Functional finishing of cotton fabrics using zinc oxide–soluble starch nanocomposites

Vigneshwaran, N.; Kumar, Surinder; Kathe, A A; Varadarajan, P. V.; Prasad, Virendra

doi:10.1088/0957-4484/17/20/008

Cited by 454 publications

(229 citation statements)

References 35 publications

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“…And other peaks are corresponding to 766 cm -1 (C-C stretching), 860 cm -1 (C-C, CH 2 deformation), 1,428 cm -1 (CH 2 bending), 1,646 cm -1 (O-H bending of water absorbance) and 2,930 cm -1 (CH 2 deformation and C-O-O stretching), respectively. In case of starch-capped ZnO QDs, the appearance/disappearance (** symbol indicated in the graph) and shifting (* symbol indicated in the graph) of peaks confirm the bond formation between ZnO QDs and soluble starch molecule, where covalent bond was not formed between ZnO QDs and starch molecule which was confirmed from the previous report (Vigneshwaran et al 2006). …”

Section: Structural Analysissupporting

confidence: 80%

“…In this case, so far a few reports were documented in relation to ZnO/starch NPs. This emission nature might be attributed due to the smaller particles that adhered together to form elongated particles (Vigneshwaran et al 2006;Chandramouleeswaran et al 2007;Prasad et al 2010). Further, color emissions of these QDs were confirmed through fluorescence images under UV light source using fluorescence microscope (Fig.…”

Section: Optical Analysismentioning

confidence: 74%

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Structural and optical characterization of pure and starch-capped ZnO quantum dots and their photocatalytic activity

Vidhya¹,

Saravanan

Bhoopathi³

et al. 2014

Appl Nanosci

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Among the different types of metal oxides, zinc oxide (ZnO) is a most commonly used metal oxide in a broad variety of applications. In the present investigation, a modified green synthesis route was used to synthesize pure and starch-capped ZnO (ZnO/starch) quantum dots (QDs) and studied their structural and optical characteristics. In this study, hexagonal crystal structure was observed in both pure and ZnO/starch QDs using X-ray diffraction technique. A spherical-shaped surface morphology was found with the size of 5-10 nm using transmission electron microscope technique. The interaction between ZnO QDs and starch molecules was proved via Fourier infra-red spectrometer technique. On the other hand, their fluorescence behaviors were investigated using photoluminescence technique, in that the ZnO/starch QDs showed an enhanced emission behavior when compared to the pure ZnO QDs. Further, the solar photocatalytic activity of both the ZnO QDs was examined with the dye Rhodamine B (RhB) at the end of 30, 60, 90, and 120 min. In this, ZnO/ starch QDs show a good and more decomposition of RhB than pure ZnO QDs. Collectively, in the present study, green synthesis route produced an efficient QDs (pure and ZnO/starch) and it will be very useful for many other QDs. The ZnO/starch QDs are suitable for decomposing the RhB and other toxic organic dyes.

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Section: Structural Analysissupporting

confidence: 80%

Section: Optical Analysismentioning

confidence: 74%

Structural and optical characterization of pure and starch-capped ZnO quantum dots and their photocatalytic activity

Vidhya¹,

Saravanan

Bhoopathi³

et al. 2014

Appl Nanosci

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show abstract

“…Potential fields of application include, for instance, textile [1,2], packaging [3] or medical devices to prevent nosocomial infections [4]. The role of antimicrobial packaging materials is to extend the lag period and reduce the growth rate of micro-organisms to expand for instance the shelf life of packaged food.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of nanocomposites: poly(amide) 6 and low density poly(ethylene) filled with zinc oxide

Droval¹,

Aranberri

Bilbao³

et al. 2008

E-Polymers

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Abstract:The antimicrobial activity against E. coli, St. aureus and A. niger of zinc oxide when blended with polymers has been measured by an applied dynamic method. Two polymers: poly(amide) 6 (PA6) and low density poly(ethylene) (LDPE) have been used as matrix. ZnO nanoparticles content as low as 1% w/w in the polymers showed great antibacterial activity but no antifungal activity. The results of bacterial slaying capability of these nanocomposites was also found to be better when zinc oxide was dispersed in PA6, where the efficiency is similar to pure ZnO particles. The composites have been investigated by means of scanning electron microscope (SEM) and differential scanning calorimeter (DSC).

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“…The measured BET surface area of ZnO nanoparticles has been found to be 42.32 m 2 /g. It shows that nanoparticles prepared by this method are small, spherical, more crystalline, of higher purity, and also have large specific surface areas [41,42], which could enhance the catalytic activity [43,44]. …”

Section: Morphology Studymentioning

confidence: 99%

A novel zinc(II) macrocycle-based synthesis of pure ZnO nanoparticles

Pushpanathan¹,

Kumar²

2014

J Nanostruct Chem

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Dinuclear zinc(II) complex of the 18-membered tetraiminediphenol macrocycle has been synthesized by Schiff base condensation of 2,6-diformyl-4-methylphenol and 1,2-diaminobenzene in the presence of zinc(II) template. The obtained complex has been characterized by the spectroscopic techniques and mass spectrometry. The complex exhibits high thermal stability and forms ZnO nanoparticles on thermal decomposition. The diffraction peaks in the X-Ray diffraction spectra indicated that the complexes are crystalline. The surface morphology has been investigated by scanning electron microscopy. Energy dispersive X-ray analysis shows the chemical purity and stoichiometry of the ZnO nanoparticles. The BET surface area of ZnO nanoparticles has been found. The transmission electron microscopy result shows spherical shaped ZnO nanoparticles with the size of 20 nm. Quantum confinement effects are clearly revealed in UV-Vis spectroscopy technique.

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Functional finishing of cotton fabrics using zinc oxide–soluble starch nanocomposites

Cited by 454 publications

References 35 publications

Structural and optical characterization of pure and starch-capped ZnO quantum dots and their photocatalytic activity

Structural and optical characterization of pure and starch-capped ZnO quantum dots and their photocatalytic activity

Antimicrobial activity of nanocomposites: poly(amide) 6 and low density poly(ethylene) filled with zinc oxide

A novel zinc(II) macrocycle-based synthesis of pure ZnO nanoparticles

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