Processing Guar Gum into polyester fabric based promising mixed matrix membrane for water treatment

Mofradi, Marziyeh; Karimi, Hajir; Dashtian, Kheibar; Ghaedi, Mehrorang

doi:10.1016/j.carbpol.2020.116806

Cited by 20 publications

(6 citation statements)

References 65 publications

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“…In the case of the GG/GO membrane, the permeability of CO 2 is enhanced as the amount of GO increases in the membrane; a similar observation was also reported by Pal et al [ 12] The oxygen‐containing functional group on the surface of GO leads to an increase in permeability by interacting with CO 2 via quadrupole moment, which aids in allowing CO 2 to pass through the MMMs via the solution diffusion mechanism. [ 22,25 ] The N 2 permeability declines as the amount of GO increases up to 2 wt.% because the GO crate is inherently a barrier to N 2 due to its large molecular size. Figure 9D reveals that the selectivities of CO 2 /N 2 and CO 2 /H 2 increase by 99.5% and 51.06%, respectively, at 2 wt.% of GO.…”

Section: Resultsmentioning

confidence: 99%

“…Many biopolymers are used to develop membranes, such as chitosan, [ 22 ] agar–agar, [ 23 ] cellulose, [ 24 ] and guar gum (GG). [ 25 ] Polysaccharides‐based biopolymers are promising materials in the field of membrane technology due to their easy availability in nature, film‐forming abilities, non‐toxicity, biodegradability, and ability to cross‐link with other polymers.…”

Section: Introductionmentioning

confidence: 99%

“…[ 21 ] In another study by Mofradi et al, PVDF/GG/UiO66 MMMs were synthesized for wastewater treatment applications. [ 25 ] Therefore, we use GG as a biopolymer for gas separation membranes in this work.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the effect of functionalized carbon nanotube and graphene oxide in guar gum‐based mixed matrix membrane for gas separation application

Pal

Agarwal

2023

Can J Chem Eng

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The present study deals with preparing mixed matrix membranes (MMMs), a new polysaccharide-based natural polymer used as a matrix with functionalized carbon nanotubes (FCNTs) and graphene oxide (GO) used as an inorganic filler.This work identified the effect of the inorganic fillers (FCNTs or GO) with naturally occurring polymer for gas separation. The incorporation of fillers improves the gas separation performance of MMMs. In GG/FCNTs MMMs, the selectivities of CO 2 /N 2 and CO 2 /H 2 were enhanced by 55.24% and 57.89%, respectively. Moreover, in GG/GO MMMs, the selectivities of CO 2 /N 2 and CO 2 /H 2 were improved by 99.50% and 50%, respectively. The membrane was characterized by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR).The SEM analysis of GG/GO MMMs reveals layered structure, and GG/FCNTs MMMs create passages to transport gases. The Universal testing machine (UTM) is used to analyze the mechanical properties of pristine and modified membranes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of the effect of functionalized carbon nanotube and graphene oxide in guar gum‐based mixed matrix membrane for gas separation application

Pal

Agarwal

2023

Can J Chem Eng

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“…Here, all 2θ peaks followed the standard of JCPDS No. 49-2301 for PET fabric [ 40 ]. There were no differences between the control and UV-chemical-treated samples.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of UV-Protective Polyester Fabric with Polysorbate 20 Incorporating Fluorescent Color

Akram

Mia

et al. 2022

Polymers

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Technological advancement leads researchers to develop multifunctional materials. Considering such trends, this study aimed to conjugate dual functionality in a single material to satisfy aesthetic and functional necessities. We investigated the potentiality of polysorbate 20 to perform as an effective ultraviolet absorber to develop UV-protective fabric. Coumarin derivative (Benzoxazolyl type) disperse dyes are well-known as fluorescent colors. On the other hand, luminescence materials are conspicuous and viable for fashion trends. Deliberate utilization of this inherent property of the dye and incorporation of polysorbate fulfilled the need for dual functionality. In addition, the knitted fabric structure enhanced wearing comfort as well. The effect of polysorbate consolidated the PET fabric as an excellent UV absorber, exhibiting an ultraviolet protection factor (UPF) of 53.71 and a blocking percentage of more than 95% for both UVA and UVB. Surface morphology was studied by scanning electron microscope (SEM). Fourier transform infrared spectroscopy (FTIR) with attenuated mode was used to investigate chemical modification. Moreover, X-ray diffraction (XRD) investigated the crystallography of the surface. Reflectance spectrophotometric analysis unveiled the color strength (K/S) of the dyed polyester fabrics. Finally, light fastness assessment revealed that the developed samples could resist a certain amount of photo fading under a controlled testing environment with the increment of ratings towards betterment.

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“…Guar gum is a natural galactomannan polysaccharide derived from cluster beans, which are typically planted and grow well in semiarid areas (mainly India). − The chemical structure of guar gum consists of a linear backbone chain of beta-1,4-linked mannose residues, to which the short side chains of galactose residues alpha-1,6-linked are attached at every other mannose. − Typically, original guar gum has a low solubility in aqueous solutions and has poor temperature resistance and gel-breaking performance after cross-linking. To solve these issues, reagents such as propylene oxide and/or chloroacetic acid have been employed to modify guar gum, resulting in three guar-gum derivatives: hydroxypropyl guar gum (HPG), carboxymethyl guar gum (CMG), and carboxymethyl hydroxypropyl guar gum (CMHPG) .…”

Section: Introductionmentioning

confidence: 99%

Development and Evaluation of an Acidic Shear-Tolerant Nanosheet-Enhanced Cross-Linked Gel System for Hydrofracturing

Zhang

Hou

2021

Energy Fuels

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Acidic fracturing fluids, such as zirconium cross-linked carboxymethyl hydroxypropyl guar gum (CMHPG), can not only adapt to formations treated with CO2 but also protect such formations from the damage that arises from the swelling and migration of clay particles during the hydrofracturing process. However, the shortcomings of uncontrollable viscosity growth and irreversible shear-thinning behavior limit the large-scale application of acidic fracturing fluids. In this work, a novel organic zirconium cross-linker was synthesized in the laboratory and applied under acidic conditions to control and delay cross-linking reactions. The ligands that were coordinated to the zirconium center were l-lactate and ethylene glycol. A CMHPG thickener was used at a low loading of 0.3% (approximately 25 pptg). Concentrated hydrochloric acid was utilized as a buffer to adjust the fracturing fluid pH to 3.0 for the majority of the tests and approximately simulate the pH attained in formations treated with CO2 under high-temperature (HT)/high-pressure (HP) conditions. Moreover, surface-functionalized metallic-phase (1T) molybdenum disulfide (MoS2) nanosheets were employed to improve the rheological performance of the zirconium cross-linked CMHPG fracturing fluid. l-Cysteine was utilized as a modification reagent. The morphologies, structures, and properties of the fabricated functionalized 1T-MoS2 (Cys-1T-MoS2) nanosheets were systematically characterized using transmission electron microscopy (TEM), scanning electron microscopy (SEM), Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The results of these characterization tests demonstrated the successful functionalization of the 1T-MoS2 nanosheets with l-cysteine. Then, the effects of this new nanosheet-enhanced zirconium cross-linked CMHPG fracturing fluid system with different cross-linker and nanosheet loadings on gelation performance were systematically assessed through the Sydansk bottle testing method combined with a rheometer under controlled-stress or controlled-rate modes. Microscopic observations and gel-breaking, regained-permeability, and proppant-settling tests were also carried out to further evaluate the fracturing fluid properties of this new system. The results indicated that the nanosheet-enhanced fracturing fluid had a desirable delayed cross-linking property. Compared with the blank fracturing fluid (without nanosheet enhancement), the nanosheet-enhanced fracturing fluid had a much better shear tolerance, shear recovery, and proppant carrying performance. Micrograph observations showed that an even and fine three-dimensional (3D) network structure formed within the nanosheet-enhanced fracturing fluid sample. Additionally, in contrast to the alkaline system, the acidic nanosheet-enhanced zirconium cross-linked CMHPG fracturing fluid system had much less formation damage induced by gel residues and clay swelling and dispersions.

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Processing Guar Gum into polyester fabric based promising mixed matrix membrane for water treatment

Cited by 20 publications

References 65 publications

Investigation of the effect of functionalized carbon nanotube and graphene oxide in guar gum‐based mixed matrix membrane for gas separation application

Investigation of the effect of functionalized carbon nanotube and graphene oxide in guar gum‐based mixed matrix membrane for gas separation application

Fabrication of UV-Protective Polyester Fabric with Polysorbate 20 Incorporating Fluorescent Color

Development and Evaluation of an Acidic Shear-Tolerant Nanosheet-Enhanced Cross-Linked Gel System for Hydrofracturing

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