Facile synthesis of polypyrrole encapsulated V2O5 nanohybrids for visible light driven green sonophotocatalytic degradation of antibiotics

Zia, Jannatun; Kashyap, Jyoti; Riaz, Ufana

doi:10.1016/j.molliq.2018.10.091

Cited by 44 publications

(27 citation statements)

References 54 publications

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“…The band at 971 cm −1 is due to V=O stretching [23,24]. Bands at 837 and 554 cm −1 are assigned to V-O-V deformation modes [24,25]. V2O5 is transition metal oxide, and the vibration of vanadium oxygen group is concentrated in the range of 400-1000 cm −1 .…”

Section: Ftir Spectroscopic Analysismentioning

confidence: 99%

“…The band at around 1595 cm −1 is allocated to a stretching vibration of C=C in the Py ring [23][24][25][26]. The absorption band at 1337 cm −1 is related to C-H in plane deformation modes [23][24][25][26]. The characteristic absorption bands at 1213 and 1050 cm −1 are due to the stretching vibrations of C-N and C-H of PPy, respectively [23].…”

Section: Ftir Spectroscopic Analysismentioning

confidence: 99%

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Synthesis of Polypyrrole/V2O5 Composite Film on the Surface of Magnesium Using a Mild Vapor Phase Polymerization (VPP) Method for Corrosion Resistance

Sun

et al. 2020

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The vapor phase polymerization (VPP) method is a conventional strategy for synthesizing conducting polymers (CPs) on the surfaces of various materials. However, the current VPP method performed on a metal surface usually requires harsh reaction conditions, such as high temperature and low vacuum. In this paper, a polypyrrole (PPy) and vanadium pentoxide (V2O5) composite film was synthesized on the surface of Mg using a mild VPP method. Here, V2O5 was used as an oxidant, and it was found that the oxidation of pyrrole (Py) vapor on the surface of V2O5, which had been previously coated on the surface of Mg, could be performed at room temperature under normal atmospheric pressure. The formation of the PPy/V2O5 composite was verified by Fourier transform infrared spectroscopy (FTIR) and energy dispersive X-ray (EDX) spectroscopy. A thermogravimetric analyzer (TGA) was used to study the thermal stability of the composite. Subsequent corrosion tests showed that the PPy/V2O5 composite film could slow down the corrosion of Mg in 3.5 wt% NaCl. It is expected that the mild VPP method may find great potential in the fields of synthesis of CPs and the corrosion protection of reactive metals.

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Section: Ftir Spectroscopic Analysismentioning

confidence: 99%

Section: Ftir Spectroscopic Analysismentioning

confidence: 99%

Synthesis of Polypyrrole/V2O5 Composite Film on the Surface of Magnesium Using a Mild Vapor Phase Polymerization (VPP) Method for Corrosion Resistance

Sun

et al. 2020

Coatings

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“…Aliquots of the suspension were withdrawn at regular intervals (5, 10, 20, 30 and 40 min) and the UV spectra were recorded. The degraded fragments were analyzed by LC‐MS technique according to the method reported in our previous studies 26,27 . The reusability test of the catalyst was repeated up to four cycles and each cycle was carried out for a period of 40 min 27 …”

Section: Characterizationmentioning

confidence: 99%

“…The degraded fragments were analyzed by LC-MS technique according to the method reported in our previous studies. 26,27 The reusability test of the catalyst was repeated up to four cycles and each cycle was carried out for a period of 40 min. 27…”

Section: Adsorption Studiesmentioning

confidence: 99%

Microwave‐assisted catalytic activity of superparamagnetic spinel ferrites

Riaz

Ashraf

Aazam³

2021

J of Chemical Tech & Biotech

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BACKGROUND Superparamagnetic spinel ferrites were synthesized through a facile one‐step co‐precipitation technique using carbonate salt as precursor. RESULTS The synthesized ferrite nanoparticles of type MFe2O4 exhibited remarkably high magnetism even under microwave irradiation, which was utilized for the microwave‐assisted degradation of Alizarin Red (AR) dye. The formation of •OH radicals under microwave irradiation was detected by the radical scavenging studies, which suggested that these radicals played an important role in the microwave‐assisted catalytic reaction. CONCLUSION This facile synthetic approach can lead to the design and preparation of microwave‐active magnetic spinels with an excellent ability to remove organic pollutants in wastewater. © 2021 Society of Chemical Industry.

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“…coupled photocatalytic degradation with bioremediation and reported 94% OTC degradation. Zia et al . reported that polypyrrole‐encapsulated V 2 O 5 nanohybrids effectively degraded 74% of ciproflaxin in aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

V₂O₅/RGO/Pt nanocomposite on oxytetracycline degradation and pharmaceutical effluent detoxification

Mohan

Lim

Lee

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND: Antibiotics have been identified as significant pollutants owing to their adverse impact on the environment through the development of antibiotic-resistant bacteria. In a previous study, an e-waste-based reduced graphene oxide-V 2 O 5 -platinum (RGOV-Pt(1%)) nanocomposite was prepared and subsequently used for the photocatalytic degradation of oxytetracycline (OTC), a tetracycline group of antibiotics. RESULTS:This study aimed to assess the impact of additives such as H 2 O 2 , NaCl, Na 2 CO 3 , ethanol and persulfate on the photocatalytic degradation of OTC using RGOV-Pt(1%) nanocomposite. The results showed that the degradation efficiency decreased in the presence of NaCl and Na 2 CO 3 owing to the electron-hole scavenging property of their anions. Low concentrations of H 2 O 2 (up to 10 mmol L -1 ) increased the OTC degradation efficiency, whereas high concentrations decreased the OTC degradation owing to the quenching of hydroxyl radicals. However, the presence of persulfate increased the OTC degradation efficiency owing to the formation of hydroxyl radicals. Furthermore, the OTC degradation pathway was elucidated using high-performance liquid chromatography/tandem mass spectrometry (HPLC/MS/MS). The study was extended to real pharmaceutical effluent and the degradation efficiency was found to be less for real effluent (87%) in comparison with OTC (99%) in aqueous solution.CONCLUSION: RGOV-Pt(1%) photocatalyst effectively degraded OTC. An OTC degradation pathway was proposed based on the intermediates formed. The impact of additives was established. Effective real pharmaceutical effluent detoxification was observed. Thus the synthesized RGOV-Pt(1%) nanocomposite is a hopeful alternative for the removal of antibiotics in contaminated waters and sites.1.5 g L −1 (Fig. 4(C)). Almost complete degradation (99%) was observed in the absence of NaCl at the end of 60 min, while the degradation efficiency decreased to 78% with increased concentration of NaCl (1.5 g L −1 ). The decrease in the OTC degradation is J Chem Technol Biotechnol 2020; 95: 297-307

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Facile synthesis of polypyrrole encapsulated V2O5 nanohybrids for visible light driven green sonophotocatalytic degradation of antibiotics

Cited by 44 publications

References 54 publications

Synthesis of Polypyrrole/V2O5 Composite Film on the Surface of Magnesium Using a Mild Vapor Phase Polymerization (VPP) Method for Corrosion Resistance

Synthesis of Polypyrrole/V2O5 Composite Film on the Surface of Magnesium Using a Mild Vapor Phase Polymerization (VPP) Method for Corrosion Resistance

Microwave‐assisted catalytic activity of superparamagnetic spinel ferrites

V₂O₅/RGO/Pt nanocomposite on oxytetracycline degradation and pharmaceutical effluent detoxification

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Facile synthesis of polypyrrole encapsulated V2O5 nanohybrids for visible light driven green sonophotocatalytic degradation of antibiotics

Cited by 44 publications

References 54 publications

Synthesis of Polypyrrole/V2O5 Composite Film on the Surface of Magnesium Using a Mild Vapor Phase Polymerization (VPP) Method for Corrosion Resistance

Synthesis of Polypyrrole/V2O5 Composite Film on the Surface of Magnesium Using a Mild Vapor Phase Polymerization (VPP) Method for Corrosion Resistance

Microwave‐assisted catalytic activity of superparamagnetic spinel ferrites

V2O5/RGO/Pt nanocomposite on oxytetracycline degradation and pharmaceutical effluent detoxification

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V₂O₅/RGO/Pt nanocomposite on oxytetracycline degradation and pharmaceutical effluent detoxification