alexa Photodegradation of gaseous acetaldehyde and methylene blue in aqueous solution with titanium dioxide-loaded activated carbon fiber polymer materials and aquatic plant ecotoxicity tests.


Journal of Antivirals & Antiretrovirals

Author(s): Kadirova ZC, Hojamberdiev M, Katsumata K, Isobe T, Matsushita N,

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Abstract TiO2-supported activated carbon felts (TiO2-ACFTs) were prepared by dip coating of felts composed of activated carbon fibers (ACFs) with either polyester fibers (PS-A20) and/or a polyethylene pulp (PE-W15) in a TiO2 aqueous suspension followed by calcination at 250 °C for 1 h. The as-prepared TiO2-ACFTs with 29-35 wt.\% TiO2 were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and N2 adsorption. The TiO2-ACFT(PS-A20) samples with 0 and 29 wt.\% TiO2 were microporous with specific surface areas (S BET) of 996 and 738 m(2)/g, respectively, whereas the TiO2-ACFT(PE-W15) samples with 0 and 35 wt.\% TiO2 were mesoporous with S BET of 826 and 586 m(2)/g, respectively. Adsorption and photocatalytic activity of the as-prepared samples were evaluated by measuring adsorption in the dark and photodegradation of gaseous acetaldehyde (AcH) and methylene blue (MB) in aqueous solution under UV light. The TiO2 loading caused a considerable decrease in the S BET and MB adsorption capacity along with an increase in MB photodegradation and AcH mineralization. Lemna minor was chosen as a representative aquatic plant for ecotoxicity tests measuring detoxification of water obtained from the MB photodegradation reaction with the TiO2-ACFT samples under UV light. This article was published in Environ Sci Pollut Res Int and referenced in Journal of Antivirals & Antiretrovirals

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