Silver@copper-polyaniline nanotubes: Synthesis, characterization and biosensor analytical study DOI Creative Commons

Mohamed J. Saadh,

H Al-Salman,

Hussein H. Hussein

et al.

Results in Chemistry, Journal Year: 2024, Volume and Issue: 9, P. 101614 - 101614

Published: June 27, 2024

We introduce silver-copper nanoparticles incorporated into polyaniline (PANI) nanotubes using a straightforward and efficient reduction process. In this regard, PANI with amine groups were fabricated through oxidation polymerization, followed by the attachment of Ag Cu precursors to enable synthesis Ag-Cu bimetallic (NPs) on pre-formed use hydrazine as reducing agent. The structural characterization synthesized NPs was investigated UV–Vis spectrophotometer (UV–Vis), Dark-field emission, (EDX), X-ray diffraction (XRD) field emission (FESEM), while electrochemical properties estimated (CV) differential pulse voltammetry (DPV). findings indicated that present in nanoscale range, well-dispersed, attached surface nanotubes. Electrochemical investigations revealed Ag-Cu@PANI nanotube electrode demonstrated electrooxidation dopamine hydroquinone without any interfering reactions, suggesting its potential an biosensor for simultaneous detection hydroquinone. proposed NPs-based connected concurrently identify hydroquinone, illustrating moo distinguish Confinements 0.46 µM 0.23 mM separately. Additionally, manufactured sensor identified wide direct run (5–25 µM), (0.5–2.5 mM). Alongside these promising comes about, actualized great solidness reproducibility, making it favorable stage biosensing

Language: Английский

Recent progress in carbon-based nanomaterials: critical review DOI
Olushola S. Ayanda, Augusta Oluchi Mmuoegbulam,

Onyemaechi Okezie

et al.

Journal of Nanoparticle Research, Journal Year: 2024, Volume and Issue: 26(5)

Published: May 1, 2024

Language: Английский

Citations

21
CdIn2Se4@chitosan heterojunction nanocomposite with ultrahigh photocatalytic activity under sunlight driven photodegradation of organic pollutants DOI

Zaid H. Mahmoud,

Yathrib Ajaj,

Ali M. Hussein

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 267, P. 131465 - 131465

Published: April 9, 2024

Language: Английский

Citations

19
Carbon-doped titanium dioxide (TiO2) as Li-ion battery electrode: Synthesis, characterization, and performance DOI Creative Commons

Zaid H. Mahmoud,

Yathrib Ajaj,

Ghadir Kamil Ghadir

et al.

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101422 - 101422

Published: Jan. 1, 2024

Development of lithium-ion batteries (Li-ion batteries) with high safety and solidity features has become a main challenge researchers when practical implementations for large-scale energy storage systems are prioritized. In this work, we introduce useful efficient strategy to manufacture long-standing high-rate carbon-doped TiO2 (C-TiO2) as an anode material. Titanium (TiO2) C-TiO2 were successfully prepared through hydrothermal method in order improve the electrical performance Li-battery. The structure thermal properties investigated by XRD, Raman TGA; whereas evaluated Glvanostatic discharge–charge measurements. density function theory (DFT) results revealed that doped carbon atoms causes considerable stress inside crystal lattice TiO2, avoid or minimize underwent relaxation then optimized. electrodes Li-battery was analyzed 100 cycles at different calcination temperatures 400 450 °C. also showed charge capacities 500 mAhg−1 mAg−1.

Language: Английский

Citations

18
Graphene Synthesis Techniques and Environmental Applications DOI Open Access
Qaisar Abbas, Pragati A. Shinde, Mohammad Ali Abdelkareem

et al.

Materials, Journal Year: 2022, Volume and Issue: 15(21), P. 7804 - 7804

Published: Nov. 4, 2022

Graphene is fundamentally a two-dimensional material with extraordinary optical, thermal, mechanical, and electrical characteristics. It has versatile surface chemistry large area. carbon nanomaterial, which comprises sp2 hybridized atoms placed in hexagonal lattice one-atom thickness, giving it structure. A number of synthesis techniques including epitaxial growth, liquid phase exfoliation, electrochemical mechanical chemical vapor deposition are used for the graphene. prepared using different can have benefits deficiencies depending on its application. This study provides summary graphene preparation critically assesses use graphene, derivates, composites environmental applications. These applications include as membrane detoxication purification water, active gas sensing, heavy metal ions detection, CO2 conversion. Furthermore, trend analysis both been performed by extracting analyzing Scopus data from past ten years. Finally, conclusions outlook provided to address residual challenges related

Language: Английский

Citations

63
A Review of High-Energy Density Lithium-Air Battery Technology: Investigating the Effect of Oxides and Nanocatalysts DOI Creative Commons

Asep Suryatna,

Indah Raya, Lakshmi Thangavelu

et al.

Journal of Chemistry, Journal Year: 2022, Volume and Issue: 2022, P. 1 - 32

Published: March 12, 2022

In vehicles that require a lot of electricity, such as electric vehicles, it is necessary to use high-energy batteries. Among the developed batteries, lithium-ion battery has shown better performance. This an energy density 10 equal and uses air oxygen active material cathode anode like made lithium metal. The used in these batteries must have special properties strong catalytic activity high conductivity, nanotechnology greatly helped improve materials lithium-air importance proper catalyst distribution relationship between oxide product indirect effect ORR on OER reaction not present fuel cell. maximum capacity theory using graphene under optimal electron conduction conditions experimental obtained for by optimizing structure geometry, examples structural engineering carbon fiber nanotubes fabrication with ability perform properly while providing space placement, are examined. article describes mechanism this battery, its components challenges application solve also discussed.

Language: Английский

Citations

47
RETRACTED ARTICLE: Comparison and evaluation of the performance of graphene-based biosensors DOI
Walid Kamal Abdelbasset, Saade Abdalkareem Jasim, Dmitry Olegovich Bokov

et al.

Carbon letters, Journal Year: 2022, Volume and Issue: 32(4), P. 927 - 951

Published: March 28, 2022

Language: Английский

Citations

44
Antimicrobial finishing of textiles using nanomaterials DOI Creative Commons

Uday Abdul‐Reda Hussein,

Zaid H. Mahmoud,

Karam Myaser Abd Alaziz

et al.

Brazilian Journal of Biology, Journal Year: 2023, Volume and Issue: 84

Published: May 15, 2023

Metals, such as copper and silver, can be extremely toxic to bacteria at exceptionally low concentrations. Because of this biocidal activity, metals have been widely used antimicrobial agents in a multitude applications related with agriculture, healthcare, the industry general. A large number microorganisms live human environment. if balance these creatures nature is disturbed, health individual society will threatened due production emission unpleasant odors reduction standards. The presence on textiles cause adverse effects discoloration or staining textiles, decomposition fibrous materials, reduced strength, eventually decay textiles. Most fibers polymers do not show resistance microbes by providing growth factors for right temperature humidity, nutrients from sweat fat skin glands, dead cells well materials stage finishing causes rapid spread various microbes. With advent nanotechnology, industries daily life underwent changes. In recent years, increasing research nanoparticles has led greater efficiency added value. These modified prevent odors, spread, transmission diseases. This article reviews basics principles tetiles, brief overview nanostructures properties.

Language: Английский

Citations

40
Investigation of effective parameters in the production of alumina gel through the sol-gel method DOI Creative Commons
Rusul Alabada, Mustafa M. Kadhim, Zainab Sabri Abbas

et al.

Case Studies in Chemical and Environmental Engineering, Journal Year: 2023, Volume and Issue: 8, P. 100405 - 100405

Published: June 19, 2023

Sol-gel chemistry is currently applied as one of the most widely used methods for synthesis nanoparticles. In this method hydrolysis and poly-condensation reactions occur when gel precursors are mixed with water catalyst. The further condensation sol particles into a three-dimensional network produces gel. There several parameters that effect on gelation time such molar ratio alkoxide to water, rate hydrolysis, type amount catalyst used, initial concentration temperature drying. Encapsulated solvent can be removed from by either evaporative drying or supercritical Where resulting solids known xerogel an aerogel, respectively. During process due surface tension liquid, capillary pressure gradient built in pore walls, which able collapse part volume. volume shrinkage may prevented strength, thermal stability, structure morphology aerogels keys success wider applications supports, acoustic insulators adsorbents. Among support materials, alumina became popular recently its highly chemical stability higher porosity. present study, nano-catalysts through aluminum tri-sec-butoxide (ASB) ethanol was investigated. carried out at 32 60 °C different concentrations precursor types amounts acid Rate formation, efficiency polymerization production were measured discussed. Results showed addition around 0.2 ml ASB malar 2 maximized produced minimized time. Then, synthesized optimum conditions dried two methods, atmospheric carbon dioxide results Scanning Electron Microscopy compared.

Language: Английский

Citations

39
A graphene oxide/polyaniline nanocomposite biosensor: synthesis, characterization, and electrochemical detection of bilirubin DOI Creative Commons

N. Ahmed,

Chou‐Yi Hsu,

Zaid H. Mahmoud

et al.

RSC Advances, Journal Year: 2023, Volume and Issue: 13(51), P. 36280 - 36292

Published: Jan. 1, 2023

The level of free bilirubin is a considerable index for the characterization jaundice-related diseases. Herein, biosensor was fabricated via immobilization oxidase (BOx) on graphene oxide (GO) and polyaniline (PANI) that were electrochemically co-precipitated indium tin (ITO) conductive glass. structural enzyme electrode characterized by FTIR, XRD, Raman spectroscopy, while spectral thermal properties investigated UV-vis thermogravimetric analysis (TGA). Owing to activity BOx/GO@PANI/ITO biosensor, it could detect with good selectivity sensitivity in low response time. electrochemical studied using impedance spectroscopy (EIS) cyclic voltammetry (CV). At polarization potential 0.2 V vs. Ag/AgCl, sensor illustrated only 2 s at 30 °C pH 7.5. LOD LOQ calculated found be 0.15 nM 2.8 nM, respectively. signal showed linear concentration range 0.01-250 μM. 5 °C, demonstrated half-time 120 days, through which utilized 100 times this temperature conditions. By common colorimetric method, data levels serum determination coefficient (R2) 0.97.

Language: Английский

Citations

36
CNTs-Supercapacitors: A Review of Electrode Nanocomposites Based on CNTs, Graphene, Metals, and Polymers DOI Open Access
Ghobad Behzadi Pour, Hassan Ashourifar, Leila Fekri Aval

et al.

Symmetry, Journal Year: 2023, Volume and Issue: 15(6), P. 1179 - 1179

Published: June 1, 2023

Carbon nanotubes (CNTs), due to mechanical, electrical, and surface area properties their ability adapt different nanocomposite structures, are very substantial in supercapacitor electrodes. In this review, we have summarized high-performance, flexible, symmetry CNT supercapacitors based on the CNTs/graphene, CNTs/metal, CNTs/polymer To present recent developments supercapacitors, discuss performance of electrical such as specific capacitance (SC), power energy densities, retention (CR). The comparison electrodes results reported for future researchers.

Language: Английский

Citations

32