Magnetically recyclable ZnCo2O4/Co3O4 nano-photocatalyst: Green combustion preparation, characterization and its application for enhanced degradation of contaminated water under sunlight

Heidari-Asil, Seyed Ali; Zinatloo-Ajabshir, Sahar; Alshamsi, Hassan Abbas; Al‐Nayili, Abbas; Yousif, Qahtan A.; Salavati‐Niasari, Masoud

doi:10.1016/j.ijhydene.2022.03.157

Cited by 45 publications

(13 citation statements)

References 48 publications

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“…To study the structural characterization, the XRD spectra of rGO, TiO 2 , and rGO‐TiO 2 were presented in Figure 6b. By comparing the TiO 2 pattern with references, it can be seen that the crystallization of TiO 2 is in the form of anatase (hexagonal structure) 13,30,31 . Existence of TiO 2 anatase characteristic peaks in 25.5, 37.9, 0.48, 54.3, and 55.1 related to (101), (004), (200), (105), and (211) was observed 13,30,31 .…”

Section: Resultsmentioning

confidence: 93%

“…By comparing the TiO 2 pattern with references, it can be seen that the crystallization of TiO 2 is in the form of anatase (hexagonal structure) 13,30,31 . Existence of TiO 2 anatase characteristic peaks in 25.5, 37.9, 0.48, 54.3, and 55.1 related to (101), (004), (200), (105), and (211) was observed 13,30,31 . In the rGO‐TiO 2 XRD pattern, there was no displacement in the characteristic TiO 2 peaks, indicating no change in its tetragonal structure.…”

Section: Resultsmentioning

confidence: 97%

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Fabrication of PAN/PA6//rGO‐TiO₂ electrospun nanofibers membrane with self‐cleaning performance under visible‐light

Ebrahimi

Nabavi

Omrani

2022

J of Applied Polymer Sci

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Regenerative photocatalytic membranes have gained considerable attention for both their unique properties and practical applications in energy and environmental areas. Reduced graphene oxide-titanium dioxide (rGO-TiO 2 ) electrosprayed onto an electrospun PAN/PA6 for photocatalytic and antifouling experiments. The prepared nanohybrid and membrane a were characterized using FESEM, TEM, AFM, EDX, XRD and DRS techniques. Simultaneous electrospinning of PAN and PA6 increased the mechanical strength of nanofibers by 85%. The rGO-TiO 2 caused increased hydrophilicity, wettability, and ultrahigh water flux up to 1885 Lm À2 h À1 in the fabricated membrane. The membrane has good rejection ratio for methylene blue and the photodegradation of MB can occur in the presence of visible light (λ = 440-830 nm) and can recover its permeability. The fabricated structure, has the lowest total and irreversible membrane fouling ratio, giving the membrane higher antifouling and self-cleaning properties.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 97%

Fabrication of PAN/PA6//rGO‐TiO₂ electrospun nanofibers membrane with self‐cleaning performance under visible‐light

Ebrahimi

Nabavi

Omrani

2022

J of Applied Polymer Sci

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“…Besides the type of fuel, quantity of fuel is also one fundamental factor in SCS, influencing the physical and chemical parameters of the derived product. 159,166 Fuel amount is usually given as the fuel-to-oxidizer ratio Φ. A specific method based on the oxidizing and reducing valences of the precursor mixture is employed for thermodynamic calculations.…”

Section: Amount Of Fuel and The φ Coefficient For The Scs Methodsmentioning

confidence: 99%

“…A large variety of polar organic molecules (compounds) such as hydrazides, carboxylic acids, amines/amides (carbamide/ urea) compounds, amino acids, saccharides and combinations of different functional groups in a single molecule have been used as fuel (or reducing agent) for the SCS of nanostructured materials. 22,158,159 Structures of some commonly used fuels are shown in Fig. 18.…”

Section: Role and Type Of Fuelmentioning

confidence: 99%

“…Facilitating charge transfer within a heterojunction is the one prime advantage of making heterojunctions. 159,338,339 Bajiri et al 335 demonstrated that ZnO can be coupled with a suitable semiconductor to fabricate a direct Z-scheme photocatalyst. For this purpose, a CuO/ZnO/g-C 3 N 4 heterojunction was synthesized via the SCS route.…”

Section: Synthesis Of Nanocomposites For Photocatalytic Applicationsmentioning

confidence: 99%

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Solution combustion synthesis: the relevant metrics for producing advanced and nanostructured photocatalysts

et al. 2022

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Improving water resistance property of starch straw by synergistic effects of chemical crosslinking, physical barrier, and surface modifications

Yang,

Fu,

Alee

et al. 2023

J of Applied Polymer Sci

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Starch straws are developed by focusing on improving the critical weakness of all starch-based materials: moisture sensitivity. Various technologies including blending (with hydrogel carrageen), chemical crosslinking (using citric and boric acids, and furfural), physical barrier (using talc), and surface modifications (by adding stearic acid, or hot oxalic acids) are evaluated, and then synergized in this study. The materials and products are characterized by Fourier transform infrared spectroscopy, contact angle, mechanical properties, water solubility and water absorption. All the trends of individual modification are similar to previous work but it was found that the influence of some modifications on the extruded straws was significantly different from that of the casting films reported previously since extrusion with high shear stress can destroy chemical and physical crosslinking or network formed. It was found that there was a maximum acid content to improve the water sensitivity since the excessive amount of acid could degrade starch and have more damage to the crosslinking during extrusion, resulting in decreasing mechanical properties and increasing solubility. On the other hand, some synergic functions, like crosslinked by additional citric acid and surface treatment by hot oxalic acid, were observed. The promising starch straws are developed based on synergic methodologies, in which typical samples were prepared by crosslinking using citric (1 w%), boric (2 w%), talc (3 w%), and stearic acids (1 w%) and treated with hot oxalic acids for 2 s. The optimized straw can be smoothly processed, reduced water absorption significantly (55.3%), and mechanical properties (modulus) increased about 54% compared with neat starch one after being immersed in water at room temperature (25 C) for 20 min. This synergic strategy provides a useful guideline for developing starch-based materials with low moisture sensitivity.

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Magnetically recyclable ZnCo2O4/Co3O4 nano-photocatalyst: Green combustion preparation, characterization and its application for enhanced degradation of contaminated water under sunlight

Cited by 45 publications

References 48 publications

Fabrication of PAN/PA6//rGO‐TiO₂ electrospun nanofibers membrane with self‐cleaning performance under visible‐light

Fabrication of PAN/PA6//rGO‐TiO₂ electrospun nanofibers membrane with self‐cleaning performance under visible‐light

Solution combustion synthesis: the relevant metrics for producing advanced and nanostructured photocatalysts

Improving water resistance property of starch straw by synergistic effects of chemical crosslinking, physical barrier, and surface modifications

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Magnetically recyclable ZnCo2O4/Co3O4 nano-photocatalyst: Green combustion preparation, characterization and its application for enhanced degradation of contaminated water under sunlight

Cited by 45 publications

References 48 publications

Fabrication of PAN/PA6//rGO‐TiO2 electrospun nanofibers membrane with self‐cleaning performance under visible‐light

Fabrication of PAN/PA6//rGO‐TiO2 electrospun nanofibers membrane with self‐cleaning performance under visible‐light

Solution combustion synthesis: the relevant metrics for producing advanced and nanostructured photocatalysts

Improving water resistance property of starch straw by synergistic effects of chemical crosslinking, physical barrier, and surface modifications

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Product

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Fabrication of PAN/PA6//rGO‐TiO₂ electrospun nanofibers membrane with self‐cleaning performance under visible‐light

Fabrication of PAN/PA6//rGO‐TiO₂ electrospun nanofibers membrane with self‐cleaning performance under visible‐light