MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light Irradiation
In this work, CdS quantum dots (QDs) were planted on magnetically recyclable porous Fe<sub>2</sub>O<sub>3</sub> (denoted as F450) to obtain CdS QDs/porous Fe<sub>2</sub>O<sub>3</sub> hybrids (denoted as X–CdS/F450, in which X is the immersion times of...
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MDPI AG
2020-08-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/9/1701 |
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| author | Ruowen Liang Zhoujun He Chen Zhou Guiyang Yan Ling Wu |
| author_facet | Ruowen Liang Zhoujun He Chen Zhou Guiyang Yan Ling Wu |
| author_sort | Ruowen Liang |
| collection | DOAJ |
| description | In this work, CdS quantum dots (QDs) were planted on magnetically recyclable porous Fe<sub>2</sub>O<sub>3</sub> (denoted as F450) to obtain CdS QDs/porous Fe<sub>2</sub>O<sub>3</sub> hybrids (denoted as X–CdS/F450, in which X is the immersion times of CdS QDs). Porous Fe<sub>2</sub>O<sub>3</sub> was first obtained by pyrolysis from an iron-containing metal–organic framework by a two-step calcination method. Next, CdS QDs (of average size 3.0 nm) were uniformly and closely attached to the porous F450 via a sequential chemical-bath deposition strategy. As expected, the X–CdS/F450 hybrids serve as high-performance photocatalysts for the degradation of bisphenol A, a typical endocrine-disrupting chemical. Almost ∼100% of the bisphenol A was degraded over 5-CdS/F450 after visible light irradiation for 30 min (λ ≥ 420 nm). In comparison, the degradation efficiency of pure F450 powder is 59.2%. The high performance of 5-CdS/F450 may be ascribable to the fast electron transport of porous F450, the intense visible-light absorption of the CdS QDs and the matched energy levels between CdS and F450. More significantly, through the photocatalytic degradation reaction, the X–CdS/F450 hybrids can easily be recovered magnetically and reused in subsequent cycles, indicating their stability and recyclability. |
| first_indexed | 2024-03-10T16:44:03Z |
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| id | doaj.art-9e0efa202aea4c0cbee3c9bb623dfadc |
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| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T16:44:03Z |
| publishDate | 2020-08-01 |
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| spelling | doaj.art-9e0efa202aea4c0cbee3c9bb623dfadc2023-11-20T11:48:03ZengMDPI AGNanomaterials2079-49912020-08-01109170110.3390/nano10091701MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light IrradiationRuowen Liang0Zhoujun He1Chen Zhou2Guiyang Yan3Ling Wu4Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, ChinaProvince University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, ChinaProvince University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, ChinaProvince University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, ChinaState Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, ChinaIn this work, CdS quantum dots (QDs) were planted on magnetically recyclable porous Fe<sub>2</sub>O<sub>3</sub> (denoted as F450) to obtain CdS QDs/porous Fe<sub>2</sub>O<sub>3</sub> hybrids (denoted as X–CdS/F450, in which X is the immersion times of CdS QDs). Porous Fe<sub>2</sub>O<sub>3</sub> was first obtained by pyrolysis from an iron-containing metal–organic framework by a two-step calcination method. Next, CdS QDs (of average size 3.0 nm) were uniformly and closely attached to the porous F450 via a sequential chemical-bath deposition strategy. As expected, the X–CdS/F450 hybrids serve as high-performance photocatalysts for the degradation of bisphenol A, a typical endocrine-disrupting chemical. Almost ∼100% of the bisphenol A was degraded over 5-CdS/F450 after visible light irradiation for 30 min (λ ≥ 420 nm). In comparison, the degradation efficiency of pure F450 powder is 59.2%. The high performance of 5-CdS/F450 may be ascribable to the fast electron transport of porous F450, the intense visible-light absorption of the CdS QDs and the matched energy levels between CdS and F450. More significantly, through the photocatalytic degradation reaction, the X–CdS/F450 hybrids can easily be recovered magnetically and reused in subsequent cycles, indicating their stability and recyclability.https://www.mdpi.com/2079-4991/10/9/1701MIL-100(Fe)self-sacrificed templatebisphenol Aphotocatalystmechanism |
| spellingShingle | Ruowen Liang Zhoujun He Chen Zhou Guiyang Yan Ling Wu MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light Irradiation Nanomaterials MIL-100(Fe) self-sacrificed template bisphenol A photocatalyst mechanism |
| title | MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light Irradiation |
| title_full | MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light Irradiation |
| title_fullStr | MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light Irradiation |
| title_full_unstemmed | MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light Irradiation |
| title_short | MOF-Derived Porous Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Coupled with CdS Quantum Dots for Degradation of Bisphenol A under Visible Light Irradiation |
| title_sort | mof derived porous fe sub 2 sub o sub 3 sub nanoparticles coupled with cds quantum dots for degradation of bisphenol a under visible light irradiation |
| topic | MIL-100(Fe) self-sacrificed template bisphenol A photocatalyst mechanism |
| url | https://www.mdpi.com/2079-4991/10/9/1701 |
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