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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 1
BKCSDE 35(1)
January 20, 2014 
 
Title
 Influence of Inorganic Ions and pH on the Photodegradation of 1-Methylimidazole-2- thiol with TiO2 Photocatalyst Based on Magnetic Multi-walled Carbon Nanotubes
Author
 Yinhua Jiang*, Yingying Luo, Ziyang Lu, Pengwei Huo, Weinan Xing, Ming He, Jiqin Li, Yongsheng Yan
Keywords
 1-Methylimidazole-2-thiol, Inorganic ions, Magnetic material, Multi-walled carbon nanotubes, Photodegradation
Abstract
 1-Methylimidazole-2-thiol, as a kind of mercaptans, is a typical organic pollutant which has not been efficiently removed. In this study, titanium dioxide (TiO2) photocatalyst based on magnetic multi-walled carbon nanotubes (MWCNTs) was synthesized via hydrothermal and sol-gel methods. The as-prepared photocatalyst was extensively characterized by X-ray diffraction (XRD), X-ray energy diffraction spectrum (EDS), transmission electron microscope (TEM), Fourier transform infrared (FT-IR) spectra, UV-Vis diffuse reflectance spectra (UV-vis DRS) and vibrating sample magnetometer (VSM). This photocatalyst of TiO2/Fe3O4/MWCNTs was proved to exhibit high photocatalytic efficiency and the photodegradation rate could reach nearly 82.7% for the degradation of 1-methylimidazole-2-thiol under ultraviolet irradiation. In addition, the results demonstrated that inorganic ions had a negative impact on photodegradation of 1-methylimidazole-2-thiol to varying degrees. Moreover, pH had a great and complex effect on photocatalytic degradation of 1-methylimidazole-2-thiol under ultraviolet irradiation.
Page
 76 - 82
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