Abstract

The Ti-heteropolyacid H₄[Ti(H₂O)TiW₁₁O₃₉]·7H₂O (TiW₁₁Ti) loading TiO₂ with different contents was prepared using dipping method. The TiW₁₁Ti/TiO₂ hybrid was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and diffuse reflectance spectra (DRS). The photocatalytic performance of TiW₁₁Ti/TiO₂ hybrid was investigated by rapid degradation of X-3B as simulated wastewater under xenon light irradiation. The different loading amount of TiW₁₁Ti exhibited different activity. The order of different loading weights of TiW₁₁Ti was as follows: 43 wt% TiW₁₁Ti > 31 wt% TiW₁₁Ti > 50 wt% TiW₁₁Ti > 20 wt% TiW₁₁Ti. The results revealed that the rapid degradation process followed the first-order kinetic reaction according to Langmuir equation. The TiW₁₁Ti/TiO₂ hybrid exhibited highly efficient photocatalytic activity, which was potential for environmental purification.

中文翻译：

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Ti-杂多酸/ TiO 2的制备及其对X-3B的快速光催化降解

摘要

采用浸渍法制备了不同含量的负载TiO ₂的Ti-杂多酸H ₄ [Ti（H ₂ O）TiW ₁₁ O ₃₉ ]·7H ₂ O（TiW ₁₁ Ti）。TiW ₁₁ Ti / TiO ₂杂化物通过傅里叶变换红外光谱（FT-IR），X射线衍射（XRD）和漫反射光谱（DRS）进行了表征。通过氙灯照射下X-3B作为模拟废水的快速降解，研究了TiW ₁₁ Ti / TiO ₂杂化材料的光催化性能。TiW ₁₁的不同装载量钛表现出不同的活性。TiW ₁₁ Ti的不同负载重量的顺序如下：43 wt％TiW ₁₁ Ti> 31 wt％TiW ₁₁ Ti> 50 wt％TiW ₁₁ Ti> 20 wt％TiW ₁₁ Ti。结果表明，根据Langmuir方程，快速降解过程遵循一级动力学反应。TiW ₁₁ Ti / TiO ₂杂化物表现出高效的光催化活性，具有净化环境的潜力。