Faranak Manteghi

Iran University of Science and Technology · Division of Inorganic Chemistry

In this study, MOF-74 nanocarriers were coated with sodium alginate (SALG) to enhance physicochemical properties and biocompatibility. Spectroscopic and microscopic analyses showed MOF-74 particle size below 100 nm. Zinc-based MOF-74 nanocarriers (Zn-MOF-74) were developed for doxorubicin (DOX) delivery, achieving high drug loading efficiency (DLE)...

While MOF-74 drug delivery platforms are known for their high drug loading capacity (DLC) and efficiency (DLE), surface chemistry modifications can further enhance their performance. Two variants of Zn-MOF-74 nanoparticles (particle size < 100 nm, per microscopic analysis) were prepared at room temperature, fully characterized and loaded with doxor...

Defect engineering in metal–organic frameworks involves intentionally introducing defects to modify their properties. These defects create new active sites, increase surface area, and enhance overall performance in various applications. If properly designed, these intentional defects can create new active sites and increase the specific surface are...

The rising demand for fossil fuels and the resulting pollution have raised environmental concerns about energy production. Undoubtedly, hydrogen is the best candidate for producing clean and sustainable energy now and in the future. Water splitting is a promising and efficient process for hydrogen production, where catalysts play a key role in the...

The excessive release of greenhouse gases, especially carbon dioxide (CO2) pollution, has resulted in significant environmental problems all over the world. CO2 capture technologies offer a very effective means of combating global warming, climate change, and promoting sustainable economic growth. In this work, UiO-66-NH2 was synthesized by the nov...

Modified date tree fiber has been applied as a nanoadsorbent to remove nitrate ion from wastewater. When the nitrate concentration in drinking water is more than a significant amount, nitrate removal will be a technical challenge. Since correction of the adsorbent surface by metals and metal oxides can significantly increase its adsorption capacity...

Among the water pollution sources, heavy metals are considered the most hazardous because of their high toxicity to human health and their ability to badly damage the kidneys, brain, and nerves, as well as cause birth defects. Based on the promising features of metal-organic frameworks ( MOFs), they could act as a favorable candidate in heavy metal...

The increasing tolerance and resistance of pathogens to conventional antibiotics is a global health issue, and there is a need to use effective and new substances. Metal–organic frameworks (MOFs) are highly functional materials with antimicrobial properties that come from their composition, structure, and high internal volume, which could be a sour...

Bacterial infections have extensive impacts on public health. Therefore, finding compounds with antibacterial properties could serve as an effective method. A nanocomposite, Ag/CaO, was prepared from silver nitrate and egg shells. After calcination of the egg shells, the remaining solid, CaO, was cooled; then, silver nitrate was added and the mixtu...

A composite based on three components including PMMA (polymethyl metacrylate), HA (hydroxyl apatite) and LDH (layered double hydroxide) was prepared, characterized and applied as bone cement. Bone cement is a biomaterial used in clinical applications to fix joint replacements in hip and knee joints. There are four types of bone cement, two of which...

This research reports a simple and novel method for the controlled synthesis of cadmium oxide (CdO) and cadmium hydroxide (Cd(OH)2) with different new morphologies in the presence of NaBH4 or LiBH4 as reducing agent, by using κ-carrageenan as a capping/stabilizing agent and potassium bromide as a template. The synthesized products were characterize...

A chromium-containing metal-organic framework (MOF), MIL-101 ((Chromium(III) benzene-1,4-dicarboxylate)), was used to catalyze the one pot, three component synthesis of some 2,4,5-trisubstituted imidazoles under solvent-free conditions. The advantages of using this heterogeneous catalyst include short reaction time, high yields, easy and quick isol...

In this paper, a novel ionic polymer metal composite (IPMC) has been fabricated by chemical electroless plating method integrated with doping ZnO nanoparticles in the nafion polymeric matrix. This IPMC is a smart material acting as a responsive actuator in biomedical devices. ZnO nanoparticles, known as remarkable piezoelectric material, could high...

A new nanocomposite consisting of activated carbon (AC) from the Cortaderia selloana flower and copper-based metal-organic framework (HKUST-1) was synthesized through a single-step solvothermal method and applied for the removal of lead ions from aqueous solution through adsorption. The nanocomposite, AC/HKUST-1, was characterized by Scanning Elect...

Herein, a novel highly sensitive and selective non-enzymatic glucose sensor was developed. This sensor was prepared with a one-step electrodeposition process, which means that the palladium nanoparticles and NiAl layered double hydroxide were electrosynthesized simultaneously (Pd-NiAl-LDH) on a graphite sheet electrode (GS) covered by nitrogen-dope...

In this study, a terephthalate and pyrazine-based metal–organic framework (MOF) was prepared using the oxygen and nitrogen donor ligands through the hydrothermal method. In the MOF, cobalt and nickel ions were selected as metal nodes which are connected by terephthalate and pyrazine linkers. The as-prepared MOF was utilized as Cr adsorbent in water...

A magnetic composite consisting of iron oxide and a cobalt–aluminum-layered double hydroxide, Fe2O3@Co-Al-layered double hydroxide was prepared through linking of Fe2O3 to Co-Al layered double hydroxide (LDH) by sodium acetate. Layered double hydroxides are generally described as [M2+1–xM3+x(OH)2] [An–x/n·mH2O], where M2+ and M3+ are divalent and t...

Metal−organic frameworks (MOFs), which are porous materials that are prepared from metal ion/clusters and multidentate organic ligands, have evolved to be next generation utility materials because of their usability in diverse applications. MOFs, as a class of interesting materials, have attracted great attention due to their controllable pore size...

Hollow mesoporous silica (HMS) spheres were synthesized using cetyltrimethylammonium bromide (CTAB) and carbon nanospheres as a hard template through a hydrothermal procedure. The prepared HMS was characterized by UV-Vis, FT-IR, TG, XRD, BET and SEM measurements. HMS was functionalized using aminopropyltriethoxysilane (APTES) and amino groups were...

Photocatalytic degradation of direct red 264 under visible light using NiFe2O4 and Zn‐doped NiFe2O4 nanoparticles was the primary goal of this work. Hence, NiFe2O4 and Zn‐doped NiFe2O4 nanoparticles were prepared by the sol–gel auto combustion method. The powder X‐ray diffraction pattern unveiled the formation of spinel phase of NiFe2O4 with the av...

Cu and Zn‐doped Cu ferrites were synthesized by sol–gel auto‐combustion method. The samples were characterized by XRD, SEM, EDX, VSM, FT‐IR, and DRS methods. Powder XRD analysis and FT‐IR spectroscopy confirmed the formation of ferrites spinel phase. The crystallite sizes were calculated using Scherrer's equation. The morphologies and sizes of the...

Two metal–organic frameworks based on zirconium with high stability were synthesized by the hydrothermal method. Zirconium salt, benzene-1,4-dicarboxylic acid, and benzene-1,3,5-tricarboxylic acid were used to produce Zr6O4(OH)4(BDC)6 and Zr6O4(OH)4(OAc)6(BTC)2 metal–organic frameworks, respectively. The potential of adsorption of Congo red by synt...

In this study, Ionic polymer metal composites were fabricated for bio-actuation applications using chemical electroless plating (CEP) and physical sputtering (PS) methods. To use IPMC in biomedical devices, it was encapsulated by a polydimethylsiloxane (PDMS) thin film which not only makes it biocompatible but also decreases the water loss from the...

In this paper, a novel Ionic Polymer Metal Composite (IPMC) has been fabricated by chemical electroless plating integrated with doping Layered Double Hydroxide (LDH) nanoparticles in the nafion polymeric matrix. Platinum, as a noble metal, was used for electrode deposition of the prepared doped nafion and successfully act as a high-quality electrod...

In the present study, CuBi2O4/Bi3ClO4 nanocomposites have been fabricated via an improved Pechini sol-gel process using the mixtures of various gelling agents and polybasic acids. This work shows that by controlling the reaction conditions such as kind of polybasic acids, gelling agents, pH and mole ratio of polybasic acid to total metals, the CuBi...

In the present work, we have reported the straightforward preparation of a novel MOF heterostructure with the BaWO4 under mild conditions. In order to confirm the structure of the synthesized composite we utilized different characterization techniques including Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared...

In this work, a novel NiO/Bi2O3/Bi3ClO4 heterojunction nanocomposite with high visible-light-driven photocatalytic performance has been fabricated via an improved Pechini sol-gel method. The results exhibited that by controlling the process parameters such as kind of carboxylic acids, gelling agents and molar ratio of carboxylic acid to metals, the...

Since the local, on demand, cancer therapy is a challenging clinical issue today, this paper presents the design, fabrication and characterization of a remotely controlled single reservoir drug delivery chip using Ionic Polymer Metal Composite (IPMC) actuator. Here, Drug release was externally programmed and controlled wirelessly on demand by a com...

In this work, a novel composition of cadmium bismuthates nanostructures, Cd3Bi10O20, was prepared by a sol–gel auto-combustion approach. To prepare the Cd3Bi10O20 nanostructures with controlled morphologies, various gelling agents, fuels and different molar ratios of fuel to total metals have been employed. Formation of as-synthesized Cd3Bi10O20 na...

A novel and facile approach of preparing ZnBi38O58 nanostructures was developed utilizing the amino acid-assisted sol-gel combustion route. In this study, the mixtures of various gelling agents and amino acids as fuel and different molar ratios of amino acid to total metals have been employed to prepare the nanostructured ZnBi38O58 with sphere-like...

A novel MOF based composite with CuWO4 noted as MOF/CuWO4 successfully prepared via a facile synthesis route. The as prepared MOF/CuWO4 composite was characterized with the aid of various characterization techniques such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), UV–Vis diffuse r...

Ionic Polymer Metal composites and drug delivery

In this work, a novel magnetic based composite of bimetallic Ni/Co based metal-organic framework with the magnetic BiFeO3 have been successfully synthesized with the aid of a facile synthesis approach. Different weight ratio of Co/Ni-MOF and magnetic BiFeO3 containing composite system have been prepared. The as-synthesized MOF/BiFeO3 composite have...

In this study, we have reported the facile synthesis approach and photocatalytic performance of a novel magnetic based heterojunction for the efficient degradation of organic dyes under mild reaction conditions. The as prepared BiFeO3/CuWO4 heterojunction was characterized by means of various characterization techniques such as X-ray diffraction (X...

Development of new multicomponent reactions (MCRS) is an area of considerable interest due to the fact that the products are formed in a single step and also the variety could be achieved only by changing the reaction components. Imidazole derivatives are in a very interesting class of heterocyclic compounds, because they have many pharmacological...

In this work, a novel metal–organic framework based composite with BiFeO3 noted as MOF/BiFeO3 has been synthesized and successfully employed as a highly efficient heterogeneous and recoverable catalyst for oxidation of primary and secondary alcohols under mild conditions. Accordingly, existence of high porosity and active sites of both MOF and BiFe...

In the present study SiO2-Cu nanocomposites are synthesized and characterized. At the next stage the thermal conductivity of the SiO2-Cu/water and SiO2-Cu/EG nanofluids are measured and reported. The results show that chemical deposition of a small amount of Cu on the SiO2 surface results in considerable rise in thermal conductivity of the base flu...

In the present work, a three-dimensional bimetallic metal–organic framework, [CoNi(µ3-tp)2(µ2-pyz)2] (tp = terephthalic acid, pyz = pyrazine) was applied as a highly efficient and recoverable heterogeneous catalyst. The catalyzed reaction was the one-pot three-component condensation reaction between benzil or benzoin with various substituted aromat...

CuFe2O4 have been widely investigated and used in variety of applications such as magnetic material, anode material, catalyst, and so on, because of their attractive magnetic, electronic, thermal and catalytic properties. Among methods to synthesize nanoferrites, the combustion synthesis is an easy, safe, rapid and economic method used to synthesis...

Recently, the polymer pyrolysis method by means of acrylic acid and metal salts has been developed for prepatation of different metal oxides. The co-polymeric precursor compounds are schematically supposed to have metal ions attached by the ionic bonds to carboxylate ions in a polymeric chain or between the polymeric chains. This uniform distributi...

Ferrite spinels may also contain mixture of two divalent metal ions, in which ratio of these divalent metal ions may vary, are called mixed ferrite. The cations distribution of mixed ferrite significantly affects the surface properties of ferrospinels making them catalytically active. Because of their small size and large number of cations, for co-...

Metal-organic frameworks (MOFs) as zeolite analogues with permanent porosity and absorption capacity are a class of hybrid functional materials that are self-assembled by the coordination of metal cations with organic linkers. MOFs have received considerable attention due to their high surface area, well-defined structure and chemical tenability. T...

Recently, nickel ferrite has attracted attention due to its multiple applications in storage devices, microwave devices, gas sensors, ferrofluids and catalysts. Nickel ferrites have excellent optical properties owing to their small band gap, which makes them suitable as a photocatalyst. Among methods to synthesize nanocrystalline NiFe2O4, combustio...

Metal organic frameworks (MOFs) contain inorganic and organic networks that can be easily functionalized to get tuneable properties. MOFs as highly porous crystalline materials constructed by coordination bonds between metal ions/clusters and organic ligands, have developed very fast due to not only their intriguing structures but also the potentia...

Layered double hydroxides (LDHs), have attracted attentions because of their layered structure and high anion-exchange capacity [1]. Positively charged brucite-like layers with interlayer spaces containing anions and water molecules form LDHs structure. Overall structure of LDHs makes it suitable as a heterogeneous catalyst for organic reactions [2...

In a reaction between cobalt(ii) and ammonium oxalate in the presence of CTAB or F-127 as surfactant to control the particle size, a cobalt oxalate complex was formed. The precipitate was calcined and the resulting nano cobalt oxide was characterized by Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Transmission...

Recently, great efforts were made to use green and environmentally friendly methods for the synthesis of nano size materials. These efforts involve the use of plant or fruit extracts as surfactants. Plant parts such as leaf, root, latex, seed, and stem are being used for metal nanoparticles synthesis. The greener environmentally friendly processes...

Complexant organic agents can effectively chelate metal ions with varying ionic sizes. They also serve as reductant being oxidized by nitrate ions, thus working as fuel in a synthetic method named auto combustion sol-gel. However, citric acid (C6H8O7) is most frequently used in producing in large variety of ferrites. It is inexpensive and is a more...

The compound (dienH3)2(pydc)3,1; dien: diethyltriamine, pydcH2: pyridine-2,6-dicarboxylic acid, as a proton transfer ligand was applied to synthesize (dienH3)2[Ce(pydc)3]3·16.75H2O, 2. The compounds were examined by elemental analysis, IR, UV and NMR spectroscopy. In addition, the compound 2 was studied by TG analysis, single crystal X-ray diffract...

Zinc oxide nanorods with hexagonal wurtzite structure oriented along c-axis were grown on the Au-coated glass substrate by combining the facile sol-gel and chemical bath deposition (CBD) techniques. The as-grown nanorods were subjected to oxygen plasma in order to diminish oxygen defects of intrinsic n-type ZnO nanorods. X-Ray Diffraction (XRD) and...

Applying succinic acid as a versatile, bidentate ligand to coordinate to cerium, resulted to a complex. The obtained crystalline complex was characterized by IR and melting point, then calcined at a certain temperature which was found by TGA method. Since in the first step, altering organic ligand type will affect on shape of precursor and as a res...

The new compounds, (phhyH)2(pydc), 1 and (phhyH)[Ni(pydc)(pydcH)].3H2O, 2, phhy: phenylhydrazine, pydcH2: pyridine-2,6-dicarboxylic acid, were synthesized and characterized by IR, 1H NMR, 13C NMR and UV spectroscopy. The structure of 2 was determined by X-ray crystallography. In the crystal structure, the metal ion was six coordinated by two triden...

The title compounds, (dmpH)[Cr(chelH)2]·3H2O, 1, (dmpH)[Co(chelH2)(chelH)]·3H2O, 2, (dmpH)[Ni(chelH2)(chelH)]·2H2O, 3 and [Cu(chelH)(dmp)]·3H2O, 4 (dmp is 2,9-dimethyl-1,10-phenanthroline and chelH3 is chelidamic acid or 4-hydroxypyridine-2,6-dicarboxylic acid) were obtained by one-pot reaction of 2,9-dimethyl-1,10-phenanthroline and 4-hydroxypyrid...

The title solvated molecular salt, C4H12N2²⁺·C7H3NO4²⁻·CH3OH or (pipzH2)(py-2,3-dc)·MeOH, was prepared by the reaction of pyridine-2,3-dicarb­oxy­lic acid (py-2,3-dcH2) and piperazine (pipz) in methanol (MeOH) as solvent. One of the two carboxylate groups of the acid fragment is nearly perpendicular to the pyridine ring and the other is almost in i...

The title compound, [Ni(H2O)6][Ni3(C7H3NO4)4(H2O)4]·8H2O, was obtained by the reaction of nickel(II) nitrate hexa­hydrate with pyridine-2,6-dicarb­oxy­lic acid (pydcH2) and 1,10-phenanothroline (phen) in an aqueous solution. The latter ligand is not involved in formation of the title complex. There are three different NiII atoms in the asymmetric u...

The title compound, [Tl(C2H6OS)6](NO3)3, consists of six dimethyl sulfoxide (DMSO) mol­ecules coordinated to a TlIII atom, which lies on a axis, and three nitrate anions (3. symmetry) to neutralize the charge. The coordination polyhedron around the TlIII atom is octa­hedral, defined by six O atoms of the DMSO mol­ecules. In the crystal structure, C...

Two novel compounds with formulae [Sn2(pydcH)2(H2O)2O]n, 1, and (4,4′-bpyH2)0.5[Pb(pydc)2(4,4′-bpyH)].4,4′-bpy.4H2O, 2, were obtained from a one-pot reaction between pyridine-2,6-dicarboxylic acid (pydcH2) and 4,4′-bipyridine (4,4′-bpy) with corresponding Sn(II) and Pb(II) salts. In compound 1 with a polymeric structure, each Sn(II) atom is six-coo...

A new compound of Sb(III), formulated as (pipzH2)[Sb2(pydc)4].2H2O (1), was synthesized and characterized by IR, 1H and 13C NMR spectroscopy, elemental analysis and single crystal X-ray diffractometry. The compound (1) is a member of a great family of supramolecular metallic compounds recently derived from a proton transfer ion pair i.e. (pipzH2)(p...

The novel title compounds, (pipzH2)1.5(pydcH)3·3.7H2O, 1, (pipzH2)[Zr(pydc)3]·8H2O, 2 and (pipzH2)[Ce(pydc)3]·8H2O, 3 in which pydcH2 is pyridine-2,6-dicarboxylic acid and pipz is piperazine were obtained in aqueous solution. The compounds were characterized by IR, 1H NMR and 13C NMR spectroscopy, elemental analyses, and X-ray crystallography. Comp...