دورية أكاديمية
Non-purified commercial multiwalled carbon nanotubes supported on electrospun polyacrylonitrile@polypyrrole nanofibers as photocatalysts for water decontamination.
| العنوان: | Non-purified commercial multiwalled carbon nanotubes supported on electrospun polyacrylonitrile@polypyrrole nanofibers as photocatalysts for water decontamination. |
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| المؤلفون: | Capilli G; Dipartimento di Chimica, Università degli Studi di Torino Via Pietro Giuria 5/7 10125 Torino Italy paola.calza@unito.it., Sartori DR; Instituto de Investigaciones Fisicoquímicas Teoricas y Aplicadas (INIFTA), CCT-La Plata-CONICET, Universidad Nacional de La Plata Diagonal 113 y 64 La Plata Argentina., Gonzalez MC; Instituto de Investigaciones Fisicoquímicas Teoricas y Aplicadas (INIFTA), CCT-La Plata-CONICET, Universidad Nacional de La Plata Diagonal 113 y 64 La Plata Argentina., Laurenti E; Dipartimento di Chimica, Università degli Studi di Torino Via Pietro Giuria 5/7 10125 Torino Italy paola.calza@unito.it., Minero C; Dipartimento di Chimica, Università degli Studi di Torino Via Pietro Giuria 5/7 10125 Torino Italy paola.calza@unito.it., Calza P; Dipartimento di Chimica, Università degli Studi di Torino Via Pietro Giuria 5/7 10125 Torino Italy paola.calza@unito.it. |
| المصدر: | RSC advances [RSC Adv] 2021 Mar 08; Vol. 11 (17), pp. 9911-9920. Date of Electronic Publication: 2021 Mar 08 (Print Publication: 2021). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101581657 Publication Model: eCollection Cited Medium: Internet ISSN: 2046-2069 (Electronic) Linking ISSN: 20462069 NLM ISO Abbreviation: RSC Adv Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: Cambridge [England] : Royal Society of Chemistry, [2011]- |
| مستخلص: | We present a photoactive composite material for water decontamination consisting of non-purified commercial multiwalled carbon nanotubes (CNT(NP)s) supported on an electrospun polymeric mat made of core-sheath polyacrylonitrile-polypyrrole nanofibers. This is the first system that specifically exploits the superior photocatalytic activity of CNT(NP)s compared with the purified carbon nanotubes usually employed. A CNT(NP) still contains the catalytic metal oxide nanoparticles (NPs) used for its synthesis, embedded in the nanotube structure. Under UV-visible irradiation, these NPs generate highly reactive ˙OH radicals capable of degrading the organic molecules adsorbed on the nanotube. Photocatalytic tests on the composite material show that CNT(NP)s act mostly as a source of photogenerated charge carriers. The adsorption of target substrates occurs preferentially onto the polypyrrole sheath, which shuttles the reactive carriers from CNT(NP)s to the substrates. In addition, UV-visible irradiation of semiconducting polypyrrole generates radical species that directly react with the adsorbed substrates. All synthetic procedures reported are scalable and sustainable. This mechanically resistant and flexible composite overcomes one of the weakest aspects of water treatments that employ suspended nanocatalysts, namely the expensive and poorly scalable recovery of the catalyst through nanofiltration. All these features are required for large-scale photocatalytic treatments of polluted water. Competing Interests: There are no conflicts of interest to declare. (This journal is © The Royal Society of Chemistry.) |
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| تواريخ الأحداث: | Date Created: 20220415 Latest Revision: 20240404 |
| رمز التحديث: | 20240404 |
| مُعرف محوري في PubMed: | PMC8695461 |
| DOI: | 10.1039/d0ra10930d |
| PMID: | 35423502 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 2046-2069 |
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| DOI: | 10.1039/d0ra10930d |