Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of Dyes
The ternary chalcogenide AgBiS<sub>2</sub> has attracted widespread attention in the field of photovoltaic and photoelectric devices due to its excellent properties. In this study, AgBiS<sub>2</sub> powders with an average diameter of 200 nm were prepared via a simple and con...
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| Format: | Article |
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MDPI AG
2023-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/12/2211 |
| _version_ | 1797380086754705408 |
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| author | Wenzhen Wang Chengxiong Gao Yuxing Chen Tao Shen Mingrong Dong Bo Yao Yan Zhu |
| author_facet | Wenzhen Wang Chengxiong Gao Yuxing Chen Tao Shen Mingrong Dong Bo Yao Yan Zhu |
| author_sort | Wenzhen Wang |
| collection | DOAJ |
| description | The ternary chalcogenide AgBiS<sub>2</sub> has attracted widespread attention in the field of photovoltaic and photoelectric devices due to its excellent properties. In this study, AgBiS<sub>2</sub> powders with an average diameter of 200 nm were prepared via a simple and convenient reflux method from silver acetate, bismuth nitrate pentahydrate, and n-dodecyl mercaptan. The adjustment of the ratios of Ag:Bi:S raw materials and of the reaction temperatures were carried out to investigate the significance of the synthesis conditions toward the composition of the as-synthesized AgBiS<sub>2</sub>. The results of XRD indicated that the powders synthesized at a ratio of 1.05:1:2.1 and a synthesis temperature of 225 °C have the lowest bismuth content and the highest purity. The synthesized AgBiS<sub>2</sub> crystallizes in a rock salt type structure with the cubic <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi><mi>m</mi><mover accent="true"><mrow><mn>3</mn></mrow><mo>¯</mo></mover><mi>m</mi></mrow></semantics></math></inline-formula> space group. Scanning and transmission electron microscopy, thermogravimetric analysis, ultraviolet–visible–near-infrared spectra, and photocatalytic degradation performance were employed to characterize the as-synthesized samples. The results demonstrated that AgBiS<sub>2</sub> powders display thermal stability; strong absorption in the ultraviolet, visible, and partial infrared regions; and an optical bandgap of 0.98 eV. The obtained AgBiS<sub>2</sub> powders also have a good degradation effect on the methylene blue solution with a degradation efficiency of 58.61% and a rate constant of 0.0034 min<sup>−1</sup>, indicating that it is an efficient strategy for sewage degradation to reduce water pollution. |
| first_indexed | 2024-03-08T20:32:18Z |
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| language | English |
| last_indexed | 2024-03-08T20:32:18Z |
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| series | Micromachines |
| spelling | doaj.art-c6535feac85444d3a4eaaa90ebc9082d2023-12-22T14:25:25ZengMDPI AGMicromachines2072-666X2023-12-011412221110.3390/mi14122211Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of DyesWenzhen Wang0Chengxiong Gao1Yuxing Chen2Tao Shen3Mingrong Dong4Bo Yao5Yan Zhu6Shanghai Technical Institute of Electronics & Information, Shanghai 201411, ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaZhejiang Engineering Research Center of MEMS, Shaoxing University, Shaoxing 312000, ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaZhejiang Engineering Research Center of MEMS, Shaoxing University, Shaoxing 312000, ChinaShanghai Technical Institute of Electronics & Information, Shanghai 201411, ChinaThe ternary chalcogenide AgBiS<sub>2</sub> has attracted widespread attention in the field of photovoltaic and photoelectric devices due to its excellent properties. In this study, AgBiS<sub>2</sub> powders with an average diameter of 200 nm were prepared via a simple and convenient reflux method from silver acetate, bismuth nitrate pentahydrate, and n-dodecyl mercaptan. The adjustment of the ratios of Ag:Bi:S raw materials and of the reaction temperatures were carried out to investigate the significance of the synthesis conditions toward the composition of the as-synthesized AgBiS<sub>2</sub>. The results of XRD indicated that the powders synthesized at a ratio of 1.05:1:2.1 and a synthesis temperature of 225 °C have the lowest bismuth content and the highest purity. The synthesized AgBiS<sub>2</sub> crystallizes in a rock salt type structure with the cubic <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi><mi>m</mi><mover accent="true"><mrow><mn>3</mn></mrow><mo>¯</mo></mover><mi>m</mi></mrow></semantics></math></inline-formula> space group. Scanning and transmission electron microscopy, thermogravimetric analysis, ultraviolet–visible–near-infrared spectra, and photocatalytic degradation performance were employed to characterize the as-synthesized samples. The results demonstrated that AgBiS<sub>2</sub> powders display thermal stability; strong absorption in the ultraviolet, visible, and partial infrared regions; and an optical bandgap of 0.98 eV. The obtained AgBiS<sub>2</sub> powders also have a good degradation effect on the methylene blue solution with a degradation efficiency of 58.61% and a rate constant of 0.0034 min<sup>−1</sup>, indicating that it is an efficient strategy for sewage degradation to reduce water pollution.https://www.mdpi.com/2072-666X/14/12/2211AgBiS<sub>2</sub>reflux methodphotocatalytic degradation |
| spellingShingle | Wenzhen Wang Chengxiong Gao Yuxing Chen Tao Shen Mingrong Dong Bo Yao Yan Zhu Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of Dyes Micromachines AgBiS<sub>2</sub> reflux method photocatalytic degradation |
| title | Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of Dyes |
| title_full | Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of Dyes |
| title_fullStr | Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of Dyes |
| title_full_unstemmed | Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of Dyes |
| title_short | Cubic AgBiS<sub>2</sub> Powder Prepared Using a Facile Reflux Method for Photocatalytic Degradation of Dyes |
| title_sort | cubic agbis sub 2 sub powder prepared using a facile reflux method for photocatalytic degradation of dyes |
| topic | AgBiS<sub>2</sub> reflux method photocatalytic degradation |
| url | https://www.mdpi.com/2072-666X/14/12/2211 |
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