Soybean Oil Bleaching by Adsorption onto Bentonite/Iron Oxide Nanocomposites

Ghorbanpour, Mohammad

doi:10.21315/jps2018.29.2.7

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…The average of three measurements for bentonite before the modification is 15.358 m 2 g −1 and after modification process is slightly larger 15.763 m 2 g −1 . As Ghorbanpour indicated, the reason for the surface increase can be diffusion of iron ions to the bentonite [19].…”

Section: Aluminosilicate Nanofiller (Bentonite)mentioning

confidence: 98%

Hybrid XNBR composites with carbon and aluminosilicate nanofillers

et al. 2019

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The objective of the work was to investigate the possibility of simultaneous application of different types of nanofillers: graphene oxide with carboxylic groups and modified bentonite nanoparticles to carboxylated acrylonitrile-butadiene rubber (XNBR), and to determine the effect on the structural, mechanical and barrier properties of the composites. The composites were designed for use in protective clothing and gloves. Rubber compounds were crosslinked by a hybrid set with simultaneous use of sulphur (1.5 phr) and magnesium oxide (2.5 phr). Graphene oxide and bentonite particles were characterised by BET test method. The XNBR composites with nanofillers were studied in terms of structure (WAXS) and types of chemical bonds (FTIR), barrier properties against chemical substances (mineral oil) and swelling properties, as well as mechanical properties (puncture resistance, tear resistance, cut resistance, abrasion resistance, tensile strength). Simultaneous incorporation into XNBR of two types of nanofillers, bentonite in the amount of 1.0-4.0 phr and graphene oxide with carboxylic groups in the amount of 1.0-2.0 phr, affected positively the mechanical parameters. The most significant improvement was noted for the parameter specifying the puncture resistance, almost threefold improvement from 34 ± 2 N for unfilled XNBR composite to 91 ± 5 N for XNBR composite filled with 2 phr of bentonite (XNBR Bent. 2), or one and a half to 56 ± 5 N for XNBR composite filled with 2 phr of bentonite and 2 phr of graphene oxide (XNBR Bent 2 GO 2). The composites showed equally high resistance to penetration of the selected test chemical-mineral oil. The breakthrough time for XNBR composites without the nanofiller and containing differential amounts of nanofillers was very long and similar to that obtained for the reference sample (480 min). Electronic supplementary materialThe online version of this article (https ://doi.org/10.1007/s0028 9-019-02825 -9) contains supplementary material, which is available to authorized users.Polymer Bulletin (2020) 77:1749-1780 tetra-and octahedrons that are balanced by free alkaline cations (Na + , Ca 2+ , H + , Li + ) in the intercalated area. Inorganic cations in the gallery are exchanged, e.g. to organic cations, so the MMT surface becomes organophilic [7].The distances between the layers are within the 0.1-2.1 nm range. The thickness of a single MMT platelet amounts to 9.6 Å, and its transverse dimensions range from 300 nm to several micrometres. The total thickness of a single package along with the space between it and another platelet is called the base distance and amounts to 1.26 nm (Fig. 1) [8].The layered structure of MMT results in the ability to absorb water and dissolve in organic solvents, binding surfactants and larger molecules in the intercalated layer, which is used for filling polymer composites. A significant advantage of bentonites is the ability to create gels in water, with thixotropic properties [9,10]. Natural bentonites are, however, hydrophilic and incompatible with pol...

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Section: Aluminosilicate Nanofiller (Bentonite)mentioning

confidence: 98%

Hybrid XNBR composites with carbon and aluminosilicate nanofillers

et al. 2019

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“…To overcome these drawbacks, the immobilization of nanoparticles on a suitable substrate is applied 10,11 . On the other hand, one of the extensively studied adsorbents is clays mineral 12,13 . Among various kinds of clays, bentonite is one of the interesting and low‐cost selections, which has been applied widely in the catalysis and adsorption process 8,12,14 .…”

Section: Introductionmentioning

confidence: 99%

“…The solid‐state ion exchange process is simpler and faster in comparison to the liquid‐state process. In recent years, this process is used for the synthesis of zinc, copper, iron, or silver/bentonite nanocomposites for photocatalytic, adsorbent, and antibacterial applications 8,12,14,16 . Purpose of this study is the removal of asphaltene by iron exchanged bentonite composites.…”

Section: Introductionmentioning

confidence: 99%

“…10,11 On the other hand, one of the extensively studied adsorbents is clays mineral. 12,13 Among various kinds of clays, bentonite is one of the interesting and low-cost selections, which has been applied widely in the catalysis and adsorption process. 8,12,14 Bentonite contains exchangeable captions within its structure and can subsequently pose an ion exchange process.…”

mentioning

confidence: 99%

“…12,13 Among various kinds of clays, bentonite is one of the interesting and low-cost selections, which has been applied widely in the catalysis and adsorption process. 8,12,14 Bentonite contains exchangeable captions within its structure and can subsequently pose an ion exchange process. The ion exchange process results in the replacement of exchangeable captions of bentonite (usually calcium or sodium ions) by various organic or inorganic cations.…”

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confidence: 99%

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Removal of asphaltene by solid‐phase iron exchanged bentonite

Jajin

Ghorbanpour

2022

Env Prog and Sustain Energy

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The purpose of this study was to modify bentonite (B) by iron using the solid-phase ion exchange method to enhance the asphaltene adsorption. According to the scanning electron microscope (SEM) and x-ray diffraction analysis (XRD) results, after solid-state ion exchange, the structure of parent bentonite was changed slightly. An energy-dispersive x-ray analysis (EDX) showed that after ion exchange, the iron contents of bentonite increased from 0.6% to 1.6% w/w. Bentonite modification with iron increases asphaltene adsorption capacity (about 60%) compared to parent bentonite. Optimal adsorbent conditions for adsorption of asphaltene are 100 ppm concentration, 5 g/L adsorbent, and 60 min contact time. Adsorbent behavior showed that the adsorption kinetics and isotherm are in good agreement with the pseudosecond-order model and the Langmuir equation.

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A performance comparison of photo-fenton decolorization of methylene blue by using bentonite/iron composites prepared by liquid phase and solid phase ion exchange method

Alatabe,

Ghorbanpour

2024

Desalination and Water Treatment

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Soybean Oil Bleaching by Adsorption onto Bentonite/Iron Oxide Nanocomposites

Cited by 5 publications

References 12 publications

Hybrid XNBR composites with carbon and aluminosilicate nanofillers

Hybrid XNBR composites with carbon and aluminosilicate nanofillers

Removal of asphaltene by solid‐phase iron exchanged bentonite

A performance comparison of photo-fenton decolorization of methylene blue by using bentonite/iron composites prepared by liquid phase and solid phase ion exchange method

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