Excellent Cooperation between Carboxyl-Substituted Porphyrins, k-Carrageenan and AuNPs for Extended Application in CO2 Capture and Manganese Ion Detection

Epuran, Camelia; Fratilescu, Ion; Macsim, Ana‐Maria; Lascu, Anca; Ianăși, Cătălin; Bîrdeanu, Mihaela; Fagadar‐Cosma, Eugenia

doi:10.3390/chemosensors10040133

Cited by 5 publications

(13 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A gold colloidal solution was prepared by an adapted method [ 66 , 67 ] starting with 0.0455 g (0.155 mmol) tetrachloroauric acid trihydrate HAuCl 4 × 3H 2 O dissolved in 151.06 mL distilled water. The solution was brought to reflux and then 8.75 mL solution of trisodium citrate (c = 1%) was immediately added.…”

Section: Resultsmentioning

confidence: 99%

One A3B Porphyrin Structure—Three Successful Applications

et al. 2022

Self Cite

View full text Add to dashboard Cite

Porphyrins are versatile structures capable of acting in multiple ways. A mixed substituted A3B porphyrin, 5-(3-hydroxy-phenyl)-10,15,20-tris-(3-methoxy-phenyl)-porphyrin and its Pt(II) complex, were synthesised and fully characterised by 1H- and 13C-NMR, TLC, UV-Vis, FT-IR, fluorescence, AFM, TEM and SEM with EDX microscopy, both in organic solvents and in acidic mediums. The pure compounds were used, firstly, as sensitive materials for sensitive and selective optical and fluorescence detection of hydroquinone with the best results in the range 0.039–6.71 µM and a detection limit of 0.013 µM and, secondly, as corrosion inhibitors for carbon–steel (OL) in an acid medium giving a best performance of 88% in the case of coverings with Pt-porphyrin. Finally, the electrocatalytic activity for the hydrogen and oxygen evolution reactions (HER and OER) of the free-base and Pt-metalated A3B porphyrins was evaluated in strong alkaline and acidic electrolyte solutions. The best results were obtained for the electrode modified with the metalated porphyrin, drop-casted on a graphite substrate from an N,N-dimethylformamide solution. In the strong acidic medium, the electrode displayed an HER overpotential of 108 mV, at i = −10 mA/cm2 and a Tafel slope value of 205 mV/dec.

show abstract

Section: Resultsmentioning

confidence: 99%

One A3B Porphyrin Structure—Three Successful Applications

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, when combining the biopolymer with the dye, this leads to composites able to contribute to environmental monitoring while maintaining a sustainable environment. Overall, 1 g of this porphyrin/κ-carrageenan nanocomposite with 0.09 g porphyrin can adsorb 6.97 mmol of CO 2 in ambient conditions [ 116 ]. This outcome is six times worse than the best demonstrated one, i.e., of 42 mmol/L for each g of adsorbent material, a result, however, that was obtained under high temperature (373 K) and pressure (10 bar) [ 116 ].…”

Section: Biopolymers For Co 2 Capturementioning

confidence: 99%

Biopolymeric Nanocomposites for CO2 Capture

Cigala,

De Luca,

Ielo

et al. 2024

Polymers

View full text Add to dashboard Cite

Carbon dioxide (CO2) impacts the greenhouse effect significantly and results in global warming, prompting urgent attention to climate change concerns. In response, CO2 capture has emerged as a crucial process to capture carbon produced in industrial and power processes before its release into the atmosphere. The main aim of CO2 capture is to mitigate the emissions of greenhouse gas and reduce the anthropogenic impact on climate change. Biopolymer nanocomposites offer a promising avenue for CO2 capture due to their renewable nature. These composites consist of biopolymers derived from biological sources and nanofillers like nanoparticles and nanotubes, enhancing the properties of the composite. Various biopolymers like chitosan, cellulose, carrageenan, and others, possessing unique functional groups, can interact with CO2 molecules. Nanofillers are incorporated to improve mechanical, thermal, and sorption properties, with materials such as graphene, carbon nanotubes, and metallic nanoparticles enhancing surface area and porosity. The CO2 capture mechanism within biopolymer nanocomposites involves physical absorption, chemisorption, and physisorption, driven by functional groups like amino and hydroxyl groups in the biopolymer matrix. The integration of nanofillers further boosts CO2 adsorption capacity by increasing surface area and porosity. Numerous advanced materials, including biopolymeric derivatives like cellulose, alginate, and chitosan, are developed for CO2 capture technology, offering accessibility and cost-effectiveness. This semi-systematic literature review focuses on recent studies involving biopolymer-based materials for CO2 capture, providing an overview of composite materials enriched with nanomaterials, specifically based on cellulose, alginate, chitosan, and carrageenan; the choice of these biopolymers is dictated by the lack of a literature perspective focused on a currently relevant topic such as these biorenewable resources in the framework of carbon capture. The production and efficacy of biopolymer-based adsorbents and membranes are examined, shedding light on potential trends in global CO2 capture technology enhancement.

show abstract

“…The five isosbestic points that are displayed on the UV-Vis spectra (at 375 nm, 535 nm, 566 nm, 612 nm, and 630 nm) demonstrate the existence of some intermediate species between the AuNPs and azaporphyrin that affect the entire macrocycle. The synergistic effect between AuNPs and porphyrins generally provides an enlarged absorption domain [62][63][64] that is useful for improving optical applications. In the formed complex, the gold nanoparticles that are negatively surface charged easily interact with the partially positively charged nitrogen atoms of the porphyrin core in the porphyrin base, or with the diprotonated porphyrin that forms in the acid medium.…”

Section: Obtaining and Characterization Of Aunpsmentioning

confidence: 99%

Nanomaterials Based on 2,7,12,17-Tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine Exhibiting Bifunctional Sensitivity for Monitoring Chloramphenicol and Co2+

Fringu,

Anghel,

Fratilescu

et al. 2024

Biomedicines

Self Cite

View full text Add to dashboard Cite

Monitoring antibiotic retention in human body fluids after treatment and controlling heavy metal content in water are important requirements for a healthy society. Therefore, the approach proposed in this study is based on developing new optical sensors using porphyrin or its bifunctional hybrid materials made with AuNPs to accomplish the accurate detection of chloramphenicol and cobalt. To produce the new optical chloramphenicol sensors, 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine (TBAP) was used, both alone in an acid medium and as a hybrid material with AuNPs in a water–DMSO acidified environment. The same hybrid material in the unchanged water–DMSO medium was the sensing material used for Co2+ monitoring. The best results of the hybrid materials were explained by the synergistic effects between the TBAP azaporphyrin and AuNPs. Chloramphenicol was accurately detected in the range of concentrations between 3.58 × 10−6 M and 3.37 × 10−5 M, and the same hybrid material quantified Co2+ in the concentration range of 8.92 × 10−5 M–1.77 × 10−4 M. In addition, we proved that AuNPs can be used for the detection of azaporphyrin (from 2.66 × 10−5 M to 3.29 × 10−4 M), making them a useful tool to monitor porphyrin retention after cancer imaging procedures or in porphyria disease. In conclusion, we harnessed the multifunctionality of this azaporphyrin and of its newly obtained AuNP plasmonic hybrids to detect chloramphenicol and Co2+ quickly, simply, and with high precision.

show abstract

Excellent Cooperation between Carboxyl-Substituted Porphyrins, k-Carrageenan and AuNPs for Extended Application in CO2 Capture and Manganese Ion Detection

Cited by 5 publications

References 39 publications

One A3B Porphyrin Structure—Three Successful Applications

One A3B Porphyrin Structure—Three Successful Applications

Biopolymeric Nanocomposites for CO2 Capture

Nanomaterials Based on 2,7,12,17-Tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine Exhibiting Bifunctional Sensitivity for Monitoring Chloramphenicol and Co2+

Contact Info

Product

Resources

About