatures (20, 30 and 40 °C) on the adsorption of BSA on AC were examined. The surface area, micropore, mesopore and total pore volumes of AC were found to be 1175 m2/g, 0.477 cm3/g, 0.061 cm3/g and 0.538 cm3/g, respectively. The optimum temperature for AC in BSA adsorption was found to be 40 °C and the pH was found to be 4.0. The highest BSA adsorption was found to be 159 mg/g and pH to be 4.0. The experimental equilibrium data were compared with the Langmuir and Freundlich models and found to be compatible with both models. The adsorption process is best described by the pseudo-first-order kinetic model. As a result, it was found out that AC obtained by single step H3PO4/N2+H2O vapor activation is an effective adsorbent for the adsorption of BSA from aqueous solution. © 2018, Turkish Chemical Society. All rights reserved.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Activated Carbon
Konu Başlıkları
[dc.subject]
Adsorption Isotherms
Konu Başlıkları
[dc.subject]
BSA
Konu Başlıkları
[dc.subject]
Coal
Konu Başlıkları
[dc.subject]
Kinetics
Haklar
[dc.rights]
info:eu-repo/semantics/openAccess
ISSN
[dc.identifier.issn]
2149-0120
Sponsor YAYINCI
[dc.description.sponsorship]
Firat University Scientific Research Projects Management Unit: 2014-52349806-01
Sponsor YAYINCI
[dc.description.sponsorship]
This study was supported by Bülent Ecevit University Scientific Research Projects (project no: 2014-52349806-01). In addition, AT would like to thank Prof. Dr. Türkan Kopaç who provide them the opportunity to use her laboratory.
İlk Sayfa Sayısı
[dc.identifier.startpage]
219
Son Sayfa Sayısı
[dc.identifier.endpage]
236
Dergi Adı
[dc.relation.journal]
Journal of the Turkish Chemical Society, Section A: Chemistry
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
5
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.18596/jotcsa.341336
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/5804
Görüntülenme Sayısı ( Şehir )
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Görüntülenme
139
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
05 Haziran 2024 14:46
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adsorption obtained activation adsorbent examined protein equilibrium volumes properties aqueous solution models highest optimum temperature respectively mesopore micropore described experimental reserved rights Society Chemical Turkish effective H3PO4/N2+H2O single result kinetic pseudo-first-order process compatible Freundlich Langmuir
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