Preparation and characterization of silver nanoparticle-porphyrazine composites

Altuǧ Mert Sevim, Ayşe Selda Keskin, Ahmet Gül*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A one step chemical reduction process was used for the preparation of hydrophilic silver nanoparticles (AgNP) using silver nitrate, sodiumborohydride and polyvinylpyrolidone as stabilizer. In the case of hydrophobic silver nanoparticles reduced silver ions were stabilized with cetyl trimethylammonium bromide (CTAB). The resultant nano particles were characterized by absoption spectra and their interactions with cationic cobalt (QCoPz) and neutral magnesium (MgPz) porphyrazines in water and in organic medium were investigated by using UV-vis spectroscopy and zeta potential techniques. It is confirmed that both metalloporphyrazine molecules interact with silver nanoparticles in an effective manner. The possible arrangement of the porphyrazines on the surfaces of the hydrophilic and hydrophobic AgNPs has been also discussed according to obtained spectroscopic results. These well-characterized novel AgNP-metalloporphyrazine composites are expected to be useful in optical and catalytic applications.

Original languageEnglish
Pages (from-to)928-933
Number of pages6
JournalJournal of Porphyrins and Phthalocyanines
Issue number10
Publication statusPublished - Oct 2013


This work was supported by the Research Fund of the Technical University of Istanbul. AG thanks Turkish Academy of Sciences (TUBA) for partial support.

FundersFunder number
Technical University of Istanbul


    • composite materials
    • nanoparticles
    • porphyrazine
    • silver
    • spectroscopy
    • zeta potential


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