Free-Standing Bacterial Cellulose/Polypyrrole Composites for Eco-Friendly Remediation of Hexavalent Chromium Ions

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dc.contributor.authorStříž, Radimcs
dc.contributor.authorMinisy, Islamcs
dc.contributor.authorBober, Patrycjacs
dc.contributor.authorTaboubi, Oumaymacs
dc.contributor.authorSmilek, Jiřícs
dc.contributor.authorKovalčík, Adriánacs
dc.coverage.issue11cs
dc.coverage.volume6cs
dc.date.accessioned2024-07-22T14:46:06Z
dc.date.available2024-07-22T14:46:06Z
dc.date.issued2024-05-16cs
dc.description.abstractDrinking water quality requirements are getting stricter but water sources are limited. Therefore, effective ways to purify it must be developed. In order to remove toxic Cr(VI) from wastewater, efficient, nontoxic, sustainable, resilient biocomposites based on bacterial cellulose (BC) and polypyrrole (PPy) have been fabricated. The free-standing BC/PPy composites, allowing easy handling during and after water treatment, were successfully prepared by the oxidative polymerization of pyrrole on the BC surface. The variation in the physical state of BC sheets used for coating by PPy was done to study the rheological properties and Cr(VI) removal capacity. Characterization techniques like FTIR, SEM, BET, thermogravimetric analysis, and rheological analyses established the morphology and structural properties of the prepared biocomposites. The physical state of the bacterial cellulose used for the coating by PPy positively affected the mechanical and thermal stabilities of the resulting BC/PPy composites but had almost no effect on the removal capacity of hexavalent chromium. The free-standing BC/PPy composites reached a specific surface area of 61.96 m2 g–1 and a pore volume of 0.097 cm3 g–1, showing more than a threefold increase compared to neat BC sheets. The coating of BC by PPy markedly improved the maximum adsorption capacity of Cr(VI). The experimental Cr(VI) adsorption data fitted using Langmuir’s isotherm model indicated homogeneous monolayer adsorption of Cr(VI) ions onto the BC/PPy surface. The Cr(VI) maximum adsorption capacity of BC/PPy composites was determined to be 294.1 mg g–1. Furthermore, the BC/PPy composites were proved to be excellent catalysts for the photocatalytic reduction of toxic Cr(VI) into nontoxic Cr(III) ions. These results suggest that the free-standing BC/PPy composites could be used as alternative materials for eco-friendly remediation of hexavalent chromium ions from wastewater.en
dc.formattextcs
dc.format.extent6383- 6392cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationACS APPLIED POLYMER MATERIALS. 2024, vol. 6, issue 11, p. 6383- 6392.en
dc.identifier.doi10.1021/acsapm.4c00579cs
dc.identifier.issn2637-6105cs
dc.identifier.orcid0000-0002-6553-1764cs
dc.identifier.orcid0000-0003-4833-7369cs
dc.identifier.other188619cs
dc.identifier.researcheridI-7386-2015cs
dc.identifier.scopus55844628200cs
dc.identifier.urihttps://hdl.handle.net/11012/249343
dc.language.isoencs
dc.publisherAmerican Chemical Societycs
dc.relation.ispartofACS APPLIED POLYMER MATERIALScs
dc.relation.urihttps://pubs.acs.org/doi/10.1021/acsapm.4c00579cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2637-6105/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbacterial celluloseen
dc.subjectpolypyrroleen
dc.subjectcompositesen
dc.subjecthexavalent chromium ionsen
dc.subjectreductionen
dc.titleFree-Standing Bacterial Cellulose/Polypyrrole Composites for Eco-Friendly Remediation of Hexavalent Chromium Ionsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-188619en
sync.item.dbtypeVAVen
sync.item.insts2024.07.22 16:46:05en
sync.item.modts2024.07.22 16:13:31en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie potravin a biotechnologiícs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav fyzikální a spotřební chemiecs
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