The fabrication of a chemical sensor with PANI-TiO<sub>2</sub> nanocomposites

Karim, Mohammad Rezaul; Alam, M. M.; Aijaz, Muhammad Omer; Asiri, Abdullah M.; Al‐Mubaddel, Fahad S.; Rahman, Mohammed M.

doi:10.1039/c9ra09315j

Cited by 27 publications

(6 citation statements)

References 42 publications

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“…The NCZ NCs can be easily seen in the cavity of PANI (Figure 6). The NCZ NCs can be seen on the polymer matrix of PANI in the TEM image of NCZ/PANI NCs [45] . Similar information about average particle size was obtained from TEM images i. e., 10–20 nm for NCZ NCs and 20–30 nm for NCZ/PANI NCs as observed from SEM and XRD techniques.…”

Section: Resultssupporting

confidence: 72%

“…The NCZ NCs can be seen on the polymer matrix of PANI in the TEM image of NCZ/PANI NCs. [45] Similar information about average particle size was obtained from TEM images i. e., 10-20 nm for NCZ NCs and 20-30 nm for NCZ/PANI NCs as observed from The corrosion rate (CR) and corrosion inhibition efficiency (CIE) was estimated by the weight loss technique. [46][47][48] Table 2 shows the weight loss (mg), standard deviation (S d ), CR, and CIE shown by NCZ/PANI NCs.…”

Section: Chemistryselectmentioning

confidence: 79%

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Polyaniline Plastic Nanocomposite as Multi‐Functional Nanomaterial

Yadav

Kumar

2022

ChemistrySelect

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Mixed metal nanocomposites encapsulated with conducting polymer plastic may show synergistic effects in their properties resulting in unique applications in optoelectronic, conducting material, recording tapes, data‐storing quantum dots, catalysis, sensors, adsorption, purification, seperation, biosensors, antibacterial, and anti‐corrosive agents. Encapsulation of Ni/Cu/ZnO (NCZ) nanocomposites (NCs) with polyaniline (PANI) plastic by in situ method results in unique properties. A modified sol‐gel method was used for synthesizing mixed metal NCs. The PANI was synthesized by the chemical‐oxidative method. TEM, FTIR, FESEM, UV‐visible, and XRD techniques were used for characterizing NCZ NCs, PANI, and NCZ/PANI NCs. The theoretical (computational) study was carried out to support the experimental results. The adsorption, magnetic, photocatalytic, photoluminescence, electrical, antibacterial, and anticorrosive properties of NCs were explored. The NCZ/PANI NCs were proved paramagnetic. The optical band gap of NCs observed from UV‐visible and computational techniques were comparable i. e., ∼2.32 eV. The NCs show 86.5 % corrosion inhibition efficiency for mild steel in acidic medium. The adsorption power of the Silica gel/NCs column was greater than the pure silica gel column. The NCs degrade methyl‐red dye in UV light. The antibacterial activity was investigated against E. coli (‐) and bacillus (+). No significant antibacterial activity was observed. The synthesized NCZ/PANI NCs were proved to be very good nanomaterials for adsorption, separation, magnetic, photocatalytic, electrical, and corrosion inhibitor.

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Section: Resultssupporting

confidence: 72%

Section: Chemistryselectmentioning

confidence: 79%

Polyaniline Plastic Nanocomposite as Multi‐Functional Nanomaterial

Yadav

Kumar

2022

ChemistrySelect

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“…is is due to their chemical stability, conductivity, lightweight nature, and mechanical exibility [12]. Among the conducting polymers, polyaniline is broadly used for its excellent properties, such as excellent conductance, easy preparation, low fabrication cost, environmental friendliness and stability, and its electrochemical redox characteristics [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Multilayered Electroactive Polyaniline-ZnO Modified GCE for Electrochemical Detection of Paracetamol

Chufamo

Kelita

Berhanu³

et al. 2022

Advances in Materials Science and Engineering

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Paracetamol (PC) is widely used for defensive and medicinal purposes for human beings. But their deposition in the human body will persuade thoughtful health risks. So, the enhancement of sensitive and selective techniques for the easy and fast detection of PC is extremely fundamental. Multilayered electroactive polyaniline-ZnO nanocomposite (NC) film was developed for PC detection which was based on the oxidation of PC with polyaniline doped zinc oxide on a glassy carbon electrode (PANI/ZnO/GCE). PANI and PANI/ZnO NCs were fabricated by both electrochemical and in-situ oxidative chemical polymerization methods. The morphology of PANI/ZnO shows that the polymer was distributed on the surface of ZnO, and the XRD pattern confirms that the average size calculated was 7.48 nm for PANI/ZnO. From UV-Vis measurements, the PANI/ZnO composite shows a redshift relative to PANI and ZnO. Moreover, FT-IR spectra show that chemical bonds and stretching are assigned to different peaks. Using differential pulse voltammetry, the fabricated PANI/ZnO/GCE electrochemical sensor displays good analytical performance for PC with detection limits of 4 × 10−8 M and a sensitivity of 2.571 mA/1 × 10−8 M with a linear concentration of PC within the range of 1.0 to 7.0 × 10−8 M.

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“…Conductive polymers are attractive materials due to their various functions, from insulators to conductors, while retaining traditional polymers’ mechanical properties and processing qualities. − Polyaniline (PANI) is one of the most promising conductive polymers due to its unique physical and electrochemical properties. − Current research has revealed its functionalities by fabricating diverse morphologies, composites, colloids, and hydrogels. − Different PANI nanostructures have been used in numerous fields, extending from adsorbents, − chemical sensors, − biosensors, , electrocatalysis, , and supercapacitors to electrode materials for batteries. − …”

Section: Introductionmentioning

confidence: 99%

Highly Conductive and Dispersible Polyaniline Microtubes Controlled by Methyl Orange

Cao

Cai

et al. 2022

ACS Appl. Polym. Mater.

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Polyaniline (PANI) is one of the best-known conductive polymers that has been widely studied due to its ease of synthesis, low cost, and tunable conductivity. However, it is still challenging to synthesize dispersible and highly electroconductive PANIs with high aspect ratios. This research provides a facile onestep synthetic method assisted by an organic dye, methyl orange (MO), to obtain high aspect ratios (the ratio could reach 20) in PANI structures. The presence of MO contributes to microtubes' morphology, enhancing their electrical conductivity from 0.5 to 4.6 S cm −1 , which is 8 times that of spherical PANI nanoparticles. The electrical properties and processability of the PANI microtubes were well explored simultaneously. The PANI microtubes can reach high conductive levels and maintain stable electrical performance for over 30 days. In addition, the PANI microtubes could be dispersed in a wide range of organic solvents and water. These functionalities enable them to act as conductive fillers to be effectively combined with silver flakes in thermoplastic polyurethane resins for fabricating conductive composites. Adding the PANI microtubes combined with silver flakes as conductive fillers in polyurethane, the resistivity of the composites can decrease to 1/1900 of those filled only with the same mass ratio of silver flakes, showing their great potential in reinforcing resins.

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The fabrication of a chemical sensor with PANI-TiO₂ nanocomposites

Abstract: The conjugated conducting polyaniline was fabricated onto PANI-TiO2 nanoparticles prepared by microwave-accelerated reaction system for the development an efficient and sensitive electrochemical sensor to protect the environment and healthcare fields in a broad scale.

Cited by 27 publications

References 42 publications

Polyaniline Plastic Nanocomposite as Multi‐Functional Nanomaterial

Polyaniline Plastic Nanocomposite as Multi‐Functional Nanomaterial

Multilayered Electroactive Polyaniline-ZnO Modified GCE for Electrochemical Detection of Paracetamol

Highly Conductive and Dispersible Polyaniline Microtubes Controlled by Methyl Orange

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The fabrication of a chemical sensor with PANI-TiO2 nanocomposites

Abstract: The conjugated conducting polyaniline was fabricated onto PANI-TiO2 nanoparticles prepared by microwave-accelerated reaction system for the development an efficient and sensitive electrochemical sensor to protect the environment and healthcare fields in a broad scale.

Cited by 27 publications

References 42 publications

Polyaniline Plastic Nanocomposite as Multi‐Functional Nanomaterial

Polyaniline Plastic Nanocomposite as Multi‐Functional Nanomaterial

Multilayered Electroactive Polyaniline-ZnO Modified GCE for Electrochemical Detection of Paracetamol

Highly Conductive and Dispersible Polyaniline Microtubes Controlled by Methyl Orange

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The fabrication of a chemical sensor with PANI-TiO₂ nanocomposites