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Novel fibrous Ag(NP) decorated clay-polymer composite: Implications in water purification contaminated with predominant micro-pollutants and bacteria.
Goswami, Swagata; Dutta, Dhiraj; Pandey, Shreekant; Chattopadhyay, Pronobesh; Dubey, Rama; Tiwari, Diwakar.
Afiliación
  • Goswami S; Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, 796004, India.
  • Dutta D; DRL, Post Bag No 02, Tezpur, Assam, 784001, India.
  • Pandey S; Department of Biotechnology, Vinoba Bhave University, Hazaribagh, Jharkhand, 825301, India.
  • Chattopadhyay P; DRL, Post Bag No 02, Tezpur, Assam, 784001, India.
  • Lalhmunsiama; Department of Industrial Chemistry, School of Physical Sciences, Mizoram University, Aizawl, 796004, India.
  • Dubey R; DRL, Post Bag No 02, Tezpur, Assam, 784001, India.
  • Tiwari D; Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, 796004, India. Electronic address: diw_tiwari@yahoo.com.
J Environ Manage ; 359: 121063, 2024 May.
Article en En | MEDLINE | ID: mdl-38704955
ABSTRACT
Due to the potential harm caused by emerging micro-pollutants to living organisms, contaminating water supplies by micro-pollutants like EDCs, pharmaceuticals, and microorganisms has become a concern in many countries. Considering both microbiological and micro-pollutant exposure risks associated with water use for agricultural/or household purposes, it is imperative to create a strategy for improving pollutant removal from treated wastewater that is both effective and affordable. Natural clay minerals efficiently remove contaminants from wastewater, though the pristine clay has less affinity to several organic pollutants. Hydrophilic polymers, viz., poly(ethylene glycol) (PEG), improve the dispersion of particles, flocculation processes, and surface properties. In this study, PEG grafted with attapulgite, thereby providing a high-specific surface-area, mesoporous materials for the adsorption of micro-pollutants like ciprofloxacin (CIP) and 17α-ethinylestradiol (EE2) at high rates. A gentle washing process regenerates the clay-polymer material several times with no performance loss, and the natural water implications show fair applicability of solid in decontaminating the CIP and EE2 in an aqueous medium. Further, greenly synthesized silver nanoparticles in situ disperse with the clay polymer efficiently remove the gram-positive and gram-negative bacterium viz., Bacillus subtilis, and Pseudomonas aeruginosa, which are commonly persistent in aquatic environments. The clay polymer outperformed a modified clay composite to eliminate microorganisms and organic micro-pollutants in significant quantities quickly. These results clearly show the importance of fibrous clay-polymer composite for water purification technologies.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polímeros / Plata / Arcilla / Purificación del Agua Idioma: En Revista: J Environ Manage Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polímeros / Plata / Arcilla / Purificación del Agua Idioma: En Revista: J Environ Manage Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido