Development and application of novel bio-magnetic membrane capsules for the removal of the cationic dye malachite green in wastewater treatment

Ali, Imran; Peng, Changsheng; Naz, Iffat; Lin, Dichu; Saroj, Devendra; Ali, Mohsin

doi:10.1039/c8ra09275c

Cited by 64 publications

(21 citation statements)

References 52 publications

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“…Such reusable nanoreactors possess great potential for carrying out chemical reactions in a controlled and highly efficient manner. Such important features may be useful in environmental protection for the effective removal of toxic, organic pollutants from the wastewater [ 182 , 183 ]. Moreover, the confined environment of the nanovesicle, as well as its shape, microviscosity and polarity, can significantly affect the kinetics and thermodynamics of the reaction by creating transition states that lower the activation energy barrier [ 184 ].…”

Section: Applications Of Oil-core Nanocapsulesmentioning

confidence: 99%

Polymer Capsules with Hydrophobic Liquid Cores as Functional Nanocarriers

et al. 2020

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Recent developments in the fabrication of core-shell polymer nanocapsules, as well as their current and future applications, are reported here. Special attention is paid to the newly introduced surfactant-free fabrication method of aqueous dispersions of nanocapsules with hydrophobic liquid cores stabilized by amphiphilic copolymers. Various approaches to the efficient stabilization of such vehicles, tailoring their cores and shells for the fabrication of multifunctional, navigable nanocarriers and/or nanoreactors useful in various fields, are discussed. The emphasis is placed on biomedical applications of polymer nanocapsules, including the delivery of poorly soluble active compounds and contrast agents, as well as their use as theranostic platforms. Other methods of fabrication of polymer-based nanocapsules are briefly presented and compared in the context of their biomedical applications.

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Section: Applications Of Oil-core Nanocapsulesmentioning

confidence: 99%

Polymer Capsules with Hydrophobic Liquid Cores as Functional Nanocarriers

et al. 2020

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“…Currently, there is an emerging research trend in the magnetic Fe 3 O 4 nanoparticles and their applications in the water/wastewater treatment, due to their dynamic morphology, desired size, super paramagnetic behavior and high saturation magnetization value . However, the agglomeration of MNPs limit their possible applications in the environmental protections . In order to solve such problems and extend their application fields, the surface modification and/or coating of Fe 3 O 4 nanoparticles by specific functional groups or materials become an effective way to obtain unique Fe 3 O 4 nanoparticles.…”

Section: Characterization Technologies Of Functional Magnetic Nanomentioning

confidence: 99%

An Overview of Surface‐Functionalized Magnetic Nanoparticles: Preparation and Application for Wastewater Treatment

Gao

2019

ChemistrySelect

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The removal of contaminant and recovery of valuable matters from wastewater remain a challenge in the field of industrial production. Among the developed technologies, adsorption method is of interest for researchers due to its low‐cost and facile operation. However, the traditional adsorbents always meet the problem of difficult recycling. Nowadays, surface functionalized magnetic nanomaterials have become a new kind of adsorbents with the potential application in the wastewater treatment because of their large surface area, high stability, weak coagulation, and especially reusability due to its super‐paramagnetic properties in a magnetic field. The extraction capacity of pollutants is mainly related to the features of functional groups grafted on the surface of Fe3O4 nanoparticles. This review mainly focuses on recent progress on the functional modification methods of magnetic Fe3O4 nanoparticles by inorganic molecules, small organic molecules, and organic polymer materials. The advantages and disadvantages of magnetic Fe3O4 nanoparticles modified by various functional groups, application and interaction mechanism in the wastewater treatment are also reviewed. Finally, the development trend of surface modified magnetic adsorption materials in the future wastewater treatment field is prospected.

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“…Thus, these pollutants must be removed from the water (1). Several methods have been reported for the removal of dyes from wastewater such as adsorption (2)(3)(4)(5)(6)(7)(8)(9)(10)(11), membrane filtration (12,13), oxidation (14), coagulation-flocculation (15), and photocatalytic process (16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28). Each of these methods has their advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

A Sharp Jump in Photocatalytic Activity of Elemental Sulfur for Dye Degradation in Alkaline Solution

Peyman

Azizian

2020

Photochem & Photobiology

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Elemental sulfur is a low‐cost and abundant substance as one of the largest by‐products of the oil industry which was widely used in many industrial activities. Cyclo‐octasulfur (S8) is one of the sulfur allotropes that is a very stable substance in standard conditions. In this study, we report a low‐cost and fast method for the degradation of methyl violet in water under visible light and also sunlight by using elemental sulfur (S8). The results show that sulfur is a good photocatalyst which operates under visible light and can be utilized for degradation of methyl violet. The photocatalytic degradation of methyl violet in acidic, neutral, and alkaline media was investigated, and it was found that the photocatalytic efficiency increases dramatically in alkaline solution. The effects of the initial concentration of the dye, photocatalyst dosage, solution pH, and photocatalyst reusability were investigated. The kinetics of the reaction were studied in detail, and the photocatalytic rate equation was presented.

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Development and application of novel bio-magnetic membrane capsules for the removal of the cationic dye malachite green in wastewater treatment

Abstract: Novel bio-magnetic membrane capsules were prepared by a simple two-step titration-gel cross-linking method using a polyvinyl alcohol and sodium alginate matrix to control the disintegration of phytogenic magnetic nanoparticles in aqueous media.

Cited by 64 publications

References 52 publications

Polymer Capsules with Hydrophobic Liquid Cores as Functional Nanocarriers

Polymer Capsules with Hydrophobic Liquid Cores as Functional Nanocarriers

An Overview of Surface‐Functionalized Magnetic Nanoparticles: Preparation and Application for Wastewater Treatment

A Sharp Jump in Photocatalytic Activity of Elemental Sulfur for Dye Degradation in Alkaline Solution

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