文章基本信息

标题：Novel Na2Mo4O13/α-MoO3 hybrid material as highly efficient CWAO catalyst for dye degradation at ambient conditions
本地全文：下载
作者：Zhang Zhang ; Ruoyan Yang ; Yanshan Gao 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：4
期号：1
DOI：10.1038/srep06797
语种：English
出版社：Springer Nature
摘要：We report a novel hybrid material Na₂Mo₄O₁₃/α-MoO₃ as highly efficient catalytic wet air oxidation (CWAO) catalyst, which showed the highest ever activity at room temperature and atmosphere pressure for the degradation of cationic red GTL. SEM and TEM analyses indicated that this hybrid catalyst has bamboo-shaped nanofiber morphology. In view of practical applications, the influence of some key parameters including operation temperature, catalyst calcination temperature, and the volume of dye wastewater have been optimized. The mechanism for the superior catalytic performance was investigated. XRD, XPS, and ESR suggested the Na₂Mo₄O₁₃/α-MoO₃ hybrid catalyst possesses more O²⁻ ions in the oxygen deficient regions than neat α-MoO₃, promoting the formation of active · OH radicals and resulting in a higher activity. Considering the facile preparation and its superior activity, this novel catalyst is promising for practical dye wastewater treatment.