Ag-Containing Carbon Nanocomposites: Physico-Chemical Properties and Antimicrobial Activity

Mariia Galaburda (), Malgorzata Zienkiewicz-Strzalka, Magdalena Blachnio (), Viktor Bogatyrov, Jolanta Kutkowska, Adam Choma and Anna Derylo-Marczewska
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Mariia Galaburda: Department of Physical Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University, 3, Sq. Maria Curie-Sklodowska, 20-031 Lublin, Poland
Malgorzata Zienkiewicz-Strzalka: Department of Physical Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University, 3, Sq. Maria Curie-Sklodowska, 20-031 Lublin, Poland
Magdalena Blachnio: Department of Physical Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University, 3, Sq. Maria Curie-Sklodowska, 20-031 Lublin, Poland
Viktor Bogatyrov: Chuiko Institute of Surface Chemistry, 17 General Naumov Str., 03164 Kyiv, Ukraine
Jolanta Kutkowska: Department of Genetics and Microbiology, Maria Curie-Sklodowska University, 19 Akademicka Str., 20-033 Lublin, Poland
Adam Choma: Department of Genetics and Microbiology, Maria Curie-Sklodowska University, 19 Akademicka Str., 20-033 Lublin, Poland
Anna Derylo-Marczewska: Department of Physical Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University, 3, Sq. Maria Curie-Sklodowska, 20-031 Lublin, Poland

Sustainability, 2023, vol. 15, issue 24, 1-20

Abstract: The subject of the present work is the synthesis and analysis of the structural and morphological properties of Ag-containing carbon composites and the investigation of their practical application in water purification and disinfection. A series of composites were synthesized by carbonization of resorcinol–formaldehyde polymers filled with Ag-containing fumed silica under an inert atmosphere at 800 °C. The as-synthesized micro- and mesoporous carbon composites were characterized by their specific surface area of 466–529 m 2 /g. The suitability of the composites for flow-through filters was evaluated by kinetic studies on the adsorption of 4-chlorophenol. The composite with the highest amount of metallic nanophase showed the most effective kinetics with a rate constant (log k) and half-life (t 0.5 ) of −2.07 and 81 min, respectively. The antimicrobial susceptibility was determined against Gram-positive ( Staphylococcus aureus ATCC 25923) and Gram-negative strains ( Escherichia coli ATCC 25922, Klebsiella pneumoniae ATCC 700603, Pseudomonas aeruginosa ATCC 27853, and Acinetobacter baumannii ATCC 19606). The zones of bacterial growth inhibition correlated with the silver nanoparticle content and were the lowest for RFC-02 (10–12 mm) and the highest for the RFC-1 composite (15–16 mm), resulting from the increase in number of evenly distributed small Ag nanoparticles (3–5 nm) in the samples.

Keywords: carbon sorbents; biocidal properties; antimicrobial activity; silver nanoparticles; fumed silica; mechanochemical method (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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