Vasiliki I. Karagianni, Efthymia Toti, Christos Dimitriou, Yiannis Deligiannakis, Alexios P. Douvalis, Manolis J. Manos
{"title":"可重复使用的sns2基棉织物复合材料在连续流动条件下有效去除水中的铅离子","authors":"Vasiliki I. Karagianni, Efthymia Toti, Christos Dimitriou, Yiannis Deligiannakis, Alexios P. Douvalis, Manolis J. Manos","doi":"10.1021/acs.langmuir.5c01540","DOIUrl":null,"url":null,"abstract":"Lead is a toxic heavy metal that pollutes the environment and accumulates in the human body, causing many severe health issues. Metal sulfides have emerged as promising sorbents for rapidly decontaminating Pb<sup>2+</sup>-containing wastewater, showing exceptional sorption kinetics, capacities, and selectivity against common competitive ionic species. In this study, we present modified SnS<sub>2</sub> phases, namely, SnS<sub>2</sub>(DMA)<sub>0.7</sub>(H<sub>2</sub>O)<sub>0.3</sub> (<b>SnS</b><sub><b>2</b></sub><b>/DMA</b>, DMA = dimethylamine) and Sn<sub>1–<i>x</i></sub>S<sub>2</sub>·<i>y</i>H<sub>2</sub>O (<b>SnS</b><sub><b>2</b></sub><b>/acid</b>), which demonstrated efficient removal of Pb<sup>2+</sup> ions from aqueous solutions. Both materials exhibited fast kinetics (≤4 min), high sorption capacities (838.0 mg g<sup>–1</sup> for <b>SnS</b><sub><b>2</b></sub><b>/DMA</b> and 190.0 mg g<sup>–1</sup> for <b>SnS</b><sub><b>2</b></sub><b>/acid</b>), remarkable selectivity toward Pb<sup>2+</sup> over several competing cations and in various pH values, because of strong Pb–S covalent interactions. Aiming for practical wastewater treatment, we immobilized <b>SnS</b><sub><b>2</b></sub><b>/DMA</b> and <b>SnS</b><sub><b>2</b></sub><b>/acid</b> on cotton fabrics, marking this as the initial application of metal sulfides immobilized onto cotton substrates. The metal sulfide-fabric composites were utilized to remove Pb<sup>2+</sup> under continuous flow conditions, showing significant Pb<sup>2+</sup> sorption properties. Significantly, the metal sulfide-based composites can be regenerated and reused over several Pb<sup>2+</sup> sorption cycles. This feature, demonstrated for the first time in metal sulfide materials, constitutes a breakthrough for this class of sorbents.","PeriodicalId":50,"journal":{"name":"Langmuir","volume":"134 1","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Reusable SnS2-Based Cotton Fabric Composites for Efficient Decontamination of Water from Lead Ions under Continuous Flow Conditions\",\"authors\":\"Vasiliki I. Karagianni, Efthymia Toti, Christos Dimitriou, Yiannis Deligiannakis, Alexios P. Douvalis, Manolis J. Manos\",\"doi\":\"10.1021/acs.langmuir.5c01540\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Lead is a toxic heavy metal that pollutes the environment and accumulates in the human body, causing many severe health issues. Metal sulfides have emerged as promising sorbents for rapidly decontaminating Pb<sup>2+</sup>-containing wastewater, showing exceptional sorption kinetics, capacities, and selectivity against common competitive ionic species. In this study, we present modified SnS<sub>2</sub> phases, namely, SnS<sub>2</sub>(DMA)<sub>0.7</sub>(H<sub>2</sub>O)<sub>0.3</sub> (<b>SnS</b><sub><b>2</b></sub><b>/DMA</b>, DMA = dimethylamine) and Sn<sub>1–<i>x</i></sub>S<sub>2</sub>·<i>y</i>H<sub>2</sub>O (<b>SnS</b><sub><b>2</b></sub><b>/acid</b>), which demonstrated efficient removal of Pb<sup>2+</sup> ions from aqueous solutions. Both materials exhibited fast kinetics (≤4 min), high sorption capacities (838.0 mg g<sup>–1</sup> for <b>SnS</b><sub><b>2</b></sub><b>/DMA</b> and 190.0 mg g<sup>–1</sup> for <b>SnS</b><sub><b>2</b></sub><b>/acid</b>), remarkable selectivity toward Pb<sup>2+</sup> over several competing cations and in various pH values, because of strong Pb–S covalent interactions. Aiming for practical wastewater treatment, we immobilized <b>SnS</b><sub><b>2</b></sub><b>/DMA</b> and <b>SnS</b><sub><b>2</b></sub><b>/acid</b> on cotton fabrics, marking this as the initial application of metal sulfides immobilized onto cotton substrates. The metal sulfide-fabric composites were utilized to remove Pb<sup>2+</sup> under continuous flow conditions, showing significant Pb<sup>2+</sup> sorption properties. Significantly, the metal sulfide-based composites can be regenerated and reused over several Pb<sup>2+</sup> sorption cycles. This feature, demonstrated for the first time in metal sulfide materials, constitutes a breakthrough for this class of sorbents.\",\"PeriodicalId\":50,\"journal\":{\"name\":\"Langmuir\",\"volume\":\"134 1\",\"pages\":\"\"},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2025-05-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Langmuir\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.langmuir.5c01540\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Langmuir","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.langmuir.5c01540","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Reusable SnS2-Based Cotton Fabric Composites for Efficient Decontamination of Water from Lead Ions under Continuous Flow Conditions
Lead is a toxic heavy metal that pollutes the environment and accumulates in the human body, causing many severe health issues. Metal sulfides have emerged as promising sorbents for rapidly decontaminating Pb2+-containing wastewater, showing exceptional sorption kinetics, capacities, and selectivity against common competitive ionic species. In this study, we present modified SnS2 phases, namely, SnS2(DMA)0.7(H2O)0.3 (SnS2/DMA, DMA = dimethylamine) and Sn1–xS2·yH2O (SnS2/acid), which demonstrated efficient removal of Pb2+ ions from aqueous solutions. Both materials exhibited fast kinetics (≤4 min), high sorption capacities (838.0 mg g–1 for SnS2/DMA and 190.0 mg g–1 for SnS2/acid), remarkable selectivity toward Pb2+ over several competing cations and in various pH values, because of strong Pb–S covalent interactions. Aiming for practical wastewater treatment, we immobilized SnS2/DMA and SnS2/acid on cotton fabrics, marking this as the initial application of metal sulfides immobilized onto cotton substrates. The metal sulfide-fabric composites were utilized to remove Pb2+ under continuous flow conditions, showing significant Pb2+ sorption properties. Significantly, the metal sulfide-based composites can be regenerated and reused over several Pb2+ sorption cycles. This feature, demonstrated for the first time in metal sulfide materials, constitutes a breakthrough for this class of sorbents.
期刊介绍:
Langmuir is an interdisciplinary journal publishing articles in the following subject categories:
Colloids: surfactants and self-assembly, dispersions, emulsions, foams
Interfaces: adsorption, reactions, films, forces
Biological Interfaces: biocolloids, biomolecular and biomimetic materials
Materials: nano- and mesostructured materials, polymers, gels, liquid crystals
Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry
Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals
However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do?
Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*.
This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).