Green Nanocatalyst-Palladium Nanoparticles Inside Polymer Matrix Make Catalyst To Retain And Recycle

Catalysts have excellent green chemistry which is based on metal.Theoretically,Catalysts were reusable since they compel without consuming in the chemical reactions. But in actuality,recovering of all catalyst at the ending of a certain reaction is very difficult, so it is slowly lost after finishing of reaction. Now, by the use of green chemistry approach we can retain, retrieve and reuse metal catalysts by trapping them inside a self-assembled polymer matrix.This is the longer lasting chemical catalysts.

Green Nanocatalyst-Palladium nanoparticles inside polymer matrix make catalysts easier to retain and recycle

Green Nanocatalyst-Palladium nanoparticles inside polymer matrix make catalyst to retain and recycleMetal catalyst recoverable at the end of a reaction by simple filtration is done by attaching metal catalysts to an insoluble polymer support. Conventionally, there is trend of attaching a metal catalyst to an insoluble polymer resin. But, the metals were invariably leached out of the polymer after some time. Hence catalysts were slowly lost after the chemical reaction is over.

Green Chemistry scientist approached differently, they integrated the metal into the polymer matrix which can trap metal more efficiently. Researchers started this by soluble polymer precursor instead of an insoluble resin. The insoluble resin contains an imidazole units, which is very efficient chemical structure well-known for binding strongly with metals such as palladium. An imidazole units have to self-assemble around atoms of the metal only after adding the palladium .So an insoluble composite material is formed .All this process is called "molecular convolution".

Scanning electron microscopy (SEM) result shows that final polymer contains palladium globules having a diameter of 100-1,000 nanometers which aggregated into a highly porous structure reminiscent of a tiny bathroom sponge. Moreover this insoluble material like a sponge has an ability to simply capture substrates and reactants from the solution. Finally reaction is carried out with metal species embedded in the sponge.

By the use of green chemistry we can embed palladium nanoparticles inside a self-assembled polymer matrix which makes catalysts easier to retain and recycle catalysts. Eventually this will provide a safe and highly efficient chemical process. Moreover in the future this method is accepted by chemical industry people for various industrial chemical processes.

You can find more information on this long lasting green nanocatalyst in the research paper published by Shaheen Sarkar called "A highly active and reusable self-assembled poly(imidazole/palladium) catalyst: allylic arylation/alkenylation" in "Angewandte Chemie International Edition 50" journal published in 2011

Finally I would say this highly active and reusable self-assembled poly(imidazole/palladium) catalyst would provide a new hope to get 100% reusable/recycled catalyst. i.e longer lasting chemical catalyst.

Related Articles

Green Buildings for sustainability Of human Life

Green Buildings do not harm to environment and it is uses all the resources efficiently. The concept of green building arises from energy crisis and environment pollution concern. The main concept of green building is to use energy, water efficiently and reduce waste and pollution. This resource contain some information about green buildings and some major tips to make your home green(Eco friendly).

World Record In Cascade Synthesis By Green Chemistry- Centrocountins That Inhibit Amitosis In Cancer

Research scientist in Max Planck Institute of Molecular Physiology had developed longest reaction cascade known up to now which holds world record in cascade length.They done cascade reaction synthesis of biologically active substances called "Centrocountin" which are the complex molecules that interfere in the cell division activity and rapidly tumors cells were die.Ultimately Clean/Green Technology related to chemistry gives better approach to produce Centrocountins that inhibit cancer cells to multiply.

More articles: Green Technology


No responses found. Be the first to comment...

  • Do not include your name, "with regards" etc in the comment. Write detailed comment, relevant to the topic.
  • No HTML formatting and links to other web sites are allowed.
  • This is a strictly moderated site. Absolutely no spam allowed.
  • Name: