Enhanced photodegradation activity of Rhodamine B by MgFe2O4/Ag3VO4 under visible light irradiation

Enhanced photodegradation activity of Rhodamine B by MgFe2O4/Ag3VO4 under visible light irradiation
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可见光照射下MgFe2O4/Ag3VO4增强罗丹明B的光降解活性

DOI:
10.1016/j.catcom.2012.10.013
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发表时间:
2013-01
影响因子:
3.7
通讯作者:
Wu, Tinghua
Wu, Tinghua
中科院分区:
化学3区
文献类型:
--
作者:
Zhang, Lei;He, Yiming;Ye, Ping;Wu, Ying;Wu, Tinghua

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采用球磨-煅烧法制备了MgFe 2 O 4/Ag 3VO 4复合光催化剂。对罗丹明B(RhB)的光降解研究表明,MgFe 2 O 4/Ag 3VO 4复合材料在可见光照射下具有较强的光降解活性。0.2wt.%在573 K下焙烧的MgFe 2 O 4/Ag 3VO 4具有最佳的光催化性能。其最大降解速率是Ag 3VO 4的5.4倍。此外,瞬态光电流-时间也进行了研究。在表征结果的基础上,对光催化活性增强的机理进行了探讨。
MgFe2O4/Ag3VO4composite photocatalysts were synthesized by a milling–calcining method. The results of Rhodamine B (RhB) photodegradation showed that the MgFe2O4/Ag3VO4composite exhibited enhanced photodegradation activity under visible-light irradiation. The 0.2wt.% MgFe2O4/Ag3VO4calcined at 573K exhibited the optimal photocatalytic behavior. Its maximum degradation rate was 5.4 times higher than that of Ag3VO4. Moreover, transient photocurrent-time was also investigated. Based on the results of the characterizations, the mechanism of enhanced photocatalytic activity is discussed.
DOI: 10.1016/j.mseb.2011.09.022
发表时间: 2011-11
期刊: Materials Science and Engineering B-Solid State Materials for Advanced Technology
影响因子: --
作者:
Zhang, Lei;He, Yiming;Wu, Ying;Wu, Tinghua
通讯作者: Wu, Tinghua
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