In situ reduction of chloroauric acid (HAuCl4) for generation of catalytic Au nanoparticle embedded triazine based covalent organic polymer networks

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dc.authorid000-0002-4581-4900
dc.authorid0000-0002-9316-8317
dc.authorid0000-0002-4591-2332
dc.contributor.authorDursun, Sami.
dc.contributor.authorYavuz, Emine.
dc.contributor.authorÇetinkaya, Zeynep.
dc.date.accessioned2020-03-26T20:14:38Z
dc.date.available2020-03-26T20:14:38Z
dc.date.issued2019
dc.departmentSelçuk Üniversitesi, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.description.abstractCovalent-organic polymer networks (COPNs) have been used as catalyst supports due to their stable and favorable structure. Herein, a simple synthetic route was applied to generate Au@COPN-1 hybrids via in situ reduction of gold ions with no additional reducing agent. Synthesized novel COPN-1 was mixed with different concentrations of HAuCl4 which resulted in Au@COPN-1 with varying sizes of Au nanoparticles in a controlled manner. The microstructural and morphological features of COPN-1 and Au@COPN-1 were characterized in detail using FT-IR, C-NMR, elemental analysis, UV-Vis, XRD, TEM, BET, and TGA. It is noteworthy that the red-shifted LSPR peaks of Au nanoparticles produced with increasing concentrations of HAuCl4 indicated an increase in the particle size of the Au nanoparticles as justified by TEM images. The optimum catalytic activity of Au@COPN-1 was obtained when 4.6 x 10(-3) mM HAuCl4 was used, which led to the complete reduction of 4-nitrophenol within 16 minutes with excellent recyclability for more than 5 catalytic cycles, giving yields over 94%. Moreover, the non-aggregation of nanoparticles in the reused catalyst further confirmed the stability of the prepared catalysts. Consequently, these results indicated that in situ synthesis of AuNPs inside the COPN-1 matrix produces a promising catalyst platform for the reduction of aromatic nitro compounds, for example, for the degradation of one of the most common persistent organic pollutants 4-nitrophenol, as shown here. In addition, the Au@COPN-1 hybrid system showed good biocompatibility at appropriate doses confirmed by a dynamic real-time cell analysis system which can be used in various medical applications, such as drug delivery, in the future.en_US
dc.description.sponsorshipAcademic Staff Training Program (OYP)Ministry of National Education - Turkey [2016-OYP-033]en_US
dc.description.sponsorshipThis study was carried out as a Master thesis by Sami Dursun at the Graduate School of Natural and Applied Science at Selcuk University, Konya, Turkey. Academic Staff Training Program (OYP) (project number 2016-OYP-033), which authors gratefully acknowledge. The authors thank Dr Esra Hayriye ulker for providing L929 cells as a kind gift.en_US
dc.identifier.citationDursun, S., Yavuz, E., Çetinkaya, Z. (2019). In Situ Reduction of Chloroauric Acid (Haucl 4) for Generation of Catalytic Au Nanoparticle Embedded Triazine Based Covalent Organic Polymer Networks. RSC Advances, 9(66), 38538-38546.
dc.identifier.doi10.1039/c9ra08822aen_US
dc.identifier.endpage38546en_US
dc.identifier.issn2046-2069en_US
dc.identifier.issue66en_US
dc.identifier.pmid35540227en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage38538en_US
dc.identifier.urihttps://dx.doi.org/10.1039/c9ra08822a
dc.identifier.urihttps://hdl.handle.net/20.500.12395/37912
dc.identifier.volume9en_US
dc.identifier.wosWOS:000509401700024en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorYavuz, Emine.
dc.language.isoenen_US
dc.publisherROYAL SOC CHEMISTRYen_US
dc.relation.ispartofRSC ADVANCESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectchloroauric acid
dc.subjectHAuCl4
dc.subjectcatalytic Au
dc.titleIn situ reduction of chloroauric acid (HAuCl4) for generation of catalytic Au nanoparticle embedded triazine based covalent organic polymer networksen_US
dc.typeArticleen_US

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