期刊
RSC ADVANCES
卷 6, 期 20, 页码 16395-16403出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra24915e
关键词
-
资金
- National Natural Science Foundation of China [21507145]
- Natural Science Foundation of the Education Department of Henan Province [2011B150010]
- Natural Science Foundation of Henan Polytechnic University [B 2008-26, 2012JG077]
The potential of synthesized MOF 235 crystals using a microwave-assisted method was presented, with the advantages of a short reaction time and easy procedure. The as-prepared sample (MA-MOF 235) was characterized by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared spectra (FTIR), X-ray photoelectron spectroscopy (XPS) and N-2 adsorption-desorption isotherm. Meanwhile, the photocatalytic activity of the prepared sample for the degradation of rhodamine B (RhB) under visible light irradiation was also investigated. For comparison, the MOF 235 crystals were also prepared by a conventional solvothermal method, and the ST-MOF 235 was obtained and characterized. The photocatalytic results show that both MA-MOF 235 and ST-MOF 235 exhibit excellent activity for RhB degradation, and they could completely decompose the 40 mmol L-1 RhB in the presence of 1 mmol H2O2 under visible light irradiation within 20 min. The RhB degradation over both synthesized samples followed first-order kinetics. Moreover, MA-MOF 235 showed a very stable activity for RhB degradation and without significant loss of photocatalytic activity after three consecutive usages. The microwave-assisted method is characterized with speed, highly efficiently and the as-prepared MA-MOF 235 exhibits high visible-light-driven photocatalytic efficiency for organic pollutant degradation in comparison with other MOF-based photocatalysts. Therefore, the as-prepared photocatalyst would have great potential for environmental purification.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据