{"title":"膨润土-gemini（Bt-16-4-16）混合材料的吸附、抗菌和分子动力学研究","authors":"Amlanjyoti Gogoi, Jamsheera Anjudikkal, Anjana P.N., Ajmal Koya Pulikkal","doi":"10.1016/j.jwpe.2024.106602","DOIUrl":null,"url":null,"abstract":"<div><div>This work reports the preparation of a novel hybrid material, integrating a gemini surfactant, butane-1,4-bis(hexadecyldimethylammonium) dibromide, 16-4-16, into bentonite clay (raw Bt), which possessed the ability to remove tartrazine dye (TD) from aqueous solutions. The Bt-16-4-16 hybrid material was characterized through FT-IR, XRD, SEM, EDX, and BET. The results were further compared with previously reported Bt–16-3-16 hybrid material (prepared using propane-1,3-bis(hexadecyldimethylammonium) dibromide, 16-3-16, gemini surfactant). The Bt-16-4-16 and Bt–16-3-16 demonstrated around 97–98 % removal efficiency towards TD under specific experimental conditions examined ([TD] = 10 mg L<sup>−1</sup>, [adsorbent] = 2 g L<sup>−1</sup>, pH = 3, equilibrium time = 60 min, temperature = 298.15 K). With the rise in [TD] (from 1 to 100 mg L<sup>−1</sup>), the hybrid materials showed a prominent rise in adsorption capacity from 0.51 to 44.36 mg g<sup>−1</sup> for Bt-16-4-16 and 0.50 to 42.61 mg g<sup>−1</sup> for Bt-16-3-16. The efficiency of Bt–16-4-16 and Bt-16-3-16 in the removal of TD was not influenced much by the presence of various cations (Mg<sup>2+</sup>, Ca<sup>2+</sup>, Ni<sup>2+</sup>, Cu<sup>2+</sup>) and anions (EDTA, sulphate, HCO<sub>3</sub>¯and SO<sub>4</sub><sup>2−</sup>). The presence of 0.1 M NaCl caused a 0.05 % and 1.43 % decrease in the removal efficiency of Bt-16-4-16 and Bt-16-3-16, respectively. The results followed pseudo-second-order adsorption kinetics and agreed with the Freundlich isotherm. The Bt-16-4-16 and Bt-16-3-16 achieved maximum adsorption capacities of 128.7 and 117.8 mg g<sup>−1</sup> against TD. The adsorption thermodynamics revealed that the process at the adsorbent's solid-liquid interfaces is entropy-driven, spontaneous, and endothermic. Both Bt-16-4-16 and Bt-16-3-16 were found to be reusable even after the 5<sup>th</sup> cycle. The Bt–16-4-16 showed a strong affinity towards TD and quickly reached maximum adsorption capacity at a relatively low fugacity of ≤15 kPa. Further, the antibacterial property of Bt-16-4-16 and Bt-16-3-16 was also tested.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106602"},"PeriodicalIF":6.3000,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Adsorption, antibacterial and molecular dynamic studies of bentonite clay–gemini (Bt–16-4-16) hybrid material\",\"authors\":\"Amlanjyoti Gogoi, Jamsheera Anjudikkal, Anjana P.N., Ajmal Koya Pulikkal\",\"doi\":\"10.1016/j.jwpe.2024.106602\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This work reports the preparation of a novel hybrid material, integrating a gemini surfactant, butane-1,4-bis(hexadecyldimethylammonium) dibromide, 16-4-16, into bentonite clay (raw Bt), which possessed the ability to remove tartrazine dye (TD) from aqueous solutions. The Bt-16-4-16 hybrid material was characterized through FT-IR, XRD, SEM, EDX, and BET. The results were further compared with previously reported Bt–16-3-16 hybrid material (prepared using propane-1,3-bis(hexadecyldimethylammonium) dibromide, 16-3-16, gemini surfactant). The Bt-16-4-16 and Bt–16-3-16 demonstrated around 97–98 % removal efficiency towards TD under specific experimental conditions examined ([TD] = 10 mg L<sup>−1</sup>, [adsorbent] = 2 g L<sup>−1</sup>, pH = 3, equilibrium time = 60 min, temperature = 298.15 K). With the rise in [TD] (from 1 to 100 mg L<sup>−1</sup>), the hybrid materials showed a prominent rise in adsorption capacity from 0.51 to 44.36 mg g<sup>−1</sup> for Bt-16-4-16 and 0.50 to 42.61 mg g<sup>−1</sup> for Bt-16-3-16. The efficiency of Bt–16-4-16 and Bt-16-3-16 in the removal of TD was not influenced much by the presence of various cations (Mg<sup>2+</sup>, Ca<sup>2+</sup>, Ni<sup>2+</sup>, Cu<sup>2+</sup>) and anions (EDTA, sulphate, HCO<sub>3</sub>¯and SO<sub>4</sub><sup>2−</sup>). The presence of 0.1 M NaCl caused a 0.05 % and 1.43 % decrease in the removal efficiency of Bt-16-4-16 and Bt-16-3-16, respectively. The results followed pseudo-second-order adsorption kinetics and agreed with the Freundlich isotherm. The Bt-16-4-16 and Bt-16-3-16 achieved maximum adsorption capacities of 128.7 and 117.8 mg g<sup>−1</sup> against TD. The adsorption thermodynamics revealed that the process at the adsorbent's solid-liquid interfaces is entropy-driven, spontaneous, and endothermic. Both Bt-16-4-16 and Bt-16-3-16 were found to be reusable even after the 5<sup>th</sup> cycle. The Bt–16-4-16 showed a strong affinity towards TD and quickly reached maximum adsorption capacity at a relatively low fugacity of ≤15 kPa. Further, the antibacterial property of Bt-16-4-16 and Bt-16-3-16 was also tested.</div></div>\",\"PeriodicalId\":17528,\"journal\":{\"name\":\"Journal of water process engineering\",\"volume\":\"69 \",\"pages\":\"Article 106602\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2024-11-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of water process engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214714424018348\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714424018348","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Adsorption, antibacterial and molecular dynamic studies of bentonite clay–gemini (Bt–16-4-16) hybrid material
This work reports the preparation of a novel hybrid material, integrating a gemini surfactant, butane-1,4-bis(hexadecyldimethylammonium) dibromide, 16-4-16, into bentonite clay (raw Bt), which possessed the ability to remove tartrazine dye (TD) from aqueous solutions. The Bt-16-4-16 hybrid material was characterized through FT-IR, XRD, SEM, EDX, and BET. The results were further compared with previously reported Bt–16-3-16 hybrid material (prepared using propane-1,3-bis(hexadecyldimethylammonium) dibromide, 16-3-16, gemini surfactant). The Bt-16-4-16 and Bt–16-3-16 demonstrated around 97–98 % removal efficiency towards TD under specific experimental conditions examined ([TD] = 10 mg L−1, [adsorbent] = 2 g L−1, pH = 3, equilibrium time = 60 min, temperature = 298.15 K). With the rise in [TD] (from 1 to 100 mg L−1), the hybrid materials showed a prominent rise in adsorption capacity from 0.51 to 44.36 mg g−1 for Bt-16-4-16 and 0.50 to 42.61 mg g−1 for Bt-16-3-16. The efficiency of Bt–16-4-16 and Bt-16-3-16 in the removal of TD was not influenced much by the presence of various cations (Mg2+, Ca2+, Ni2+, Cu2+) and anions (EDTA, sulphate, HCO3¯and SO42−). The presence of 0.1 M NaCl caused a 0.05 % and 1.43 % decrease in the removal efficiency of Bt-16-4-16 and Bt-16-3-16, respectively. The results followed pseudo-second-order adsorption kinetics and agreed with the Freundlich isotherm. The Bt-16-4-16 and Bt-16-3-16 achieved maximum adsorption capacities of 128.7 and 117.8 mg g−1 against TD. The adsorption thermodynamics revealed that the process at the adsorbent's solid-liquid interfaces is entropy-driven, spontaneous, and endothermic. Both Bt-16-4-16 and Bt-16-3-16 were found to be reusable even after the 5th cycle. The Bt–16-4-16 showed a strong affinity towards TD and quickly reached maximum adsorption capacity at a relatively low fugacity of ≤15 kPa. Further, the antibacterial property of Bt-16-4-16 and Bt-16-3-16 was also tested.
期刊介绍：
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies
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