Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.5755/j02.ms.28473

Ключевые слова: cationite, water hardness, silver nanoparticle, ion-exchange, water softening

Аннотация: Cation exchange resins are widely used for water softening and demineralization all over the world. Deposition, metabolism, and growth of bacteria and fungi on the resin beads cause capacity and performance losses, especially during repeated use in cyclic and long-term operations. Over the last decades, modification of different materials by silver nanoparticles (AgNPs) has demonstrated to present significant opportunities in mitigating biofouling problems. The paper deals with a novel facile technique of introducing silver colloids (AgC) into cation exchange resin, providing the formation of silver micro-and nano-inclusions on the cation resin beads. The scanning electron microscope (SEM) measurements have confirmed a spherical shape and uniform distribution of AgC (50 - 1000 nm) on the surface of the resin. To evaluate the antibacterial and fungicidal properties of AgC on the cation resin beads, we have used Aureobasidium sp., Penicillium sp., and Staphylococcus aureus cultures. AgC coating has proved to efficiently prevent bacteria/biofilm growth on the cation resin beads and thereby significantly increase the service life of the cation exchange resin, especially in hot climatic conditions. Possible antibiofouling mechanisms of the modified nanocomposite cationite have been discussed. Since 2020, the modified silver-containing cationite has been successfully utilized for water softening systems of boiler equipment in Uzbekistan, demonstrating the suitability of the suggested facile coating technique for reducing fouling of cation-exchange resin. Cation exchange resins are widely used for water softening and demineralization all over the world. Deposition, metabolism, and growth of bacteria and fungi on the resin beads cause capacity and performance losses, especially during repeated use in cyclic and long-term operations. Over the last decades, modification of different materials by silver nanoparticles (AgNPs) has demonstrated to present significant opportunities in mitigating biofouling problems. The paper deals with a novel facile technique of introducing silver colloids (AgC) into cation exchange resin, providing the formation of silver micro-and nano-inclusions on the cation resin beads. The scanning electron microscope (SEM) measurements have confirmed a spherical shape and uniform distribution of AgC (50 – 1000 nm) on the surface of the resin. To evaluate the antibacterial and fungicidal properties of AgC on the cation resin beads, we have used Aureobasidium sp., Penicillium sp., and Staphylococcus aureus cultures. AgC coating has proved to efficiently prevent bacteria/biofilm growth on the cation resin beads and thereby significantly increase the service life of the cation exchange resin, especially in hot climatic conditions. Possible antibiofouling mechanisms of the modified nanocomposite cationite have been discussed. Since 2020, the modified silver-containing cationite has been successfully utilized for water softening systems of boiler equipment in Uzbekistan, demonstrating the suitability of the suggested facile coating technique for reducing fouling of cation-exchange resin. © Khaydarov et al. 2022 International License (htt.

Журнал: MATERIALS SCIENCE-MEDZIAGOTYRA

Выпуск журнала: Vol. 28, Is. 1

Номера страниц: 89-92

ISSN журнала: 13921320

Место издания: KAUNAS

Издатель: KAUNAS UNIV TECH

• Khaydarov Renat (Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan)
• Abdukhakimov Murodjon (Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan)
• Garipov Ilnur (Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan)
• Sadikov Ilkham (Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan)
• Krishnamurthy Praveen Thaggikuppe (JSS Coll Pharm, Off Campus JSS, Ootacamund, India)
• Evgrafova Svetlana (Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, 79 Svobodny Ave, Krasnoyarsk 660041, Russia)

• Web of Science Core Collection
• Scopus
• Ядро РИНЦ (eLIBRARY.RU)