Bimetallic Fe/Ti‐Based Metal–Organic Framework for Persulfate‐Assisted Visible Light Photocatalytic Degradation of Orange II. Issue 13 (6th April 2018)

• Record Type: Journal Article
• Authors: Wang, Minghua; Yang, Longyu; Guo, Chuanpan; Liu, Xufei; He, Linghao; Song, Yingpan; Zhang, Qingxin; Qu, Xiongwei; Zhang, Hongzhong; Zhang, Zhihong; Fang, Shaoming
• Is Part Of: ChemistrySelect. Volume 3:Issue 13(2018)
• Page Start: 3664
• Page End: 3674
• Publication Date: 2018-04-06
• Subjects: Metal–organic framework -- Persulfate activation -- Photocatalytic degradation -- Orange II -- Visible light; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201703134
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Amine‐functionalized bimetallic Fe/Ti‐based metal–organic frameworks (Fe/Ti‐MOF‐NH2 ) were synthesized via the solvothermal 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/Ti‐MOF‐NH2 (3:1) composite. The enhanced photocatalytic activity of the photocatalyst can be attributed to the efficient electrons transfer by Fe 3+ /Fe 2+ and Ti 4+ /Ti 3+ redox cycles, activation of PS by photogenerated electrons to produce sulfate radicals (SO4 − ), and increased formation of hydroxyl radicals ( OH). Concurrently, the Fe/Ti‐MOF‐NH2 (3:1) photocatalyst also exhibited good reusability and stability in the photocatalytic reaction system. Abstract : The synergistic effect of persulfate activation and visible light photocatalysis on Orange II degradation was demonstrated by using bimetallic Fe/Ti‐based metal–organic framework (Fe/Ti‐MOF‐NH2 ) as catalyst. The enhanced photocatalytic activity of the photocatalyst can be attributed to the efficient electrons transfer by Fe 3+ /Fe 2+ and Ti 4+ /Ti 3+ redox cycles, and increased formation of reactive radicals.