Examination of cellulose textile fibres in historical objects by micro-Raman spectroscopy

Kavkler, Katja; Demšar, Andrej

doi:10.1016/j.saa.2010.12.006

Cited by 87 publications

(45 citation statements)

References 18 publications

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“…7 The wettability of a raw cotton, b 30-min plasma-treated cotton, c raw viscose cotton and d 30-min plasma-treated viscose stretching at 2904 cm -1 (Fig. 9b); this also did not reveal changes between raw viscose (spectrum I) and MW-treated viscose (spectrum II) (Kavkler and Demšar 2011).…”

Section: Resultsmentioning

confidence: 85%

Microwave-assisted TiO2: anatase formation on cotton and viscose fabric surfaces

et al. 2016

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The method of TiO 2 -anatase film preparation on cotton and viscose fabric surfaces using the sol-gel process and microwave treatment is presented. Microwave treatment was used to change the amorphous TiO 2 form to anatase directly on the fabrics. The influence of microwave treatment conditions on the obtainable polymorphic form of TiO 2 was examined. Fabrics were pretreated with low-temperature air plasma (30 min). The root mean square height in the selected area increased from 44 to 166 nm (cotton) and from 9 to 112 nm (viscose). Infrared analysis showed the new band at 1748 and 1732 cm -1 corresponding to C=O stretching for plasma-treated cotton and viscose textiles, respectively. The plasma pretreatment also improved the wetting properties by TiO 2 sol and increased the surface free energy of fabrics. TiO 2 film thickness was 180 nm (12 %wg. Ti) and 140 nm (3 %wg. Ti) for cotton and viscose, respectively. TiO 2 -modified cotton reduced the nicotine concentration three times more and TiO 2 -modified viscose was two times higher under sunlight compared to raw fabrics. No changes in strength were observed for TiO 2 -modified cotton, while the strength of TiO 2 -modified viscose decreased about 45 %. No effect of UV irradiation on cotton and a slight reduction of the strength of raw viscose (7 %) and TiO 2 -modified viscose (16 %) were observed. The Ti contents after washing decreased from 12 to 11 % (cotton) and from 3 to 2.6 % (viscose). The presented method allows obtaining TiO 2 film-anatase on the cotton and viscose fabrics, but its total effectiveness is better for cotton fabrics.

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Section: Resultsmentioning

confidence: 85%

Microwave-assisted TiO2: anatase formation on cotton and viscose fabric surfaces

et al. 2016

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“…Additionally, three peaks located at ~898 cm -1 , ~1262 cm -1 and ~1462 cm -1 are attributed to the cellulose II crystal lattice. 29,30 A much broader and significant peak also appeared at ~1374 cm -1 because of the δ(CH2) mode. 29 Raman spectra of CF900 and CF900/CNTs are presented in Figure 3b.…”

Section: Structural Feature Of Fibres Characterized By Raman Spectrosmentioning

confidence: 99%

“…29,30 A much broader and significant peak also appeared at ~1374 cm -1 because of the δ(CH2) mode. 29 Raman spectra of CF900 and CF900/CNTs are presented in Figure 3b. These Raman spectra were fitted using a 2-peak Lorentzian curve to determine their peak positions and the intensity ratio (ID/IG) of the G and D bands was obtained.…”

Section: Structural Feature Of Fibres Characterized By Raman Spectrosmentioning

confidence: 99%

Growth of Carbon Nanotubes on Electrospun Cellulose Fibers for High Performance Supercapacitors

Deng

Kim

et al. 2017

J. Electrochem. Soc.

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We report the production of cellulose-derived hybrid carbon nanofiber (CNF)/ carbon nanotubes (CNTs) electrodes for the fabrication of high-performance supercapacitors. The CNTs were grown via a floating catalyst chemical vapor deposition (CVD) method on the top surface of electrospun cellulose-derived CNFs. The morphology of these hybrid CNF/CNTs fibrous structures was investigated using scanning electron and transmission electron microscopy. The development of these carbon structures was characterized using Raman spectroscopy. The electrochemical performance of the devices including cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), electrochemical impedance spectroscopy measurements (EIS), and electrochemically stability was carried out. These hybrid CNF/CNTs electrodes had a high value of specific capacitance of 149 F g −1 at a current density 0.5 A g −1 , an increase of 15% compared with pristine CNFs. The BET specific surface area increases from 712 m 2 g −1 to 1211 m 2 g −1 from pristine CNFs to hybrid CNF/CNTs, leading to a specific capacitance (per unit area) of ∼170 mF cm −2 . These supercapacitors also retain 90% of the original capacitance over 1000 cycles, showing an excellent stability. This method of supercapacitor electrode production is suggested as a basis to convert a sustainable cellulosic material into a useful energy storage material.

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“…A characteristic band around 1086 cm -1 was attributed to the symmetric and asymmetric stretching of the COC bond in glycosidic linkages (Schenzel and Fischer 2001). A band at 2900 cm -1 was assigned to O-H stretching vibrations (Kavkler and Demšar 2011). For cellulose/Ag nanocomposites, the peaks corresponded to COC and weakened O-H bonds.…”

Section: Chemical Structure Analysismentioning

confidence: 99%

Preparation and Characterization of Cellulose-Silver Nanocomposites by in situ Reduction with Alkalis as Activation Reagent

Zuo

Qian

et al. 2016

BioResources

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A simple, environmentally friendly, and efficient synthesis method for cellulose/silver (Ag) nanocomposites was developed by microwave heating an alkaline aqueous solution of cellulose fiber and silver nitrate (AgNO3), which resulted in good utilization of silver ions and a product with high silver content. The effect of the alkaline compounds and reducing agents on the silver content and utilization rate of silver ions was investigated using atom absorption spectroscopy (AAS). The morphology, size, thermal stability, and surface components of cellulose/Ag nanocomposites were investigated using scanning electron microscopy (SEM), thermogravimetric analysis (TG), differential scanning calorimetry (DSC), and Raman spectroscopy. The alkaline compound and reducing agent influenced the size and shape of the silver nanoparticles. Reduced silver ions had the greatest influence on the surface components of cellulose; however, nano-silver particles exhibited no obvious influence on cellulose's thermal stability. Furthermore, cellulose/Ag nanocomposites exhibited excellent antibacterial activity against Escherichia coli and Staphylococcus aureus.

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Examination of cellulose textile fibres in historical objects by micro-Raman spectroscopy

Cited by 87 publications

References 18 publications

Microwave-assisted TiO2: anatase formation on cotton and viscose fabric surfaces

Microwave-assisted TiO2: anatase formation on cotton and viscose fabric surfaces

Growth of Carbon Nanotubes on Electrospun Cellulose Fibers for High Performance Supercapacitors

Preparation and Characterization of Cellulose-Silver Nanocomposites by in situ Reduction with Alkalis as Activation Reagent

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