Papers by Majid Farsadrooh
Journal of Coordination Chemistry, 2021
Abstract A 2 D cadmium(II) coordination polymer (CP), [Cd(N3)(L)]n (1) [L = picolinato] was synth... more Abstract A 2 D cadmium(II) coordination polymer (CP), [Cd(N3)(L)]n (1) [L = picolinato] was synthesized by the branch tube method. Nano and microstructures of 1 were synthesized by sonochemical technique in various conditions (different times and solvents) and were identified by elemental analysis, FT-IR spectra, scanning electron microscopy (SEM), and powder X-ray diffraction (PXRD). The effects of time of reaction and solvent on the size and morphology of the nano and microstructures of 1 were also evaluated. The results showed that change in solvent leads to changes in the morphology of structures, while the change in reaction time was effective on the size of the structures. Therefore, the morphology of 1 is solvent-dependent. Graphical Abstract
Catalysts
Magnesium oxide nanoparticles (MgO NPs) have emerged as potential materials for various biomedica... more Magnesium oxide nanoparticles (MgO NPs) have emerged as potential materials for various biomedical applications due to their unique physicochemical properties, including biodegradability, biocompatibility, cationic capacity, high stability and redox properties. MgO NPs have become an attractive platform to combat microbes and may be a promising alternative to overcome challenges associated with eliminating microbial biofilms and antibiotic resistance. Hence, due to the increasing use of MgO NPs in biomedicine, new synthetic strategies for MgO NPs are necessary. MgO NPs synthesised using green methods are non-toxic, eco-friendly and have high stability for a wide range of biological, medical and catalytic applications. This review presents the recent advances in biosynthesis strategies of MgO NPs by diverse bio-templates, such as plant, bacterial, fungal and algal extracts. Its photocatalytic properties show a suitable inhibitory function against pathogenic agents, such as microbial ...
Sustainability
Electrospun polymeric nanofibers have attracted great attention in filtration systems and protect... more Electrospun polymeric nanofibers have attracted great attention in filtration systems and protective clothes. One of them is polyacrylonitrile (PAN) nanofibers, which are a suitable choice for the fabrication of protective clothes in the defense industry, due to their good fiber formation and easy optimization with chemical reagents. They do not possess adequate properties for protection against chemical, biological, and radiological agents. In this research, poly (acrylonitrile-co-methyl methacrylate) (PANMM) nanofibers and PANMM nanofibers containing 10B were fabricated via the electrospinning method. The study of the morphology of nanofibers, using scanning electron microscopy (SEM), revealed that smooth and knotted fibers with an average diameter of 259 ± 64 nm were obtained, using 12% (w/v) of PANMM in the solution as the optimal concentration for the electrospinning process. This sample was doped with boron (10%, 30%, and 50% (w/w)) to fabricate the samples of PANMM + boric ac...
International Journal of Hydrogen Energy
Journal of Molecular Liquids
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2022
Journal of Hazardous Materials, 2021
In the present work, spherical carboxymethyl cellulose-cellulose-nickel (CMC-C-Ni) composite bead... more In the present work, spherical carboxymethyl cellulose-cellulose-nickel (CMC-C-Ni) composite beads as novel adsorbent was synthesized to make a stable expanded bed adsorption (EBA) column for the treatment of the oily wastewater collected from the downstream of rapeseed industry. The morphology and structure of the CMC-C-Ni composite beads were studied by scanning electron microscopy (SEM) and optical microscope. The SEM images revealed that the synthesized composite beads were spherical with porous structure. The pore size of the beads was in the range of 90-200 nm. The physical characteristics of the CMC-C-Ni composite beads including wet density, porosity, and water content were respectively in the ranges of 1.23-1.63 g/cm3, 82.29-90.75%, and 52-76%. The factor of bed expansion in the range of 2-3 was corresponded with Richardson-Zaki equation. The results showed that by increasing the fluid viscosity, the terminal settling velocity (Ut) was reduced. The expansion index values were between 2.77 and 3.14 that were close to 4.8 (commonly utilized index in the laminar flow regimes). CMC-C-Ni composite beads were tested when the velocity of fluid was ˂ 700 cm/h, and the Daxl was found to be ˂ 1 × 10-5 m2/s (steady state).
Colloid and Interface Science Communications, 2022
Interface Science and Technology, 2021
Abstract Metal–organic frameworks (MOFs) are fabricated by linking inorganic and organic units by... more Abstract Metal–organic frameworks (MOFs) are fabricated by linking inorganic and organic units by strong bonds (reticular synthesis). The flexibleness with that the constituents, geometry, size, and functionality could be varied has resulted to more than 20,000 different MOFs being reported and studied within the past decade. At the start of the chapter a brief overview, kinds of ligands and various methods for synthesis of MOFs are described. The unique feature of MOFs led to a crucial issue to many applications in which MOFs are promising candidates. Multiphoton absorption, shockwave chemistry, electronic and vibrational properties of MOFs, novel PVA/MOF nanofibers, synthesis of amine-functionalized MOFs discussed here.
Journal of Molecular Liquids, 2021
Abstract A novel hyperbranched magnetic dendrimer was successfully fabricated and utilized as an ... more Abstract A novel hyperbranched magnetic dendrimer was successfully fabricated and utilized as an efficient adsorbent for solid-phase extraction of letrozole from different media (plasma, urine, and tablet matrices) in this study. Iron oxide nanoparticles as magnetic cores were modified with PEGylated block-dendrimer polymer branches. The Fe3O4@SiO2/DAG/MMA/ED/Gly-PEGylated was characterized by a Vibrating sample magnetometer (VSM), Thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), and Scanning electron microscope (SEM) analyses. The average particle size was obtained as 47 ± 4.3 nm for the nano-adsorbent. The experimental parameters influencing the extraction efficiency of the letrozole, such as pH of the sample solution, and contact time were carefully examined and optimized. Moreover, the isotherm adsorption and kinetic studies demonstrated that the adsorption process was well fitted to Langmuir isotherm and Pseudo-first-order kinetic models, respectively. A maximum adsorption capacity of 20 mg g−1 was acquired based on the Langmuir model. Under optimal conditions, the suggested approach provided favorable linearity in the range of 0.1–15 μg L−1, low limits of detection (1.36 μg L−1), and quantification (4.54 μg L−1). The recoveries for spiking 1 μg L−1 of letrozole in plasma and urine samples and letrozole tablet were respectively, 75.6%, 98.4%, and 93.7%. Relative standard deviation values for plasma, urine, and tablet were respectively, obtained to be 1.1, 05, and 0.4. These results showed that the suggested technique was a potent analytical tool and a helpful alternative for common analysis of such medicines.
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2021
International Journal of Hydrogen Energy, 2021
Abstract Direct Ethanol Fuel Cells (DEFCs) have fascinated remarkable attention on account of the... more Abstract Direct Ethanol Fuel Cells (DEFCs) have fascinated remarkable attention on account of their high current density and being environmentally friendly. Developing efficient and durable catalysts with a simple and fast method is a great challenge in the practical applications of DEFCs. To this end, the bimetallic Pd–Ag with adjustable Pd:Ag ratios were synthesized via a simple and one-pot strategy on activated carbon as a support in this study. The Pd–Ag/C catalysts with different molar ratios were synthesized by simultaneous reduction of Pd and Ag ions in the presence of the ethanolic sodium hydroxide as a green reducing agent for the first time. Several different methods, including FE-SEM, HR-TEM, XRD, XPS EDX, ICP-OES, and BET were used to confirm the structure and morphology of the catalysts. The performance of catalysts was also examined in ethanol oxidation. Obtained results of electrochemical experiments revealed that the Pd3–Ag1/C catalyst had superior catalytic activity (2911.98 mAmg−1Pd), durability, and long-stability compared to the other catalysts. The excellent catalytic characteristic can be attributed to the synergistic effect between Pd and Ag. We presume that our simple method have the chance to be utilized as a proper method for the synthesis of fuel cell catalysts.
Microchemical Journal, 2020
Abstract A novel µ-Thin layer Chromatography coupled with Laser Ablation Inductively coupled Plas... more Abstract A novel µ-Thin layer Chromatography coupled with Laser Ablation Inductively coupled Plasma Mass Spectrometry method based on Ion Imprinted Polymer (IIP) is developed for the first time in this paper which tries to investigate the separation of inorganic arsenic species in aqueous media. Surface morphology, functionality, and bulk composition of the as-synthesized copolymer were confirmed utilizing multiple techniques, such as XRD, FESEM, and FT-IR. IIP-Copolymer was combined with CaSO4, as a binder agent, that was used to prepare a thin layer chromatography plate. Subsequently, inorganic arsenic species were separated over the TLC plate based on As(V)-imprinted polymer. In the following, the plate surface was scanned via laser ablation which volatilized the inorganic arsenic species from the TLC plate and then introduced them to the ICP-MS system. The effect of some experimental conditions including pH, mobile phase composition, and IIP/CaSO4 mass ratio on the separation efficiency were also investigated. Moreover, the obtained results for the spiked inorganic arsenic species in real samples, such as Angouran, Nakhlak, and Zarshouran proved that the methods were practically applicable to speciation analysis. Under the established optimal condition, the detection limit, Relative Standard Deviation (RSD) of responses, and linear dynamic range (LDR) of the method were obtained as 0.3 μg L−1, 3.8%, and 0.2–100 μg L−1 for As(V) assay. The IIP-µTLC/LA-ICP-MS has also illustrated great application perspectives for rapid and high-effective selection, characterization, and separation of ultra-trace inorganic arsenic species in environmental water samples.
Energy & Fuels, 2021
Although plenty of research studies have extensively focused on the synthesis of electrocatalysts... more Although plenty of research studies have extensively focused on the synthesis of electrocatalysts with diverse methods, the synthesis of a high-performance electrocatalyst by a green and efficient ...
International Journal of Hydrogen Energy, 2020
Polyol method was improved by adding alcoholic NaOH to reaction mixture. The proposed polyol meth... more Polyol method was improved by adding alcoholic NaOH to reaction mixture. The proposed polyol method caused a significant reduction in temperature and reaction time. Pd/C catalyst prepared by improved polyol method shows higher catalytic activity.
International Journal of Hydrogen Energy, 2020
Ultrasonics Sonochemistry, 2018
synthesis of novel Sn(II)-imprinted poly(dimethyl vinylphosphonate) by ultrasound-assisted techni... more synthesis of novel Sn(II)-imprinted poly(dimethyl vinylphosphonate) by ultrasound-assisted technique: Adsorption and pre-concentration of Sn(II) from aqueous media and real samples,
International Journal of Hydrogen Energy, 2019
A new rapid and facile strategy for the preparation of Pd-Ni/G and Pd-Cu/G catalysts with a three... more A new rapid and facile strategy for the preparation of Pd-Ni/G and Pd-Cu/G catalysts with a three-dimensional porous structure are presented in this paper. Both catalysts are formed using the same strategies in two steps: 1) The reduction of Ni(OH) 2 and Cu(OH) 2 to the metallic form on the surface of G/GC Electrode using the Zn/HCl reducer, 2) The galvanic displacement of Ni and Cu by Pd 2þ. Afterwards, three-dimensional Pd nanonetwork is generated on the glassy carbon electrode via the galvanic displacement. Compared to the other routes, this strategy depicts several advantages (e.g. fast way, facile, surfactant and reductant free, cheap, and eco-friendly.) Both catalysts are applied towards Ethanol Oxidation Reaction (EOR). Both porous structures show higher electrocatalytic activity and stability toward EOR compared to the commercial Pd/C. The extraordinary catalytic activity and durability of the both proposed catalysts for EOR can be related to the two vital
Journal of Electroanalytical Chemistry, 2019
A simple and fast galvanic reduction method is applied to the preparation of Pd-Cu/rGO modified e... more A simple and fast galvanic reduction method is applied to the preparation of Pd-Cu/rGO modified electrode. The preparation method includes reduction of deposited Graphene Oxide (GO) on the Glassy Carbon Electrode (GCE), and reduction of deposited CuCl 2-PdCl 2 on reduced graphene oxide. Both reduction steps are performed using 2% aqueous Zn/HCl solution. During the second step, palladium-copper bimetallic nanonetwork was created on reduced graphene oxide (rGO). To investigate the morphology, crystalline phases and chemical composition of the as-prepared catalyst, Field Emission Scanning Electron microscopy (FESEM), Fourier-Transform Infrared (FTIR), X-ray Diffraction (XRD), Energy-Dispersive X-ray Spectroscopy (EDS), and Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) were applied, respectively. Catalytic activity and stability of Pd-Cu/rGO were studied by cyclic voltammetry and chronoamperometry. The Pd-Cu nanocatalyst supported on reduced graphene oxide illustrates greatly increased electrocatalytic activities for Formic Acid Oxidation (FOR) in an acid electrolyte. The current density (265 mAcm-2) and mass activity (3704 mAmg-1 Pd) of Pd-Cu/rGO catalyst were higher by 4.7 and 2.07 times than that of Pd/C for the formic acid oxidation. Moreover, Pd-Cu/rGO catalyst represented improved stability during FOR than Pd/C.
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Papers by Majid Farsadrooh