Journal of Nanostructure in Chemistry

http://link.springer.com/journal/40097

List of Papers (Total 276)

A DFT study on N-6-amino-hexylamide functionalized single-walled carbon nanotubes in interaction with silver ion in a gaseous environment

In this study, quantum mechanical calculations, such as density functional theory (DFT), have been employed to determine the active positions of nanosensor and thermodynamics functions of interaction between Ag+ and nanosensor have been calculated. HOMO and LUMO energies and energy difference between donor atoms (i) and acceptor atoms (j) have been evaluated. In addition, the...

Exploration of catalytic performance of nano-La2O3 as an efficient catalyst for dihydropyrimidinone/thione synthesis and gas sensing

In the present work, we report an proficient, elegant, and rapid one-pot synthesis of variety of 3,4-dihydropyrimidine-2(1H)-one/thione derivatives from β-dicarbonyl compounds, urea/thiourea, and various aromatic aldehydes using nano-La2O3 catalyst under ultrasonic irradiation. This novel synthetic strategy benefits with excellent yields, short reaction time, benign reaction...

Synthesis and characterization of epoxy/graphite/nano-copper nanocomposite for the fabrication of bipolar plate for PEMFCs

In this research, the synthesis of a suitable nanocomposite in terms of properties and economics for use in bipolar plates in proton-exchange membrane fuel cells (PEMFCs) has been carried out successfully. Nowadays, bipolar plates play a significant role in fuel cells which is absolutely important in renewable energy industry. So, epoxy/graphite/nano-copper nanocomposite bipolar...

A sensitive lead titanate nano-structured sensor for electrochemical determination of pentoxifylline drug in real samples

In the present study, lead titanate nano-sized powders were synthesized using citric acid gel method. The nanopowders were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Then, a nanocomposite system based on lead titanate nanopowders and carbon paste electrode (CPE) was designed and applied for determination of pentoxifylline (PTX). The...

Preparation of PANI–CuZnO ternary nanocomposite and investigation of its effects on polyurethane coatings antibacterial, antistatic, and mechanical properties

In this study, a facile method for the production of Antibacterial and Antistatic polyurethane coatings was investigated using copper modified ZnO nanoparticles–polyaniline nanofibers (PANI–CuZnO) ternary nanocomposite. PANI–CuZnO ternary nanocomposite was synthesized through two steps. First, copper-modified ZnO nanoparticles were produced through the hydrolysis method using...

Electrosynthesis of nano-sized pyran and chromene derivatives by one-pot reaction between cyclic-1,3-diketons, malononitrile/ethyl cyanoacetate, and isatins

An efficient and sustainable method was developed for the electrocatalytic synthesis of nano-sized 4H-pyran derivatives via a green, one-pot, three-component condensations of cyclic-1,3-diketones [including 1H-indene-1,3(2H)-dione, cyclohexane-1,3-dione, cyclopentane-1,3-dione, pyrimidine-2,4,6(1H,3H,5H)-trione], malononitrile or ethyl cyanoacetate, and isatins in an undivided...

A review on the progress of nanostructure materials for energy harnessing and environmental remediation

The nanostructured materials offer various advantages as they provide more flexible space for ease reconstruction, as their nanosize expands the limits and results in confinement effect, enhanced mechanical stability, and large surface area, and make them suitable for photocatalytic activities. The advancement in synthesis techniques provides the freedom to alter its physical...

Optimization of physicochemical parameters in the biofabrication of gold nanoparticles using marine macroalgae Padina tetrastromatica and its catalytic efficacy in the degradation of organic dyes

Green synthesis of metallic nanoparticles by means of renewable bioresources has emerged as a new trend in current nanotechnology research with improved environmental safety. In the current study, monodispersed gold nanoparticles (AuNPs) with excellent stability were prepared in a completely green and cost effective manner using aqueous extract of marine macroalgae-Padina...

Azadirachta indica influenced biosynthesis of super-paramagnetic iron-oxide nanoparticles and their applications in tannery water treatment and X-ray imaging

Super-paramagnetic iron-oxide nanoparticles (SPIONs) have been exploited from a very long time and are researched profoundly due to their unique properties. In this study, SPIONs were synthesized using environmentally accepted green synthesis process where Azadirachta indica leaf extract was used as one of the reducing agents along with basic metal precursors used in chemical...

Synthesis and characterization of brominated poly(2,6-diphenyl-p-phenylene oxide)/SiO2 nanocomposite membrane for CO2/N2 separation

Synthesized poly(2,6-diphenyl-p-phenylene oxide) (PPPOdp) and brominated poly(2,6-diphenyl-p-phenylene oxide) (BPPPOdp) are identified as new membranes for CO2/N2 separation and characterized by SEM, FTIR, and 1HNMR. BPPPOdp is known as a flexible membrane with higher permselectivity (\(\alpha_{{{\text{CO}}_{ 2} / {\text{N}}_{ 2} }}\) = 30.53) than PPPOdp membranes. BPPPO and...

Influence of calcination temperature on the activity of mesoporous CaO/TiO2–ZrO2 catalyst in the esterification reaction

In the present study, the effect of calcination temperature on the structure and performance of mesoporous CaO/TiO2–ZrO2 catalyst fabricated by sol–gel method used in the esterification reaction was assessed. Then, CaO/TiO2 catalyst was also synthesized via the same method to evaluate the effect of zirconia cations on its properties and activity. The samples were characterized by...

Preparation and characterization of ascorbic acid-mediated chitosan–copper oxide nanocomposite for anti-microbial, sporicidal and biofilm-inhibitory activity

The chitosan–copper oxide (Chi–CuO) biopolymer nanocomposites were synthesized by a simple green chemistry method using ascorbic acid as a reducing and capping agent. The intense peak around 300 nm was observed in the UV–visible spectrum indicating the formation of CuO nanoparticles. The prepared Chi–CuO nanocomposites were characterized using energy-dispersive X-ray spectroscopy...

Biogenesis of metal nanoparticles and their pharmacological applications: present status and application prospects

Green chemistry approaches for the synthesis of metallic nanoparticles have become a new and promising field of research in recent years. Synthesis of metal nanoparticles [like gold (Au), silver (Ag), lead (Pb), platinum (Pt), copper (Cu), iron (Fe), cadmium (Cd), and other metal oxides such as titanium oxide (TiO), zinc oxide (ZnO), etc.] by various chemical and physical...

Biosynthesis, characterization, and antibacterial activity of zinc oxide nanoparticles derived from Bauhinia tomentosa leaf extract

A facile, eco-friendly synthesis of zinc oxide nanoparticles (ZnO NPs) employing Bauhinia tomentosa leaf extract as bioreducing agent was reported. The green-synthesized ZnO NPs were characterized by UV–Vis, TEM, EDX, XRD, and FTIR analyses. The formation of ZnO NPs was confirmed by the appearance of characteristic SPR peak at 370 nm due to the collective oscillation of electrons...

Characterization of NiO/CoPc nanocomposite material synthesized by solvent evaporation route

Nickel oxide/cobalt phthalocyanine (NiO–CoPc) nanocomposite is synthesized by solvent evaporation method. The synthesized nanocomposite is characterized for thermal, structural, and optical properties. Thermogravimetric and differential thermal analysis results proved the thermal stability of the sample. XRD patterns revealed an average crystallite size of 16 and 17.5 nm...

Microwave-assisted synthesis of silver nanoparticles and their application in catalytic, antibacterial and antioxidant activities

Eco-friendly silver nanoparticles (AgNPs) were synthesized using a carboxymethylated gum kondagogu (CMGK) as capping and reducing agent by microwave irradiation method. Synthesized AgNPs were analyzed by TEM, showed spherical in shape with an average particle size distribution of 9 ± 2 nm. XRD results showed that the cubic-structured AgNPs with crystallite size of 8.6 nm. The...

Preparation of inorganic–organic nanohybrid compound based on NiII, MoO3 and p-phenylenediamine by hydrothermal method and its photoluminescence property

The new nanocrystalline composition was synthesized using NiSO4 and MoO3 and PPDA (p-phenylenediamine) via the hydrothermal method. The structure, morphology and photoluminescence property of nanocrystal were studied using X-ray diffraction (XRD), Fourier transform infra red (FT-IR) spectroscopy, scanning electron microscopy (SEM), photoluminescence (PL) spectra...

Graphene and graphene oxide as nanomaterials for medicine and biology application

Graphene- and graphene oxide-based nanomaterials have gained broad interests in research because of their unique physiochemical properties. The 2D allotropic structure allows it to be used in various biological fields. The biomedical applications of graphene and its composite include its use in gene and small molecular drug delivery. It is further used for biofunctionalization of...

Biosynthesis of silver nanocomposite with Tarragon leaf extract and assessment of antibacterial activity

The aqueous extract of Tarragon, as a reducing agent, was used to synthesize silver–montmorillonite (MMT) nanocomposite (Ag–MMT-NPs) in the batch method. The leaf extract and metal solution concentrations were optimized to improve Ag–MMT-NPs synthesis in 48 h. For characterizing the nanocomposite, powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR...

Synthesis of dendronic triazolo-pyridazinones and their self-assembly into nanofibers and nanorods

A series of first-, second-, and third-generation dendronic triazolo-pyridazinones were synthesized in good yields via the CuI-catalyzed azide–alkyne cycloaddition reactions of 4,6-diphenyl-2-(prop-2-yn-1-yl)pyridazin-3(2H)-one, possessing a terminal alkyne functional group with aromatic mono- and diazides with long alkyl and chiral glycol side-chain substituents. The chemical...

Effects of different surfactants on the silica content and characterization of Ni–SiO2 nanocomposites

This article presents a method for the electrochemical preparation of a coating of nickel–silica nanocomposites on a carbon steel substrate. The incorporation of hydrophilic silica particles into the Ni composite coating during co-electrodeposition is so difficult due to the small size and the hydrophilicity of SiO2 particle, generally less than 2 v% of silica is incorporated...