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Magnetically separable functionalized TiO2 nanotubes: Synthesis, characterization, and photocatalysis

Publication date:

1 April 2018


Source:Journal of Photochemistry and Photobiology A: Chemistry, Volume 356

Author(s): Chaofan Ding, Yuanling Sun, Yanna Lin, Weiyan Sun, Hao Liu, Xiaodong Zhu, Yuxue Dai, Chuannan Luo

Magnetic chitosan/β-cyclodextrin and Ag-titania nanotubes (Ag-MTCDS) as photocatalyst were synthesized by crosslinking MCDS and Ag-TNTS. The characteristic results of X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), Energy Dispersive Spectrometer (EDS), Transmission electron microscopy (TEM) and Scannig electron microscopy (SEM) showed that Ag-MTCDS were successfully prepared with good magnetic responsiveness and large surface area. They were used for the photocatalytic degradation of chrome black T (CBT) from simulated wastewater with a fast solid-liquid separation in the presence of external magnetic field. The optimum catalytic conditions of Ag-MTCDS such as pH, catalyst concentration, initial dye concentration, illumination time and reused times were explored. The obtained results indicated that the loaded of Ag significantly enhances the photocatalytic degradation efficiency of CBT. This work provides a simple but effective approach by combing magnetic chitosan/β-cyclodextrin with TiO2 nanotubes synthesized via the crosslinking method for chrome black T degradation.
Graphical abstract




Authors:   Author(s): Chaofan Ding, Yuanling Sun, Yanna Lin, Weiyan Sun, Hao Liu, Xiaodong Zhu, Yuxue Dai, Chuannan Luo
Journal:   Journal of Photochemistry and Photobiology A: Chemistry
Volume:   356
Year:   2018
Pages:   123
DOI:   10.1016/j.jphotochem.2017.12.031
Publication date:   09-Jan-2018
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