Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/8809
Title: | A high-performance acid-resistant polyaniline based ultrafiltration membrane: Application in the production of aluminium sulfate powder from alumina sol | Authors: | Güngörmüş, Elif Alsoy Altınkaya, Sacide |
Keywords: | Acid-resistant ultrafiltration membrane Polyaniline Antifouling Alumina sol filtration Aluminium salt production |
Publisher: | Elsevier | Abstract: | In this work, we report a new class of acid-resistant ultrafiltration membrane fabricated from polyaniline (PANI) based on its self-acid doping ability. The doped membrane was prepared by filtering the H2SO4 solution (pH = 0.55) through the PANI membrane at 2 bar. To critically assess the acid resistance, the resulting doped membrane was stored in H2SO4 solution (pH = 0.55) for one month. The chemical structure and separation performance of the membrane was not adversely affected by acid exposure. The membrane was also tested in realistic conditions through filtration of alumina sol synthesized in an extremely acidic H2SO4 solution. The results have shown that 99% recovery of the aluminium sulfate particles is possible with the doped PANI membrane as a result of the hydrophilic, relatively smooth, and antifouling surface created by acid doping. The membrane filtration did not change the size and size distribution of the particles in the sol. After filtration, concentrated particles were converted into powder form in 24 h at room temperature without using a dryer. The method proposed in this study is easy and robust and can be used to develop acid-resistant UF membranes not only for concentrating the alumina sol but also for recovering valuable compounds from acid-containing feeds. | URI: | https://doi.org/10.1016/j.cej.2020.124393 https://hdl.handle.net/11147/8809 |
ISSN: | 1385-8947 1873-3212 |
Appears in Collections: | Chemical Engineering / Kimya Mühendisliği Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Files in This Item:
File | Size | Format | |
---|---|---|---|
1-s2.0-S1385894720303843-main.pdf | 5.73 MB | Adobe PDF | View/Open |
CORE Recommender
SCOPUSTM
Citations
13
checked on Nov 29, 2024
WEB OF SCIENCETM
Citations
13
checked on Nov 23, 2024
Page view(s)
182
checked on Dec 2, 2024
Download(s)
164
checked on Dec 2, 2024
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.