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http://dx.doi.org/10.5012/bkcs.2014.35.1.76

Influence of Inorganic Ions and pH on the Photodegradation of 1-Methylimidazole-2-thiol with TiO2 Photocatalyst Based on Magnetic Multi-walled Carbon Nanotubes  

Jiang, Yinhua (School of Chemistry & Chemical Engineering, Jiangsu University)
Luo, Yingying (School of Chemistry & Chemical Engineering, Jiangsu University)
Lu, Ziyang (School of the Environment, Jiangsu University)
Huo, Pengwei (School of Chemistry & Chemical Engineering, Jiangsu University)
Xing, Weinan (School of Chemistry & Chemical Engineering, Jiangsu University)
He, Ming (School of Chemistry & Chemical Engineering, Jiangsu University)
Li, Jiqin (School of Chemistry & Chemical Engineering, Jiangsu University)
Yan, Yongsheng (School of Chemistry & Chemical Engineering, Jiangsu University)
Publication Information
Bulletin of the Korean Chemical Society / v.35, no.1, 2014 , pp. 76-82 More about this Journal
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 ($TiO_2$) 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 $TiO_2$/$Fe_3O_4$/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.
Keywords
1-Methylimidazole-2-thiol; Inorganic ions; Magnetic material; Multi-walled carbon nanotubes; Photodegradation;
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