Adsorption kinetics of halloysite nanotube and modified halloysite at the Palm oil-water interface and Pickering emulsion stabilized by halloysite nanotube and modified halloysite nanotube

Sadeh, Pegah; Najafipour, Iman; Gholami, Mohsen

doi:10.1016/j.colsurfa.2019.05.034

Cited by 25 publications

(11 citation statements)

References 39 publications

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“…However, the contact angle at 30 min is very similar and slightly superior to that of Bio-HDPE/PE-g-MA/MAS. This could be attributed, on the one hand, to polar functional groups (hydroxyl) present in HNTs structure and, on the other hand, to their ability to retain different molecules within their tubular hollow structure, water being one of those molecules [ 82 ]. As expected, Bio-HDPE/PE-g-MA/MAS/MLO sample shows the lowest contact angle over time, reaching a considerably lower value than the rest of the samples (22.1°).…”

Section: Resultsmentioning

confidence: 99%

Upgrading Argan Shell Wastes in Wood Plastic Composites with Biobased Polyethylene Matrix and Different Compatibilizers

et al. 2021

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The present study reports on the development of wood plastic composites (WPC) based on micronized argan shell (MAS) as a filler and high-density polyethylene obtained from sugarcane (Bio-HDPE), following the principles proposed by the circular economy in which the aim is to achieve zero waste by the introduction of residues of argan as a filler. The blends were prepared by extrusion and injection molding processes. In order to improve compatibility between the argan particles and the green polyolefin, different compatibilizers and additional filler were used, namely polyethylene grafted maleic anhydride (PE-g-MA 3 wt.-%), maleinized linseed oil (MLO 7.5 phr), halloysite nanotubes (HNTs 7.5 phr), and a combination of MLO and HNTs (3.75 phr each). The mechanical, morphological, thermal, thermomechanical, colorimetric, and wettability properties of each blend were analyzed. The results show that MAS acts as a reinforcing filler, increasing the stiffness of the Bio-HDPE, and that HNTs further increases this reinforcing effect. MLO and PE-g-MA, altogether with HNTs, improve the compatibility between MAS and Bio-HDPE, particularly due to bonds formed between oxygen-based groups present in each compound. Thermal stability was also improved provided by the addition of MAS and HNTs. All in all, reddish-like brown wood plastic composites with improved stiffness, good thermal stability, enhanced compatibility, and good wettability properties were obtained.

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Section: Resultsmentioning

confidence: 99%

Upgrading Argan Shell Wastes in Wood Plastic Composites with Biobased Polyethylene Matrix and Different Compatibilizers

et al. 2021

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“…As a direct consequence, the former resulted in W/O emulsions and the latter in O/W emulsions, as experimentally demonstrated. [ 146 ]…”

Section: Halloysite Nanotubes Based Pickering Emulsionsmentioning

confidence: 99%

“…As a direct consequence, the former resulted in W/O emulsions and the latter in O/W emulsions, as experimentally demonstrated. [146] Ouadaker et al exploited the formation of halloysite stabilized Pickering emulsions as templates for the design of porous granules via freeze granulation. [147] For this purpose, the emulsion was atomized and frozen by spraying it into liquid nitrogen.…”

Section: Hnts As Interfacially Active Stabilizersmentioning

confidence: 99%

Pickering Emulsions Stabilized by Halloysite Nanotubes: From General Aspects to Technological Applications

Lisuzzo

Cavallaro

Milioto

et al. 2022

Adv Materials Inter

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Besides surfactants, which decrease the interfacial tension between two immiscible liquids, also interfacially active particles can successfully stabilize an emulsion system by attaching at the liquid–liquid interface. The preparation of the resulting Pickering emulsions has been so far investigated starting from the study of the interactions arising between the dispersed droplets and the stabilizers, till the application of these systems in a wide range of different fields. This work is intended to provide an overall overview about the development of Pickering emulsions by considering the most general aspects and scanning the diverse types of solid stabilizers. Among them, Halloysite nanotubes play a major role as naturally derived clay with emulsifying capability owing to their cheap, abundant, green and biocompatible properties. Therefore, the design of Halloysite stabilized Pickering emulsions is the main content of this review, which will survey the role of nanotubes in providing colloidal stability and will comprehensively sum up the use of these particles in technological and industrial purposes: from environmental to catalytic, from health to cultural heritage related applications.

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“…Natural clay nanoparticles, for example, may serve as an environmentally benign alternative to conventional emulsifiers. Halloysite is an abundant, naturally occurring aluminosilicate capable of forming oil-in-water Pickering emulsions that are stable for months. − Halloysite clay nanotubes (HNT) are promising Pickering emulsifiers. Alone the nanotubes have slight emulsification capabilities, but HNT are easily modifiable to increase wettability for enhancing emulsification properties.…”

Section: Nanomaterials For Oil Spill Remediationmentioning

confidence: 99%

Nano-enhanced Bioremediation for Oil Spills: A Review

2021

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Oil seepage and spills have lasting detrimental effects on the environment, especially on nearby marine ecosystems. Despite quick and safe removal of contaminating oil being of utmost importance, remediation methods have remained largely unchanged over the last 20+ years. Removal methods such as skimmers, in situ burning, and sorbents can be difficult to implement in inclement weather. Marine microorganisms consume spilled oil as a primary energy source in a method known as bioremediation. Recently the introduction of nanoparticles to areas contaminated by oil has emerged as a potential method to enhance the efficacy of oil degradation by marine microorganisms. Nanoparticles have been primarily utilized as magnetic sorbents but can also act as emulsifiers, increasing the bioavailability of the oil by giving microbes a surface (droplets) to which they can attach and facilitate proliferation. Emulsification increases the oil−water interfacial area and often leads to an increase in the amount of oil degraded by microorganisms. Nanoenhanced bioremediation is effective on a variety of oil compositions and is minimally impacted by weather. It offers a sustainable alternative to traditional remediation methods, i.e., chemical dispersants, sorbents, and in situ burning, which are often toxic and ineffective.

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Adsorption kinetics of halloysite nanotube and modified halloysite at the Palm oil-water interface and Pickering emulsion stabilized by halloysite nanotube and modified halloysite nanotube

Cited by 25 publications

References 39 publications

Upgrading Argan Shell Wastes in Wood Plastic Composites with Biobased Polyethylene Matrix and Different Compatibilizers

Upgrading Argan Shell Wastes in Wood Plastic Composites with Biobased Polyethylene Matrix and Different Compatibilizers

Pickering Emulsions Stabilized by Halloysite Nanotubes: From General Aspects to Technological Applications

Nano-enhanced Bioremediation for Oil Spills: A Review

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