Tai-Dan Chen , Jin-He Wang , Jiu-Yu Ji , Xun Zhou , Shaohui Zhang , Yue Tai , Kun Zhou
{"title":"基于keggin型polyoxometalate@Cu/Ag的无机-有机杂化物对亚甲基蓝的降解/吸收及电催化性能研究","authors":"Tai-Dan Chen , Jin-He Wang , Jiu-Yu Ji , Xun Zhou , Shaohui Zhang , Yue Tai , Kun Zhou","doi":"10.1016/j.vacuum.2024.113875","DOIUrl":null,"url":null,"abstract":"<div><div>Inorganic–organic hybrid materials based on polyoxometalates (POMs) owing to their structural characteristics have potential applications in many fields including optics, electronics, and catalysis and so on. Two inorganic-organic hybrid compounds {[Cu(pyr)<sub>2</sub>]<sub>4</sub>(SiW<sub>12</sub>O<sub>40</sub>)}<sub><em>n</em></sub> (<strong>1</strong>) and {[Ag(pyr)<sub>2</sub>]<sub>4</sub>(SiW<sub>12</sub>O<sub>40</sub>)}<sub><em>n</em></sub> (<strong>2</strong>) (pyr = pyrazole) were synthesized by the assembly of [SiW<sub>12</sub>O<sub>40</sub>]<sup>4-</sup> as the inorganic structural unit, the N-containing heterocyclic pyr as the organic ligand, and Cu<sup>+</sup>/Ag<sup>+</sup> as the linkers under hydrothermal conditions. One dimensional (1D) chain <strong>1</strong> and two dimensional (2D) layer <strong>2</strong> were effectively confirmed through X-ray diffraction techniques and etc. Their photo-thermal equilibrium temperatures were 76.6 °C and 35.4 °C, and the superior photo-thermal performance of <strong>1</strong> to that of <strong>2</strong> may be attributed to their absorption intensities at 532 nm. Compound <strong>1</strong> photocatalyzed the degradation of MB, and compound <strong>2</strong> mainly adsorbed MB, well explaining their structure-activity relationship. In addition, both <strong>1</strong> and <strong>2</strong> have good electrocatalytic activity towards sodium nitrite.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"232 ","pages":"Article 113875"},"PeriodicalIF":3.8000,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Inorganic–organic hybrids based on Keggin-type polyoxometalate@Cu/Ag for degradation/absorption of methylene blue and electrocatalytic property\",\"authors\":\"Tai-Dan Chen , Jin-He Wang , Jiu-Yu Ji , Xun Zhou , Shaohui Zhang , Yue Tai , Kun Zhou\",\"doi\":\"10.1016/j.vacuum.2024.113875\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Inorganic–organic hybrid materials based on polyoxometalates (POMs) owing to their structural characteristics have potential applications in many fields including optics, electronics, and catalysis and so on. Two inorganic-organic hybrid compounds {[Cu(pyr)<sub>2</sub>]<sub>4</sub>(SiW<sub>12</sub>O<sub>40</sub>)}<sub><em>n</em></sub> (<strong>1</strong>) and {[Ag(pyr)<sub>2</sub>]<sub>4</sub>(SiW<sub>12</sub>O<sub>40</sub>)}<sub><em>n</em></sub> (<strong>2</strong>) (pyr = pyrazole) were synthesized by the assembly of [SiW<sub>12</sub>O<sub>40</sub>]<sup>4-</sup> as the inorganic structural unit, the N-containing heterocyclic pyr as the organic ligand, and Cu<sup>+</sup>/Ag<sup>+</sup> as the linkers under hydrothermal conditions. One dimensional (1D) chain <strong>1</strong> and two dimensional (2D) layer <strong>2</strong> were effectively confirmed through X-ray diffraction techniques and etc. Their photo-thermal equilibrium temperatures were 76.6 °C and 35.4 °C, and the superior photo-thermal performance of <strong>1</strong> to that of <strong>2</strong> may be attributed to their absorption intensities at 532 nm. Compound <strong>1</strong> photocatalyzed the degradation of MB, and compound <strong>2</strong> mainly adsorbed MB, well explaining their structure-activity relationship. In addition, both <strong>1</strong> and <strong>2</strong> have good electrocatalytic activity towards sodium nitrite.</div></div>\",\"PeriodicalId\":23559,\"journal\":{\"name\":\"Vacuum\",\"volume\":\"232 \",\"pages\":\"Article 113875\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-11-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Vacuum\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0042207X24009217\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vacuum","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0042207X24009217","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Inorganic–organic hybrids based on Keggin-type polyoxometalate@Cu/Ag for degradation/absorption of methylene blue and electrocatalytic property
Inorganic–organic hybrid materials based on polyoxometalates (POMs) owing to their structural characteristics have potential applications in many fields including optics, electronics, and catalysis and so on. Two inorganic-organic hybrid compounds {[Cu(pyr)2]4(SiW12O40)}n (1) and {[Ag(pyr)2]4(SiW12O40)}n (2) (pyr = pyrazole) were synthesized by the assembly of [SiW12O40]4- as the inorganic structural unit, the N-containing heterocyclic pyr as the organic ligand, and Cu+/Ag+ as the linkers under hydrothermal conditions. One dimensional (1D) chain 1 and two dimensional (2D) layer 2 were effectively confirmed through X-ray diffraction techniques and etc. Their photo-thermal equilibrium temperatures were 76.6 °C and 35.4 °C, and the superior photo-thermal performance of 1 to that of 2 may be attributed to their absorption intensities at 532 nm. Compound 1 photocatalyzed the degradation of MB, and compound 2 mainly adsorbed MB, well explaining their structure-activity relationship. In addition, both 1 and 2 have good electrocatalytic activity towards sodium nitrite.
期刊介绍：
Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences.
A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below.
The scope of the journal includes:
1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes).
2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis.
3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification.
4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.
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