Starch/polyaniline nanocomposite for enhanced removal of reactive dyes from synthetic effluent

Janaki, V.; Vijayaraghavan, K.; Oh, Byung‐Taek; Lee, Kui-Jae; Muthuchelian, K.; Ramasamy, A. K.; Kamala‐Kannan, Seralathan

doi:10.1016/j.carbpol.2012.07.012

Cited by 178 publications

(83 citation statements)

References 36 publications

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“…The peak at 2θ = 25.52°was corresponding to the periodicity parallel and perpendicular to polyaniline chains. [49] The incorporation of gelatin to the chitosan in CSGel composite was evident by XRD data. In this composite, the intensity of the chitosan diffraction peak (2θ = 20.02°) was decreased such that the peak gets merged with the broad amorphous peak.…”

Section: Characterizationmentioning

confidence: 96%

See 1 more Smart Citation

Fabrication and characterization of chitosan–gelatin/nanohydroxyapatite–polyaniline composite with potential application in tissue engineering scaffolds

Azhar

Olad

Salehi

2014

Designed Monomers and Polymers

119

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In this study to further improve surface characteristics of tissue engineering scaffolds, a novel composite based on chitosan-gelatin/nanohydroxyapatite-polyaniline (CS-Gel/nHA-PANI) was prepared by blending the synthesized nHA and PANI with chitosan and gelatin solution followed by lyophilization technique. The prepared composite scaffold was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy techniques. The effects of nHA and PANI on the physicochemical properties of the scaffold including swelling ratio, density, biodegradation, biomineralization, and mechanical behavior were investigated. The composite scaffold was highly porous with the mean pore size of 200 μm. Compared with CS-Gel and CS-Gel/nHA scaffolds, the CS-Gel/nHA-PANI scaffold exhibited lower degradation rate and higher biomineralization and mechanical strength. Preliminary evaluation of the biocompatibility and cytotoxicity of the CS-Gel/nHA-PANI composite scaffold was performed by MTT assay using bovine leukemia virus fetal lamb kidney cell line (BLV-FLK) and then cell attachment studies were assessed using dental pulp stem cells. Results indicated no toxicity, and cells attached and proliferated on the pore surfaces of the scaffold. These findings suggested that the developed scaffold possess the prerequisites and can be used as a scaffold for hard tissues regeneration.

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Section: Characterizationmentioning

confidence: 96%

“…In comparison with previous studies, [31,49,55,63] it can be concluded that the CS-Gel/nHA-PANI scaffold-containing PANI as a conducting polymer showed absolutely non-toxic effects in vitro, and also its properties can be controlled by synergetic effect of nHA and PANI.…”

Section: Cell Viability Studiesmentioning

confidence: 99%

Fabrication and characterization of chitosan–gelatin/nanohydroxyapatite–polyaniline composite with potential application in tissue engineering scaffolds

Azhar

Olad

Salehi

2014

Designed Monomers and Polymers

119

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“…The results from XRD and FT-IR analyses confirm that the St-PANI/Fe3O4 composite was successfully synthesized with constituents of polyaniline, Fe3O4 and starch. 16 The thermal stability of the St-PANI/Fe3O4 composite materials was investigated through thermogravimetric analysis and the results are presented in Fig-3. According to TGA analysis, the weight loss of composite material underwent several periods.…”

Section: Resultsmentioning

confidence: 99%

“…14,15 Starch/polyaniline and chitosan/polyaniline composites were prepared for enhanced removal of textile dyes from the synthetic effluent. 16 However, the small size adsorbents are not easy to separate from the aqueous solution after usage by filtration or centrifugation. Recently, separation of small size adsorbent by magnetic technique has been paid attention.…”

Section: Introductionmentioning

confidence: 99%

"REUSABLE STARCH-GRAFT-POLYANILINE/Fe3O4 COMPOSITE FOR REMOVAL OF TEXTILE DYES"

2017

RJC

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Magnetic composite materials have been considered as one of the promising candidates for wastewater treatment. In this paper, the starch-g-polyaniline/Fe3O4 (St-PANI/Fe3O4) composite particles were prepared successfully via chemical oxidation polymerization of aniline and starch with ammonium peroxydisulfate as a catalyst. The characterization of prepared composite materials was investigated by Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Vibrating Sample Magnetometer (VSM), and Thermo Gravimetric Analysis (TGA) techniques. The composite materials were used for removal of textile dyes from aqueous solutions. The effect of various factors to adsorption capacities such as initial dye concentrations (50-200 mg/L), adsorbent amount, pH of the medium (3, 5, 7 and 9), and contact times were also investigated. The results showed that these composite materials had the high feasibility removal of anionic dyes, but low efficiency for cationic dyes in an aqueous solution. The absorption yields were strongly affected by the dye concentrations, adsorbent amount, contact time and pH. In addition, the composite can be collected easily from an aqueous solution and recycled after usage with the help of an external magnet due to the magnetic property.

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“…Polypyrrole/St (PPy/St) composite was prepared by the method adopted for the preparation of PAn/St composite as described above, with 4.4 g of ferric chloride (dissolved in minimum amount of methanol) as the oxidizing agent [18]. All above biocomposites were synthesized using the 1:3 mass ratios for doing this study.…”

Section: Methodsmentioning

confidence: 99%