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Solar-driven photodegradation of ciprofloxacin and E. coli growth inhibition using a Tm3+ upconverting nanoparticle-based polymer composite

Solar-driven photocatalysis is of great interest in terms of a sustainable use of energy and its application in wastewater treatment. The UV light-driven photogeneration of H2O2 by solar irradiation is an advanced strategy for the treatment of bacteria and recalcitrant pollutants in wastewater, but suffers from low efficiencies. In this work, a solar-driven multifunctional nanocomposite consisting of Tm3+ upconverting nanoparticles, poly(vinyl alcohol), poly(acrylic acid) and hydroxylated sulfonated poly(ether ether ketone) was prepared. The components were crosslinked via a heating treatment at 170 °C, resulting in a non-leaching porous material. This nanocomposite exhibited excellent adsorption ability (89 % in 150 min) toward a 100 mg/L ciprofloxacin aqueous solution and proved to photodegrade it (50 %) upon 4 h artificial solar irradiation, exploiting photon upconversion processes. Moreover, an 80 % bactericidal effect against E. coli was registered upon sunlight irradiation. Altogether, these results suggest the feasibility of a solar-driven wastewater treatment based on upconverting nanoparticles.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:90987
Date02 May 2024
CreatorsFan, Siyuan, Inkumsah Jnr, Jabez Ebenezer, Trave, Enrico, Gigli, Matteo, Joshi, Tanmaya, Licciardello, Nadia, Sgarzi, Massimo, Cuniberti, Gianaurelio
PublisherElsevier
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text
Rightsinfo:eu-repo/semantics/openAccess
Relation1873-3212, 146877, 10.1016/j.cej.2023.146877, info:eu-repo/grantAgreement/European Commission/H2020 | MSCA-RISE/734381//Immune activity Mapping of Carbon Nanomaterials/CARBO-IMmap, info:eu-repo/grantAgreement/European Commission/H2020 | MSCA-ITN-ETN/813036//Bottom-Up generation of atomicalLy precise syntheTIc 2D MATerials for high performance in energy and Electronic applications – A multi-site innovative training action/ULTIMATE

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