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Preparation and photodegradation properties of transition metal ion-poly-o-phenylenediamine/TiO sub(2 )/fly-ash cenospheres by ion imprinting technology

Yu, Xiuna ; Gao, Xun ; Lu, Ziyang ; Liu, Xinlin ; Huo, Pengwei ; Liu, Xiaolin ; Wu, Di ; Yan, Yongsheng

RSC advances, 2013-08, Vol.3 (34), p.14807-14813 [Periódico revisado por pares]

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  • Título:
    Preparation and photodegradation properties of transition metal ion-poly-o-phenylenediamine/TiO sub(2 )/fly-ash cenospheres by ion imprinting technology
  • Autor: Yu, Xiuna ; Gao, Xun ; Lu, Ziyang ; Liu, Xinlin ; Huo, Pengwei ; Liu, Xiaolin ; Wu, Di ; Yan, Yongsheng
  • Assuntos: Cenospheres ; Degradation ; Emission analysis ; Inductively coupled plasma ; Photocatalysis ; Spectroscopy ; Tetracyclines ; Titanium dioxide
  • É parte de: RSC advances, 2013-08, Vol.3 (34), p.14807-14813
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    content type line 23
    ObjectType-Feature-2
  • Descrição: Transition metal ions have been immobilized on TiO sub(2)/fly-ash cenospheres (TiO sub(2)/FACs) with poly-o-phenylenediamine (OPD). The as-prepared ion imprinting photocatalyst (M-POPD/TiO sub(2)/FACs) has been characterized by SEM, XRD, FT-IR, UV-vis DRS and ICP-AES. The results demonstrated that the polymer and mental ions existed in the M-POPD/TiO sub(2)/FACs. The photocatalytic activity of M-POPD/TiO sub(2)/FACs was studied by the degradation of tetracycline, oxytetracycline, ciprofloxacin, tetracycline hydrochloride and chloromycetin in simulated wastewater under visible light irradiation. The results showed that the M-POPD/TiO sub(2)/FACs could effectively increase the separation rate of photoelectrons and holes in the cycling system and improve the photocatalytic activity for the degradation of antibiotics in solution. Experimental data showed that the as-prepared M-POPD/TiO sub(2)/FACs were more suitable for degradation of tetracycline (5 mg L super(-1)), and the photodegradation rate could reach 71.7%. In addition, possible formation and photocatalytic mechanisms were proposed.
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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