In situ synthesis of gold nanoparticles using fique natural fibers as template

Castellanos, Laura; Blanco‐Tirado, Cristian; Hinestroza, Juan P.

doi:10.1007/s10570-012-9763-8

Cited by 31 publications

(17 citation statements)

References 29 publications

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“…In previous reports from our group we have described the origin and structure of fique fibers (Castellanos et al 2012;Chacón-Patiño et al 2013). Fique fibers are extracted from Furcraea spp.…”

Section: Resultsmentioning

confidence: 99%

“…Unlike soft cellulosic fibers, these macrofibers are structurally sound, water resistant, and have a heterogeneous surface that facilitates NP size control, dispersion, and stabilization. We believe biocomposites of hard natural fibers and catalytically active nanomaterials (such as ZnO whose photocatalytic oxidation properties have been applied to contaminant degradation, particularly for water treatment processes) could be considered as the ultimate green materials because they exhibit remarkable environmental advantages such as biocompatibility, biodegradability, functionality and the ability to be reused, as we have previously demonstrated with other materials of this kind (Castellanos et al 2012;Chacón-Patiño et al 2013;Ovalle et al 2014). …”

Section: Introductionmentioning

confidence: 81%

“…Cellulose in fique fibers amounts up to 63 % in weight, followed by lignin with 14.5 % in weight and the remaining is composed of hemicellulose and other minor components (Gañán and Mondragon 2002). Our group previously reported on the use of these fibers as solid supports to successfully deposit and stabilize in its surface, a wide range of nanostructures such as noble metals and transition metal oxide nanoparticles (NPs; Castellanos et al 2012;Chacón-Patiño et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Controlled synthesis of ZnO particles on the surface of natural cellulosic fibers: effect of concentration, heating and sonication

et al. 2015

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We report on the use of fique natural fibers as solid matrices for the deposition of zinc oxide (ZnO). Fique fibers, native to Colombia, are composed of cellulose (63-70 %) and have a heterogeneous surface morphology with high oxygen density that facilitates metal oxide nanoparticle growth and stabilization. Fique fiber-ZnO biocomposites were synthesized by a co-precipitation method using ZnSO 4 as precursor, NaOH for hydroxide formation and thermal/ ultrasound energy to promote Zn(OH) 2 /Zn(OH) 4 2-decomposition and ZnO formation. The biocomposite was characterized using X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy with attenuated total reflectance, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. The synthesis of ZnO nanoparticles has been widely reported on inorganic substrates and soft natural fibers; however studies on how experimental parameters affect ZnO features on heterogeneous phase reactions are scarce, as well as the use of hard complex cellulosic fibers as solid supports for its growth. We observed that [OH -]/[Zn 2? ] ratios, heating or sonication time wield a strong influence on the amount, shape, size and distribution of ZnO crystals on the fique fibers; hence confirming the potential of hard natural fibers as surface active materials for novel biocomposites synthesis. We believe these materials, where the hard fiber robustness and the transition metal oxide catalytic properties are synergistically combined, could be promising functional alternatives that will favor a widespread nanoparticle usage for environmental applications such as wastewater treatment processes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

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Controlled synthesis of ZnO particles on the surface of natural cellulosic fibers: effect of concentration, heating and sonication

et al. 2015

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“…The surface of the fibers were cationized according to a method described by Hauser et al and Hinestroza et al with a minor modification (Castellanos et al 2012;Hauser and Tabba 2001). Glycidyltrimethylammonium chloride (GTAC) was used to render quaternary ammonium groups on the fiber surfaces under strong alkaline conditions.…”

Section: Fiber Cationizationmentioning

confidence: 99%

Assembly of metal nanoparticles on regenerated fibers from wood sawdust and de-inked pulp: flexible substrates for surface enhanced Raman scattering (SERS) applications

Kong

Reza

et al. 2015

Cellulose

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We report on simple and low-cost active SERS substrates made using regenerated fibers from wood products. Glycidyltrimethylammonium chloride (GTAC) was used to graft ammonium groups on the fibers' surfaces under strong alkaline conditions. After GTAC treatment, citrate-stabilized nanoparticles were assembled via electrostatic interaction. X-ray diffraction, Scanning electron microscopy images and optical photographs indicated that the surfaces of the fibers were conformally coated with metal nanoparticles. We also observed that after being cationized, the fibers experienced significant swelling and shrinking under dry and wet conditions. Rhodamine 6G was used as probe molecule to test the SERS performance of the substrates-concentrations as low as 10 -9 M were detected. Furthermore, the modified fibers were used to detect melamine, illustrating their potential as viable substrates for applications such as markers for the quality and shelf-life of food products and detection of toxins.

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“…According to S.A. Ovalle-Serrano et al [7], Colombia is the largest producer of Fique fibers in the world, having more than 30,000 tons per year. Fique belongs to the group of hard fibers, often referred to as cabuya (Furcrae gender), and it is extracted from the leaves of the fique plant, a group of xerophytic monocotylic plants [8]. According to Gañán and Mondragón [9], fique fibers are composed of cellulose (63.0%), hemicellulose (17.5 %), lignin (14.5 %), pectins and waxes (5.0 %), and the fiber length typically ranges between 80 and 100 cm.…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior of natural fiber textile reinforced mortar sheets

Luna¹,

Lizarazo-Marriaga²,

Luna³

et al. 2019

Sustainable Construction Materials and Technologies (SCMT)

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This paper summarizes preliminary results of an experimental research project aimed to develop natural fiber textile-reinforced mortars (NFTRM) to be used in the construction industry. Here, the bending behavior of mortar sheets reinforced using fique textiles was analyzed. In order to assess the influence of a textile grid on the bending behavior of mortar sheets, two different fique fabrics were used to cast square plates. Their mechanical bending behavior strength were also compared with mortar sheets reinforced using commercial fibers. Results showed that fique fabrics are a promising substitute for commercial fibers because they provide the material with an adequate flexural behavior, showing a remarkable increase in ductility and the capacity to store energy after cracking.

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In situ synthesis of gold nanoparticles using fique natural fibers as template

Cited by 31 publications

References 29 publications

Controlled synthesis of ZnO particles on the surface of natural cellulosic fibers: effect of concentration, heating and sonication

Controlled synthesis of ZnO particles on the surface of natural cellulosic fibers: effect of concentration, heating and sonication

Assembly of metal nanoparticles on regenerated fibers from wood sawdust and de-inked pulp: flexible substrates for surface enhanced Raman scattering (SERS) applications

Mechanical behavior of natural fiber textile reinforced mortar sheets

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