Chitosan- or glycidyl methacrylate-based adsorbents for the removal of dyes from aqueous solutions: a review

Mashabi, Raed A.; Khan, Ziya Ahmad; Elwakeel, Khalid Z.

doi:10.1039/d2ma00320a

Cited by 63 publications

(22 citation statements)

References 144 publications

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“…The rejection of RR195 was increased from 90 to 94% by embedding the nanocomposite into the PES membrane, with Z-PO 2 0.1 Torr/PES having the greatest rejection of this dye. The difference in rejection between RG19 and RR195 can be related to RG19’s greater molecular size and the membranes’ mean pores that affect the physical sieving mechanism . The improved dye separation efficiency of the embedded membranes is due to the improvement of membrane hydrophilicity, which results in the rejection of organic dye molecules from the surface of the membrane via a hydrophilic–hydrophobic repulsive force. , Clinoptilolite possesses a negative charge.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O₂ Pressures

Vatanpour

Mehrabani

Safarpour

et al. 2023

ACS Appl. Mater. Interfaces

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In this research, the non-thermal glow discharge plasma process was implemented to modify the surface of natural clinoptilolite zeolite before incorporation into the polyethersulfone (PES) membrane. The influence of plasma gas pressure variation on the fouling resistance and separation performance of the prepared membranes was studied. Fourier transform infrared, field emission scanning electron microscopy, and X-ray diffraction analyses of the unmodified and modified clinoptilolites revealed the Si–OH–Al bond’s development during plasma treatment and the change in surface characteristics. In terms of performance, increasing the plasma gas pressure during clinoptilolite treatment resulted in the twofold enhancement of water flux from 91.2 L/m2 h of bare PES to 188 L/m2 h of the membrane containing plasma-treated clinoptilolite at 1.0 Torr pressure. Meanwhile, the antifouling behavior of membranes was improved by introducing more hydrophilic functional groups derived from the plasma treatment process. Additionally, the enhanced dye separation of membranes was indicated by the separation of 99 and 94% of reactive green 19 and reactive red 195, respectively.

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Section: Resultsmentioning

confidence: 99%

Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O₂ Pressures

Vatanpour

Mehrabani

Safarpour

et al. 2023

ACS Appl. Mater. Interfaces

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“…Therefore, Lead (II) and cadmium (II) are of greater concern on the list of the Environmental Protection Agency (EPA) and has set the maximum permissible limit for Pb as 0.015 mg/l and Cd as 0.005 mg/l in drinking water. [4][5][6][7][8] In contemporary times, heavy metal ion removal from waste water has been employed by several methods such as adsorption, membrane separation, chemical precipitation, electrochemical deposition, ion exchange, oxidation and coagulation with their merits and demerits. Among these methods, adsorption has emerged and predominated due to simplicity, cost effective and highly efficient technique to remove heavy metal ions from contaminated water.…”

Section: Introductionmentioning

confidence: 99%

“…Both the metals can accumulates into human body and it leads to organ (liver, pancreas, kidney and heart etc) damage. Therefore, Lead (II) and cadmium (II) are of greater concern on the list of the Environmental Protection Agency (EPA) and has set the maximum permissible limit for Pb as 0.015 mg/l and Cd as 0.005 mg/l in drinking water [4–8] …”

Section: Introductionmentioning

confidence: 99%

Thiol Functionalized Aloe Vera Fibre Filter: A Simple Portable Water Filter For Heavy Metal Ion Removal

Thimmiah

Nallathambi

2023

ChemistrySelect

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A novel high efficient filtration system for heavy metal ion adsorption from water bodies has been developed. It is a costefficient filtration system that removes Pb 2 + and Cd 2 + ions effectively in an efficient manner. Aloe vera fibre that has been alkali-treated and given a thiol functional is stuffed into a porous tube with a packing density of 0.2, and the porous tube is covered with polyacrylonitrile nanofibre. Functionalized aloe vera fibre and PAN nano fibres were characterized by various techniques such as X-ray difractiomatry (XRD), Attenuated total reflection-fourier transforms infrared spectroscopy (ATR-FTIR), thermo gravimetric analysis (TGA), tensile tester and scanning electron microscopy (SEM). Furthermore, the heavy metal ion removal efficiency of filtration system was examined by inductively coupled plasma-optical emission spectrometry (ICP-OES). Inductively coupled plasma-optical emission spectrometry (ICP-OES) was used to evaluate the effectiveness of the filtering system's ability to remove heavy metal ions. In order to conduct column adsorption tests, the initial metal ion concentration was varied. The breakthrough curves of the trials were then analysed. With the aid of Thomas adsorption isotherm and Yoon-Nelson model, the adsorption mechanism of thiol functionalized aloe vera fibre was thoroughly investigated. The portable filter has the ability to continuously treat waste water, which is a useful function.

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“…Versatile methods of removing organic pollutants as well as unwanted waste materials can cause direct environmental degradation. They can also be the reason for soil pollution as well as water contamination, as several authors point out in their research (54)(55)(56)(57)(58). Therefore, it is necessary to choose sorbents that are safe for the environment Adsorbents are solid substances used in separation of components from fluid mixtures (liquids and gases).…”

Section: Introductionmentioning

confidence: 99%

Usage of sorbents for diminishing the negative impact of substances leaking into the environment in car accidents

Marková

Kubás

Buganová

et al. 2022

Front. Public Health

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BackgroundCar accidents are often accompanied by dangerous substances leaking into the environment. A proper reaction to the leaking substances, utilizing appropriate sorbents, is necessary for diminishing the negative impact of such events. Sorbents as substances of initial intervention in car accidents (as well as industrial and ecological accidents) are a crucial tool for solving crises connected with dangerous substances escaping into the environment. The risk resulting from the given realities is described in detail in the introduction of the article.The goalThe goal is describing elements of crisis management in dangerous substance leakage and an analysis of sorption resources for quick and efficient interception of leaking substances, water, ethanol, oil, and gasoline in particular, as a reaction to such events.MethodsThe quality of a sorption resource is determined by a parameter called the sorption capacity, which has been established according to the ASTM F716-18 standard. Loose nature-based sorbents (peat) and synthetic silicate-based SiO2, Al2O3, Fe2O3, and polypropylene-based ones were observed. The research has been realized on a water, oil, gasoline, and ethanol sorbate. Each experiment was repeated three timesThe resultsThe results attest to the diversity of sorption capacity in comparing nature-based, silicate-based, and polypropylene-based sorption materials. The highest sorption capacity values were reached with the Sorb 4 sample, which is based on 66% of silica and 18% of alumina. The stated ratio is important, because the Sorb 3 sample contains 85% of silica and 6% of alumina and its absorption capacity values are significantly lower.

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Chitosan- or glycidyl methacrylate-based adsorbents for the removal of dyes from aqueous solutions: a review

Abstract: Dyes have been found in industrial effluent, noting the need for effective treatment. Different processes like filtration, flocculation and adsorption are low-cost, and efficient methods used for the removal of...

Cited by 63 publications

References 144 publications

Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O₂ Pressures

Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O₂ Pressures

Thiol Functionalized Aloe Vera Fibre Filter: A Simple Portable Water Filter For Heavy Metal Ion Removal

Usage of sorbents for diminishing the negative impact of substances leaking into the environment in car accidents

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Chitosan- or glycidyl methacrylate-based adsorbents for the removal of dyes from aqueous solutions: a review

Abstract: Dyes have been found in industrial effluent, noting the need for effective treatment. Different processes like filtration, flocculation and adsorption are low-cost, and efficient methods used for the removal of...

Cited by 63 publications

References 144 publications

Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O2 Pressures

Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O2 Pressures

Thiol Functionalized Aloe Vera Fibre Filter: A Simple Portable Water Filter For Heavy Metal Ion Removal

Usage of sorbents for diminishing the negative impact of substances leaking into the environment in car accidents

Contact Info

Product

Resources

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Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O₂ Pressures

Fabrication of the PES Membrane Embedded with Plasma-Modified Zeolite at Different O₂ Pressures