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Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light

The fabrication of controlled supramolecular nanostructures via self-assembly of protoporphyrin IX (PPIX) was studied with enantiomerically pure l-arginine and d-arginine, and we have shown that stoichiometry controlled the morphology formed. The nanostructure morphology was mainly influenced by the...

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Autores principales: Aljabri, Mahmood D., Gosavi, Nilesh M., Jones, Lathe A., Morajkar, Pranay P., La, Duong D., Bhosale, Sheshanath V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891641/
https://www.ncbi.nlm.nih.gov/pubmed/31752075
http://dx.doi.org/10.3390/molecules24224172
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author Aljabri, Mahmood D.
Gosavi, Nilesh M.
Jones, Lathe A.
Morajkar, Pranay P.
La, Duong D.
Bhosale, Sheshanath V.
author_facet Aljabri, Mahmood D.
Gosavi, Nilesh M.
Jones, Lathe A.
Morajkar, Pranay P.
La, Duong D.
Bhosale, Sheshanath V.
author_sort Aljabri, Mahmood D.
collection PubMed
description The fabrication of controlled supramolecular nanostructures via self-assembly of protoporphyrin IX (PPIX) was studied with enantiomerically pure l-arginine and d-arginine, and we have shown that stoichiometry controlled the morphology formed. The nanostructure morphology was mainly influenced by the delicate balance of π-π stacking interactions between PPIX cores, as well as H-bonding between the deprotonated acidic head group of PPIX with the guanidine head group of arginine. PPIX self-assembled with l-/d-arginine to create rose-like nanoflower structures for four equivalents of arginine that were 5–10 μm in length and 1–4 μm diameter. We employed UV-vis, fluorescence spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), dynamic light scattering (DLS) and Fourier transform infrared spectroscopy (FT-IR) techniques to characterize the resulting self-assembled nanostructures. Furthermore, we investigated the catalytic activity of PPIX and arginine co-assembled materials. The fabricated PPIX–arginine nanostructure showed high enhancement of photocatalytic activity through degradation of rhodamine B (RhB) with a decrease in dye concentration of around 78–80% under simulated visible radiation.
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spelling pubmed-68916412019-12-12 Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light Aljabri, Mahmood D. Gosavi, Nilesh M. Jones, Lathe A. Morajkar, Pranay P. La, Duong D. Bhosale, Sheshanath V. Molecules Article The fabrication of controlled supramolecular nanostructures via self-assembly of protoporphyrin IX (PPIX) was studied with enantiomerically pure l-arginine and d-arginine, and we have shown that stoichiometry controlled the morphology formed. The nanostructure morphology was mainly influenced by the delicate balance of π-π stacking interactions between PPIX cores, as well as H-bonding between the deprotonated acidic head group of PPIX with the guanidine head group of arginine. PPIX self-assembled with l-/d-arginine to create rose-like nanoflower structures for four equivalents of arginine that were 5–10 μm in length and 1–4 μm diameter. We employed UV-vis, fluorescence spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), dynamic light scattering (DLS) and Fourier transform infrared spectroscopy (FT-IR) techniques to characterize the resulting self-assembled nanostructures. Furthermore, we investigated the catalytic activity of PPIX and arginine co-assembled materials. The fabricated PPIX–arginine nanostructure showed high enhancement of photocatalytic activity through degradation of rhodamine B (RhB) with a decrease in dye concentration of around 78–80% under simulated visible radiation. MDPI 2019-11-18 /pmc/articles/PMC6891641/ /pubmed/31752075 http://dx.doi.org/10.3390/molecules24224172 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Aljabri, Mahmood D.
Gosavi, Nilesh M.
Jones, Lathe A.
Morajkar, Pranay P.
La, Duong D.
Bhosale, Sheshanath V.
Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light
title Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light
title_full Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light
title_fullStr Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light
title_full_unstemmed Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light
title_short Arginine-Induced Self-Assembly of Protoporphyrin to Obtain Effective Photocatalysts in Aqueous Media Under Visible Light
title_sort arginine-induced self-assembly of protoporphyrin to obtain effective photocatalysts in aqueous media under visible light
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891641/
https://www.ncbi.nlm.nih.gov/pubmed/31752075
http://dx.doi.org/10.3390/molecules24224172
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