Nanoparticle supported, magnetically separable manganese porphyrin as an efficient retrievable nanocatalyst in hydrocarbon oxidation reactions

Abstract

Magnetically separable manganese porphyrin was prepared by immobilizing on functionalized magnetic nanoparticles via the amino propyl linkage and used as an efficient retrievable nanocatalyst in hydrocarbon oxidation reactions.

Fibroin‐functionalized magnetic carbon nanotube as a green support for anchoring silver nanoparticles as a biocatalyst for A3 coupling reaction

“…Magnetite Fe 3 O 4 NPs have received significant attention as prominent catalyst supports because of their interesting features such as chemical and thermal stability, large surface area, low cost, low toxicity, and easy separation from reaction medium with an external magnet. Moreover, magnetic separation is a green procedure that allows to save time, energy, and solvents and paves the way to the industrial application of these nanostructured catalysts . The combination of CNT–fibroin with magnetic NPs improves its properties and leads to easy catalyst separation without the need for high‐speed centrifugation, filtration, or other tedious work‐up processes.…”

“…Moreover, magnetic separation is a green procedure that allows to save time, energy, and solvents and paves the way to the industrial application of these nanostructured catalysts. [38][39][40][41][42] The combination of CNTfibroin with magnetic NPs improves its properties and leads to easy catalyst separation without the need for high-speed centrifugation, filtration, or other tedious work-up processes.…”

Synthesis and characterization of molybdenum (VI) complex immobilized on polymeric Schiff base‐coated magnetic nanoparticles as an efficient and retrievable nanocatalyst in olefin epoxidation reactions

“…All these features made magnetic nanoparticles a promising alternative to other heterogeneous catalysts most of which require a tedious work‐up procedures to recover the catalyst . The introduction of functional organic groups on magnetic nanoparticles' surfaces followed by supporting the catalyst is an elegant way to bridge the gap between heterogeneous and homogeneous catalysis . In this manner, functionalized polymer‐based magnetic nanoparticles are gaining much attention compared MNPs modified by small organic molecules, because of the presence of abundant active sites and large surface area.…”

“…[35][36][37] The introduction of functional organic groups on magnetic nanoparticles' surfaces followed by supporting the catalyst is an elegant way to bridge the gap between heterogeneous and homogeneous catalysis. [38,39] In this manner, functionalized polymer-based magnetic nanoparticles are gaining much attention compared MNPs modified by small organic molecules, because of the presence of abundant active sites and large surface area. Polymeric functionalization obtains the advantage that more catalytic units can be grafted to the surface of magnetic nanoparticles and thus provides a higher catalyst loading.…”

Mg–Al layered double hydroxide intercalated with manganese(III) 5,10,15,20‐tetrakis(4‐benzoate)porphyrinacetate as a highly reusable catalyst for epoxidation

“…Over the last three decades, many efficient catalytic methodologies have been developed for the synthesis of structurally diverse epoxides . Manganese porphyrins have long been known as valuable biomimetic catalysts for oxidation of both unsaturated and saturated hydrocarbons because of their high selectivity and efficiency; in particular, epoxidation of olefins with manganese porphyrins has been extensively studied . Homogeneous catalytic media suffer from lack of recyclability, and to overcome such a problem heterogenization of such systems would be of help …”