<p>Catalytic desulfurization study in concentrated liquid waste of herbal decoctions has attracted more and more attention for meeting the stringent waste water discharge standards but remains a challenge that the catalysts are effectiveness for sulfur-containing organic compound and inorganic compound at the same time. Benzothiophene (BT) was chosen as the simulated compound for sulfur-containing organic, and Na<sub>2</sub>S was chosen as the simulated compound for sulfur-containing inorganic. The high total sulfur removal was achieved by investigating a new kind of framework-substituted Mn-TiNTs catalyst. The desulfurization rate nearly 90% was found in complex concentrated liquid waste of herbal decoctions under the optimum condition. Additionally, the mechanism of oxidative desulfurization over Mn-doped skeleton heteroatom titanium nanotubes was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM).</p>

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Direct hydrothermal synthesis and characterization of framework-substituted Mn-TiNTs for ODS in complex concentrated liquid waste of herbal decoctions

  • Mengxue Gao,
  • Hui Gao,
  • Ruining Yang,
  • Shuxiang Lyu,
  • Yan Jiang,
  • Yue Yao,
  • Qiong Li

摘要

Catalytic desulfurization study in concentrated liquid waste of herbal decoctions has attracted more and more attention for meeting the stringent waste water discharge standards but remains a challenge that the catalysts are effectiveness for sulfur-containing organic compound and inorganic compound at the same time. Benzothiophene (BT) was chosen as the simulated compound for sulfur-containing organic, and Na2S was chosen as the simulated compound for sulfur-containing inorganic. The high total sulfur removal was achieved by investigating a new kind of framework-substituted Mn-TiNTs catalyst. The desulfurization rate nearly 90% was found in complex concentrated liquid waste of herbal decoctions under the optimum condition. Additionally, the mechanism of oxidative desulfurization over Mn-doped skeleton heteroatom titanium nanotubes was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM).