Chen Qi, Yan Zhicheng, Zhang Hao, Zhang Lai-Chang, Ma Haijian, Wang Wenlong, Wang Weimin
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China.
School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth WA6027, Australia.
Materials (Basel). 2020 Aug 21;13(17):3694. doi: 10.3390/ma13173694.
The as spun amorphous (FeSiB)Zr (Zr0.5) and (FeSiB)Zr (Zr1) ribbons having a Fenton-like reaction are proved to bear a good degradation performance in organic dye wastewater treatment for the first time by evaluating their degradation efficiency in methylene blue (MB) solution. Compared to the widely studied (FeSiB)Zr (Zr0) amorphous ribbon for degradation, with increasing (Zr atomic content), the as-spun Zr0, Zr0.5 and Zr1 amorphous ribbons have gradually increased degradation rate of MB solution. According to δc (characteristic distance) of as-spun Zr0, Zr0.5 and Zr1 ribbons, the free volume in Zr1 ribbon is higher Zr0 and Zr0.5 ribbons. In the reaction process, the Zr1 ribbon surface formed the 3D nano-porous structure with specific surface area higher than the cotton floc structure formed by Zr0 ribbon and coarse porous structure formed by Zr0.5 ribbon. The Zr1 ribbon's high free volume and high specific surface area make its degradation rate of MB solution higher than that of Zr0 and Zr0.5 ribbons. This work not only provides a new method to remedying the organic dyes wastewater with high efficiency and low-cost, but also improves an application prospect of Fe-based glassy alloys.
通过评估其在亚甲基蓝(MB)溶液中的降解效率,首次证明了具有类芬顿反应的初纺非晶态(FeSiB)Zr(Zr0.5)和(FeSiB)Zr(Zr1)薄带在有机染料废水处理中具有良好的降解性能。与广泛研究的用于降解的(FeSiB)Zr(Zr0)非晶薄带相比,随着(Zr原子含量)的增加,初纺的Zr0、Zr0.5和Zr1非晶薄带对MB溶液的降解速率逐渐提高。根据初纺Zr0、Zr0.5和Zr1薄带的δc(特征距离),Zr1薄带中的自由体积高于Zr0和Zr0.5薄带。在反应过程中,Zr1薄带表面形成了三维纳米多孔结构,其比表面积高于Zr0薄带形成的棉絮状结构和Zr0.5薄带形成的粗孔结构。Zr1薄带的高自由体积和高比表面积使其对MB溶液的降解速率高于Zr0和Zr0.5薄带。这项工作不仅提供了一种高效、低成本修复有机染料废水的新方法,还改善了铁基玻璃合金的应用前景。