Novel meta- and AB-Polybenzimidazole/Zinc oxide polymer hybrid nanomaterials for photocatalytic degradation of organic dyes

Penchev, Hristo; Zaharieva, Katerina; Milenova, Katya; Ublekov, Filip; Dimova, Svetlana; Budurova, Dessislava; Staneva, Maya; Stambolova, I.; Sinigersky, Vesselin; Blaskov, V.

doi:10.1016/j.matlet.2018.07.114

Cited by 12 publications

(3 citation statements)

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“…[60] Also, Fe and Mo-based catalyst (Fe 3 Mo 3 N) Reprinted with permission from ref. [48] obtained after nitriding FeMoO 4 have exceeded in catalytic activity as compared to corresponding monometallic Mo 2 N. [61] Wang et al [62] also investigated Co and Fe-based bimetallic catalyst and gained a higher catalytic conversion (53 %) than that of the monometallic forms of Co (25 %) and Fe (4 %) at 550 °C. The change in surface properties of bimetallic catalysts depends upon their high stability during the reaction as well as their segregation to the monometallic phase, consequently, influencing their catalytic performance.…”

Section: Effect Of Metal Typementioning

confidence: 99%

Recent Advances in Bimetallic Catalysts for Hydrogen Production from Ammonia

Khan

Alasiri

Ali

et al. 2022

The Chemical Record

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The emerging concept of the hydrogen economy is facing challenges associated with hydrogen storage and transport. The utilization of ammonia as an energy (hydrogen) carrier for the on‐site generation of hydrogen via ammonia decomposition has gained attraction among the scientific community. Ruthenium‐based catalysts are highly active but their high cost and less abundance are limitations for scale‐up application. Therefore, combining ruthenium with cheaper transition metals such as nickel, cobalt, iron, molybdenum, etc., to generate metal‐metal (bimetallic) surfaces suitable for ammonia decomposition has been investigated in recent years. Herein, the recent trends in developing bimetallic catalyst systems, the role of metal type, support materials, promoter, synthesis techniques, and the investigations of the reaction kinetics and mechanism for ammonia decomposition have been reviewed.

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Section: Effect Of Metal Typementioning

confidence: 99%

Recent Advances in Bimetallic Catalysts for Hydrogen Production from Ammonia

Khan

Alasiri

Ali

et al. 2022

The Chemical Record

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“…Other researchers have incorporated nanosilica, ZnO, alumina, and similar additives to improve the mechanical strength of epoxy coatings and to block UV light [6][7][8][9][10][11][12]. Among the various metal oxides, ZnO is considered to be one of the most promising materials for photocatalytic and corrosion protective applications, especially after additional polymeric modifications [13][14][15]. Additionally, this compound ensures an enhanced protective ability by forming corrosion products with barrier properties on the metal surface [15].…”

Section: Introductionmentioning

confidence: 99%

Modified Approach Using Mentha arvensis in the Synthesis of ZnO Nanoparticles—Textural, Structural, and Photocatalytic Properties

et al. 2022

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Zinc oxide arouses considerable interest since it has many applications—in microelectronics, environmental decontaminations, biomedicine, photocatalysis, corrosion, etc. The present investigation describes the green synthesis of nanosized ZnO particles using a low-cost, ecologically friendly approach compared to the classical methods, which are aimed at limiting their harmful effects on the environment. In this study, ZnO nanoparticles were prepared using an extract of Mentha arvensis (MA) leaves as a stabilizing/reducing agent, followed by hydrothermal treatment at 180 °C. The resulting powder samples were characterized by X-ray diffraction (XRD) phase analysis, infrared spectroscopy (IRS), scanning electron microscopy (SEM), and electron paramagnetic resonance (EPR). The specific surface area and pore size distribution were measured by the Brunauer–Emmett–Taylor (BET) method. Electronic paramagnetic resonance spectra were recorded at room temperature and at 123 K by a JEOL JES-FA 100 EPR spectrometer. The intensity of the bands within the range of 400–1700 cm−1 for biosynthesized ZnO (BS-Zn) powders decreased with the increase in the Mentha arvensis extract concentration. Upon increasing the plant extract concentration, the relative proportion of mesopores in the BS-Zn samples also increased. It was established that the photocatalytic performance of the biosynthesized powders was dependent on the MA concentration in the precursor solution. According to EPR and PL analyses, it was proved that there was a presence of singly ionized oxygen vacancies (V0+) and zinc interstitials (Zni). The use of the plant extract led to changes in the morphology, phase composition, and structure of the ZnO particles, which were responsible for the increased photocatalytic rate of discoloration of Malachite Green dye.

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“…Most of the organic dyes are toxic and carcinogenic, and unfortunately, most of them are hardly degradable [1–3]. Up to now, many technologies have been developed for the treatment of the dyestuffs wastewater, such as photocatalytic degradation [4, 5], microbiological degradation [6], chemical oxidation [7] and adsorption [8–10]. Among these methods, the adsorption technique appears to be one of the most effective selections due to its low cost and simple operation.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Fe ₃ O ₄ @C submicron rods for adsorption of methylene blue and fast separation from water

Sun

Zhu

et al. 2019

Micro & Nano Letters

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In this study, Fe 3 O 4 @C submicron rods were successfully prepared by an oxalate thermal decomposition-glucose hydrothermal carbonisation process. The adsorption property of the Fe 3 O 4 @C submicron rods to methylene blue was researched. The results show that the adsorption process conforms to the Langmuir isotherm model and pseudo-second-order kinetic model. The Fe 3 O 4 @C submicron rods show a comparable adsorption capacity compared with Fe 3 O 4 @C nanoparticles, but their separation speed under an external magnetic field is much faster than that of Fe 3 O 4 @C nanoparticles. These make the Fe 3 O 4 @C submicron rods an ideal material for the adsorption of the organic contaminant from water.

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Novel meta- and AB-Polybenzimidazole/Zinc oxide polymer hybrid nanomaterials for photocatalytic degradation of organic dyes

Cited by 12 publications

References 10 publications

Recent Advances in Bimetallic Catalysts for Hydrogen Production from Ammonia

Recent Advances in Bimetallic Catalysts for Hydrogen Production from Ammonia

Modified Approach Using Mentha arvensis in the Synthesis of ZnO Nanoparticles—Textural, Structural, and Photocatalytic Properties

Preparation of Fe ₃ O ₄ @C submicron rods for adsorption of methylene blue and fast separation from water

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Novel meta- and AB-Polybenzimidazole/Zinc oxide polymer hybrid nanomaterials for photocatalytic degradation of organic dyes

Cited by 12 publications

References 10 publications

Recent Advances in Bimetallic Catalysts for Hydrogen Production from Ammonia

Recent Advances in Bimetallic Catalysts for Hydrogen Production from Ammonia

Modified Approach Using Mentha arvensis in the Synthesis of ZnO Nanoparticles—Textural, Structural, and Photocatalytic Properties

Preparation of Fe 3 O 4 @C submicron rods for adsorption of methylene blue and fast separation from water

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Product

Resources

About

Preparation of Fe ₃ O ₄ @C submicron rods for adsorption of methylene blue and fast separation from water