Bimetallic Fe/Ti-Based Metal-Organic Framework for Persulfate-Assisted Visible Light Photocatalytic Degradation of Orange II

被引：81
作者：
Wang, Minghua [1 ,2 ]
Yang, Longyu [2 ]
Guo, Chuanpan [2 ]
Liu, Xufei [2 ]
He, Linghao [2 ]
Song, Yingpan [2 ]
Zhang, Qingxin [1 ]
Qu, Xiongwei [1 ]
Zhang, Hongzhong [2 ]
Zhang, Zhihong [2 ]
Fang, Shaoming [2 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China
[2] Zhengzhou Univ Light Ind, Henan Prov Key Lab Surface & Interface Sci, Henan Collaborat Innovat Ctr Environm Pollut Cont, 136 Sci Ave, Zhengzhou 450001, Henan, Peoples R China
来源：
CHEMISTRYSELECT | 2018年 / 3卷 / 13期
基金：
中国国家自然科学基金;
关键词：
Metal-organic framework; Persulfate activation; Photocatalytic degradation; Orange II; Visible light; AQUEOUS TIO2 SUSPENSIONS; SOLAR LIGHT; OXIDATION; REMOVAL; PERFORMANCE; ACTIVATION; WATER; MOFS; PEROXYMONOSULFATE; FABRICATION;
D O I：
10.1002/slct.201703134
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Amine-functionalized bimetallic Fe/Ti-based metal-organic frameworks (Fe/Ti-MOF-NH2) were synthesized via the solvo-thermal method and used as photocatalysts and activators for persulfate (PS)-assisted visible light photocatalytic degradation of Orange II. Nearly 100% of Orange II was removed within 10 min in the Fe/Ti-MOF-NH2(3:1)/PS/Vis process, while only 10.7% and 70.9% of Orange II were removed in Fe/Ti-MOF-NH2(3:1)/Vis and Fe/Ti-MOF-NH2(3:1)/PS processes within 10 min, respectively. Therefore, the synergistic effect of PS activation and visible light photocatalysis was demonstrated by the Fe/TiMOF-NH2(3:1) composite. The enhanced photocatalytic activity of the photocatalyst can be attributed to the efficient electrons transfer by Fe3+/Fe2+ and Ti4+/Ti3+ redox cycles, activation of PS by photogenerated electrons to produce sulfate radicals (SO4 center dot-), and increased formation of hydroxyl radicals ((OH)-O-center dot). Concurrently, the Fe/Ti-MOF-NH2(3:1) photocatalyst also exhibited good reusability and stability in the photocatalytic reaction system.
引用
收藏
页码：3664 / 3674
页数：11
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