Structural characterization of PVDF/PVA polymer blend film doped with different concentration of NiO NPs for photocatalytic degradation of malachite green dye under visible light

Abstract

Structural, optical and photodegradation performance of PVDF/PVA polymer blend doped with different concentration of NiO NPs were studied using casting technique method. The effect of adding NiO NPs on PVDF/PVA are investigated using X-ray Diffraction (XRD), High Resolution Transmission Electron Microscope (HRTEM), Fourier Transform Infrared-Attenuated Total Reflection (FTIR-ATR), Ultraviolet-Visible Spectroscopy (UV-Vis), and High Resolution Scanning Electron Microscope (HRSEM). XRD results showed that the addition of NiO NPs increase the crystallinity of PVDF/PVA. The appearance and shifting of bands in FTIR-ATR indicate the structural change in the PVDF/PVA with adding NiO NPs combined with decrease in the band gap of nanocomposite films compared to pure blend in UV-Vis confirmed the incorporation of NiO NPs in PVDF/PVA. HRTEM shows

Bacillus thuringiensis Based Ruthenium/Nickel Co-Doped Zinc as a Green Nanocatalyst: Enhanced Photocatalytic Activity, Mechanism, and Efficient H2 Production from Sodium Borohydride Methanolysis

“…36-1451). , The 35.84°, 61.77°, and 75.53° angles corresponding to the (111), (220), and (311) planes are attributed to NiO (JCPDS file no. 65-2901). , The 27.32°, 39.02°, and 53.96° angles corresponding to the (110), (200), and (211) planes are attributed to RuO 2 (JCPDS no. 40-1290). − Considering these results, it was concluded that the crystal lattice structure of trimetallic bt RNZn NPs is a hexagonal wurtzite structure based on the peak density attributed to ZnO.…”

“…65-2901). 62,63 The 27.32°, 39.02°, and 53.96°angles corresponding to the (110), (200), and (211) planes are attributed to RuO 2 (JCPDS no. 40-1290).…”

Structural and dielectric characterization of synthesized nano-BSTO/PVDF composites for smart sensor applications

“…40,51–53 The absorption bands in the spectrum correspond to the different crystalline phases, with bands at 614 cm −1 , 761 cm −1 , 879 cm −1 , 979 cm −1 , and 1068 cm −1 corresponding to the α-phase, and bands at 840 cm −1 , 1180 cm −1 , and 1402 cm −1 corresponding to the β-phase. 52–54 It is found that the pure PVDF polymer is composed mainly of α and β-phases. The γ-phase is challenging to identify as it is not associated with unique FTIR bands.…”

Fabrication and characterization of (PVDF/PEO)/AgBiSe2 polymeric membrane with enhanced visible light photocatalytic performance

“…Darbandi et al 15 examined surfactantassisted PVDF membrane for the removal of azo dye and found that the removal of PVDF modified by Tween 60 is about 96%. Ismail et al 16 prepared PVDF/PVA membrane based on NiO for the removal of malachite green dye (95.4% removal).…”

“…Dye removal from wastewater is accomplished using various methods. Chemical methods include chemical oxidation, 16 ozonation, 17 physical methods including membrane separation, 18 photocatalytic degradation, 19,20 and adsorption. 21 Photocatalysis is gaining traction as a viable technology strategy across a variety of sectors due to its lower cost and low environmental impact.…”