New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for Nitrophenols
Metal–organic frameworks (MOFs) are peculiar multimodal materials that find photocatalytic applications for the decomposition of lethal molecules present in the wastewater. In this investigation, two new d<sup>10</sup>-configuration-based MOFs, [Zn<sub>2</sub>(L)(H<sub>...
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MDPI AG
2023-10-01
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| Online Access: | https://www.mdpi.com/1420-3049/28/20/7180 |
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| author | Hui-Shi Bin Hai Hu Jun Wang Lu Lu Mohd Muddassir Devyani Srivastava Ratna Chauhan Yu Wu Xiaoxiong Wang Abhinav Kumar |
| author_facet | Hui-Shi Bin Hai Hu Jun Wang Lu Lu Mohd Muddassir Devyani Srivastava Ratna Chauhan Yu Wu Xiaoxiong Wang Abhinav Kumar |
| author_sort | Hui-Shi Bin |
| collection | DOAJ |
| description | Metal–organic frameworks (MOFs) are peculiar multimodal materials that find photocatalytic applications for the decomposition of lethal molecules present in the wastewater. In this investigation, two new d<sup>10</sup>-configuration-based MOFs, [Zn<sub>2</sub>(L)(H<sub>2</sub>O)(bbi)] (<b>1</b>) and [Cd<sub>2</sub>(L)(bbi)] (<b>2</b>) (5,5-(1,4-phenylenebis(methyleneoxy)diisophthalic acid (H<sub>2</sub>L) and 1,1′-(1,4-butanediyl)bis(imidazole) (bbi)), have been synthesized and characterized. The MOF <b>1</b> displayed a (4,6)-connected (3.4<sup>3</sup>.5<sup>2</sup>)(3<sup>2</sup>.4<sup>4</sup>.5<sup>2</sup>.6<sup>6</sup>.7) network topology, while <b>2</b> had a (3,10)-connected network with a Schläfli symbol of (4<sup>10</sup>.5<sup>11</sup>.6<sup>22</sup>.7<sup>2</sup>)(4<sup>3</sup>)<sub>2</sub>. These MOFs have been employed as photocatalysts to photodegrade nitrophenolic compounds, especially <i>p</i>-nitrophenol (PNP). The photocatalysis studies reveal that <b>1</b> displayed relatively better photocatalytic performance than <b>2</b>. Further, the photocatalytic efficacy of <b>1</b> has been assessed by altering the initial PNP concentration and photocatalyst dosage, which suggest that at 80 ppm PNP concentration and at its 50 mg concentration the MOF <b>1</b> can photo-decompose around 90.01% of PNP in 50 min. Further, radical scavenging experiments reveal that holes present over <b>1</b> and ·OH radicals collectively catalyze the photodecomposition of PNP. In addition, utilizing density of states (DOS) calculations and Hirshfeld surface analyses, a plausible photocatalysis mechanism for nitrophenol degradation has been postulated. |
| first_indexed | 2024-03-10T21:00:42Z |
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| id | doaj.art-6ea8aef3a75749d58beb89b93ae22790 |
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| last_indexed | 2024-03-10T21:00:42Z |
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| spelling | doaj.art-6ea8aef3a75749d58beb89b93ae227902023-11-19T17:33:57ZengMDPI AGMolecules1420-30492023-10-012820718010.3390/molecules28207180New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for NitrophenolsHui-Shi Bin0Hai Hu1Jun Wang2Lu Lu3Mohd Muddassir4Devyani Srivastava5Ratna Chauhan6Yu Wu7Xiaoxiong Wang8Abhinav Kumar9School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, ChinaSchool of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, ChinaSchool of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, ChinaSchool of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, ChinaDepartment of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, IndiaDepartment of Environmental Science, Savitribai Phule Pune University, Pune 411007, IndiaSchool of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, ChinaSchool of Materials and Environmental Engineering, Shenzhen Polytechnic University, Shenzhen 518055, ChinaDepartment of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, IndiaMetal–organic frameworks (MOFs) are peculiar multimodal materials that find photocatalytic applications for the decomposition of lethal molecules present in the wastewater. In this investigation, two new d<sup>10</sup>-configuration-based MOFs, [Zn<sub>2</sub>(L)(H<sub>2</sub>O)(bbi)] (<b>1</b>) and [Cd<sub>2</sub>(L)(bbi)] (<b>2</b>) (5,5-(1,4-phenylenebis(methyleneoxy)diisophthalic acid (H<sub>2</sub>L) and 1,1′-(1,4-butanediyl)bis(imidazole) (bbi)), have been synthesized and characterized. The MOF <b>1</b> displayed a (4,6)-connected (3.4<sup>3</sup>.5<sup>2</sup>)(3<sup>2</sup>.4<sup>4</sup>.5<sup>2</sup>.6<sup>6</sup>.7) network topology, while <b>2</b> had a (3,10)-connected network with a Schläfli symbol of (4<sup>10</sup>.5<sup>11</sup>.6<sup>22</sup>.7<sup>2</sup>)(4<sup>3</sup>)<sub>2</sub>. These MOFs have been employed as photocatalysts to photodegrade nitrophenolic compounds, especially <i>p</i>-nitrophenol (PNP). The photocatalysis studies reveal that <b>1</b> displayed relatively better photocatalytic performance than <b>2</b>. Further, the photocatalytic efficacy of <b>1</b> has been assessed by altering the initial PNP concentration and photocatalyst dosage, which suggest that at 80 ppm PNP concentration and at its 50 mg concentration the MOF <b>1</b> can photo-decompose around 90.01% of PNP in 50 min. Further, radical scavenging experiments reveal that holes present over <b>1</b> and ·OH radicals collectively catalyze the photodecomposition of PNP. In addition, utilizing density of states (DOS) calculations and Hirshfeld surface analyses, a plausible photocatalysis mechanism for nitrophenol degradation has been postulated.https://www.mdpi.com/1420-3049/28/20/7180MOFphotocatalytic performanceHirshfeld surface analysismechanism |
| spellingShingle | Hui-Shi Bin Hai Hu Jun Wang Lu Lu Mohd Muddassir Devyani Srivastava Ratna Chauhan Yu Wu Xiaoxiong Wang Abhinav Kumar New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for Nitrophenols Molecules MOF photocatalytic performance Hirshfeld surface analysis mechanism |
| title | New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for Nitrophenols |
| title_full | New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for Nitrophenols |
| title_fullStr | New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for Nitrophenols |
| title_full_unstemmed | New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for Nitrophenols |
| title_short | New 5,5-(1,4-Phenylenebis(methyleneoxy)diisophthalic Acid Appended Zn(II) and Cd(II) MOFs as Potent Photocatalysts for Nitrophenols |
| title_sort | new 5 5 1 4 phenylenebis methyleneoxy diisophthalic acid appended zn ii and cd ii mofs as potent photocatalysts for nitrophenols |
| topic | MOF photocatalytic performance Hirshfeld surface analysis mechanism |
| url | https://www.mdpi.com/1420-3049/28/20/7180 |
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