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- 저자 : Yueyue Song (검색결과 1 건)
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Chang Tian,Hui Zhang,Pei Chen,Yueyue Song,Jinyuan Zhang 한국섬유공학회 2022 Fibers and polymers Vol.23 No.10
To efficiently remove pollutants such as dyes, antibiotics and heavy metal ions from wastewater without causingsecond polluting, it is imperative and challenging to prepare the omnipotence photocatalysis materials. In this study, wool/Fe3O4@TiO2/UiO-66 composite was prepared by a facile one-step solvothermal method. The morphology, composition,structure, chemical bonding states, magnetism, specific surface area, and optical properties of the resultant composite weresystematically examined. Experiment results suggested that the specific surface area of the wool/Fe3O4@TiO2/UiO-66increased from 370.48 to 465.06 m2/g when wool particles were incorporated into Fe3O4@TiO2/UiO-66. Both the compositesexhibited the superior photocatalytic degradation and reduction capabilities toward cationic methylene blue (MB) and anionicCongo red (CR) dyes, tetracycline hydrochloride (TC-HCl) and Cr(VI) ions under visible lights. For organic dyes and heavymetal ions, the wool/Fe3O4@TiO2/UiO-66 composite behaved much better than the Fe3O4@TiO2/UiO-66 one, however, itwas contrary for TC-HCl. The magnetic wool/Fe3O4 core imparted the composite with the easily recyclable ability because ofthe ferromagnetic and superparamagnetism behaviors of Fe3O4. The TiO2/UiO-66 hybrid shell endowed the photocatalyticproperty of the composite. The wools had a strong adsorption ability toward MB and CR dyes and Cr(VI) ions. The wool/Fe3O4@TiO2/UiO-66 composite possessed good stability and repeatability to MB photodegradation and Cr(VI)photoreduction. The holes and singlet oxygen radicals were the main reactive species, while the superoxide and hydroxylradicals were also involved.
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