Polymer immobilized Fe(III) complex of 2-phenylbenzimidazole: An efficient catalyst for photodegradation of dyes under UV/Visible light irradiation

Shilpa, E.R.; Gayathri, V.

doi:10.1016/j.jscs.2017.12.004

Cited by 19 publications

(10 citation statements)

References 37 publications

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“…[22][23][24] Photosensitizer-catalyzed transformations have shown very important applications in photochemistry. [25][26][27] Numerous achievements have been reported in this eld. For example, Guo group reported selective cleavage and formation of C sp 2-I bond, using carefully-designed thioxanthone derivative.…”

Section: Introductionmentioning

confidence: 98%

Aerobic photooxidative hydroxylation of boronic acids catalyzed by anthraquinone-containing polymeric photosensitizer

Chen

Ding

2020

RSC Adv.

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Section: Introductionmentioning

confidence: 98%

Aerobic photooxidative hydroxylation of boronic acids catalyzed by anthraquinone-containing polymeric photosensitizer

Chen

Ding

2020

RSC Adv.

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“…In fact, during the last few years, water quality was deteriorated because of its contamination by emergent pollutants such as pharmaceutical compounds 2 , personal care products 3 and especially organic dyes released into the environment by the paper, textile, cosmetic, food and pharmaceutical industries 4 . These synthetic dyes represent a threat for human health and ecosystem because of their toxicity, non-biodegradability, and their carcinogenic effects 5 .…”

Section: Introductionmentioning

confidence: 99%

New hybrid MOF/polymer composites for the photodegradation of organic dyes

Brahmi

Benltifa²,

Vaulot³

et al. 2021

European Polymer Journal

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Hybrid Metal Organic-Frameworks (MOF)/polymer materials have gathered many researcher's consideration thanks to their varied functionalities and high processability.Herein, Metal Organic Frameworks (MOFs) have been successfully incorporated into an acrylate polymer network by photopolymerization upon mild visible light irradiation at 405 nm. The synthesized MOF/polymer composites were very efficient for Acid Black removal from water reaching 96% of decomposition after 30 and 45 min of UV-Lamp irradiation in the presence of MIL-53(Cr)/polymer and HKUSTI-1(Cu)/polymer composites, respectively. Probing further, the photo-composites were characterized by several techniques including Thermogravimetric Analysis (TGA), Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy-dispersive X-ray 2 analyses (EDX), X-Ray Diffraction analysis (DRX), Brunauer, Emmett and Teller (BET) specific surface area, Atomic Force Microscopy (AFM), Dynamic Mechanical Analysis (DMA) and UV-Visible diffuse reflectance spectroscopy. The different methods used to characterized the MOF-containing polymers revealed these polymers to exhibit a high rigidity, an excellent thermal stability, an interesting band gap energy as well as an exceptional stability after their reuse for many photocatalytic treatment cycles.

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“…One of the most important advances in this field has been the development of heterogeneous iron-containing catalysts [ 33 , 34 , 35 ], which can be removed and stored after operation, as well as being easily coupled to water treatment systems [ 8 , 33 ]. The catalysts’ supporting matrices used so far include carbon nanotubes with Fe 3 O 4 [ 33 ], Fe 2 O 3 –carbon fiber [ 34 ], and iron complexes covalently bound to polymers [ 36 ], as well as complexing solid phases such as nafion, zeolite, activated charcoal, clay, resin, and silica [ 8 ]. Some of those solid phases, however, display medium-to-low conversions [ 13 ], have high costs, and involve complex synthetic procedures, since they are based on the design of tailor-made ligands or chemical grafting [ 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

“…The catalysts’ supporting matrices used so far include carbon nanotubes with Fe 3 O 4 [ 33 ], Fe 2 O 3 –carbon fiber [ 34 ], and iron complexes covalently bound to polymers [ 36 ], as well as complexing solid phases such as nafion, zeolite, activated charcoal, clay, resin, and silica [ 8 ]. Some of those solid phases, however, display medium-to-low conversions [ 13 ], have high costs, and involve complex synthetic procedures, since they are based on the design of tailor-made ligands or chemical grafting [ 36 , 37 ]. An interesting and unexplored alternative as a supporting phase is the use of molecularly imprinted polymers (MIPs) [ 38 , 39 ], since they can provide robust, inexpensive, and reusable matrix-bearing iron-loaded catalytic sites where the H 2 O 2 -mediated degradation of the target pollutants can occur [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

Fe(III)-Complex-Imprinted Polymers for the Green Oxidative Degradation of the Methyl Orange Dye Pollutant

et al. 2021

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One of the biggest problems worldwide is the pollution of natural water bodies by dyes coming from effluents used in the textile industry. In the quest for novel effluent treatment alternatives, the aim of this work was to immobilize Fe(III) complexes in molecularly imprinted polymers (MIPs) to produce efficient Fenton-like heterogeneous catalysts for the green oxidative degradation of the methyl orange (MO) dye pollutant. Different metal complexes bearing commercial and low-cost ligands were assayed and their catalytic activity levels towards the discoloration of MO by H2O2 were assessed. The best candidates were Fe(III)-BMPA (BMPA = di-(2-picolyl)amine) and Fe(III)-NTP (NTP = 3,3′,3″-nitrilotripropionic acid), displaying above 70% MO degradation in 3 h. Fe(III)-BMPA caused the oxidative degradation through two first-order stages, related to the formation of BMPA-Fe-OOH and the generation of reactive oxygen species. Only the first of these stages was detected for Fe(III)-NTP. Both complexes were then employed to imprint catalytic cavities into MIPs. The polymers showed catalytic profiles that were highly dependent on the crosslinking agent employed, with N,N-methylenebisacrylamide (MBAA) being the crosslinker that rendered polymers with optimal oxidative performance (>95% conversion). The obtained ion-imprinted polymers constitute cheap and robust solid matrices, with the potential to be coupled to dye-containing effluent treatment systems with synchronous H2O2 injection.

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Polymer immobilized Fe(III) complex of 2-phenylbenzimidazole: An efficient catalyst for photodegradation of dyes under UV/Visible light irradiation

Cited by 19 publications

References 37 publications

Aerobic photooxidative hydroxylation of boronic acids catalyzed by anthraquinone-containing polymeric photosensitizer

Aerobic photooxidative hydroxylation of boronic acids catalyzed by anthraquinone-containing polymeric photosensitizer

New hybrid MOF/polymer composites for the photodegradation of organic dyes

Fe(III)-Complex-Imprinted Polymers for the Green Oxidative Degradation of the Methyl Orange Dye Pollutant

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