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A ternary TiO2/WO3/graphene nanocomposite adsorbent: facile preparation and efficient removal of Rhodamine B

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Abstract

Ternary TiO2/WO3/graphene (TWG) nanocomposites were prepared by a facile salt-ultrasonic assisted hydrothermal method. The products were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and nitrogen adsorption-desorption. Both anatase TiO2 and orthorhombic WO3 formed in the nanocomposites, along with a highly disordered overlay of individual graphene nanosheets. Polyhedral and spherical TiO2 and WO3 nanoparticles of uniform size 10–30 nm were densely anchored to the graphene sheets. The maximum specific surface area of the products was 144.59 m2·g−1. The products showed clear abilities for the removal of Rhodamine B in the absence of illumination. Furthermore, the adsorption activity of the products exhibited only a slight decrease after three successive cycles. The results demonstrate that the ternary nanocomposites could be used as a high-efficiency adsorbent for the removal of environmental contaminants.

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Authors and Affiliations

  1. Department of Chemistry and Chemical Engineering, Jining University, Qufu, 273155, China

    Yong-qiang Zhang, Chong-dian Si, Guang-jun Liu & Hong-tao Gao

  2. State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, China

    Xiao-hui Li, Jie Lü & Hong-tao Gao

  3. North China Sea Branch of State Oceanic Administration, Qingdao, 266033, China

    Pi-bo Wang

Authors
  1. Yong-qiang Zhang
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  2. Xiao-hui Li
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  3. Jie Lü
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  4. Chong-dian Si
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  5. Guang-jun Liu
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  6. Hong-tao Gao
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  7. Pi-bo Wang
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Correspondence to Guang-jun Liu or Hong-tao Gao.

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Zhang, Yq., Li, Xh., Lü, J. et al. A ternary TiO2/WO3/graphene nanocomposite adsorbent: facile preparation and efficient removal of Rhodamine B. Int J Miner Metall Mater 21, 813–819 (2014). https://doi.org/10.1007/s12613-014-0975-9

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  • DOI: https://doi.org/10.1007/s12613-014-0975-9

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