I am synthesizing nZVI using plant extract.

When plant extract and metal salt are mixed, I am getting precipitate in reaction mixture. What could be the reason? 

Can it be due to high polyphenol content in plant extract, metal salt concentration or the mixing ratio?

Views: 152

Reply to This

Replies to This Discussion

  • Conversation started Wednesday
  • Ekrima Astari

    Dear Mr. Herlekar, I'm a chemistry under grad. student in Jakarta. I've seen your discuscussion you posted in nanopaprika.eu "I am synthesizing nZVI using plant extract. When plant extract and metal salt are mixed, I am getting precipitate in reaction mixture. What could be the reason? Can it be due to high polyphenol content in plant extract, metal salt concentration or the mixing ratio?"

    I am, also synthesizing nZVI using plant extract with mixing ratio polyphenol:Fe-salt = 2:1 and the suspension resulted from tis reaction is quite stable for about 24h. I think the precipitation can be resulted from other phytochemical compound in plant, like the 'sap', and from my experience it can be avoided by drying the plant before extraction. I hope it can help

    What I can't figure is how to separate nanoparticle from its suspension. Please help me ...

    Sincerely

Thanks for your reply...I am already drying the plant material before extraction.

Can you please clarify what is meant by "sap"? (line 8 of your answer)

Nanoparticles from suspension can be separated either by high speed centrifugation or by filtration.

Regards

Mihir

 

Ekrima Astari said:

  • Conversation started Wednesday
  • Ekrima Astari

    Dear Mr. Herlekar, I'm a chemistry under grad. student in Jakarta. I've seen your discuscussion you posted in nanopaprika.eu "I am synthesizing nZVI using plant extract. When plant extract and metal salt are mixed, I am getting precipitate in reaction mixture. What could be the reason? Can it be due to high polyphenol content in plant extract, metal salt concentration or the mixing ratio?"

    I am, also synthesizing nZVI using plant extract with mixing ratio polyphenol:Fe-salt = 2:1 and the suspension resulted from tis reaction is quite stable for about 24h. I think the precipitation can be resulted from other phytochemical compound in plant, like the 'sap', and from my experience it can be avoided by drying the plant before extraction. I hope it can help

    What I can't figure is how to separate nanoparticle from its suspension. Please help me ...

    Sincerely

sap is sticky slime in plants.

Mr. Herlekar, when I XRD-ed the material I syntesized, the XRD result is amorph, without any crystaline peak.

do you know what can cause this thing? Please help, thanks before 

I am Naren working on Iron nanoparticles .I feel the mixing ration matters ..



Naren said:

I am Naren working on Iron nanoparticles .I feel the mixing ration matters ..

Hi Naren,

Thanks for your reply..

Regards

Mihir

Reply to Discussion

RSS

Next partner events of TINC

We are Media Partner of:

Welcome - about us

Welcome! Nanopaprika was cooked up by Hungarian chemistry PhD student in 2007. The main idea was to create something more personal than the other nano networks already on the Internet. Community is open to everyone from post-doctorial researchers and professors to students everywhere.

There is only one important assumption: you have to be interested in nano!

Nanopaprika is always looking for new partners, if you have any idea, contact me at editor@nanopaprika.eu

Dr. András Paszternák, founder of Nanopaprika

Publications by A. Paszternák:

The potential use of cellophane test strips for the quick determination of food colours

pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

Polymeric Honeycombs Decorated by Nickel Nanoparticles

Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template,

Organometallic deposition of ultrasmooth nanoscale Ni film,

Zigzag-shaped nickel nanowires via organometallic template-free route

Surface analytical characterization of passive iron surface modified by alkyl-phosphonic acid layers

Atomic Force Microscopy Studies of Alkyl-Phosphonate SAMs on Mica

Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films

Surface modification of passive iron by alkylphosphonic acid layers

Formation and structure of alkylphosphonic acid layers on passive iron

Structure of the nonionic surfactant triethoxy monooctylether C8E3 adsorbed at the free water surface, as seen from surface tension measurements and Monte Carlo simulations