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dc.contributor.author Mahlangu, Thembisile P
dc.contributor.author Das, R
dc.contributor.author Abia, LK
dc.contributor.author Onyango, M
dc.contributor.author Ray, Suprakas S
dc.contributor.author Maity, Arjun
dc.date.accessioned 2019-06-25T13:07:52Z
dc.date.available 2019-06-25T13:07:52Z
dc.date.issued 2019-01
dc.identifier.citation Mahlangu, T.P. (et.al). 2019. Thiol-modified magnetic polypyrrole nanocomposite: An effective adsorbent for the adsorption of silver ions from aqueous solution and subsequent water disinfection by silver-laden nanocomposite. Chemical Engineering Journal, vol 360, pp 423-434 en_US
dc.identifier.issn 1385-8947
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S1385894718324665
dc.identifier.uri https://doi.org/10.1016/j.cej.2018.11.231
dc.identifier.uri http://hdl.handle.net/10204/11007
dc.description Copyright: 2019 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, kindly consult the publisher's website. en_US
dc.description.abstract A magnetic nanocomposite (NC), Fe3O4@PPy-MAA, was synthesised via in situ oxidative polymerisation of the pyrrole monomer in a thioglycolic acid (mercaptoacetic acid) solution (as a dopant), in the presence of iron oxide (Fe3O4). The newly developed NC was characterised using ATR-FTIR, FE-SEM, HR-TEM, XRD, TGA, BET and VSM. The performance of the NC for silver ion (Ag+) adsorption was carried out through batch studies as a function of pH, adsorbent dose, temperature and initial Ag+ concentration. The maximum adsorption capacity of Ag+ was determined to be 806.4 mg/g at 25 °C using Langmuir adsorption isotherm at a solution pH of 5.6. The kinetics studies indicated that the Ag+ adsorption onto the Fe3O4@PPy-MAA NC surface was rapid and was well described by the pseudo-second-order kinetics equation. Also, the present study emphasised the reusability of Ag+-adsorbed waste material for the disinfection of microorganisms, which was demonstrated through the excellent antimicrobial activity of the NC against Escherichia coli in both synthetic and natural water samples. Therefore, the as prepared Fe3O4@PPy-MAA NC has an excellent ability to successfully remove Ag+ ions from aqueous solutions and subsequently, the Ag-loaded waste material could be used as a potential candidate disinfectant. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Worklist;22373
dc.subject Magnetic nanocomposite en_US
dc.subject Thioglycolic acid en_US
dc.subject Silver adsorption en_US
dc.subject Antimicrobial activity en_US
dc.subject E. coli en_US
dc.title Thiol-modified magnetic polypyrrole nanocomposite: An effective adsorbent for the adsorption of silver ions from aqueous solution and subsequent water disinfection by silver-laden nanocomposite en_US
dc.type Article en_US


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