Facile synthesis of novel hierarchical TiO2@Poly(o-phenylenediamine) core–shell structures with enhanced photocatalytic performance under solar light

Muthirulan, P.; Devi, C. K. N.; Sundaram, M. Meenakshi

doi:10.1016/j.jece.2013.06.025

Cited by 41 publications

(13 citation statements)

References 30 publications

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“…Our methodology has unique features compared with other reported techniques . In this methodology, there is no requirement to utilize either ultrasonication or an aqueous alkaline medium during the polymerization process.…”

Section: Resultsmentioning

confidence: 99%

“…Consequently, the fabrication of PoPD based nanocomposites is acquiring attention since it can offer outstanding properties generated from the electrically conductive PoPD film and metal/semiconducting nanoparticles . Recently, new work has researched the rhodamine B dye degradation process by TiO 2 and PoPD core–shell nanocomposites as a photocatalyst . In that work, effective TiO 2 and PoPD core–shell nanocomposite photocatalysts were produced using ammonium persulfate as an initiator.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Al-Hussaini

Eltabie

Hassan

2018

Polymer International

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The current study establishes the unprecedented involvement in the evolution and production of novel core-shell nanocomposites composed of nanosized titanium dioxide and aniline-o-phenylenediamine copolymer. TiO 2 @copoly(aniline and o-phenylenediamine) (TiO 2 @PANI-o-PDA) core-shell nanocomposites were chemically synthesized in a molar ratio of 5:1 of the particular monomers and several weights of nano-TiO 2 via oxidative copolymerization. The construction of the TiO 2 @PANI-o-PDA core-shell nanocomposites was ascertained from Fourier transform IR spectroscopy, UV-visible spectroscopy and XRD. A reasonable thermal behavior for the original copolymer and the TiO 2 @PANI-o-PDA core-shell nanocomposites was investigated. The bare PANI-o-PDA copolymer was thermally less stable than the TiO 2 @PANI-o-PDA nanocomposites. The core-shell feature of the nanocomposites was found to have core and shell sizes of 17 nm and 19-26 nm, respectively. In addition, it was found that the addition of a high ratio of TiO 2 nanoparticles increases the electrical conductivity and consequently lowers the electrical resistivity of the TiO 2 @PANI-o-PDA core-shell nanocomposites. The hybrid photocatalysts exhibit a dramatic photocatalytic efficacy of methylene blue degradation under solar light irradiation. A plausible interpretation of the photocatalytic degradation results of methylene blue is also demonstrated. Our setup introduces a facile, inexpensive, unique and efficient technique for developing new core-shell nanomaterials with various required functionalities and colloidal stabilities.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Al-Hussaini

Eltabie

Hassan

2018

Polymer International

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“…25,26 Poly(o-phenylenediamine) (POPD), which is a polyaniline derivative containing quinoraline units, with strong electro activity and high environmental stability, is receiving considerable attention, since it can exhibit unique electroactive properties when combined with metal/semiconducting nanoparticles. 27, 28 Recently, Sundaram et al 29 have reported TiO 2 @PoPD core− shell nanocomposites for the degradation of Rhodamine B dye. It was reported that the combination of the synergetic and complementary behaviors of PoPD with TiO 2 nanoparticles efficiently degraded Rhodamine B dye.…”

Section: ■ Introductionmentioning

confidence: 99%

Sonochemical Facile Synthesis of Self-Assembled Poly(o-phenylenediamine)/Cobalt Ferrite Nanohybrid with Enhanced Photocatalytic Activity

Riaz

Ashraf

Raza

et al. 2016

Ind. Eng. Chem. Res.

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Although several photocatalytic materials have been discovered, developing an efficient visible light photocatalyst is still a great challenge in the photocatalysis field, because the existing inorganic semiconductors are only active in the ultraviolet (UV) range. With the aim to enhance the photocatalytic activity of CoFe 2 O 4 in the visible region, the present preliminary study reports the synthesis of nanocomposites of CoFe 2 O 4 /poly(o-phenylenediamine) nanohybrid. The structure of the synthesized nanohybrid was confirmed by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and transmission electron microscopy (TEM) analyses. Photocatalytic activity of the nanohybrid was investigated using Malachite Green (MG) as a model dye. Results revealed that enhanced photocatalytic activity was achieved in the visible range, because of the generation of holes in the narrow band gap of CoFe 2 O 4 via sensitization with poly(o-phenylenediamine). A plausible pathway and mechanism for the photocatalytic degradation of Malachite Green (MG) is also discussed.

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“…In recent times, some studies have been published on the combination of conductive polymers and TiO 2 to get better performance of UV light and sunlight activities (Muthirulan et al 2013;Hou et al 2011;Xu et al 2012;Zhang et al 2008;Denga et al 2012;Zhang et al 2006;Li et al 2008;Wang et al 2008;Kandiel et al 2009;Wang et al 2009). Moreover, many conjugated polymers also are efficient electron donors and good hole transporters upon visible light excitation.…”

Section: Introductionmentioning

confidence: 99%

Development of efficiency improved polymer-modified TiO2 for the photocatalytic degradation of an organic dye from wastewater environment

Sangareswari¹,

Sundaram²

2015

Appl Water Sci

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In this study, the photocatalytic activity of polypyrrole-TiO 2 nanocomposite was studied experimentally for the degradation of methylene blue (MB) dye under simulating solar light irradiation. To improve the photocatalytic activity of TiO 2 under sunlight irradiation, conducting polymers such as polypyrrole (PPy) and its derivatives are generally used as photosensitizers. The PPy-TiO 2 nanocomposite was prepared by the chemical oxidative polymerization method. The prepared nanocomposite showed better photocatalytic activity than bare TiO 2 under sunlight irradiation for the degradation of MB dye. The prepared nanocomposite was subjected to characterization techniques such as SEM-EDAX, FT-IR, UV-DRS, XRD, TGA and PL spectral analysis. Different influencing operating parameters like initial concentration of dye, irradiation time, pH and amount of PPy-TiO 2 nanocomposite used have also been studied. The optical density of the dye degradation was measured by UV-Visible spectrophotometer. The repeatability of photocatalytic activity was also tested. A plausible mechanism was proposed and discussed on the basis of experimental results.

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Facile synthesis of novel hierarchical TiO2@Poly(o-phenylenediamine) core–shell structures with enhanced photocatalytic performance under solar light

Cited by 41 publications

References 30 publications

Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Sonochemical Facile Synthesis of Self-Assembled Poly(o-phenylenediamine)/Cobalt Ferrite Nanohybrid with Enhanced Photocatalytic Activity

Development of efficiency improved polymer-modified TiO2 for the photocatalytic degradation of an organic dye from wastewater environment

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