Preparation and Photocatalytic Property of Er sub(3)NbO sub(7)/LSC-100 Chelating Resin Composites

• Published in: Integrated ferroelectrics Vol. 159; no. 1; pp. 73 - 86
• Main Authors: Zhao, Jie, He, Qiang, Yao, Binghua, Zhang, Qian, Zhang, Ting, Yang, Mingkang, Liu, Yang
• Format: Journal Article
• Language: English
• Published: 02-01-2015
• Subjects: Byproducts; Chelating resins; Degradation; Fourier transforms; Photocatalysis; Polymer matrix composites; Scanning electron microscopy; Ultraviolet
• ISSN: 1058-4587; 1607-8489
• DOI: 10.1080/10584587.2015.1031064

Er sub(3)NbO sub(7)/LSC-100 chelating resin composites were prepared by a simple thermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrum, scanning electron microscopy (SEM), UV-vis diffuse reflectance spectrum and thermo gravimetric analysis (TGA). The photocatalytic activities of the as-prepared samples were evaluated by the photocatalytic degradation of metronidazole in aqueous solution under ultraviolet light irradiation. The results showed that the Er sub(3)NbO sub(7) (6 wt%)/LSC-100 chelating resin composites exhibited a higher photocatalytic degradation activity than the pure Er sub(3)NbO sub(7) for metronidazole, which could be attributed to the synergetic effects of the adsorbability of LSC-100 chelating resin and the photocatalytic property of Er sub(3)NbO sub(7) on it. Specifically, four by-products were identified by UPLC-MS-MS along the metronidazole degradation, thus getting useful insight on the degradation pathway by photolysis and photocatalysis.