Aklilu Melese; Kenaegzer Mulate; Abdu Hussen; Afework Hailekiros; Walelign Wubet
Abstract
A group of supramolecular solid materials known as "metal organic frameworks"(MOFs) are a type of hybrid networks made up of a variety of inorganic and organic linkers that are all tightly bonded to metal ions. These classes of compounds have a larger surface area with the benefit of variable pore sizes, ...
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A group of supramolecular solid materials known as "metal organic frameworks"(MOFs) are a type of hybrid networks made up of a variety of inorganic and organic linkers that are all tightly bonded to metal ions. These classes of compounds have a larger surface area with the benefit of variable pore sizes, a diverse structure, and a lovely appearance. They are promising materials for a range of applications because they are easy to develop and have consistent, fine-tunable pore structures. Controlled mixing of MOFs with functional materials is resulting in the development of new multifunctional composites and hybrids that display unique properties that outperform those of their component parts as a whole. The structural characteristics, classification, The most widely used and successful strategies for MOFs composite synthesis are presented like (Encapsulation method, Solvothermal method, Solution impregnation, and Click chemistry (reaction) method), numerous characterization techniques and their applications MOFs composite have all been covered in this review. Crystals with extremely high porosity and good thermal and chemical stability can be produced by carefully choosing the MOF ingredients. Because of these properties, MOFs composites can be used for a wide range of applications, including, sensing toxic chemicals, drugs, gases, and trace metals, components of foods and many more and also for detection of different materials. This is a rapidly developing interdisciplinary research area therefore to present the current situation of the field; this article has covered recent achievements as well as new avenues to investigate the future scope and uses of MOFs composites/hybride.
Femina Kanjirathamthadathil Saidu; Alex Joseph; Eldhose Varghese; George Vazhathara Thomas
Abstract
Metal nanoparticles incorporated conducting polymer nanocomposites have outstanding properties and potential applications in various fields and significant research has been carried out over the last two decades for the development of efficient methods for their synthesis. The current study describes ...
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Metal nanoparticles incorporated conducting polymer nanocomposites have outstanding properties and potential applications in various fields and significant research has been carried out over the last two decades for the development of efficient methods for their synthesis. The current study describes a microwave-assisted, rapid, and environmentally friendly method for depositing silver nanoparticles (AgNPs) over poly(1-naphthylamine) (PNA) using clammy cherry (Cordia Obliqua willd) extract as a reductant to create silver/nanocomposites (Gr-Ag/PNA) with varying silver contents. Thermal stability and charge transfer kinetics of PNA was significantly improved upon introducing AgNPs, as evidenced by the thermogravimetric analysis and electrochemical investigations, respectively. All prepared Gr-Ag/PNA nanocomposites could show improved catalytic activity towards the borohydride-aided reduction of 4-nitrophenol (4-NP) and the pseudo-first-order rate constants showed a direct relationship with the percent of silver incorporated over PNA. Additionally, for the first time, the Gr-Ag/PNA modified carbon paste electrode (Gr-Ag/PNA/CPE) was utilized to validate its usefulness and applicability in the electrocatalytic reduction of 4-NP. A low-cost enzymeless voltammetric 4-NP sensor based on Gr-Ag/PNA/CPE was fabricated and it showed excellent selectivity for 4-NP, as well as a strong linear response over a wide range of 4-NP concentrations (30-1000 𝜇M) and a detection limit of 6.25 𝜇M.
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