Modification of Clay Crystal Structure with Different Alcohols

Seydibeyoğlu, M. Özgür; Demiroglu, Sibel; Atagür, Metehan; Ocaktan, Selmin Yanar

doi:10.4236/nr.2017.811044

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Several bentonite/clay modification techniques have been carried out to improve the properties of bentonite-clay, including acid modification [1], polymer modification [2], alcohol modification [3], surfactant modification [4], organic matter modification [5], nanocomposite modification [6], and metal doping modification [7]. Bentonite/clay that has been modified through several of the above techniques is able to show better properties, such as increased stability, increased reactivity, and increased adsorption capacity, making it more effective in its application.…”

Section: Introductionmentioning

confidence: 99%

Pillared Interlayered Clays (PILCs): Harnessing Their Potential as Adsorbents and Catalysts - A Mini Review

Widi

2023

Atlantis Highlights in Engineering

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The Pillared Interlayered Clays (PILCs) have attracted significant attention in recent years due to their versatile applications as adsorbents and catalysts in various environmental and industrial processes. This mini review presents a comprehensive overview of the recent researches conducted on PILCs and highlights their potential as effective materials for pollutant removal and catalytic reactions, with a particular focus on the principles of green chemistry.The review begins by introducing the basic concept of PILCs, emphasizing the importance of interlayer pillaring to enhance their structural stability and surface area. PILCs offer a greener alternative to traditional adsorbents and catalysts by providing high adsorption capacity and catalytic activity with lower environmental impacts.The catalytic applications of PILCs in green chemistry are also explored. Their unique structural features, such as tunable acidity and porosity, enable efficient catalytic reactions while minimizing the use of toxic or harmful substances. This mini review provides a concise yet comprehensive summary of the recent advancements in the research on PILCs as adsorbents and catalysts, with a focus on green chemistry principles. PILCs offer great potential as sustainable alternatives for pollutant removal and catalytic reactions, aligning with the goals of green chemistry to minimize environmental impact and promote sustainable development. Further research and development efforts are required to fully harness the green potential of PILCs and facilitate their practical and commercial applications in various industries.

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Section: Introductionmentioning

confidence: 99%

Pillared Interlayered Clays (PILCs): Harnessing Their Potential as Adsorbents and Catalysts - A Mini Review

Widi

2023

Atlantis Highlights in Engineering

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“…Kompozit malzemeleri oluşturmak için organik veya inorganik yapılı birçok farklı takviye malzemesi kullanılabilir ancak ucuz, doğal ve çevre dostu olmaları sebebiyle inorganik yapıdaki kil türevli bileşikler, kompozit malzeme sanayisinde daha geniş bir kullanım alanına sahiptirler [17,18]. Özellikle HST kili, morfolojik yapıları bakımından karbon nanotüplere olan benzerlikleri ve karbon nanotüplere oranla oldukça ucuz olmaları sebebiyle nanoteknoloji çalışmalarında kullanımı araştırmaya ve geliştirilmeye açık bir konudur [19].…”

Section: Introductionunclassified

Elektro Çekim Yöntemi ile Haloysit Katkılı Biyo-Bazlı Termoplastik Poliüretan Nanolif Üretimi ve Karakterizasyonu

Akin¹,

Mustafov²,

Alyamaç³

et al. 2020

Tekstil ve Mühendis

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In this study, it was aimed to produce biocomposite nanofibers by using electrospinning technique and to form biocomposite structure, bio-based thermoplastic polyurethane (BioTPU) and halloysite (HST) mineral obtained from natural sources were used. Electrospinning parameters have been optimized for the production of nanofibers with smooth morphology and the polymer solution with the most suitable parameter was determined. Different concentrations of HST filled BioTPU nanofibers were produced and the rheological behavior of the solutions was investigated with a rotational rheometer before electrospinning to observe the effects of halloysite on fiber morphology. Fourier transform infrared spectroscopy (FTIR) analysis was carried out to determine the chemical composition of acquired nanofibers, and scanning electron microscopy (SEM) was used to monitor surface morphologies. Contact angle measurements were carried out to observe the effects of halloysite on the hydrophilicity of nanofiber. According to rheology results, it has been found out that the solution viscosity, storage modulus (G') and loss modulus (G'') of halloysite increased up to a certain concentration (0.3 % HST), but later caused falls on viscosity. According to the results of FTIR analysis, there is no chemical bond between halloysite and BioTPU, but SEM images show that halloysite was added to the structure of nanofibers. It was also found that the halloysite added to the structure increased the fiber diameters and that the fiber cross-section was not uniformly distributed along the fiber axis. The results of contact angle analysis indicated that acquired nanofibers have hydrophobic surface and the added halloysite decreases contact angles of nanofibers.

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Anomalous Viscosity, Aggregation, and Non-Ergodic Phase of Laponite® RD in a Water–Methanol Binary Solvent

Tiwari

Bohidar

Das

et al. 2023

Clays and clay miner.

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Study of the behavior of landfill lining materials (clays) in organic solvents is important because, in waste management, lining prevents groundwater contamination by the adsorption of various pollutants such as chemicals and organic solvents. Although scaling behavior and the self-association property of clays in water-alcohol binary solvents have been studied by many researchers, the anomalous behavior of Laponite XLG in binary solvents requires investigation as suggested by previous studies. In the present study, Laponite® RD, which is structurally similar to Laponite XLG, was used to gain further insight into the reasons for the anomalous viscosity, aggregation, and non-ergodic behavior of clay in a water–methanol binary solvent. Dynamic light scattering (DLS) revealed the emergence of the non-ergodic phase of 3% w/v Laponite® RD in the water–methanol binary solvent, which increased in the presence of a large methanol content as well as with aging time in the binary solvent. Viscosity measurements further indicated that aggregation was responsible for the non-ergodic behavior, and small-angle X-ray scattering (SAXS) revealed that a large methanol content enhanced the aggregation. Moreover, SAXS data also revealed that the surface charge was responsible for anomalous viscosity fluctuations in the binary solvent due to interparticle repulsion within aggregates. Rheological studies showed that the large methanol content in the binary solvent led to frequency-independent behavior of the storage modulus of Laponite® RD.

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Modification of Clay Crystal Structure with Different Alcohols

Cited by 4 publications

References 9 publications

Pillared Interlayered Clays (PILCs): Harnessing Their Potential as Adsorbents and Catalysts - A Mini Review

Pillared Interlayered Clays (PILCs): Harnessing Their Potential as Adsorbents and Catalysts - A Mini Review

Elektro Çekim Yöntemi ile Haloysit Katkılı Biyo-Bazlı Termoplastik Poliüretan Nanolif Üretimi ve Karakterizasyonu

Anomalous Viscosity, Aggregation, and Non-Ergodic Phase of Laponite® RD in a Water–Methanol Binary Solvent

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