Preparation and study of the optical properties for polyaniline-Al2O3 nanocomposite

Resan, Saddam Alwan; Essa, Abbas Fadhel

doi:10.1016/j.matpr.2021.03.182

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…Moreover, more attention has been focused on the perspective of copper oxide in various aspects such as antibacterial agents [12], catalysis [13], food packaging [14], sensors [15] and medicine [16]. Recently, there has been a growing awareness of the development of aluminium oxide nanoparticles (Al 2 O 3 NPs) which have a high specific surface area with extraordinary optical, catalytic, thermodynamic stability properties for progressive engineering and industrial applications [17][18][19]. Few studies reported the use of CuO/Al 2 O 3 in sensing applications such as Khan et al [20] studied the electrochemical oxidation of ammonia over copper oxide impregnated γ-Al 2 O 3 nanocatalysts.…”

Section: Introductionmentioning

confidence: 99%

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

2021

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Electrically conductive polymeric nanocomposites with nanoparticles are adaptable types of nanomaterials that are prospective for various applications. The extraordinary features of copper oxide (CuO) and aluminium oxide (Al2O3) nanostructures, encourages extensive studies to prospect these metal oxide nanocomposites as potential electroactive materials in sensing and biosensing applications. This study suggested a new CuO/Al2O3 nanocomposite-based polymeric coated wire membrane sensor for estimating naltrexone hydrochloride (NTX) in commercial formulations. Naltrexone hydrochloride and sodium tetraphenylborate (Na-TPB) were incorporated in the presence of polymeric polyvinyl chloride (PVC) and solvent mediator o-nitrophenyloctyl ether (o-NPOE) to form naltrexone tetraphenylborate (NTX-TPB) as an electroactive material. The modified sensor using NTX-TPB-CuO/Al2O3 nanocomposite displayed high selectivity and sensitivity for the discrimination and quantification of NTX with a linearity range 1.0 × 10−9–1.0 × 10−2 mol L−1 and a regression equation EmV = (58.25 ± 0.3) log [NTX] + 754.25. Contrarily, the unmodified coated wire sensor of NTX-TPB exhibited a Nernstian response at 1.0 × 10−5–1.0 × 10−2 mol L−1 and a regression equation EmV = (52.1 ± 0.2) log [NTX] + 406.6. The suggested modified potentiometric system was validated with respect to various criteria using the methodology recommended guidelines.

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Section: Introductionmentioning

confidence: 99%

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

2021

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“…According to the literature, PANI constitutes a characteristic conjugated polymer possessing prolonged π-conjugated e − systems and E g values ranging from 1.8 to 4 eV, depending on its structure, the utilized dopant, as well as the dopant's concentration. Additionally, PANI constitutes an effective e − donor and h + transporter under visible-light irradiation [39,[51][52][53][54][55][56][57][58].…”

Section: Diffuse Reflectance Spectroscopy (Drs) Analysismentioning

confidence: 99%

Biocompatible PANI-Encapsulated Chemically Modified Nano-TiO2 Particles for Visible-Light Photocatalytic Applications

Papadopoulou-Fermeli,

Lagopati,

Gatou

et al. 2024

Nanomaterials

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Polyaniline (PANI) constitutes a very propitious conductive polymer utilized in several biomedical, as well as environmental applications, including tissue engineering, catalysis, and photocatalysis, due to its unique properties. In this study, nano-PANI/N-TiO2 and nano-PANI/Ag-TiO2 photocatalytic composites were fabricated via aniline’s oxidative polymerization, while the Ag-and N-chemically modified TiO2 nanopowders were synthesized through the sol–gel approach. All produced materials were fully characterized. Through micro-Raman and FT-IR analysis, the co-existence of PANI and chemically modified TiO2 particles was confirmed, while via XRD analysis the composites’ average crystallite size was determined as ≈20 nm. The semi-crystal structure of polyaniline exhibits higher photocatalytic efficiency compared to that of other less crystalline forms. The spherical-shaped developed materials are innovative, stable (zeta potential in the range from −26 to −37 mV), and cost-effective, characterized by enhanced photocatalytic efficiency under visible light (energy band gaps ≈ 2 eV), and synthesized with relatively simple methods, with the possibility of recycling and reusing them in potential future applications in industry, in wastewater treatment as well as in biomedicine. Thus, the PANI-encapsulated Ag and N chemically modified TiO2 nanocomposites exhibit high degradation efficiency towards Rhodamine B dye upon visible-light irradiation, presenting simultaneously high biocompatibility in different normal cell lines.

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“…[30] In addition, PANI doped with Al 2 O 3 has been previously evaluated as an absorbent for heavy metals, [31,32] as well as for its antimicrobial properties [33] and optical properties. [34] This paper also examines the incorporation of Al 2 O 3 and TiO 2 nanoparticles into PANI during synthesis. Two methods for determining the amount of nanoparticles within the polymeric nanocomposite are compared.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Doped Polyaniline as Potential Sensing Materials and/or Absorbents For Styrene and Phthalates in Aqueous Solutions

Tourne,

Jones,

Atwater

et al. 2023

Macro Chemistry & Physics

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The removal and detection of toxic analytes, including monomers and plasticizers, is important for both health and the environment. Potential absorbents and/or sensing materials are successfully made from polyaniline (PANI) and PANI doped with 10 wt.% of aluminum oxide (PANI‐Al2O3) and titanium dioxide (PANI‐TiO2). The amount of metal oxide incorporated into the surface layers of the polymer and the total amount incorporated are confirmed by energy dispersive X‐rays (EDX) and microwave plasma‐ atomic emission spectroscopy (MP‐AES), respectively. All three materials are evaluated as potential sensing materials and/or absorbents for styrene, monobutyl phthalate (MBP), and dibutyl phthalate (DBP) at 100 ppm in aqueous solutions. It is found that incorporating TiO2 into PANI improved both the sensitivity and selectivity to styrene, making PANI‐TiO2 a good absorbent and potential sensing material for styrene. Additionally, incorporating Al2O3 into PANI improved the sorption to MBP, but reduced the selectivity. As a proof‐of‐concept, the responses of the polymeric nanocomposites are combined and analyzed using principal component analysis (PCA) as such an algorithm. The output reveals good separation of the responses to each analyte, thereby demonstrating how sensing materials with poorer selectivity can be used together to overcome limitations in selectivity.

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Preparation and study of the optical properties for polyaniline-Al2O3 nanocomposite

Cited by 6 publications

References 6 publications

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

Biocompatible PANI-Encapsulated Chemically Modified Nano-TiO2 Particles for Visible-Light Photocatalytic Applications

Evaluation of Doped Polyaniline as Potential Sensing Materials and/or Absorbents For Styrene and Phthalates in Aqueous Solutions

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