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Ultrasound-assisted synthesis of YbVO4 nanostructure and YbVO4/CuWO4 nanocomposites for enhanced photocatalytic degradation of organic dyes under visible light
Ultrasonics Sonochemistry ( IF 8.7 ) Pub Date : 2018-01-05 , DOI: 10.1016/j.ultsonch.2017.11.040
Mohammad Eghbali-Arani , Ali Sobhani-Nasab , Mehdi Rahimi-Nasrabadi , Farhad Ahmadi , Saeid Pourmasoud

YbVO4 nanostructure and YbVO4/CuWO4 nanocomposites were successfully synthesized using sonochemical method, for the first time. In this disquisition, we tried to compare various parameters and reaction conditions on size, morphology, and uniformity of as-obtained samples. To reach optimum condition, some parameters including time, power, temperature, and solvent were investigated. The structural, morphological, optical, and magnetic properties of as-obtained products were characterized by some techniques such as FT-IR, XRD, EDS, SEM, TEM, UV-Vis, and VSM. Furthermore, due to occurrence of red shift in nonanocomposite, during the coupling of CuWO4 into YbVO4, photocatalytic and optical properties of final products were improved which lead to improve photo-destruction efficiency for methylene blue from 65% to 100%, during 120 min irradiation. The effect of the ultrasonic radiation on the photocatalytic behavior of YbVO4/CuWO4 shows that methylene blue pollutant destruction was about 100% with ultrasonic wave and 61% in the absence of ultrasonic radiation.



中文翻译:

超声辅助合成YbVO 4纳米结构和YbVO 4 / CuWO 4纳米复合材料在可见光下增强有机染料的光催化降解

首次采用声化学方法成功合成了YbVO 4纳米结构和YbVO 4 / CuWO 4纳米复合材料。在本次研究中,我们试图比较各种参数和反应条件对所获得样品的大小,形态和均匀性的影响。为了达到最佳条件,研究了一些参数,包括时间,功率,温度和溶剂。通过诸如FT-IR,XRD,EDS,SEM,TEM,UV-Vis和VSM等技术来表征所获得产品的结构,形态,光学和磁性。此外,由于在非纳米复合材料中发生红移,因此在CuWO 4偶联到YbVO 4中,最终产物的光催化和光学性能得到改善,从而在120分钟的照射过程中,亚甲基蓝的光解效率从65%提高到100%。超声波辐射对YbVO 4 / CuWO 4的光催化行为的影响表明,在超声波作用下,亚甲基蓝污染物的破坏程度约为100%,在没有超声波辐射的情况下,破坏程度为61%。

更新日期:2018-01-06
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