Synthesis of hexagonal Zn3(OH)2V2O7·2H2O nanoplates by a hydrothermal approach: Magnetic and photocatalytic properties

• Published in: Materials characterization 2013-12, Vol.86, p.139-145
• Main Authors: Wang, Fangfang, Wu, Wenbin, Sun, Xiujuan, Song, Shuyan, Xing, Yan, Wang, Jiawei, Yu, Donghui, Su, Zhongmin
• Format: Article
• Language: English
• Subjects: Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Hexagonal nanoplates; Hydrothermal approach; Magnetic properties; Materials science; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations; Photocatalytic properties; Physics; Solidification
• ISSN: 1044-5803; 1873-4189
• DOI: 10.1016/j.matchar.2013.10.006

Hexagonal Zn3(OH)2V2O7·2H2O nanoplates have been successfully synthesized via a facile and template-free hydrothermal method. The nanocrystals have a hexagonal shape with 650–750nm in diameter and 120–140nm in thickness. The possible mechanism of forming such hexagonal Zn3(OH)2V2O7·2H2O nanoplates may be due to its inherent anisotropic crystal structure. Magnetic hysteresis measurement indicates that the as-synthesized hexagonal Zn3(OH)2V2O7·2H2O nanoplates have weak ferromagnetic property at room temperature. Compared to the floriated-like nanostructured Zn3V2O7(OH)2(H2O)2 synthesized by a hydrothermal route, the as-prepared hexagonal Zn3(OH)2V2O7·2H2O nanoplates exhibited a significant increase in the methylene blue (MB) photodegradation rate under UV irradiation. [Display omitted] •Hexagonal Zn3(OH)2V2O7·2H2O nanoplates was synthesized via a hydrothermal method.•Magnetic study indicates that the nanoplates are of weak ferromagnetic property at room temperature.•The nanoplates exhibit greatly enhanced activity in the UV-light photocatalytic degradation of methylene blue.