Green Nanocatalyst Research Articles

Efficient one-pot synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles using SBA-Pr-SO3H as a green nano catalyst

Sulfonic acid functionalized SBA-15 nanoporous material (SBA-Pr-SO3H) with a pore size of 6nm was found to be a green and effective solid acid catalyst in the one-pot synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles under solvent-free conditions. SBA-Pr-SO3H was proved to be a recyclable, green, and highly efficient catalyst which could be easily handled, recovered, and reused several times without significant loss of reactivity.

Synthesis of green nanocatalysts and industrially important green reactions

There is a growing interest in applying green chemistry for nanocatalysis applications. On the basis of a Scifinder Scholar search, the field of applying green chemistry to catalysis with nanoparticles has undergone an explosive growth from year 2002 to present. It can be seen that green chemistry applied to nanocatalysis is a relatively hot area with much room for growth. I discuss several review articles written about the use of green nanocatalysts as well as green reactions. I discuss studies involving the synthesis of green nanocatalysts and application of metal nanocatalysts in green reactions. I have organized the discussion of green nanocatalysts by the type of nanoparticles that are synthesized and used as catalysts. I have organized discussions of green reactions by the type of green reaction that is being conducted. Overall, our review article discusses developments in new types of green nanocatalysts as well as developments in green catalytic reactions.

Synthesis and characterization of novel nanocomposite, anatase sandwich type polyoxometalate, as a reusable and green nano catalyst in oxidation desulfurization of simulated gas oil

(Bu4N)7H3[P2W18Cd4(Br)2O68]–TiO2 nanocomposite have been synthesized first by reaction of A-β-Na8HPW9O34 with cadmium nitrate and next condensation with titanium tetraisopropoxide at 100 °C via sol–gel method under oil-bath condition. The materials characterized by 113Cd NMR, 31P NMR, XRD, TEM and UV–vis techniques. The crushed nano leaf of anatase phase is 20 nm in nature and fixing of (Bu4N)7H3[P2W18Cd4(Br)2O68] decreases its size. As seen in TEM image, the nano particles of (Bu4N)7H3[P2W18Cd4(Br)2O68]–TiO2 are small with a size of about 10 nm. This anatase nanocomposite polyoxometalate was shown be able to oxidative desulfurization of simulated gas oil with high yield.

Contents digest

Heterocyclic chemistry is the growing field of the organic chemistry. Various heterocyclic compounds are synthesized by numerous methods. These heterocyclic compounds have wide range of biological activity. These compounds are synthesized by various methods involving various homogenous catalysts, heterogeneous catalyst, which are hazardous catalyst and toxic chemicals. To overcome this, we use green methods such as environmentally caring routes to frequent materials. Green nano catalyst derived from plant Polyzygus Tuberosus are used for synthesis Benzimidazole derivatives.