Issue 106, 2015
From the journal:

RSC Advances

Removal of a reactive dye and hexavalent chromium by a reusable bacteria attached electrospun nanofibrous web†

Nalan Oya San Keskin,*abc   Aslı Celebioglu,cd   Omer Faruk Sarioglu,cd   Alper Devrim Ozkan,cd   Tamer Uyar*cd  and  Turgay Tekinay*be  

* Corresponding authors

a Polatlı Science and Literature Faculty, Biology Department, Gazi University, Ankara 06900, Turkey
E-mail: oyasan@gazi.edu.tr
Fax: +90-312-484-6271
Tel: +90-312-484-6270

b Life Sciences Application and Research Center, Gazi University, Ankara 06830, Turkey

c UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey
E-mail: tamer@unam.bilkent.edu.tr
Fax: +90-312-266-4365
Tel: +90-312-290-3571

d Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey

e Faculty of Medicine, Department of Medical Biology and Genetics, Gazi University, Ankara 06560, Turkey
E-mail: ttekinay@gazi.edu.tr

Abstract

A contaminant resistant Lysinibacillus sp. NOSK was isolated from a soil sample and its Reactive Black 5 (RB5) and Cr(VI) removal efficiencies were investigated as a function of changes in the initial pH values, temperature, static/shaking conditions, reactive dye and Cr(VI) concentrations. In this study, an electrospun polysulfone nanofibrous web (PSU-NFW) was found to be effective in attachment of bacterial cells. Bacteria attached PSU-NFWs (bacteria/PSU-NFW) have shown highly efficient removal of RB5, as 99.7 ± 0.9% and 35.8 ± 0.4% for the pristine PSU-NFW. Moreover, the highest Cr(VI) removal efficiencies measured were 98.2 ± 0.6% for bacteria attached PSU-NFW and 32.6 ± 0.6% for the pristine PSU-NFW. Simultaneous removal of RB5 and Cr(VI) were also investigated. Reusability test results indicate that, bacteria/PSU-NFW can be reused for at least 7 cycles with 28.1 ± 0.6% and 66.7 ± 0.8% removal efficiencies for RB5 and Cr(VI), respectively.

Graphical abstract: Removal of a reactive dye and hexavalent chromium by a reusable bacteria attached electrospun nanofibrous web

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Article information

DOI
https://doi.org/10.1039/C5RA15601G
Article type
Paper
Submitted
04 Aug 2015
Accepted
08 Oct 2015
First published
08 Oct 2015

RSC Adv., 2015,5, 86867-86874

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Removal of a reactive dye and hexavalent chromium by a reusable bacteria attached electrospun nanofibrous web

N. O. San Keskin, A. Celebioglu, O. F. Sarioglu, A. D. Ozkan, T. Uyar and T. Tekinay, RSC Adv., 2015, 5, 86867 DOI: 10.1039/C5RA15601G

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