Filling Polyoxoanions into MIL-101(Fe) for Adsorption of Organic Pollutants with Facile and Complete Visible Light Photocatalytic Decomposition

Molecules

Xiaoli Jin¹  Qing Lan¹  Sujuan Jin¹  Qiang Zhao¹  Bohan Yang¹  Xuyang Li¹  Haiquan Xie¹  Zhiming Zhang²  Huan Zhang³ 

[1] Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China;Institute of New Energy Materials & Low Carbon Technology, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China;School of Science, Tianjin University of Science & Technology, Tianjin 300457, China;

关键词: polyoxometalates;    metal–organic frameworks;    composite materials;    photocatalysis;    antibiotics;   

DOI  :  10.3390/molecules27113404

来源: DOAJ

【 摘 要 】

Transition metal-substituted polyoxometalates (POMs) were filled into a metal–organic framework (MOF) to construct a series of POM@MOF composites (PMo₁₂O₄₀@MIL-101, PMo₁₁VO₄₀@MIL-101, PMo₁₀V₂O₄₀@MIL-101). The composite materials possess ultra-high adsorption ability, especially for PMo₁₀V₂O₄₀@MIL-101, with an adsorption capacity of 912.5 mg·g⁻¹ for cationic antibiotic tetracycline in wastewater, much higher than that of isolated MIL-101(Fe) and the commonly used adsorption materials, such as activated carbon and graphene oxide. In particular, they can be used as efficient photocatalysts for the photodegradation of antibiotics under visible light irradiation. The complete photodegradation of the adsorbed species can induce the facile reusability of these composites for multiple cycles. This work opens an avenue to introduce POMs into an MOF matrix for the simultaneous adsorption and photodegradation of antibiotics.

【 授权许可】

Unknown