Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver Iodide
Photocatalytic degradation, as a very significant advanced oxidation technology in the field of environmental purification, has attracted extensive attention in recent years. The design and synthesis of catalysts with high-intensity photocatalytic properties have been the focus of many researchers i...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/12/1581 |
| _version_ | 1797461047844536320 |
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| author | Xing-Xing Zhang Xiao-Jia Wang Yun-Yin Niu |
| author_facet | Xing-Xing Zhang Xiao-Jia Wang Yun-Yin Niu |
| author_sort | Xing-Xing Zhang |
| collection | DOAJ |
| description | Photocatalytic degradation, as a very significant advanced oxidation technology in the field of environmental purification, has attracted extensive attention in recent years. The design and synthesis of catalysts with high-intensity photocatalytic properties have been the focus of many researchers in recent years. In this contribution, two new supramolecular materials {[(L1)·(Ag<sub>4</sub>I<sub>7</sub>)]CH<sub>3</sub>CN} (1), {[(L2)·(Ag<sub>4</sub>I<sub>7</sub>)]CH<sub>3</sub>CN} (<b>2</b>) were synthesized by solution volatilization reaction of two cationic templates 1,3,5-Tris(4-aminopyridinylmethyl)-2,4,6-Trimethylphenyl bromide (L1) and 1,3,5-Tris(4-methyl pyridinyl methyl)-2,4,6-trimethylphenyl bromide (L2) with metal salt AgI at room temperature, respectively. The degradation effect of <b>1</b> and <b>2</b> as catalyst on tetracycline (TC) under visible light irradiation was studied. The results showed that the degradation of TC by <b>1</b> was better than that by <b>2</b> and both of them had good stability and cyclability. The effects of pH value, catalyst dosage, and anion in water on the photocatalytic performance were also investigated. The adsorption kinetics fit the quasi-first-order model best. After 180 min of irradiation with <b>1</b>, the degradation rate of TC can reach 97.91%. In addition, the trapping experiments showed that ·OH was the main active substance in the photocatalytic degradation of TC compared with ·O<sub>2</sub><sup>−</sup> and h<sup>+</sup>. Because of its simple synthesis and high removal efficiency, catalyst <b>1</b> has potential value for the treatment of wastewater containing organic matter. |
| first_indexed | 2024-03-09T17:13:51Z |
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| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T17:13:51Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-ed3a16264f6f48bd8c3d0790272f65c72023-11-24T13:51:29ZengMDPI AGCatalysts2073-43442022-12-011212158110.3390/catal12121581Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver IodideXing-Xing Zhang0Xiao-Jia Wang1Yun-Yin Niu2Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaGreen Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaGreen Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaPhotocatalytic degradation, as a very significant advanced oxidation technology in the field of environmental purification, has attracted extensive attention in recent years. The design and synthesis of catalysts with high-intensity photocatalytic properties have been the focus of many researchers in recent years. In this contribution, two new supramolecular materials {[(L1)·(Ag<sub>4</sub>I<sub>7</sub>)]CH<sub>3</sub>CN} (1), {[(L2)·(Ag<sub>4</sub>I<sub>7</sub>)]CH<sub>3</sub>CN} (<b>2</b>) were synthesized by solution volatilization reaction of two cationic templates 1,3,5-Tris(4-aminopyridinylmethyl)-2,4,6-Trimethylphenyl bromide (L1) and 1,3,5-Tris(4-methyl pyridinyl methyl)-2,4,6-trimethylphenyl bromide (L2) with metal salt AgI at room temperature, respectively. The degradation effect of <b>1</b> and <b>2</b> as catalyst on tetracycline (TC) under visible light irradiation was studied. The results showed that the degradation of TC by <b>1</b> was better than that by <b>2</b> and both of them had good stability and cyclability. The effects of pH value, catalyst dosage, and anion in water on the photocatalytic performance were also investigated. The adsorption kinetics fit the quasi-first-order model best. After 180 min of irradiation with <b>1</b>, the degradation rate of TC can reach 97.91%. In addition, the trapping experiments showed that ·OH was the main active substance in the photocatalytic degradation of TC compared with ·O<sub>2</sub><sup>−</sup> and h<sup>+</sup>. Because of its simple synthesis and high removal efficiency, catalyst <b>1</b> has potential value for the treatment of wastewater containing organic matter.https://www.mdpi.com/2073-4344/12/12/1581AgIsupramolecular materialphotocatalytic degradation (PDT)tetracycline (TC)catalyst |
| spellingShingle | Xing-Xing Zhang Xiao-Jia Wang Yun-Yin Niu Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver Iodide Catalysts AgI supramolecular material photocatalytic degradation (PDT) tetracycline (TC) catalyst |
| title | Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver Iodide |
| title_full | Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver Iodide |
| title_fullStr | Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver Iodide |
| title_full_unstemmed | Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver Iodide |
| title_short | Photocatalytic Degradation of Tetracycline by Supramolecular Materials Constructed with Organic Cations and Silver Iodide |
| title_sort | photocatalytic degradation of tetracycline by supramolecular materials constructed with organic cations and silver iodide |
| topic | AgI supramolecular material photocatalytic degradation (PDT) tetracycline (TC) catalyst |
| url | https://www.mdpi.com/2073-4344/12/12/1581 |
| work_keys_str_mv | AT xingxingzhang photocatalyticdegradationoftetracyclinebysupramolecularmaterialsconstructedwithorganiccationsandsilveriodide AT xiaojiawang photocatalyticdegradationoftetracyclinebysupramolecularmaterialsconstructedwithorganiccationsandsilveriodide AT yunyinniu photocatalyticdegradationoftetracyclinebysupramolecularmaterialsconstructedwithorganiccationsandsilveriodide |