Effects of Chloride Concentration on the Water Disinfection Performance of Silver Containing Nanocellulose-based Composites

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLehtonen, Janikaen_US
dc.contributor.authorHassinen, Jukkaen_US
dc.contributor.authorHonkanen, Riinaen_US
dc.contributor.authorKumar, Avula Anilen_US
dc.contributor.authorViskari, Helien_US
dc.contributor.authorKettunen, Anuen_US
dc.contributor.authorPahimanolis, Nikolaosen_US
dc.contributor.authorPradeep, Thalappilen_US
dc.contributor.authorRojas, Orlando J.en_US
dc.contributor.authorIkkala, Ollien_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorBio-based Colloids and Materialsen
dc.contributor.groupauthorBiohybrid Materialsen
dc.contributor.groupauthorMolecular Materialsen
dc.contributor.organizationIndustrial Water Ltd.en_US
dc.contributor.organizationIndian Institute of Technology Madrasen_US
dc.contributor.organizationBetulium Ltd.en_US
dc.date.accessioned2023-01-25T07:35:15Z
dc.date.available2023-01-25T07:35:15Z
dc.date.issued2019-12-01en_US
dc.description.abstractThe availability of microbially-safe drinking water is a challenge in many developing regions. Due to the well-known antibacterial effect of silver ions, materials used for their controlled release have been widely studied for point-of-use water disinfection. However, even if it is in principle known that chloride anions can suppress the antibacterial efficiency of silver, the majority of previous studies, surprisingly, have not focused on chloride concentrations relevant for freshwaters and thus for practical applications. Here, we prepared low-cost nanocellulose-aluminium oxyhydroxide nanocomposites functionalized with silver nanoparticles. Field samples obtained from Chennai, India were used as a guideline for choosing relevant chloride concentrations for the antibacterial studies, i.e., 10, 90, and 290 ppm. The antibacterial performance of the material against Escherichia coli and Bacillus subtilis was demonstrated and the influence of chloride concentration on the antibacterial effect was studied with E. coli. A 1 h contact time led to bacterial reductions of 5.6 log10, 2.9 log10, and 2.2 log10, respectively. This indicates that an increase of chloride concentration leads to a substantial reduction of antibacterial efficiency, even within chloride concentrations found in freshwaters. This work enables further insights for designing freshwater purification systems that utilize silver-releasing materials.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationLehtonen, J, Hassinen, J, Honkanen, R, Kumar, A A, Viskari, H, Kettunen, A, Pahimanolis, N, Pradeep, T, Rojas, O J & Ikkala, O 2019, ' Effects of Chloride Concentration on the Water Disinfection Performance of Silver Containing Nanocellulose-based Composites ', Scientific Reports, vol. 9, no. 1, 19505 . https://doi.org/10.1038/s41598-019-56009-6en
dc.identifier.doi10.1038/s41598-019-56009-6en_US
dc.identifier.issn2045-2322
dc.identifier.otherPURE UUID: b3f5ce64-c61a-46b4-a927-39a39e4c9c83en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b3f5ce64-c61a-46b4-a927-39a39e4c9c83en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85076883907&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/40205363/CHEM_Lehtonen_et_al_Effects_of_Chloride_2019_SciRep.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/119168
dc.identifier.urnURN:NBN:fi:aalto-202301251522
dc.language.isoenen
dc.publisherNature Publishing Group
dc.relation.ispartofseriesScientific Reportsen
dc.relation.ispartofseriesVolume 9, issue 1en
dc.rightsopenAccessen
dc.titleEffects of Chloride Concentration on the Water Disinfection Performance of Silver Containing Nanocellulose-based Compositesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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