A novel sol–gel synthesis and characterization of MgFe2O4@γ–Al2O3 magnetic nanoparticles using tragacanth gel and its application as a magnetically separable photocatalyst for degradation of organic dyes under visible light

Chromatographic identification of “green capping agents” extracted from Nasturtium officinale (Brassicaceae) leaves for the synthesis of MoO3 nanoparticles

“…Nanomaterial particularly metal oxides nanoparticles have gained huge attention among scientific researchers due totheir remarkable properties such as conductivity, stability, pronounce catalytic properties [8,29]. Yet nanoscience is facing the challenges in the synthesis of nanoparticles with minimum agglomeration at a nanoscale [13,[33][34][35][36]. However, to overcome these synthesis problems environmentally friendly and cost effective reducing agents should be used.…”

Magnetically Recoverable Catalysts: Catalysis in Synthesis of Polyhydroquinolines

“…silica, alumina, zeolites and mesoporous materials) as catalyst supports. Although these protocols are valuable, there are several drawbacks such as tedious work up routs, unsatisfactory yields and difficult separation or recovery . Furthermore, in these catalytic strategies, fewer sites on the surface are accessible for catalysis; less reactive and selective is the catalytic system, and sometimes the support itself can act as the catalyst of side reactions …”

“…Although these protocols are valuable, there are several drawbacks such as tedious work up routs, unsatisfactory yields and difficult separation or recovery. [94][95][96][97][98] Furthermore, in these catalytic strategies, fewer sites on the surface are accessible for catalysis; less reactive and selective is the catalytic system, and sometimes the support itself can act as the catalyst of side reactions. [77,[99][100][101][102][103] As a new and efficient generation of recoverable materials, magnetic nanoparticles (MNPs) have received lots of attention due to their unique advantages such as high surface area to bulk ratios, low toxicity, high activity and thermal stability and the capability of surface modifications and easy dispersion.…”

Fe3O4‐supported Schiff‐base copper (II) complex: A valuable heterogeneous nanocatalyst for one‐pot synthesis of new pyrano[2,3‐b]pyridine‐3‐carboxamide derivatives

“…[11][12][13][14][15][16] Among these NPs, nanometal oxides such as Fe 2 O 3 , Fe 3 O 4 , TiO 2 , Al 2 O 3 , ZnO, etc. [18][19][20][21][22][23][24][25][26][27] Magnetic nanoparticles (MNPs) have recently received considerable attention both as solid support materials for a variety of homogeneous catalysts and as nanocatalysts in organic synthesis owing to their numerous benefits such as high stability, facile separation by external magnetic field, easy preparation and functionalization, and environmental benignity, as well as high surface area providing highly active sites on the particle surface and high loading capacity. [17] However, these nanoparticles suffer from difficult separation from the reaction mixtures by conventional separation methods such as filtration due to their nanometer scale (especially below 100 nm).…”

“…To overcome this drawback, considerable developments have been made on the synthesis and use of magnetic nanoparticles (MNPs) as excellent supports for various catalysts. [18][19][20][21][22][23][24][25][26][27] Magnetic nanoparticles (MNPs) have recently received considerable attention both as solid support materials for a variety of homogeneous catalysts and as nanocatalysts in organic synthesis owing to their numerous benefits such as high stability, facile separation by external magnetic field, easy preparation and functionalization, and environmental benignity, as well as high surface area providing highly active sites on the particle surface and high loading capacity. [28][29][30] Easy magnetic separation of the MNPs-supported catalysts from the reaction mixtures enables convenient purification avoiding expensive centrifugation or conventional filtration methods.…”