Skip to Main Content
 

Global Search Box

 
 
 

ETD Abstract Container

Abstract Header

Facile Size Focusing Synthesis of Silver Nanoparticles Capped with Aliphatic Thiol Ligands

Zaker, Yeakub
http://orcid.org/0000-0002-4192-0984
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1480456850511426

Abstract Details

2016, Master of Science, University of Toledo, Chemistry.
Size control remains a longstanding challenge in the synthesis of silver molecular nanoparticles capped with aliphatic thiol ligands. For example, the silver-glutathione (Ag-SG) system is known to produce >20 different discrete molecular species, therefore isolation of any particular size requires size fractionation of the mixed-size products. It is possible to obtain singular Ag-SG nanoparticle products by attrition, i.e. destroying all but the desired product, but this is a laborious procedure with low yield. Here, a methodology is presented for producing nearly single-sized products of Ag-SG molecular nanoparticles directly, with no post-processing required, with good yield. By studying the consequences of different reaction conditions on the size distribution, the effects of the reduction rate, pH, buffer composition, temperature, time, and precursor solubility could be disentangled. The rate of the reaction was found to have the most significant effect, with slower reaction rates producing small sizes and the narrowest distributions. These results were used to develop a facile method for producing Ag15(SG)11 and Ag32(SG)19 in high yield. In the case of silver-captopril molecular nanoparticles, a facile and high yield (87%) synthetic route was developed for a product that is similar to Ag32(SG)19. Water was used as a solvent and a one-pot direct synthetic reaction was demonstrated in one hour at room temperature (~20 °C) and pH 11.
Terry Bigioni (Committee Chair)
Joseph Schmidt (Committee Member)
Dragan Isailovic (Committee Member)
64 p.
Chemistry; Materials Science; Nanoscience; Nanotechnology; Physical Chemistry

Recommended Citations

Citations

  • Zaker, Y. (2016). Facile Size Focusing Synthesis of Silver Nanoparticles Capped with Aliphatic Thiol Ligands [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1480456850511426

    APA Style (7th edition)

  • Zaker, Yeakub. Facile Size Focusing Synthesis of Silver Nanoparticles Capped with Aliphatic Thiol Ligands. 2016. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1480456850511426.

    MLA Style (8th edition)

  • Zaker, Yeakub. "Facile Size Focusing Synthesis of Silver Nanoparticles Capped with Aliphatic Thiol Ligands." Master's thesis, University of Toledo, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1480456850511426

    Chicago Manual of Style (17th edition)

toledo1480456850511426
4,432
© 2016, all rights reserved.
This open access ETD is published by University of Toledo and OhioLINK.