Magnetic styrene polymers obtained via coordination polymerization of styrene by Ni and Cu nanoparticles

Lourens, Anname; Falch, Anzel; Otto, Daniel P.; Malgas-Enus, Rehana

doi:10.1016/j.inoche.2022.109586

Cited by 4 publications

(5 citation statements)

References 43 publications

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“…These compounds include polycyclic aromatic hydrocarbons (PAHs), pharmaceuticals, pesticides, industrial used dyes and commercially used oil. [39,102] Magnetite has a high surface-tovolume ratio, strong absorption capability and fast kinetics and allows for easy magnetic separation making it ideal for removal of unwanted organic matter. [48] Furthermore, these nanoparticles can easily be regenerated with minimum secondary waste.…”

Section: Reduction Of Nitroarenesmentioning

confidence: 99%

“…For this study the authors bridged the gap between polymer catalysis and synthesis of polymer stabilized nanoparticles by introducing metals capable of polymerization on the SPION surface. [39] As polymers have been widely used in both the stabilization and an absorbent on the SPIONs surface, this is of great interest in decreasing the production cost associated with polymer-coated NPs. Cu-and Nicoated SPIONs were thus successfully synthesized by precipitation methods yielding relatively small NPs of 15-20 nm.…”

Section: Reduction Of Nitroarenesmentioning

confidence: 99%

“…These absorbents could successfully be isolated from the absorbed oil by ethanol washing and used up to 5 consecutive runs with slight decrease in its absorption capability. [39] Inorganic pollutant removal…”

Section: Reduction Of Nitroarenesmentioning

confidence: 99%

“…The use of these NPs as supports can also help to improve the stability and recyclability of previously unstable NPs. [39] The benefits of this design method thus allow for more active, stable and easily recyclable catalysts and absorbents to remove hazardous materials. Here we review the synthesis of nano-metal catalysts immobilized on magnetite as a support, and their efficiency in the treatment of common water pollutants.…”

Section: Introductionmentioning

confidence: 99%

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Magnetite immobilized metal nanoparticles in the treatment and removal of pollutants from wastewater: a review

2023

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The increase in population and industrial activities has resulted in harmful pollutants in our water sources that cause a concern for our future health and environmental well-being. These pollutants include pharmaceuticals, nitroarenes, synthetic dyes, oil and heavy metals that can be toxic, carcinogenic and lead to multiple organ failure. Conventional methods used to remove these toxins are of high cost, poor recyclability and low efficiency. Therefore, it is important to find suitable methods to purify industrial and household wastewater. Nanoparticles possess useful characteristics such as high surface-to-volume ratio, high optical absorption coefficient and tunable band edges for optimized catalytic capability. Magnetite NPs in specific have proven great efficiency in the removal and degradation of such pollutants as it is affordable, recyclable and easy to remove in the presence of an external magnetic field. Surface functionalization of these magnetic NPs is seen as an excellent bridge between homogeneous and heterogeneous catalysis. A metal catalyst immobilized on the surface of these magnetic nanoparticles (MNPs) affords customization and optimization of their properties for targeted applications. This study briefly discusses the synthesis of the magnetic core and different immobilization methods used to secure a metal catalyst onto its surface. This is followed by a detailed discussion where these metal catalysts immobilized on MNPs are used to improve its absorption and degradation capabilities in wastewater treatment.

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Section: Reduction Of Nitroarenesmentioning

confidence: 99%

Section: Reduction Of Nitroarenesmentioning

confidence: 99%

Section: Reduction Of Nitroarenesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Magnetite immobilized metal nanoparticles in the treatment and removal of pollutants from wastewater: a review

2023

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“…Also styrene is used for producing rubbers, latexes, and resins [6,8]. Magnetic composites derived from styrene are of great environmental importance as adsorbents for oil spills [9]. Propylene oxide is a raw material for production of many petrochemical products: polyurethanes, glycols, cosmetics, and medical preparations.…”

Section: Main Bodymentioning

confidence: 99%

Principles of aerobic oxidation of ethylbenzene to hydroperoxide under the presence of phthalimide catalysts

Kurganova,

Bayov,

Frolov

et al. 2023

From Chemistry Towards Technology Step-by-Step

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The article describes a study of basic principles of aerobic liquid-phase oxidation of ethylbenzene to hydroperoxide. According to the research, the use of phthalimide catalysts (N-hydroxyphthalimide and its derivatives) can increase the oxidation rate of this hydrocarbon by 1.5-2 times compared with initiators of different nature. At the same time, high selectivity of target hydroperoxide formation is still present - about 90%. The authors recommend conditions for oxidation of ethylbenzene in the presence of phthalimide catalysts based on experimental data. The results obtained can be used to improve the technology for co-production of propylene oxide and styrene, valuable products of the main chemical and petrochemical synthesis.

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PVC-Based Ultraviolet Screening Films Modified by Chitosan Capped ZnO–Hydroxyapatite

Wang,

Zhang,

2024

J Appl Spectrosc

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Magnetic styrene polymers obtained via coordination polymerization of styrene by Ni and Cu nanoparticles

Cited by 4 publications

References 43 publications

Magnetite immobilized metal nanoparticles in the treatment and removal of pollutants from wastewater: a review

Magnetite immobilized metal nanoparticles in the treatment and removal of pollutants from wastewater: a review

Principles of aerobic oxidation of ethylbenzene to hydroperoxide under the presence of phthalimide catalysts

PVC-Based Ultraviolet Screening Films Modified by Chitosan Capped ZnO–Hydroxyapatite

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