Synthesis of well-dispersed TiO2/CNTs@CoFe2O4 nanocomposites and their photocatalytic properties

Muhammad Sohail; Haoliang Xue; Qingze Jiao; Hansheng Li; Khakemin Khan; Shanshan Wang; Caihong Feng; Yun Zhao

doi:10.1016/j.materresbull.2018.01.017

Synthesis of well-dispersed TiO₂/CNTs@CoFe₂O₄ nanocomposites and their photocatalytic properties

Muhammad Sohail, Haoliang Xue, Qingze Jiao, Hansheng Li, Khakemin Khan, Shanshan Wang, Caihong Feng, Yun Zhao^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

Abstract

In this work, core/shell structured CNTs@CoFe₂O₄ composites were prepared using CVD technique with CoFe₂O₄ microspheres as catalysts. Titanium dioxide (TiO₂) was successfully loaded on the surface of CNTs@CoFe₂O₄ composites to get TiO₂/CNTs@CoFe₂O₄ nanocomposites. As-prepared nanocomposites were examined by scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The results show a successful loading of TiO₂ nanoparticles on CNTs@CoFe₂O₄ composites. The photocatalytic properties of TiO₂/CNTs@CoFe₂O₄ nanocomposites for methylene blue were investigated under UV light irradiation. The degradation rate of methylene blue is 96% for TiO₂/CNTs@CoFe₂O₄ nanocomposites with TiO₂ mass ratio of 68.4%, while it is 71% for pure TiO₂. CNTs play a key role in the charge recombination to enhance the electron hole separation. CoFe₂O₄ is beneficial for the recyclability of the composite catalysts by providing a magnetic field.

Original language	English
Pages (from-to)	83-89
Number of pages	7
Journal	Materials Research Bulletin
Volume	101
DOIs	https://doi.org/10.1016/j.materresbull.2018.01.017
Publication status	Published - May 2018

Keywords

CNTs@CoFeO
Cobalt ferrite microsphere
Nanocomposites
Photocatalysis
TiO Nanoparticles

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10.1016/j.materresbull.2018.01.017

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Sohail, M., Xue, H., Jiao, Q., Li, H., Khan, K., Wang, S., Feng, C., & Zhao, Y. (2018). Synthesis of well-dispersed TiO₂/CNTs@CoFe₂O₄ nanocomposites and their photocatalytic properties. Materials Research Bulletin, 101, 83-89. https://doi.org/10.1016/j.materresbull.2018.01.017

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title = "Synthesis of well-dispersed TiO2/CNTs@CoFe2O4 nanocomposites and their photocatalytic properties",

abstract = "In this work, core/shell structured CNTs@CoFe2O4 composites were prepared using CVD technique with CoFe2O4 microspheres as catalysts. Titanium dioxide (TiO2) was successfully loaded on the surface of CNTs@CoFe2O4 composites to get TiO2/CNTs@CoFe2O4 nanocomposites. As-prepared nanocomposites were examined by scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The results show a successful loading of TiO2 nanoparticles on CNTs@CoFe2O4 composites. The photocatalytic properties of TiO2/CNTs@CoFe2O4 nanocomposites for methylene blue were investigated under UV light irradiation. The degradation rate of methylene blue is 96% for TiO2/CNTs@CoFe2O4 nanocomposites with TiO2 mass ratio of 68.4%, while it is 71% for pure TiO2. CNTs play a key role in the charge recombination to enhance the electron hole separation. CoFe2O4 is beneficial for the recyclability of the composite catalysts by providing a magnetic field.",

keywords = "CNTs@CoFeO, Cobalt ferrite microsphere, Nanocomposites, Photocatalysis, TiO Nanoparticles",

author = "Muhammad Sohail and Haoliang Xue and Qingze Jiao and Hansheng Li and Khakemin Khan and Shanshan Wang and Caihong Feng and Yun Zhao",

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year = "2018",

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AU - Sohail, Muhammad

AU - Xue, Haoliang

AU - Jiao, Qingze

AU - Li, Hansheng

AU - Khan, Khakemin

AU - Wang, Shanshan

AU - Feng, Caihong

AU - Zhao, Yun

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N2 - In this work, core/shell structured CNTs@CoFe2O4 composites were prepared using CVD technique with CoFe2O4 microspheres as catalysts. Titanium dioxide (TiO2) was successfully loaded on the surface of CNTs@CoFe2O4 composites to get TiO2/CNTs@CoFe2O4 nanocomposites. As-prepared nanocomposites were examined by scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The results show a successful loading of TiO2 nanoparticles on CNTs@CoFe2O4 composites. The photocatalytic properties of TiO2/CNTs@CoFe2O4 nanocomposites for methylene blue were investigated under UV light irradiation. The degradation rate of methylene blue is 96% for TiO2/CNTs@CoFe2O4 nanocomposites with TiO2 mass ratio of 68.4%, while it is 71% for pure TiO2. CNTs play a key role in the charge recombination to enhance the electron hole separation. CoFe2O4 is beneficial for the recyclability of the composite catalysts by providing a magnetic field.

AB - In this work, core/shell structured CNTs@CoFe2O4 composites were prepared using CVD technique with CoFe2O4 microspheres as catalysts. Titanium dioxide (TiO2) was successfully loaded on the surface of CNTs@CoFe2O4 composites to get TiO2/CNTs@CoFe2O4 nanocomposites. As-prepared nanocomposites were examined by scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The results show a successful loading of TiO2 nanoparticles on CNTs@CoFe2O4 composites. The photocatalytic properties of TiO2/CNTs@CoFe2O4 nanocomposites for methylene blue were investigated under UV light irradiation. The degradation rate of methylene blue is 96% for TiO2/CNTs@CoFe2O4 nanocomposites with TiO2 mass ratio of 68.4%, while it is 71% for pure TiO2. CNTs play a key role in the charge recombination to enhance the electron hole separation. CoFe2O4 is beneficial for the recyclability of the composite catalysts by providing a magnetic field.

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KW - Cobalt ferrite microsphere

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KW - Photocatalysis

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Synthesis of well-dispersed TiO₂/CNTs@CoFe₂O₄ nanocomposites and their photocatalytic properties

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