期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 44, 期 5, 页码 1786-1791出版社
AMER CHEMICAL SOC
DOI: 10.1021/es903390g
关键词
-
资金
- National Science Foundation of China [20677019, 20877031]
BiFeO3 magnetic nanoparticles (BFO MNPs) were prepared with a sol-gel method and characterized as a catalyst. It was found that BFO MNPs effectively catalyzed the decomposition of H2O2 into center dot OH radicals, being confirmed with electron spin resonance spin-trapping technique and other radical probing techniques, The strong H2O2-activating ability of BFO MNPs showed promising applications in the oxidative degradation of organic pollutants. When BFO MNPs were used as a heterogeneous Fenton-like catalyst to degrade Rhodamine 13,the apparent rate constant for the RhB degradation at 25 degrees C at pH 5.0 in the BFO MNPs-H2O2 system was evaluated to be 2.89 x 10(-2) min(-1), being about 20 folds of that obtained with Fe3O4 MNPs as the catalyst under similar conditions. Moreover, BFO MNPs were demonstrated to have excellent stability and reusability. The catalytic mechanism of BFO MNPs was also investigated with Monte Carlo simulations and density functional theory calculations.
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