Magnetically Recyclable Wool/Fe3O4@TiO2/UiO-66 Core-Shell Structured Composite for Photocatalytic Removal of Methylene Blue, Congo Red, Tetracycline Hydrochloride and Cr(VI) Ions 


Vol. 23,  No. 10, pp. 2780-2797, Oct.  2022
10.1007/s12221-022-0225-0


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  Abstract

To efficiently remove pollutants such as dyes, antibiotics and heavy metal ions from wastewater without causing second 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 were systematically examined. Experiment results suggested that the specific surface area of the wool/Fe3O4@TiO2/UiO-66 increased from 370.48 to 465.06 m2/g when wool particles were incorporated into Fe3O4@TiO2/UiO-66. Both the composites exhibited the superior photocatalytic degradation and reduction capabilities toward cationic methylene blue (MB) and anionic Congo red (CR) dyes, tetracycline hydrochloride (TC-HCl) and Cr(VI) ions under visible lights. For organic dyes and heavy metal ions, the wool/Fe3O4@TiO2/UiO-66 composite behaved much better than the Fe3O4@TiO2/UiO-66 one, however, it was contrary for TC-HCl. The magnetic wool/Fe3O4 core imparted the composite with the easily recyclable ability because of the ferromagnetic and superparamagnetism behaviors of Fe3O4. The TiO2/UiO-66 hybrid shell endowed the photocatalytic property 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 hydroxyl radicals were also involved.

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  Cite this article

[IEEE Style]

C. Tian, H. Zhang, P. Chen, Y. Song, J. Zhang, "Magnetically Recyclable Wool/Fe3O4@TiO2/UiO-66 Core-Shell Structured Composite for Photocatalytic Removal of Methylene Blue, Congo Red, Tetracycline Hydrochloride and Cr(VI) Ions," Fibers and Polymers, vol. 23, no. 10, pp. 2780-2797, 2022. DOI: 10.1007/s12221-022-0225-0.

[ACM Style]

Chang Tian, Hui Zhang, Pei Chen, Yueyue Song, and Jinyuan Zhang. 2022. Magnetically Recyclable Wool/Fe3O4@TiO2/UiO-66 Core-Shell Structured Composite for Photocatalytic Removal of Methylene Blue, Congo Red, Tetracycline Hydrochloride and Cr(VI) Ions. Fibers and Polymers, 23, 10, (2022), 2780-2797. DOI: 10.1007/s12221-022-0225-0.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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