The effect of the structural, optical, and surface properties of anatase-TiO2 film on photocatalytic degradation of methylene blue organic contaminant
The effect of the structural, optical, and surface properties of anatase-TiO2 film on photocatalytic degradation of methylene blue organic contaminant
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DOI：
10.1007/s11581-019-02986-7
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发表时间：
2019-09-01
期刊：
影响因子：
2.8
通讯作者：
Atay, Ferhunde
中科院分区：
文献类型：
--
作者：
Cergel, Muge Soyleyici;Demir, Ersin;Atay, Ferhunde
以文献报道较少的氯化钛为前驱体，采用超声喷雾热分解技术在玻璃衬底上制备了TiO 2薄膜，并在空气中于550 ℃下退火3 h，成功制备出了高折射率的TiO 2薄膜。通过X射线衍射（XRD）、紫外-可见光谱、椭圆偏振光谱、光致发光光谱、原子力显微镜（AFM）和能量色散X射线（EDX）光谱等手段对样品的结构、光学和表面性质进行了表征。此外，为了考察TiO 2薄膜作为催化剂的应用潜力，在紫外光照射下，以亚甲基蓝染料为降解对象，考察了不同时间间隔下TiO 2薄膜的光催化性能。结果表明，TiO 2薄膜光催化降解亚甲基蓝符合一级动力学规律，1h后降解率达到66.1%。因此，开发了一种替代的，廉价的，易于应用的，高效的材料用于去除废水中的有机染料。
TiO2 film was prepared onto glass substrates with ultrasonic spray pyrolysis technique by using the less reported Ti (IV) chloride precursor, and then a highly anatase TiO2 film was successfully produced by annealing at 550 degrees C for 3 h in air. The structural, optical, and surface properties were characterized in detail by means of X-ray diffraction (XRD) patterns, UV-vis spectroscopy, spectroscopic ellipsometry, photoluminescence spectrometry, atomic force microcopy (AFM), and energy dispersive X-ray (EDX) spectroscopy. Furthermore, to investigate the application potential as a catalyst, the photocatalytic property of TiO2 film was tested by the degradation of methylene blue dye at various time intervals under UV light. It was determined that photocatalytic degradation of methylene blue using TiO2 film has the highest correlation with first-order velocity law, and the degradation efficiency was successfully achieved at 66.1% after 1 h. Consequently, an alternative, inexpensive, easily applicable, and highly efficient material was developed for the removal of organic dyes in wastewater.