New hybrid organic polymer montmorillonite/chitosan/polyphenylenediamine composites for nonlinear optical studies

Ramya, E.; Rajashree, C.; Nayak, Pratik; Rao, D. Narayana

doi:10.1016/j.clay.2017.10.001

Cited by 21 publications

(10 citation statements)

References 57 publications

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“…Dai et al reported that BiFeO 3 -Graphene nano composites have improved photocatalytic activity of methyl orange and the peak was obtained at 429 nm [30]. Also Ramya et al suggested that Montmorillonite clay peak has a maximum at 466 nm [31]. In the present studies, BFO nanoparticles and MMT shows acceptable peak range of 400 -450 nm for BFO nano particle and 420 -430 for MMT clay materials.…”

Section: Pl Spectrasupporting

confidence: 56%

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BiFeO3-Montmorillonite intercalated nano composites - synthesis and its characterization

Karthikeyan¹,

Thirumoorthi²

2018

Nanosystems: Phys. Chem. Math.

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Bismuth Ferrite (BFO) intercalated Montmorillonite clay (MMT) nano composites have been synthesized using ascorbic acid and its optical behavior has been investigated. The characterization of BFO-MMT nano composites has been done using FT-IR, UV-visible, X-ray diffraction (XRD), Scanning Electron Microscope (SEM). Also, electron hole recombination has been investigated by photoluminescence (PL). From the analytical techniques, it has been found BFO entered into the layered host which was proved by elongation of basal plane and therefore agglomerated BFO was formed. The particle size can be calculated by Scherrer formula, is in good agreement with SEM. The strong absorption band in UV-Visible region attributed BFO nano composites can be used for photo catalytic degradation of Rhodamine-B (Rh-B). From the electrochemical studies, BFO-MMT clay nano composites showed a good specific capacitance at a scan rate of 10 mVs −1 .

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Section: Pl Spectrasupporting

confidence: 56%

“…Based on this, they found the incorporation of Mn 2+ in the BFO lattice [36]. From the literature [31] it has been found for nanocomposites of the type montmorillonite/chitosan/para pheylenediamine, the peak of MMT shifted towards higher wavelength region and red shift occurs.…”

Section: Pl Spectramentioning

confidence: 86%

BiFeO3-Montmorillonite intercalated nano composites - synthesis and its characterization

Karthikeyan¹,

Thirumoorthi²

2018

Nanosystems: Phys. Chem. Math.

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“…Montmorillonite (MMT) is a 2D layered phyllosilicate clay built of two tetrahedral and one octahedral sheet, which has been widely used in the preparation of nanocomposites due to its low cost, abundance in nature, zero toxicity, high specific surface area, swelling abilities and ion-exchange properties [ 8 , 9 ]. Various MMT composites with polyaniline [ 8 , 10 ], polypyrrole [ 11 , 12 ], poly (3,4-ethylenediaoxythiophene) [ 13 ] and polyphenylenediamine [ 14 , 15 ] were prepared by chemical [ 8 , 12 ] or electrochemical [ 13 ] polymerization and have been used as electrode material for oxygen reduction [ 16 ], anticorrosion coatings [ 6 , 11 ], sensors [ 17 , 18 ], conducting fillers [ 19 ], adsorbents [ 20 ] and supercapacitors [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…Nascimento et al prepared poly( p -phenylenediamine)/MMT composites via oxidative polymerization and confirmed the successful formation of the polymer within the MMT gallery by extensive structural characterizations [ 14 ]. Ramya et al studied the nonlinear optical properties of chitosan/ o - or p -phenylenediamine/MMT composites by the Z-scan technique with picosecond and femtosecond laser pulses and revealed properties that make this material suitable for optical limiters [ 15 ]. Khelifa et al examined the electrochemical properties of poly ( o -phenylenediamie)/clay composites by cyclic voltammetry [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Impedance Spectroscopy of Poly(p-phenylenediamine)/Montmorillonite Composites

et al. 2021

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Poly(p-phenylenediamine)/montmorillonite (PPDA/MMT) composites were prepared by the oxidative polymerization of monomers intercalated within the MMT gallery, using ammonium peroxydisulfate as an oxidant. The intercalation process was evidenced by X-ray powder diffraction. The FT-IR and Raman spectroscopies revealed that, depending on the initial ratio between monomers and MMT in the polymerization mixture, the polymer or mainly oligomers are created during polymerization. The DC conductivity of composites was found to be higher than the conductivity of pristine polymer, reaching the highest value of 10−6 S cm−1 for the optimal MMT amount used during polymerization. Impedance spectroscopy was performed over wide frequency and temperature ranges to study the charge transport mechanism. The data analyzed in the framework of conductivity formalism suggest different conduction mechanisms for high and low temperature regions.

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“…Nanoclays are the most popular inorganic components in the preparation of bionanocomposites due to their low cost, high availability, high cation exchange capacity, strong adsorption ability and high surface area 13–16 . Montmorillonite 12,17–26 , laponite 27–29 , hectorite 30,31 , and saponite 32,33 have been extensively studied in the literature. The introduction of chitosan in their structures leads to an improvement in their natural adsorption capabilities, forming biodegradable, economical and environmentally friendly materials 34 .…”

Section: Introductionmentioning

confidence: 99%

Bionanocomposites based on chitosan intercalation in designed swelling high-charged micas

Alba

Cota

Osuna

et al. 2019

Sci Rep

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Bionanocomposites based on layered inorganic components, as clays, and polymers of biological origin, as chitosan, have a major impact in medical and environmental fields, being economical and environmentally friendly materials. Na-M n micas ( n = 2 and 4) with controlled surface charge, high cation exchange capacity and swelling behaviour, are attractive inorganic composite components that exhibit improved adsorption properties compared to other inorganic solids which makes them potentially useful for bionanocomposites. The goal of this research was to explore the potential use of those synthetic brittle micas to form eco-friendly bionanocomposites with chitosan biopolymer. Hence, chitosan-mica bionanocomposites were prepared by ion-exchange reaction between chitosan solution and synthetic high charge mica. X-ray diffraction, Fourier transform infrared spectroscopy, thermal analysis, MAS-NMR spectroscopy and zeta-potential have been employed for bionanocomposites characterization. The results showed that the adsorption of chitosan is effective, although a chitosan portion remains in the outer surface being hydrogen-bonded to the tetrahedral sheet of the silicate.

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New hybrid organic polymer montmorillonite/chitosan/polyphenylenediamine composites for nonlinear optical studies

Cited by 21 publications

References 57 publications

BiFeO3-Montmorillonite intercalated nano composites - synthesis and its characterization

BiFeO3-Montmorillonite intercalated nano composites - synthesis and its characterization

Synthesis and Impedance Spectroscopy of Poly(p-phenylenediamine)/Montmorillonite Composites

Bionanocomposites based on chitosan intercalation in designed swelling high-charged micas

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